Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
d9466585b7
NetBSD/sys/ufs/lfs/lfs_vnops.c

855 lines
25 KiB
C
Raw Normal View History

make filesystem vnodeop, specop, fifoop and vnodeopv_* arrays const
2001-01-22 15:17:35 +03:00
/* $NetBSD: lfs_vnops.c,v 1.50 2001/01/22 12:17:43 jdolecek Exp $ */
New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD'
1994-06-29 10:39:25 +04:00
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
/*-
Various bug-fixes to LFS, to wit: Kernel: * Add runtime quantity lfs_ravail, the number of disk-blocks reserved for writing. Writes to the filesystem first reserve a maximum amount of blocks before their write is allowed to proceed; after the blocks are allocated the reserved total is reduced by a corresponding amount. If the lfs_reserve function cannot immediately reserve the requested number of blocks, the inode is unlocked, and the thread sleeps until the cleaner has made enough space available for the blocks to be reserved. In this way large files can be written to the filesystem (or, smaller files can be written to a nearly-full but thoroughly clean filesystem) and the cleaner can still function properly. * Remove explicit switching on dlfs_minfreeseg from the kernel code; it is now merely a fs-creation parameter used to compute dlfs_avail and dlfs_bfree (and used by fsck_lfs(8) to check their accuracy). Its former role is better assumed by a properly computed dlfs_avail. * Bounds-check inode numbers submitted through lfs_bmapv and lfs_markv. This prevents a panic, but, if the cleaner is feeding the filesystem the wrong data, you are still in a world of hurt. * Cleanup: remove explicit references of DEV_BSIZE in favor of btodb()/dbtob(). lfs_cleanerd: * Make -n mean "send N segments' blocks through a single call to lfs_markv". Previously it had meant "clean N segments though N calls to lfs_markv, before looking again to see if more need to be cleaned". The new behavior gives better packing of direct data on disk with as little metadata as possible, largely alleviating the problem that the cleaner can consume more disk through inefficient use of metadata than it frees by moving dirty data away from clean "holes" to produce entirely clean segments. * Make -b mean "read as many segments as necessary to write N segments of dirty data back to disk", rather than its former meaning of "read as many segments as necessary to free N segments worth of space". The new meaning, combined with the new -n behavior described above, further aids in cleaning storage efficiency as entire segments can be written at once, using as few blocks as possible for segment summaries and inode blocks. * Make the cleaner take note of segments which could not be cleaned due to error, and not attempt to clean them until they are entirely free of dirty blocks. This prevents the case in which a cleanerd running with -n 1 and without -b (formerly the default) would spin trying repeatedly to clean a corrupt segment, while the remaining space filled and deadlocked the filesystem. * Update the lfs_cleanerd manual page to describe all the options, including the changes mentioned here (in particular, the -b and -n flags were previously undocumented). fsck_lfs: * Check, and optionally fix, lfs_avail (to an exact figure) and lfs_bfree (within a margin of error) in pass 5. newfs_lfs: * Reduce the default dlfs_minfreeseg to 1/20 of the total segments. * Add a warning if the sgs disklabel field is 16 (the default for FFS' cpg, but not usually desirable for LFS' sgs: 5--8 is a better range). * Change the calculation of lfs_avail and lfs_bfree, corresponding to the kernel changes mentioned above. mount_lfs: * Add -N and -b options to pass corresponding -n and -b options to lfs_cleanerd. * Default to calling lfs_cleanerd with "-b -n 4". [All of these changes were largely tested in the 1.5 branch, with the idea that they (along with previous un-pulled-up work) could be applied to the branch while it was still in ALPHA2; however my test system has experienced corruption on another filesystem (/dev/console has gone missing :^), and, while I believe this unrelated to the LFS changes, I cannot with good conscience request that the changes be pulled up.]
2000-09-09 08:49:54 +04:00
* Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Konrad E. Schroder <perseant@hhhh.org>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
/*
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
* Copyright (c) 1986, 1989, 1991, 1993, 1995
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
* @(#)lfs_vnops.c 8.13 (Berkeley) 6/10/95
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/resourcevar.h>
#include <sys/kernel.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/buf.h>
#include <sys/proc.h>
#include <sys/conf.h>
#include <sys/mount.h>
#include <sys/vnode.h>
#include <sys/malloc.h>
Use the pool allocator and the "nointr" pool page allocator for LFS inodes.
1998-09-01 07:26:05 +04:00
#include <sys/pool.h>
lfs prototypes
1996-02-10 01:28:45 +03:00
#include <sys/signalvar.h>
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
#include <miscfs/fifofs/fifo.h>
Add a set of generic file system operations that most file systems use. Also, fix some time stamp bogosities.
1996-09-02 03:47:48 +04:00
#include <miscfs/genfs/genfs.h>
#include <miscfs/specfs/specdev.h>
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
#include <ufs/ufs/quota.h>
#include <ufs/ufs/inode.h>
#include <ufs/ufs/dir.h>
#include <ufs/ufs/ufsmount.h>
#include <ufs/ufs/ufs_extern.h>
#include <ufs/lfs/lfs.h>
#include <ufs/lfs/lfs_extern.h>
/* Global vfs data structures for lfs. */
lfs prototypes
1996-02-10 01:28:45 +03:00
int (**lfs_vnodeop_p) __P((void *));
make filesystem vnodeop, specop, fifoop and vnodeopv_* arrays const
2001-01-22 15:17:35 +03:00
const struct vnodeopv_entry_desc lfs_vnodeop_entries[] = {
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_default_desc, vn_default_error },
{ &vop_lookup_desc, ufs_lookup }, /* lookup */
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
{ &vop_create_desc, lfs_create }, /* create */
{ &vop_whiteout_desc, lfs_whiteout }, /* whiteout */
{ &vop_mknod_desc, lfs_mknod }, /* mknod */
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_open_desc, ufs_open }, /* open */
{ &vop_close_desc, lfs_close }, /* close */
{ &vop_access_desc, ufs_access }, /* access */
{ &vop_getattr_desc, lfs_getattr }, /* getattr */
{ &vop_setattr_desc, ufs_setattr }, /* setattr */
{ &vop_read_desc, lfs_read }, /* read */
{ &vop_write_desc, lfs_write }, /* write */
Turn lease_check() into a vnode op, per CSRG.
1994-12-13 23:14:30 +03:00
{ &vop_lease_desc, ufs_lease_check }, /* lease */
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_ioctl_desc, ufs_ioctl }, /* ioctl */
Add support for fcntl(2) to generate VOP_FCNTL calls. Any fcntl call with F_FSCTL set and F_SETFL calls generate calls to a new fileop fo_fcntl. Add genfs_fcntl() and soo_fcntl() which return 0 for F_SETFL and EOPNOTSUPP otherwise. Have all leaf filesystems use genfs_fcntl(). Reviewed by: thorpej Tested by: wrstuden
1999-08-04 00:19:16 +04:00
{ &vop_fcntl_desc, ufs_fcntl }, /* fcntl */
Implement poll(2).
1996-09-07 16:40:22 +04:00
{ &vop_poll_desc, ufs_poll }, /* poll */
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
{ &vop_revoke_desc, ufs_revoke }, /* revoke */
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_mmap_desc, ufs_mmap }, /* mmap */
{ &vop_fsync_desc, lfs_fsync }, /* fsync */
{ &vop_seek_desc, ufs_seek }, /* seek */
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
{ &vop_remove_desc, lfs_remove }, /* remove */
{ &vop_link_desc, lfs_link }, /* link */
{ &vop_rename_desc, lfs_rename }, /* rename */
{ &vop_mkdir_desc, lfs_mkdir }, /* mkdir */
{ &vop_rmdir_desc, lfs_rmdir }, /* rmdir */
{ &vop_symlink_desc, lfs_symlink }, /* symlink */
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_readdir_desc, ufs_readdir }, /* readdir */
{ &vop_readlink_desc, ufs_readlink }, /* readlink */
{ &vop_abortop_desc, ufs_abortop }, /* abortop */
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
{ &vop_inactive_desc, lfs_inactive }, /* inactive */
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_reclaim_desc, lfs_reclaim }, /* reclaim */
{ &vop_lock_desc, ufs_lock }, /* lock */
{ &vop_unlock_desc, ufs_unlock }, /* unlock */
{ &vop_bmap_desc, ufs_bmap }, /* bmap */
{ &vop_strategy_desc, ufs_strategy }, /* strategy */
{ &vop_print_desc, ufs_print }, /* print */
{ &vop_islocked_desc, ufs_islocked }, /* islocked */
{ &vop_pathconf_desc, ufs_pathconf }, /* pathconf */
{ &vop_advlock_desc, ufs_advlock }, /* advlock */
{ &vop_blkatoff_desc, lfs_blkatoff }, /* blkatoff */
{ &vop_valloc_desc, lfs_valloc }, /* valloc */
Add Kirk McKusick's soft updates code to the trunk. Not enabled by default, as the copyright on the main file (ffs_softdep.c) is such that is has been put into gnusrc. options SOFTDEP will pull this in. This code also contains the trickle syncer. Bump version number to 1.4O
1999-11-15 21:49:07 +03:00
{ &vop_balloc_desc, lfs_balloc }, /* balloc */
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_vfree_desc, lfs_vfree }, /* vfree */
{ &vop_truncate_desc, lfs_truncate }, /* truncate */
{ &vop_update_desc, lfs_update }, /* update */
{ &vop_bwrite_desc, lfs_bwrite }, /* bwrite */
lfs prototypes
1996-02-10 01:28:45 +03:00
{ (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL }
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
};
make filesystem vnodeop, specop, fifoop and vnodeopv_* arrays const
2001-01-22 15:17:35 +03:00
const struct vnodeopv_desc lfs_vnodeop_opv_desc =
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &lfs_vnodeop_p, lfs_vnodeop_entries };
lfs prototypes
1996-02-10 01:28:45 +03:00
int (**lfs_specop_p) __P((void *));
make filesystem vnodeop, specop, fifoop and vnodeopv_* arrays const
2001-01-22 15:17:35 +03:00
const struct vnodeopv_entry_desc lfs_specop_entries[] = {
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_default_desc, vn_default_error },
{ &vop_lookup_desc, spec_lookup }, /* lookup */
{ &vop_create_desc, spec_create }, /* create */
{ &vop_mknod_desc, spec_mknod }, /* mknod */
{ &vop_open_desc, spec_open }, /* open */
{ &vop_close_desc, ufsspec_close }, /* close */
{ &vop_access_desc, ufs_access }, /* access */
{ &vop_getattr_desc, lfs_getattr }, /* getattr */
{ &vop_setattr_desc, ufs_setattr }, /* setattr */
{ &vop_read_desc, ufsspec_read }, /* read */
{ &vop_write_desc, ufsspec_write }, /* write */
Turn lease_check() into a vnode op, per CSRG.
1994-12-13 23:14:30 +03:00
{ &vop_lease_desc, spec_lease_check }, /* lease */
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_ioctl_desc, spec_ioctl }, /* ioctl */
Add support for fcntl(2) to generate VOP_FCNTL calls. Any fcntl call with F_FSCTL set and F_SETFL calls generate calls to a new fileop fo_fcntl. Add genfs_fcntl() and soo_fcntl() which return 0 for F_SETFL and EOPNOTSUPP otherwise. Have all leaf filesystems use genfs_fcntl(). Reviewed by: thorpej Tested by: wrstuden
1999-08-04 00:19:16 +04:00
{ &vop_fcntl_desc, ufs_fcntl }, /* fcntl */
Implement poll(2).
1996-09-07 16:40:22 +04:00
{ &vop_poll_desc, spec_poll }, /* poll */
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
{ &vop_revoke_desc, spec_revoke }, /* revoke */
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_mmap_desc, spec_mmap }, /* mmap */
{ &vop_fsync_desc, spec_fsync }, /* fsync */
{ &vop_seek_desc, spec_seek }, /* seek */
{ &vop_remove_desc, spec_remove }, /* remove */
{ &vop_link_desc, spec_link }, /* link */
{ &vop_rename_desc, spec_rename }, /* rename */
{ &vop_mkdir_desc, spec_mkdir }, /* mkdir */
{ &vop_rmdir_desc, spec_rmdir }, /* rmdir */
{ &vop_symlink_desc, spec_symlink }, /* symlink */
{ &vop_readdir_desc, spec_readdir }, /* readdir */
{ &vop_readlink_desc, spec_readlink }, /* readlink */
{ &vop_abortop_desc, spec_abortop }, /* abortop */
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
{ &vop_inactive_desc, lfs_inactive }, /* inactive */
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_reclaim_desc, lfs_reclaim }, /* reclaim */
{ &vop_lock_desc, ufs_lock }, /* lock */
{ &vop_unlock_desc, ufs_unlock }, /* unlock */
{ &vop_bmap_desc, spec_bmap }, /* bmap */
{ &vop_strategy_desc, spec_strategy }, /* strategy */
{ &vop_print_desc, ufs_print }, /* print */
{ &vop_islocked_desc, ufs_islocked }, /* islocked */
{ &vop_pathconf_desc, spec_pathconf }, /* pathconf */
{ &vop_advlock_desc, spec_advlock }, /* advlock */
{ &vop_blkatoff_desc, spec_blkatoff }, /* blkatoff */
{ &vop_valloc_desc, spec_valloc }, /* valloc */
{ &vop_vfree_desc, lfs_vfree }, /* vfree */
{ &vop_truncate_desc, spec_truncate }, /* truncate */
{ &vop_update_desc, lfs_update }, /* update */
Make changes that will allow an LFS filesystem to be used as the root filesystem. In particular, - Fix mknod deadlock, described in PR 8172. - Enable lfs_mountroot. - Make lfs_writevnodes treat filesystems mounted on lfs device nodes properly, by flushing that device rather than trying to add blocks to the device inode. This, in combination with lfs boot blocks, will allow operation of an all-lfs system.
1999-09-04 02:48:51 +04:00
{ &vop_bwrite_desc, vn_bwrite }, /* bwrite */
lfs prototypes
1996-02-10 01:28:45 +03:00
{ (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL }
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
};
make filesystem vnodeop, specop, fifoop and vnodeopv_* arrays const
2001-01-22 15:17:35 +03:00
const struct vnodeopv_desc lfs_specop_opv_desc =
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &lfs_specop_p, lfs_specop_entries };
lfs prototypes
1996-02-10 01:28:45 +03:00
int (**lfs_fifoop_p) __P((void *));
make filesystem vnodeop, specop, fifoop and vnodeopv_* arrays const
2001-01-22 15:17:35 +03:00
const struct vnodeopv_entry_desc lfs_fifoop_entries[] = {
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_default_desc, vn_default_error },
{ &vop_lookup_desc, fifo_lookup }, /* lookup */
{ &vop_create_desc, fifo_create }, /* create */
{ &vop_mknod_desc, fifo_mknod }, /* mknod */
{ &vop_open_desc, fifo_open }, /* open */
{ &vop_close_desc, ufsfifo_close }, /* close */
{ &vop_access_desc, ufs_access }, /* access */
{ &vop_getattr_desc, lfs_getattr }, /* getattr */
{ &vop_setattr_desc, ufs_setattr }, /* setattr */
{ &vop_read_desc, ufsfifo_read }, /* read */
{ &vop_write_desc, ufsfifo_write }, /* write */
Turn lease_check() into a vnode op, per CSRG.
1994-12-13 23:14:30 +03:00
{ &vop_lease_desc, fifo_lease_check }, /* lease */
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_ioctl_desc, fifo_ioctl }, /* ioctl */
Add support for fcntl(2) to generate VOP_FCNTL calls. Any fcntl call with F_FSCTL set and F_SETFL calls generate calls to a new fileop fo_fcntl. Add genfs_fcntl() and soo_fcntl() which return 0 for F_SETFL and EOPNOTSUPP otherwise. Have all leaf filesystems use genfs_fcntl(). Reviewed by: thorpej Tested by: wrstuden
1999-08-04 00:19:16 +04:00
{ &vop_fcntl_desc, ufs_fcntl }, /* fcntl */
Implement poll(2).
1996-09-07 16:40:22 +04:00
{ &vop_poll_desc, fifo_poll }, /* poll */
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
{ &vop_revoke_desc, fifo_revoke }, /* revoke */
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_mmap_desc, fifo_mmap }, /* mmap */
{ &vop_fsync_desc, fifo_fsync }, /* fsync */
{ &vop_seek_desc, fifo_seek }, /* seek */
{ &vop_remove_desc, fifo_remove }, /* remove */
{ &vop_link_desc, fifo_link }, /* link */
{ &vop_rename_desc, fifo_rename }, /* rename */
{ &vop_mkdir_desc, fifo_mkdir }, /* mkdir */
{ &vop_rmdir_desc, fifo_rmdir }, /* rmdir */
{ &vop_symlink_desc, fifo_symlink }, /* symlink */
{ &vop_readdir_desc, fifo_readdir }, /* readdir */
{ &vop_readlink_desc, fifo_readlink }, /* readlink */
{ &vop_abortop_desc, fifo_abortop }, /* abortop */
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
{ &vop_inactive_desc, lfs_inactive }, /* inactive */
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &vop_reclaim_desc, lfs_reclaim }, /* reclaim */
{ &vop_lock_desc, ufs_lock }, /* lock */
{ &vop_unlock_desc, ufs_unlock }, /* unlock */
{ &vop_bmap_desc, fifo_bmap }, /* bmap */
{ &vop_strategy_desc, fifo_strategy }, /* strategy */
{ &vop_print_desc, ufs_print }, /* print */
{ &vop_islocked_desc, ufs_islocked }, /* islocked */
{ &vop_pathconf_desc, fifo_pathconf }, /* pathconf */
{ &vop_advlock_desc, fifo_advlock }, /* advlock */
{ &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */
{ &vop_valloc_desc, fifo_valloc }, /* valloc */
{ &vop_vfree_desc, lfs_vfree }, /* vfree */
{ &vop_truncate_desc, fifo_truncate }, /* truncate */
{ &vop_update_desc, lfs_update }, /* update */
{ &vop_bwrite_desc, lfs_bwrite }, /* bwrite */
lfs prototypes
1996-02-10 01:28:45 +03:00
{ (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL }
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
};
make filesystem vnodeop, specop, fifoop and vnodeopv_* arrays const
2001-01-22 15:17:35 +03:00
const struct vnodeopv_desc lfs_fifoop_opv_desc =
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
{ &lfs_fifoop_p, lfs_fifoop_entries };
Clean up accounting of lfs_uinodes (dirty but unwritten inodes). Make lfs_uinodes a signed quantity for debugging purposes, and set it to zero as fs mount time. Enclose setting/clearing of the dirty flags (IN_MODIFIED, IN_ACCESSED, IN_CLEANING) in macros, and use those macros everywhere. Make LFS_ITIMES use these macros; updated the ITIMES macro in inode.h to know about this. Make ufs_getattr use ITIMES instead of FFS_ITIMES.
2000-07-06 02:25:43 +04:00
/*
* A function version of LFS_ITIMES, for the UFS functions which call ITIMES
*/
void
lfs_itimes(ip, acc, mod, cre)
struct inode *ip;
struct timespec *acc, *mod, *cre;
{
LFS_ITIMES(ip, acc, mod, cre);
}
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
#define LFS_READWRITE
#include <ufs/ufs/ufs_readwrite.c>
#undef LFS_READWRITE
/*
* Synch an open file.
*/
/* ARGSUSED */
lfs prototypes
1996-02-10 01:28:45 +03:00
int
lfs_fsync(v)
void *v;
{
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
struct vop_fsync_args /* {
struct vnode *a_vp;
struct ucred *a_cred;
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
int a_flags;
Make buildable again. The previous commit was a backout of rev. 1.45, which must be an accident.
2000-11-18 05:11:23 +03:00
off_t offlo;
off_t offhi;
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
struct proc *a_p;
lfs prototypes
1996-02-10 01:28:45 +03:00
} */ *ap = v;
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
Do not needlessly dirty segment table blocks during lfs_segwrite, preventing needless disk activity when the filesystem is idle. (PR #10979.)
2000-11-12 10:58:36 +03:00
/* Ignore the trickle syncer */
if (ap->a_flags & FSYNC_LAZY)
return 0;
Pass null pointers to VOP_UPDATE rather than having all the callers fetch the current time themselves.
1999-03-06 00:09:48 +03:00
return (VOP_UPDATE(ap->a_vp, NULL, NULL,
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
(ap->a_flags & FSYNC_WAIT) != 0 ? UPDATE_WAIT : 0));
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
}
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
/*
* Take IN_ADIROP off, then call ufs_inactive.
*/
int
lfs_inactive(v)
void *v;
{
struct vop_inactive_args /* {
struct vnode *a_vp;
struct proc *a_p;
} */ *ap = v;
struct inode *ip = VTOI(ap->a_vp);
if (ip->i_flag & IN_ADIROP)
--ip->i_lfs->lfs_nadirop;
ip->i_flag &= ~IN_ADIROP;
return ufs_inactive(v);
}
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
/*
* These macros are used to bracket UFS directory ops, so that we can
* identify all the pages touched during directory ops which need to
* be ordered and flushed atomically, so that they may be recovered.
*/
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
/*
* XXX KS - Because we have to mark nodes VDIROP in order to prevent
* the cache from reclaiming them while a dirop is in progress, we must
* also manage the number of nodes so marked (otherwise we can run out).
* We do this by setting lfs_dirvcount to the number of marked vnodes; it
* is decremented during segment write, when VDIROP is taken off.
*/
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
#define SET_DIROP(vp) lfs_set_dirop(vp)
static int lfs_set_dirop __P((struct vnode *));
Address ufs_hashlock/ufs_ihashins protocol bug, discovered while doing a post-mortem of a production machine. Also, take the active dirop count off of the fs and make it global (since it is measuring a global resource) and tie the threshold value LFS_MAXDIROP to desiredvnodes.
1999-11-06 23:33:05 +03:00
extern int lfs_dirvcount;
Since dirop vnodes can't be flushed, they hold a reference until their dirop is completely written to disk. This means that ordinary calls to ufs vnops which would ordinarily call VOP_INACTIVE through vrele/vput, don't. This patch detects that condition after such vnops have been run, and calls VOP_INACTIVE if it would ordinarily have been called by the ufs call.
1999-03-26 01:33:03 +03:00
In lfs_truncate, don't overcount the real blocks removed from the inode, when deallocating a fragment that has not made it to disk yet. Also, during dirops, give the directory vnode an extra reference in SET_DIROP, to ensure its continued existence during SET_ENDOP, preventing a possible NULL-dereference there. These two changes should close PR #11064.
2000-10-15 03:22:14 +04:00
static int
lfs_set_dirop(vp)
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
struct vnode *vp;
Since dirop vnodes can't be flushed, they hold a reference until their dirop is completely written to disk. This means that ordinary calls to ufs vnops which would ordinarily call VOP_INACTIVE through vrele/vput, don't. This patch detects that condition after such vnops have been run, and calls VOP_INACTIVE if it would ordinarily have been called by the ufs call.
1999-03-26 01:33:03 +03:00
{
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
struct lfs *fs;
Since dirop vnodes can't be flushed, they hold a reference until their dirop is completely written to disk. This means that ordinary calls to ufs vnops which would ordinarily call VOP_INACTIVE through vrele/vput, don't. This patch detects that condition after such vnops have been run, and calls VOP_INACTIVE if it would ordinarily have been called by the ufs call.
1999-03-26 01:33:03 +03:00
int error;
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
fs = VTOI(vp)->i_lfs;
Various bug-fixes to LFS, to wit: Kernel: * Add runtime quantity lfs_ravail, the number of disk-blocks reserved for writing. Writes to the filesystem first reserve a maximum amount of blocks before their write is allowed to proceed; after the blocks are allocated the reserved total is reduced by a corresponding amount. If the lfs_reserve function cannot immediately reserve the requested number of blocks, the inode is unlocked, and the thread sleeps until the cleaner has made enough space available for the blocks to be reserved. In this way large files can be written to the filesystem (or, smaller files can be written to a nearly-full but thoroughly clean filesystem) and the cleaner can still function properly. * Remove explicit switching on dlfs_minfreeseg from the kernel code; it is now merely a fs-creation parameter used to compute dlfs_avail and dlfs_bfree (and used by fsck_lfs(8) to check their accuracy). Its former role is better assumed by a properly computed dlfs_avail. * Bounds-check inode numbers submitted through lfs_bmapv and lfs_markv. This prevents a panic, but, if the cleaner is feeding the filesystem the wrong data, you are still in a world of hurt. * Cleanup: remove explicit references of DEV_BSIZE in favor of btodb()/dbtob(). lfs_cleanerd: * Make -n mean "send N segments' blocks through a single call to lfs_markv". Previously it had meant "clean N segments though N calls to lfs_markv, before looking again to see if more need to be cleaned". The new behavior gives better packing of direct data on disk with as little metadata as possible, largely alleviating the problem that the cleaner can consume more disk through inefficient use of metadata than it frees by moving dirty data away from clean "holes" to produce entirely clean segments. * Make -b mean "read as many segments as necessary to write N segments of dirty data back to disk", rather than its former meaning of "read as many segments as necessary to free N segments worth of space". The new meaning, combined with the new -n behavior described above, further aids in cleaning storage efficiency as entire segments can be written at once, using as few blocks as possible for segment summaries and inode blocks. * Make the cleaner take note of segments which could not be cleaned due to error, and not attempt to clean them until they are entirely free of dirty blocks. This prevents the case in which a cleanerd running with -n 1 and without -b (formerly the default) would spin trying repeatedly to clean a corrupt segment, while the remaining space filled and deadlocked the filesystem. * Update the lfs_cleanerd manual page to describe all the options, including the changes mentioned here (in particular, the -b and -n flags were previously undocumented). fsck_lfs: * Check, and optionally fix, lfs_avail (to an exact figure) and lfs_bfree (within a margin of error) in pass 5. newfs_lfs: * Reduce the default dlfs_minfreeseg to 1/20 of the total segments. * Add a warning if the sgs disklabel field is 16 (the default for FFS' cpg, but not usually desirable for LFS' sgs: 5--8 is a better range). * Change the calculation of lfs_avail and lfs_bfree, corresponding to the kernel changes mentioned above. mount_lfs: * Add -N and -b options to pass corresponding -n and -b options to lfs_cleanerd. * Default to calling lfs_cleanerd with "-b -n 4". [All of these changes were largely tested in the 1.5 branch, with the idea that they (along with previous un-pulled-up work) could be applied to the branch while it was still in ALPHA2; however my test system has experienced corruption on another filesystem (/dev/console has gone missing :^), and, while I believe this unrelated to the LFS changes, I cannot with good conscience request that the changes be pulled up.]
2000-09-09 08:49:54 +04:00
/*
* We might need one directory block plus supporting indirect blocks,
* plus an inode block and ifile page for the new vnode.
*/
if ((error = lfs_reserve(fs, vp, fsbtodb(fs, NIADDR + 3))) != 0)
return (error);
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if (fs->lfs_dirops == 0)
lfs_check(vp, LFS_UNUSED_LBN, 0);
while (fs->lfs_writer || lfs_dirvcount > LFS_MAXDIROP) {
Since dirop vnodes can't be flushed, they hold a reference until their dirop is completely written to disk. This means that ordinary calls to ufs vnops which would ordinarily call VOP_INACTIVE through vrele/vput, don't. This patch detects that condition after such vnops have been run, and calls VOP_INACTIVE if it would ordinarily have been called by the ufs call.
1999-03-26 01:33:03 +03:00
if(fs->lfs_writer)
tsleep(&fs->lfs_dirops, PRIBIO + 1, "lfs_dirop", 0);
Handle the case of a vnode flush while dirops are active correctly in lfs_segwrite. Also, make sure a flush is called in SET_DIROP before sleeping on its results. Addresses PR #8863.
1999-12-04 00:47:44 +03:00
if(lfs_dirvcount > LFS_MAXDIROP && fs->lfs_dirops==0) {
++fs->lfs_writer;
lfs_flush(fs, 0);
if(--fs->lfs_writer==0)
wakeup(&fs->lfs_dirops);
}
Address ufs_hashlock/ufs_ihashins protocol bug, discovered while doing a post-mortem of a production machine. Also, take the active dirop count off of the fs and make it global (since it is measuring a global resource) and tie the threshold value LFS_MAXDIROP to desiredvnodes.
1999-11-06 23:33:05 +03:00
if(lfs_dirvcount > LFS_MAXDIROP) {
Since dirop vnodes can't be flushed, they hold a reference until their dirop is completely written to disk. This means that ordinary calls to ufs vnops which would ordinarily call VOP_INACTIVE through vrele/vput, don't. This patch detects that condition after such vnops have been run, and calls VOP_INACTIVE if it would ordinarily have been called by the ufs call.
1999-03-26 01:33:03 +03:00
#ifdef DEBUG_LFS
Various bug-fixes to LFS, to wit: Kernel: * Add runtime quantity lfs_ravail, the number of disk-blocks reserved for writing. Writes to the filesystem first reserve a maximum amount of blocks before their write is allowed to proceed; after the blocks are allocated the reserved total is reduced by a corresponding amount. If the lfs_reserve function cannot immediately reserve the requested number of blocks, the inode is unlocked, and the thread sleeps until the cleaner has made enough space available for the blocks to be reserved. In this way large files can be written to the filesystem (or, smaller files can be written to a nearly-full but thoroughly clean filesystem) and the cleaner can still function properly. * Remove explicit switching on dlfs_minfreeseg from the kernel code; it is now merely a fs-creation parameter used to compute dlfs_avail and dlfs_bfree (and used by fsck_lfs(8) to check their accuracy). Its former role is better assumed by a properly computed dlfs_avail. * Bounds-check inode numbers submitted through lfs_bmapv and lfs_markv. This prevents a panic, but, if the cleaner is feeding the filesystem the wrong data, you are still in a world of hurt. * Cleanup: remove explicit references of DEV_BSIZE in favor of btodb()/dbtob(). lfs_cleanerd: * Make -n mean "send N segments' blocks through a single call to lfs_markv". Previously it had meant "clean N segments though N calls to lfs_markv, before looking again to see if more need to be cleaned". The new behavior gives better packing of direct data on disk with as little metadata as possible, largely alleviating the problem that the cleaner can consume more disk through inefficient use of metadata than it frees by moving dirty data away from clean "holes" to produce entirely clean segments. * Make -b mean "read as many segments as necessary to write N segments of dirty data back to disk", rather than its former meaning of "read as many segments as necessary to free N segments worth of space". The new meaning, combined with the new -n behavior described above, further aids in cleaning storage efficiency as entire segments can be written at once, using as few blocks as possible for segment summaries and inode blocks. * Make the cleaner take note of segments which could not be cleaned due to error, and not attempt to clean them until they are entirely free of dirty blocks. This prevents the case in which a cleanerd running with -n 1 and without -b (formerly the default) would spin trying repeatedly to clean a corrupt segment, while the remaining space filled and deadlocked the filesystem. * Update the lfs_cleanerd manual page to describe all the options, including the changes mentioned here (in particular, the -b and -n flags were previously undocumented). fsck_lfs: * Check, and optionally fix, lfs_avail (to an exact figure) and lfs_bfree (within a margin of error) in pass 5. newfs_lfs: * Reduce the default dlfs_minfreeseg to 1/20 of the total segments. * Add a warning if the sgs disklabel field is 16 (the default for FFS' cpg, but not usually desirable for LFS' sgs: 5--8 is a better range). * Change the calculation of lfs_avail and lfs_bfree, corresponding to the kernel changes mentioned above. mount_lfs: * Add -N and -b options to pass corresponding -n and -b options to lfs_cleanerd. * Default to calling lfs_cleanerd with "-b -n 4". [All of these changes were largely tested in the 1.5 branch, with the idea that they (along with previous un-pulled-up work) could be applied to the branch while it was still in ALPHA2; however my test system has experienced corruption on another filesystem (/dev/console has gone missing :^), and, while I believe this unrelated to the LFS changes, I cannot with good conscience request that the changes be pulled up.]
2000-09-09 08:49:54 +04:00
printf("lfs_set_dirop: sleeping with dirops=%d, "
"dirvcount=%d\n", fs->lfs_dirops,
lfs_dirvcount);
Since dirop vnodes can't be flushed, they hold a reference until their dirop is completely written to disk. This means that ordinary calls to ufs vnops which would ordinarily call VOP_INACTIVE through vrele/vput, don't. This patch detects that condition after such vnops have been run, and calls VOP_INACTIVE if it would ordinarily have been called by the ufs call.
1999-03-26 01:33:03 +03:00
#endif
Various bug-fixes to LFS, to wit: Kernel: * Add runtime quantity lfs_ravail, the number of disk-blocks reserved for writing. Writes to the filesystem first reserve a maximum amount of blocks before their write is allowed to proceed; after the blocks are allocated the reserved total is reduced by a corresponding amount. If the lfs_reserve function cannot immediately reserve the requested number of blocks, the inode is unlocked, and the thread sleeps until the cleaner has made enough space available for the blocks to be reserved. In this way large files can be written to the filesystem (or, smaller files can be written to a nearly-full but thoroughly clean filesystem) and the cleaner can still function properly. * Remove explicit switching on dlfs_minfreeseg from the kernel code; it is now merely a fs-creation parameter used to compute dlfs_avail and dlfs_bfree (and used by fsck_lfs(8) to check their accuracy). Its former role is better assumed by a properly computed dlfs_avail. * Bounds-check inode numbers submitted through lfs_bmapv and lfs_markv. This prevents a panic, but, if the cleaner is feeding the filesystem the wrong data, you are still in a world of hurt. * Cleanup: remove explicit references of DEV_BSIZE in favor of btodb()/dbtob(). lfs_cleanerd: * Make -n mean "send N segments' blocks through a single call to lfs_markv". Previously it had meant "clean N segments though N calls to lfs_markv, before looking again to see if more need to be cleaned". The new behavior gives better packing of direct data on disk with as little metadata as possible, largely alleviating the problem that the cleaner can consume more disk through inefficient use of metadata than it frees by moving dirty data away from clean "holes" to produce entirely clean segments. * Make -b mean "read as many segments as necessary to write N segments of dirty data back to disk", rather than its former meaning of "read as many segments as necessary to free N segments worth of space". The new meaning, combined with the new -n behavior described above, further aids in cleaning storage efficiency as entire segments can be written at once, using as few blocks as possible for segment summaries and inode blocks. * Make the cleaner take note of segments which could not be cleaned due to error, and not attempt to clean them until they are entirely free of dirty blocks. This prevents the case in which a cleanerd running with -n 1 and without -b (formerly the default) would spin trying repeatedly to clean a corrupt segment, while the remaining space filled and deadlocked the filesystem. * Update the lfs_cleanerd manual page to describe all the options, including the changes mentioned here (in particular, the -b and -n flags were previously undocumented). fsck_lfs: * Check, and optionally fix, lfs_avail (to an exact figure) and lfs_bfree (within a margin of error) in pass 5. newfs_lfs: * Reduce the default dlfs_minfreeseg to 1/20 of the total segments. * Add a warning if the sgs disklabel field is 16 (the default for FFS' cpg, but not usually desirable for LFS' sgs: 5--8 is a better range). * Change the calculation of lfs_avail and lfs_bfree, corresponding to the kernel changes mentioned above. mount_lfs: * Add -N and -b options to pass corresponding -n and -b options to lfs_cleanerd. * Default to calling lfs_cleanerd with "-b -n 4". [All of these changes were largely tested in the 1.5 branch, with the idea that they (along with previous un-pulled-up work) could be applied to the branch while it was still in ALPHA2; however my test system has experienced corruption on another filesystem (/dev/console has gone missing :^), and, while I believe this unrelated to the LFS changes, I cannot with good conscience request that the changes be pulled up.]
2000-09-09 08:49:54 +04:00
if((error = tsleep(&lfs_dirvcount, PCATCH|PUSER,
"lfs_maxdirop", 0)) !=0) {
lfs_reserve(fs, vp, -fsbtodb(fs, NIADDR + 3));
Since dirop vnodes can't be flushed, they hold a reference until their dirop is completely written to disk. This means that ordinary calls to ufs vnops which would ordinarily call VOP_INACTIVE through vrele/vput, don't. This patch detects that condition after such vnops have been run, and calls VOP_INACTIVE if it would ordinarily have been called by the ufs call.
1999-03-26 01:33:03 +03:00
return error;
Various bug-fixes to LFS, to wit: Kernel: * Add runtime quantity lfs_ravail, the number of disk-blocks reserved for writing. Writes to the filesystem first reserve a maximum amount of blocks before their write is allowed to proceed; after the blocks are allocated the reserved total is reduced by a corresponding amount. If the lfs_reserve function cannot immediately reserve the requested number of blocks, the inode is unlocked, and the thread sleeps until the cleaner has made enough space available for the blocks to be reserved. In this way large files can be written to the filesystem (or, smaller files can be written to a nearly-full but thoroughly clean filesystem) and the cleaner can still function properly. * Remove explicit switching on dlfs_minfreeseg from the kernel code; it is now merely a fs-creation parameter used to compute dlfs_avail and dlfs_bfree (and used by fsck_lfs(8) to check their accuracy). Its former role is better assumed by a properly computed dlfs_avail. * Bounds-check inode numbers submitted through lfs_bmapv and lfs_markv. This prevents a panic, but, if the cleaner is feeding the filesystem the wrong data, you are still in a world of hurt. * Cleanup: remove explicit references of DEV_BSIZE in favor of btodb()/dbtob(). lfs_cleanerd: * Make -n mean "send N segments' blocks through a single call to lfs_markv". Previously it had meant "clean N segments though N calls to lfs_markv, before looking again to see if more need to be cleaned". The new behavior gives better packing of direct data on disk with as little metadata as possible, largely alleviating the problem that the cleaner can consume more disk through inefficient use of metadata than it frees by moving dirty data away from clean "holes" to produce entirely clean segments. * Make -b mean "read as many segments as necessary to write N segments of dirty data back to disk", rather than its former meaning of "read as many segments as necessary to free N segments worth of space". The new meaning, combined with the new -n behavior described above, further aids in cleaning storage efficiency as entire segments can be written at once, using as few blocks as possible for segment summaries and inode blocks. * Make the cleaner take note of segments which could not be cleaned due to error, and not attempt to clean them until they are entirely free of dirty blocks. This prevents the case in which a cleanerd running with -n 1 and without -b (formerly the default) would spin trying repeatedly to clean a corrupt segment, while the remaining space filled and deadlocked the filesystem. * Update the lfs_cleanerd manual page to describe all the options, including the changes mentioned here (in particular, the -b and -n flags were previously undocumented). fsck_lfs: * Check, and optionally fix, lfs_avail (to an exact figure) and lfs_bfree (within a margin of error) in pass 5. newfs_lfs: * Reduce the default dlfs_minfreeseg to 1/20 of the total segments. * Add a warning if the sgs disklabel field is 16 (the default for FFS' cpg, but not usually desirable for LFS' sgs: 5--8 is a better range). * Change the calculation of lfs_avail and lfs_bfree, corresponding to the kernel changes mentioned above. mount_lfs: * Add -N and -b options to pass corresponding -n and -b options to lfs_cleanerd. * Default to calling lfs_cleanerd with "-b -n 4". [All of these changes were largely tested in the 1.5 branch, with the idea that they (along with previous un-pulled-up work) could be applied to the branch while it was still in ALPHA2; however my test system has experienced corruption on another filesystem (/dev/console has gone missing :^), and, while I believe this unrelated to the LFS changes, I cannot with good conscience request that the changes be pulled up.]
2000-09-09 08:49:54 +04:00
}
Since dirop vnodes can't be flushed, they hold a reference until their dirop is completely written to disk. This means that ordinary calls to ufs vnops which would ordinarily call VOP_INACTIVE through vrele/vput, don't. This patch detects that condition after such vnops have been run, and calls VOP_INACTIVE if it would ordinarily have been called by the ufs call.
1999-03-26 01:33:03 +03:00
}
}
++fs->lfs_dirops;
fs->lfs_doifile = 1;
In lfs_truncate, don't overcount the real blocks removed from the inode, when deallocating a fragment that has not made it to disk yet. Also, during dirops, give the directory vnode an extra reference in SET_DIROP, to ensure its continued existence during SET_ENDOP, preventing a possible NULL-dereference there. These two changes should close PR #11064.
2000-10-15 03:22:14 +04:00
/* Hold a reference so SET_ENDOP will be happy */
lfs_vref(vp);
Since dirop vnodes can't be flushed, they hold a reference until their dirop is completely written to disk. This means that ordinary calls to ufs vnops which would ordinarily call VOP_INACTIVE through vrele/vput, don't. This patch detects that condition after such vnops have been run, and calls VOP_INACTIVE if it would ordinarily have been called by the ufs call.
1999-03-26 01:33:03 +03:00
return 0;
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
}
Disallow threshold-initiated cache flush when dirops are active. Also, make SET_ENDOP use lfs_check instead of inlining most of it.
1999-04-12 04:36:47 +04:00
#define SET_ENDOP(fs,vp,str) { \
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
--(fs)->lfs_dirops; \
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
if (!(fs)->lfs_dirops) { \
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if ((fs)->lfs_nadirop) { \
panic("SET_ENDOP: %s: no dirops but nadirop=%d\n", \
(str), (fs)->lfs_nadirop); \
} \
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
wakeup(&(fs)->lfs_writer); \
Disallow threshold-initiated cache flush when dirops are active. Also, make SET_ENDOP use lfs_check instead of inlining most of it.
1999-04-12 04:36:47 +04:00
lfs_check((vp),LFS_UNUSED_LBN,0); \
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
} \
Various bug-fixes to LFS, to wit: Kernel: * Add runtime quantity lfs_ravail, the number of disk-blocks reserved for writing. Writes to the filesystem first reserve a maximum amount of blocks before their write is allowed to proceed; after the blocks are allocated the reserved total is reduced by a corresponding amount. If the lfs_reserve function cannot immediately reserve the requested number of blocks, the inode is unlocked, and the thread sleeps until the cleaner has made enough space available for the blocks to be reserved. In this way large files can be written to the filesystem (or, smaller files can be written to a nearly-full but thoroughly clean filesystem) and the cleaner can still function properly. * Remove explicit switching on dlfs_minfreeseg from the kernel code; it is now merely a fs-creation parameter used to compute dlfs_avail and dlfs_bfree (and used by fsck_lfs(8) to check their accuracy). Its former role is better assumed by a properly computed dlfs_avail. * Bounds-check inode numbers submitted through lfs_bmapv and lfs_markv. This prevents a panic, but, if the cleaner is feeding the filesystem the wrong data, you are still in a world of hurt. * Cleanup: remove explicit references of DEV_BSIZE in favor of btodb()/dbtob(). lfs_cleanerd: * Make -n mean "send N segments' blocks through a single call to lfs_markv". Previously it had meant "clean N segments though N calls to lfs_markv, before looking again to see if more need to be cleaned". The new behavior gives better packing of direct data on disk with as little metadata as possible, largely alleviating the problem that the cleaner can consume more disk through inefficient use of metadata than it frees by moving dirty data away from clean "holes" to produce entirely clean segments. * Make -b mean "read as many segments as necessary to write N segments of dirty data back to disk", rather than its former meaning of "read as many segments as necessary to free N segments worth of space". The new meaning, combined with the new -n behavior described above, further aids in cleaning storage efficiency as entire segments can be written at once, using as few blocks as possible for segment summaries and inode blocks. * Make the cleaner take note of segments which could not be cleaned due to error, and not attempt to clean them until they are entirely free of dirty blocks. This prevents the case in which a cleanerd running with -n 1 and without -b (formerly the default) would spin trying repeatedly to clean a corrupt segment, while the remaining space filled and deadlocked the filesystem. * Update the lfs_cleanerd manual page to describe all the options, including the changes mentioned here (in particular, the -b and -n flags were previously undocumented). fsck_lfs: * Check, and optionally fix, lfs_avail (to an exact figure) and lfs_bfree (within a margin of error) in pass 5. newfs_lfs: * Reduce the default dlfs_minfreeseg to 1/20 of the total segments. * Add a warning if the sgs disklabel field is 16 (the default for FFS' cpg, but not usually desirable for LFS' sgs: 5--8 is a better range). * Change the calculation of lfs_avail and lfs_bfree, corresponding to the kernel changes mentioned above. mount_lfs: * Add -N and -b options to pass corresponding -n and -b options to lfs_cleanerd. * Default to calling lfs_cleanerd with "-b -n 4". [All of these changes were largely tested in the 1.5 branch, with the idea that they (along with previous un-pulled-up work) could be applied to the branch while it was still in ALPHA2; however my test system has experienced corruption on another filesystem (/dev/console has gone missing :^), and, while I believe this unrelated to the LFS changes, I cannot with good conscience request that the changes be pulled up.]
2000-09-09 08:49:54 +04:00
lfs_reserve(fs, vp, -fsbtodb(fs, NIADDR + 3)); /* XXX */ \
In lfs_truncate, don't overcount the real blocks removed from the inode, when deallocating a fragment that has not made it to disk yet. Also, during dirops, give the directory vnode an extra reference in SET_DIROP, to ensure its continued existence during SET_ENDOP, preventing a possible NULL-dereference there. These two changes should close PR #11064.
2000-10-15 03:22:14 +04:00
lfs_vunref(vp); \
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
}
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
#define MARK_VNODE(dvp) do { \
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
if (!((dvp)->v_flag & VDIROP)) { \
Update lfs_vunref for the fact that now a vnode can be locked with no references (locked for VOP_INACTIVE at the end of vrele) and it's okay. Check the return value of lfs_vref where appropriate. Fixes PR #s 10285 and 10352.
2000-06-22 22:11:45 +04:00
(void)lfs_vref(dvp); \
Address ufs_hashlock/ufs_ihashins protocol bug, discovered while doing a post-mortem of a production machine. Also, take the active dirop count off of the fs and make it global (since it is measuring a global resource) and tie the threshold value LFS_MAXDIROP to desiredvnodes.
1999-11-06 23:33:05 +03:00
++lfs_dirvcount; \
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
} \
(dvp)->v_flag |= VDIROP; \
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
if (!(VTOI(dvp)->i_flag & IN_ADIROP)) { \
++VTOI(dvp)->i_lfs->lfs_nadirop; \
} \
VTOI(dvp)->i_flag |= IN_ADIROP; \
} while(0)
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
#define UNMARK_VNODE(vp) lfs_unmark_vnode(vp)
void lfs_unmark_vnode(vp)
struct vnode *vp;
{
struct inode *ip;
ip = VTOI(vp);
if (ip->i_flag & IN_ADIROP)
--ip->i_lfs->lfs_nadirop;
ip->i_flag &= ~IN_ADIROP;
}
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
int
lfs prototypes
1996-02-10 01:28:45 +03:00
lfs_symlink(v)
void *v;
{
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
struct vop_symlink_args /* {
struct vnode *a_dvp;
struct vnode **a_vpp;
struct componentname *a_cnp;
struct vattr *a_vap;
char *a_target;
lfs prototypes
1996-02-10 01:28:45 +03:00
} */ *ap = v;
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
int error;
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if ((error = SET_DIROP(ap->a_dvp)) != 0) {
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
vput(ap->a_dvp);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
return error;
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
}
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
MARK_VNODE(ap->a_dvp);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
error = ufs_symlink(ap);
UNMARK_VNODE(ap->a_dvp);
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if (*(ap->a_vpp))
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
UNMARK_VNODE(*(ap->a_vpp));
SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"symlink");
return (error);
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
}
int
lfs prototypes
1996-02-10 01:28:45 +03:00
lfs_mknod(v)
void *v;
{
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
struct vop_mknod_args /* {
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
struct vnode *a_dvp;
struct vnode **a_vpp;
struct componentname *a_cnp;
struct vattr *a_vap;
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
} */ *ap = v;
Make changes that will allow an LFS filesystem to be used as the root filesystem. In particular, - Fix mknod deadlock, described in PR 8172. - Enable lfs_mountroot. - Make lfs_writevnodes treat filesystems mounted on lfs device nodes properly, by flushing that device rather than trying to add blocks to the device inode. This, in combination with lfs boot blocks, will allow operation of an all-lfs system.
1999-09-04 02:48:51 +04:00
struct vattr *vap = ap->a_vap;
struct vnode **vpp = ap->a_vpp;
struct inode *ip;
int error;
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if ((error = SET_DIROP(ap->a_dvp)) != 0) {
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
vput(ap->a_dvp);
Make changes that will allow an LFS filesystem to be used as the root filesystem. In particular, - Fix mknod deadlock, described in PR 8172. - Enable lfs_mountroot. - Make lfs_writevnodes treat filesystems mounted on lfs device nodes properly, by flushing that device rather than trying to add blocks to the device inode. This, in combination with lfs boot blocks, will allow operation of an all-lfs system.
1999-09-04 02:48:51 +04:00
return error;
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
}
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
MARK_VNODE(ap->a_dvp);
Make changes that will allow an LFS filesystem to be used as the root filesystem. In particular, - Fix mknod deadlock, described in PR 8172. - Enable lfs_mountroot. - Make lfs_writevnodes treat filesystems mounted on lfs device nodes properly, by flushing that device rather than trying to add blocks to the device inode. This, in combination with lfs boot blocks, will allow operation of an all-lfs system.
1999-09-04 02:48:51 +04:00
error = ufs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode),
ap->a_dvp, vpp, ap->a_cnp);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
UNMARK_VNODE(ap->a_dvp);
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if (*(ap->a_vpp))
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
UNMARK_VNODE(*(ap->a_vpp));
Make changes that will allow an LFS filesystem to be used as the root filesystem. In particular, - Fix mknod deadlock, described in PR 8172. - Enable lfs_mountroot. - Make lfs_writevnodes treat filesystems mounted on lfs device nodes properly, by flushing that device rather than trying to add blocks to the device inode. This, in combination with lfs boot blocks, will allow operation of an all-lfs system.
1999-09-04 02:48:51 +04:00
/* Either way we're done with the dirop at this point */
Disallow threshold-initiated cache flush when dirops are active. Also, make SET_ENDOP use lfs_check instead of inlining most of it.
1999-04-12 04:36:47 +04:00
SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"mknod");
Make changes that will allow an LFS filesystem to be used as the root filesystem. In particular, - Fix mknod deadlock, described in PR 8172. - Enable lfs_mountroot. - Make lfs_writevnodes treat filesystems mounted on lfs device nodes properly, by flushing that device rather than trying to add blocks to the device inode. This, in combination with lfs boot blocks, will allow operation of an all-lfs system.
1999-09-04 02:48:51 +04:00
if (error)
return (error);
ip = VTOI(*vpp);
ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
if (vap->va_rdev != VNOVAL) {
/*
* Want to be able to use this to make badblock
* inodes, so don't truncate the dev number.
*/
#if 0
ip->i_ffs_rdev = ufs_rw32(vap->va_rdev,
UFS_MPNEEDSWAP((*vpp)->v_mount));
#else
ip->i_ffs_rdev = vap->va_rdev;
#endif
}
/*
* Call fsync to write the vnode so that we don't have to deal with
* flushing it when it's marked VDIROP|VXLOCK.
*
* XXX KS - If we can't flush we also can't call vgone(), so must
* return. But, that leaves this vnode in limbo, also not good.
* Can this ever happen (barring hardware failure)?
*/
Make buildable again. The previous commit was a backout of rev. 1.45, which must be an accident.
2000-11-18 05:11:23 +03:00
if ((error = VOP_FSYNC(*vpp, NOCRED, FSYNC_WAIT, 0, 0, curproc)) != 0) {
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
printf("Couldn't fsync in mknod (ino %d)---what do I do?\n",
VTOI(*vpp)->i_number);
Make changes that will allow an LFS filesystem to be used as the root filesystem. In particular, - Fix mknod deadlock, described in PR 8172. - Enable lfs_mountroot. - Make lfs_writevnodes treat filesystems mounted on lfs device nodes properly, by flushing that device rather than trying to add blocks to the device inode. This, in combination with lfs boot blocks, will allow operation of an all-lfs system.
1999-09-04 02:48:51 +04:00
return (error);
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
}
Make changes that will allow an LFS filesystem to be used as the root filesystem. In particular, - Fix mknod deadlock, described in PR 8172. - Enable lfs_mountroot. - Make lfs_writevnodes treat filesystems mounted on lfs device nodes properly, by flushing that device rather than trying to add blocks to the device inode. This, in combination with lfs boot blocks, will allow operation of an all-lfs system.
1999-09-04 02:48:51 +04:00
/*
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
* Remove vnode so that it will be reloaded by VFS_VGET and
Make changes that will allow an LFS filesystem to be used as the root filesystem. In particular, - Fix mknod deadlock, described in PR 8172. - Enable lfs_mountroot. - Make lfs_writevnodes treat filesystems mounted on lfs device nodes properly, by flushing that device rather than trying to add blocks to the device inode. This, in combination with lfs boot blocks, will allow operation of an all-lfs system.
1999-09-04 02:48:51 +04:00
* checked to see if it is an alias of an existing entry in
* the inode cache.
*/
/* Used to be vput, but that causes us to call VOP_INACTIVE twice. */
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
VOP_UNLOCK(*vpp, 0);
Make changes that will allow an LFS filesystem to be used as the root filesystem. In particular, - Fix mknod deadlock, described in PR 8172. - Enable lfs_mountroot. - Make lfs_writevnodes treat filesystems mounted on lfs device nodes properly, by flushing that device rather than trying to add blocks to the device inode. This, in combination with lfs boot blocks, will allow operation of an all-lfs system.
1999-09-04 02:48:51 +04:00
lfs_vunref(*vpp);
(*vpp)->v_type = VNON;
vgone(*vpp);
*vpp = 0;
return (0);
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
}
int
lfs prototypes
1996-02-10 01:28:45 +03:00
lfs_create(v)
void *v;
{
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
struct vop_create_args /* {
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
struct vnode *a_dvp;
struct vnode **a_vpp;
struct componentname *a_cnp;
struct vattr *a_vap;
lfs prototypes
1996-02-10 01:28:45 +03:00
} */ *ap = v;
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
int error;
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if((error = SET_DIROP(ap->a_dvp)) != 0) {
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
vput(ap->a_dvp);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
return error;
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
}
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
MARK_VNODE(ap->a_dvp);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
error = ufs_create(ap);
UNMARK_VNODE(ap->a_dvp);
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if (*(ap->a_vpp))
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
UNMARK_VNODE(*(ap->a_vpp));
Disallow threshold-initiated cache flush when dirops are active. Also, make SET_ENDOP use lfs_check instead of inlining most of it.
1999-04-12 04:36:47 +04:00
SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"create");
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
return (error);
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
}
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
int
lfs_whiteout(v)
void *v;
{
struct vop_whiteout_args /* {
struct vnode *a_dvp;
struct componentname *a_cnp;
int a_flags;
} */ *ap = v;
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
int error;
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if ((error = SET_DIROP(ap->a_dvp)) != 0)
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
/* XXX no unlock here? */
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
return error;
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
MARK_VNODE(ap->a_dvp);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
error = ufs_whiteout(ap);
UNMARK_VNODE(ap->a_dvp);
Disallow threshold-initiated cache flush when dirops are active. Also, make SET_ENDOP use lfs_check instead of inlining most of it.
1999-04-12 04:36:47 +04:00
SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"whiteout");
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
return (error);
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
}
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
int
lfs prototypes
1996-02-10 01:28:45 +03:00
lfs_mkdir(v)
void *v;
{
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
struct vop_mkdir_args /* {
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
struct vnode *a_dvp;
struct vnode **a_vpp;
struct componentname *a_cnp;
struct vattr *a_vap;
lfs prototypes
1996-02-10 01:28:45 +03:00
} */ *ap = v;
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
int error;
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if((error = SET_DIROP(ap->a_dvp)) != 0) {
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
vput(ap->a_dvp);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
return error;
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
}
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
MARK_VNODE(ap->a_dvp);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
error = ufs_mkdir(ap);
UNMARK_VNODE(ap->a_dvp);
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if (*(ap->a_vpp))
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
UNMARK_VNODE(*(ap->a_vpp));
Disallow threshold-initiated cache flush when dirops are active. Also, make SET_ENDOP use lfs_check instead of inlining most of it.
1999-04-12 04:36:47 +04:00
SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"mkdir");
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
return (error);
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
}
int
lfs prototypes
1996-02-10 01:28:45 +03:00
lfs_remove(v)
void *v;
{
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
struct vop_remove_args /* {
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
struct vnode *a_dvp;
struct vnode *a_vp;
struct componentname *a_cnp;
lfs prototypes
1996-02-10 01:28:45 +03:00
} */ *ap = v;
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
struct vnode *dvp, *vp;
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
int error;
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
dvp = ap->a_dvp;
vp = ap->a_vp;
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if ((error = SET_DIROP(dvp)) != 0) {
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
if (dvp == vp)
vrele(vp);
else
vput(vp);
vput(dvp);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
return error;
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
}
MARK_VNODE(dvp);
MARK_VNODE(vp);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
error = ufs_remove(ap);
UNMARK_VNODE(dvp);
UNMARK_VNODE(vp);
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
/*
* If ufs_remove failed, vp doesn't need to be VDIROP any more.
* If it succeeded, we can go ahead and wipe out vp, since
* its loss won't appear on disk until checkpoint, and by then
* dvp will have been written, completing the dirop.
*/
--lfs_dirvcount;
vp->v_flag &= ~VDIROP;
wakeup(&lfs_dirvcount);
vrele(vp);
Move SET_ENDOP after vrele to avoid deactivating vnode twice, if SET_ENDOP triggers a write.
2000-07-01 23:03:57 +04:00
SET_ENDOP(VTOI(dvp)->i_lfs,dvp,"remove");
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
return (error);
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
}
int
lfs prototypes
1996-02-10 01:28:45 +03:00
lfs_rmdir(v)
void *v;
{
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
struct vop_rmdir_args /* {
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
struct vnodeop_desc *a_desc;
struct vnode *a_dvp;
struct vnode *a_vp;
struct componentname *a_cnp;
lfs prototypes
1996-02-10 01:28:45 +03:00
} */ *ap = v;
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
int error;
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if ((error = SET_DIROP(ap->a_dvp)) != 0) {
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
vrele(ap->a_dvp);
if (ap->a_vp->v_mountedhere != NULL)
VOP_UNLOCK(ap->a_dvp, 0);
vput(ap->a_vp);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
return error;
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
}
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
MARK_VNODE(ap->a_dvp);
MARK_VNODE(ap->a_vp);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
error = ufs_rmdir(ap);
UNMARK_VNODE(ap->a_dvp);
UNMARK_VNODE(ap->a_vp);
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
/*
* If ufs_rmdir failed, vp doesn't need to be VDIROP any more.
* If it succeeded, we can go ahead and wipe out vp, since
* its loss won't appear on disk until checkpoint, and by then
* dvp will have been written, completing the dirop.
*/
--lfs_dirvcount;
ap->a_vp->v_flag &= ~VDIROP;
wakeup(&lfs_dirvcount);
vrele(ap->a_vp);
Move SET_ENDOP after vrele to avoid deactivating vnode twice, if SET_ENDOP triggers a write.
2000-07-01 23:03:57 +04:00
SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"rmdir");
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
return (error);
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
}
int
lfs prototypes
1996-02-10 01:28:45 +03:00
lfs_link(v)
void *v;
{
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
struct vop_link_args /* {
Fix vop_link, vop_symlink, and vop_remove semantics in several ways: * Change the argument names to vop_link so they actually make sense. * Implement vop_link and vop_symlink for all file systems, so they do proper cleanup. * Require the file system to decide whether or not linking and unlinking of directories is allowed, and disable it for all current file systems.
1996-02-09 17:45:36 +03:00
struct vnode *a_dvp;
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
struct vnode *a_vp;
struct componentname *a_cnp;
lfs prototypes
1996-02-10 01:28:45 +03:00
} */ *ap = v;
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
int error;
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if ((error = SET_DIROP(ap->a_dvp)) != 0) {
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
vput(ap->a_dvp);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
return error;
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
}
Fix vop_link, vop_symlink, and vop_remove semantics in several ways: * Change the argument names to vop_link so they actually make sense. * Implement vop_link and vop_symlink for all file systems, so they do proper cleanup. * Require the file system to decide whether or not linking and unlinking of directories is allowed, and disable it for all current file systems.
1996-02-09 17:45:36 +03:00
MARK_VNODE(ap->a_dvp);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
error = ufs_link(ap);
UNMARK_VNODE(ap->a_dvp);
Disallow threshold-initiated cache flush when dirops are active. Also, make SET_ENDOP use lfs_check instead of inlining most of it.
1999-04-12 04:36:47 +04:00
SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"link");
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
return (error);
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
}
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
int
lfs prototypes
1996-02-10 01:28:45 +03:00
lfs_rename(v)
void *v;
{
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
struct vop_rename_args /* {
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
struct vnode *a_fdvp;
struct vnode *a_fvp;
struct componentname *a_fcnp;
struct vnode *a_tdvp;
struct vnode *a_tvp;
struct componentname *a_tcnp;
lfs prototypes
1996-02-10 01:28:45 +03:00
} */ *ap = v;
Better fix for PR# 8577: before setting dirops, check for cross-device rename and error out. This avoids possible problems with attempting rename between two LFSs.
1999-11-05 23:14:56 +03:00
struct vnode *tvp, *fvp, *tdvp, *fdvp;
int error;
Check that the destination vnode is on an LFS before trying to twiddle its superblock. Fixes PR#8577.
1999-11-01 21:29:33 +03:00
struct lfs *fs;
fs = VTOI(ap->a_fdvp)->i_lfs;
Better fix for PR# 8577: before setting dirops, check for cross-device rename and error out. This avoids possible problems with attempting rename between two LFSs.
1999-11-05 23:14:56 +03:00
tvp = ap->a_tvp;
tdvp = ap->a_tdvp;
fvp = ap->a_fvp;
fdvp = ap->a_fdvp;
/*
* Check for cross-device rename.
* If it is, we don't want to set dirops, just error out.
* (In particular note that MARK_VNODE(tdvp) will DTWT on
* a cross-device rename.)
*
* Copied from ufs_rename.
*/
if ((fvp->v_mount != tdvp->v_mount) ||
(tvp && (fvp->v_mount != tvp->v_mount))) {
error = EXDEV;
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
goto errout;
Better fix for PR# 8577: before setting dirops, check for cross-device rename and error out. This avoids possible problems with attempting rename between two LFSs.
1999-11-05 23:14:56 +03:00
}
Fixes associated with filling an LFS: Change the space computation to appear to change the size of the *disk* rather than the *bytes used* when more segment summaries and inode blocks are written. Try to estimate the amount of space that these will take up when more files are written, so the disk size doesn't change too much. Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they now fail entirely, rather than succeeding half-way and leaving the fs in an inconsistent state. Rewrite lfs_truncate, mostly stealing from ffs_truncate. The old lfs_truncate had difficulty truncating a large file to a non-zero size (indirect blocks were not handled appropriately). Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be reclaimed immediately: this vnode would not be written to disk again anyway if the removal succeeded, and if it failed, no directory operation occurred. ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.
2000-06-28 00:57:11 +04:00
if ((error = SET_DIROP(fdvp))!=0)
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
goto errout;
Better fix for PR# 8577: before setting dirops, check for cross-device rename and error out. This avoids possible problems with attempting rename between two LFSs.
1999-11-05 23:14:56 +03:00
MARK_VNODE(fdvp);
MARK_VNODE(tdvp);
error = ufs_rename(ap);
Prevent dirops from getting around lfs_check and wedging the buffer cache. All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which is removed as soon as the dirop is done (as opposed to VDIROP which stays until the file is written). To address one issue raised in PR#9357.
2000-05-27 04:19:52 +04:00
UNMARK_VNODE(fdvp);
UNMARK_VNODE(tdvp);
Better fix for PR# 8577: before setting dirops, check for cross-device rename and error out. This avoids possible problems with attempting rename between two LFSs.
1999-11-05 23:14:56 +03:00
SET_ENDOP(fs,fdvp,"rename");
return (error);
Fix error returns on lfs vnops so that locks and reference counts are preserved. Handle dirop accounting in lfs_vfree for this case as well. May address PR#8823.
1999-12-15 10:19:07 +03:00
errout:
VOP_ABORTOP(tdvp, ap->a_tcnp); /* XXX, why not in NFS? */
if (tdvp == tvp)
vrele(tdvp);
else
vput(tdvp);
if (tvp)
vput(tvp);
VOP_ABORTOP(fdvp, ap->a_fcnp); /* XXX, why not in NFS? */
vrele(fdvp);
vrele(fvp);
return (error);
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
}
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
/* XXX hack to avoid calling ITIMES in getattr */
int
lfs prototypes
1996-02-10 01:28:45 +03:00
lfs_getattr(v)
void *v;
{
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
struct vop_getattr_args /* {
struct vnode *a_vp;
struct vattr *a_vap;
struct ucred *a_cred;
struct proc *a_p;
lfs prototypes
1996-02-10 01:28:45 +03:00
} */ *ap = v;
Remove register declarations.
2000-03-30 16:41:09 +04:00
struct vnode *vp = ap->a_vp;
struct inode *ip = VTOI(vp);
struct vattr *vap = ap->a_vap;
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
/*
* Copy from inode table
*/
vap->va_fsid = ip->i_dev;
vap->va_fileid = ip->i_number;
Add support for ext2fs, this needed a few modifications to ufs/ufs/inode.h: - added an "union inode_ext" to struct inode, for the per-fs extentions. For now only ext2fs uses it. - i_din is now an union: union { struct dinode ffs_din; /* 128 bytes of the on-disk dinode. */ struct ext2fs_dinode e2fs_din; /* 128 bytes of the on-disk dinode. */ } i_din Added a lot of #define i_ffs_* and i_e2fs_* to access the fields. - Added two macros: FFS_ITIMES and EXT2FS_ITIMES. ITIMES calls the rigth macro, depending on the time of the inode. ITIMES is used where necessary, FFS_ITIMES and EXT2FS_ITIMES in other places.
1997-06-11 14:09:37 +04:00
vap->va_mode = ip->i_ffs_mode & ~IFMT;
vap->va_nlink = ip->i_ffs_nlink;
vap->va_uid = ip->i_ffs_uid;
vap->va_gid = ip->i_ffs_gid;
vap->va_rdev = (dev_t)ip->i_ffs_rdev;
vap->va_size = ip->i_ffs_size;
vap->va_atime.tv_sec = ip->i_ffs_atime;
vap->va_atime.tv_nsec = ip->i_ffs_atimensec;
vap->va_mtime.tv_sec = ip->i_ffs_mtime;
vap->va_mtime.tv_nsec = ip->i_ffs_mtimensec;
vap->va_ctime.tv_sec = ip->i_ffs_ctime;
vap->va_ctime.tv_nsec = ip->i_ffs_ctimensec;
vap->va_flags = ip->i_ffs_flags;
vap->va_gen = ip->i_ffs_gen;
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
/* this doesn't belong here */
if (vp->v_type == VBLK)
vap->va_blocksize = BLKDEV_IOSIZE;
else if (vp->v_type == VCHR)
vap->va_blocksize = MAXBSIZE;
else
vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize;
argument to dbtob needs to be cast to u_quad_t here to avoid shift lossage
1998-11-07 02:02:12 +03:00
vap->va_bytes = dbtob((u_quad_t)ip->i_ffs_blocks);
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
vap->va_type = vp->v_type;
vap->va_filerev = ip->i_modrev;
return (0);
}
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
/*
* Close called
*
* XXX -- we were using ufs_close, but since it updates the
* times on the inode, we might need to bump the uinodes
* count.
*/
/* ARGSUSED */
int
lfs prototypes
1996-02-10 01:28:45 +03:00
lfs_close(v)
void *v;
{
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
struct vop_close_args /* {
struct vnode *a_vp;
int a_fflag;
struct ucred *a_cred;
struct proc *a_p;
lfs prototypes
1996-02-10 01:28:45 +03:00
} */ *ap = v;
Remove register declarations.
2000-03-30 16:41:09 +04:00
struct vnode *vp = ap->a_vp;
struct inode *ip = VTOI(vp);
Add a set of generic file system operations that most file systems use. Also, fix some time stamp bogosities.
1996-09-02 03:47:48 +04:00
struct timespec ts;
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
simple_lock(&vp->v_interlock);
if (vp->v_usecount > 1) {
Add a set of generic file system operations that most file systems use. Also, fix some time stamp bogosities.
1996-09-02 03:47:48 +04:00
TIMEVAL_TO_TIMESPEC(&time, &ts);
New sources should leave the LFS in a more-or-less working state. Changes include: - DIROP segregation is enabled, and greater care is taken to make sure that a checkpoint completes. Fsck is not needed to remount the filesystem. - Several checks to make sure that the LFS subsystem does not overuse various resources (memory, in particular). - The cleaner routines, lfs_markv in particular, are completely rewritten. A buffer overflow is removed. Greater care is taken to ensure that inodes come from where lfs_cleanerd say they come from (so we know nothing has changed since lfs_bmapv was called). - Fragment allocation is fixed, so that writes beyond end-of-file do the right thing.
1999-03-10 03:20:00 +03:00
LFS_ITIMES(ip, &ts, &ts, &ts);
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
}
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
simple_unlock(&vp->v_interlock);
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
return (0);
}
/*
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
* Reclaim an inode so that it can be used for other purposes.
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
*/
int lfs_no_inactive = 0;
int
lfs prototypes
1996-02-10 01:28:45 +03:00
lfs_reclaim(v)
void *v;
{
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
struct vop_reclaim_args /* {
struct vnode *a_vp;
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
struct proc *a_p;
lfs prototypes
1996-02-10 01:28:45 +03:00
} */ *ap = v;
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
struct vnode *vp = ap->a_vp;
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
int error;
Clean up accounting of lfs_uinodes (dirty but unwritten inodes). Make lfs_uinodes a signed quantity for debugging purposes, and set it to zero as fs mount time. Enclose setting/clearing of the dirty flags (IN_MODIFIED, IN_ACCESSED, IN_CLEANING) in macros, and use those macros everywhere. Make LFS_ITIMES use these macros; updated the ITIMES macro in inode.h to know about this. Make ufs_getattr use ITIMES instead of FFS_ITIMES.
2000-07-06 02:25:43 +04:00
LFS_CLR_UINO(VTOI(vp), IN_ALLMOD);
Merge with Lite2 + local changes
1998-03-01 05:20:01 +03:00
if ((error = ufs_reclaim(vp, ap->a_p)))
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
return (error);
Use the pool allocator and the "nointr" pool page allocator for LFS inodes.
1998-09-01 07:26:05 +04:00
pool_put(&lfs_inode_pool, vp->v_data);
Update to 4.4-Lite fs code, with local changes.
1994-06-08 15:41:58 +04:00
vp->v_data = NULL;
return (0);
}
Reference in New Issue Copy Permalink