264 lines
10 KiB
C
264 lines
10 KiB
C
/* $NetBSD: ffs_vnops.c,v 1.11 1998/02/10 14:10:57 mrg Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1982, 1986, 1989, 1993
|
|
* 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.
|
|
*
|
|
* @(#)ffs_vnops.c 8.10 (Berkeley) 8/10/94
|
|
*/
|
|
|
|
#include "opt_uvm.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.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>
|
|
#include <sys/signalvar.h>
|
|
|
|
#include <vm/vm.h>
|
|
|
|
#if defined(UVM)
|
|
#include <uvm/uvm_extern.h>
|
|
#endif
|
|
|
|
#include <miscfs/fifofs/fifo.h>
|
|
#include <miscfs/genfs/genfs.h>
|
|
#include <miscfs/specfs/specdev.h>
|
|
|
|
#include <ufs/ufs/quota.h>
|
|
#include <ufs/ufs/inode.h>
|
|
#include <ufs/ufs/dir.h>
|
|
#include <ufs/ufs/ufs_extern.h>
|
|
#include <ufs/ufs/ufsmount.h>
|
|
|
|
#include <ufs/ffs/fs.h>
|
|
#include <ufs/ffs/ffs_extern.h>
|
|
|
|
/* Global vfs data structures for ufs. */
|
|
int (**ffs_vnodeop_p) __P((void *));
|
|
struct vnodeopv_entry_desc ffs_vnodeop_entries[] = {
|
|
{ &vop_default_desc, vn_default_error },
|
|
{ &vop_lookup_desc, ufs_lookup }, /* lookup */
|
|
{ &vop_create_desc, ufs_create }, /* create */
|
|
{ &vop_whiteout_desc, ufs_whiteout }, /* whiteout */
|
|
{ &vop_mknod_desc, ufs_mknod }, /* mknod */
|
|
{ &vop_open_desc, ufs_open }, /* open */
|
|
{ &vop_close_desc, ufs_close }, /* close */
|
|
{ &vop_access_desc, ufs_access }, /* access */
|
|
{ &vop_getattr_desc, ufs_getattr }, /* getattr */
|
|
{ &vop_setattr_desc, ufs_setattr }, /* setattr */
|
|
{ &vop_read_desc, ffs_read }, /* read */
|
|
{ &vop_write_desc, ffs_write }, /* write */
|
|
{ &vop_lease_desc, ufs_lease_check }, /* lease */
|
|
{ &vop_ioctl_desc, ufs_ioctl }, /* ioctl */
|
|
{ &vop_poll_desc, ufs_poll }, /* poll */
|
|
{ &vop_mmap_desc, ufs_mmap }, /* mmap */
|
|
{ &vop_fsync_desc, ffs_fsync }, /* fsync */
|
|
{ &vop_seek_desc, ufs_seek }, /* seek */
|
|
{ &vop_remove_desc, ufs_remove }, /* remove */
|
|
{ &vop_link_desc, ufs_link }, /* link */
|
|
{ &vop_rename_desc, ufs_rename }, /* rename */
|
|
{ &vop_mkdir_desc, ufs_mkdir }, /* mkdir */
|
|
{ &vop_rmdir_desc, ufs_rmdir }, /* rmdir */
|
|
{ &vop_symlink_desc, ufs_symlink }, /* symlink */
|
|
{ &vop_readdir_desc, ufs_readdir }, /* readdir */
|
|
{ &vop_readlink_desc, ufs_readlink }, /* readlink */
|
|
{ &vop_abortop_desc, ufs_abortop }, /* abortop */
|
|
{ &vop_inactive_desc, ufs_inactive }, /* inactive */
|
|
{ &vop_reclaim_desc, ffs_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, ffs_blkatoff }, /* blkatoff */
|
|
{ &vop_valloc_desc, ffs_valloc }, /* valloc */
|
|
{ &vop_reallocblks_desc, ffs_reallocblks }, /* reallocblks */
|
|
{ &vop_vfree_desc, ffs_vfree }, /* vfree */
|
|
{ &vop_truncate_desc, ffs_truncate }, /* truncate */
|
|
{ &vop_update_desc, ffs_update }, /* update */
|
|
{ &vop_bwrite_desc, vn_bwrite }, /* bwrite */
|
|
{ (struct vnodeop_desc*)NULL, (int(*) __P((void*)))NULL }
|
|
};
|
|
struct vnodeopv_desc ffs_vnodeop_opv_desc =
|
|
{ &ffs_vnodeop_p, ffs_vnodeop_entries };
|
|
|
|
int (**ffs_specop_p) __P((void *));
|
|
struct vnodeopv_entry_desc ffs_specop_entries[] = {
|
|
{ &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, ufs_getattr }, /* getattr */
|
|
{ &vop_setattr_desc, ufs_setattr }, /* setattr */
|
|
{ &vop_read_desc, ufsspec_read }, /* read */
|
|
{ &vop_write_desc, ufsspec_write }, /* write */
|
|
{ &vop_lease_desc, spec_lease_check }, /* lease */
|
|
{ &vop_ioctl_desc, spec_ioctl }, /* ioctl */
|
|
{ &vop_poll_desc, spec_poll }, /* poll */
|
|
{ &vop_mmap_desc, spec_mmap }, /* mmap */
|
|
{ &vop_fsync_desc, ffs_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 */
|
|
{ &vop_inactive_desc, ufs_inactive }, /* inactive */
|
|
{ &vop_reclaim_desc, ffs_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_reallocblks_desc, spec_reallocblks }, /* reallocblks */
|
|
{ &vop_vfree_desc, ffs_vfree }, /* vfree */
|
|
{ &vop_truncate_desc, spec_truncate }, /* truncate */
|
|
{ &vop_update_desc, ffs_update }, /* update */
|
|
{ &vop_bwrite_desc, vn_bwrite }, /* bwrite */
|
|
{ (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL }
|
|
};
|
|
struct vnodeopv_desc ffs_specop_opv_desc =
|
|
{ &ffs_specop_p, ffs_specop_entries };
|
|
|
|
#ifdef FIFO
|
|
int (**ffs_fifoop_p) __P((void *));
|
|
struct vnodeopv_entry_desc ffs_fifoop_entries[] = {
|
|
{ &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, ufs_getattr }, /* getattr */
|
|
{ &vop_setattr_desc, ufs_setattr }, /* setattr */
|
|
{ &vop_read_desc, ufsfifo_read }, /* read */
|
|
{ &vop_write_desc, ufsfifo_write }, /* write */
|
|
{ &vop_lease_desc, fifo_lease_check }, /* lease */
|
|
{ &vop_ioctl_desc, fifo_ioctl }, /* ioctl */
|
|
{ &vop_poll_desc, fifo_poll }, /* poll */
|
|
{ &vop_mmap_desc, fifo_mmap }, /* mmap */
|
|
{ &vop_fsync_desc, ffs_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 */
|
|
{ &vop_inactive_desc, ufs_inactive }, /* inactive */
|
|
{ &vop_reclaim_desc, ffs_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_reallocblks_desc, fifo_reallocblks }, /* reallocblks */
|
|
{ &vop_vfree_desc, ffs_vfree }, /* vfree */
|
|
{ &vop_truncate_desc, fifo_truncate }, /* truncate */
|
|
{ &vop_update_desc, ffs_update }, /* update */
|
|
{ &vop_bwrite_desc, vn_bwrite }, /* bwrite */
|
|
{ (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL }
|
|
};
|
|
struct vnodeopv_desc ffs_fifoop_opv_desc =
|
|
{ &ffs_fifoop_p, ffs_fifoop_entries };
|
|
#endif /* FIFO */
|
|
|
|
#ifdef DEBUG
|
|
/*
|
|
* Enabling cluster read/write operations.
|
|
*/
|
|
#include <sys/sysctl.h>
|
|
int doclusterread = 1;
|
|
struct ctldebug debug11 = { "doclusterread", &doclusterread };
|
|
int doclusterwrite = 1;
|
|
struct ctldebug debug12 = { "doclusterwrite", &doclusterwrite };
|
|
#else
|
|
/* XXX for ufs_readwrite */
|
|
#define doclusterread 1
|
|
#define doclusterwrite 1
|
|
#endif
|
|
|
|
#include <ufs/ufs/ufs_readwrite.c>
|
|
|
|
/*
|
|
* Reclaim an inode so that it can be used for other purposes.
|
|
*/
|
|
int
|
|
ffs_reclaim(v)
|
|
void *v;
|
|
{
|
|
struct vop_reclaim_args /* {
|
|
struct vnode *a_vp;
|
|
} */ *ap = v;
|
|
register struct vnode *vp = ap->a_vp;
|
|
int error;
|
|
|
|
if ((error = ufs_reclaim(vp)) != 0)
|
|
return (error);
|
|
FREE(vp->v_data, VFSTOUFS(vp->v_mount)->um_devvp->v_tag == VT_MFS ?
|
|
M_MFSNODE : M_FFSNODE);
|
|
vp->v_data = NULL;
|
|
return (0);
|
|
}
|