Commit Graph

331 Commits

Author SHA1 Message Date
perseant fc5ecbb5a8 Back out my patch of the 8th (to address unreferenced inode problem).
Apparently this needs more thought.
1999-11-12 16:56:48 +00:00
perseant 26c34e715f If ifile blocks were written before dirops were complete, and then the
system crashed, inodes could be allocated that were not referenced.  (Though
not a serious problem, it evidences itself in phase 4 of fsck_lfs.)  Fix
this by marking if_daddr with UNASSIGNED before the inodes are actually
written; at mount time the ifile is checked for UNASSIGNED entries and
any that are found are linked back into the free list.  (The latter
functionality should move into the roll-forward agent when it materializes.)
1999-11-09 02:21:05 +00:00
perseant 3c63d0830f 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 20:33:05 +00:00
perseant b46550bdcf 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 20:14:56 +00:00
perseant ea1f38ce2f Check that the destination vnode is on an LFS before trying to twiddle
its superblock.  Fixes PR#8577.
1999-11-01 18:29:33 +00:00
perseant fde29faf34 Under degenerate access patterns (e.g. `bonnie' benchmark) lfs_check could
fail, because the particular block being requested was always in the cache
(although other routines that cannot afford to call lfs_check have in the
meantime stuffed the cache full of dirty blocks).  Partially addresses PR 8383.
1999-10-21 16:53:43 +00:00
enami fee96e1746 Check if the type of device node isn't VBAD before touching v_specinfo. If
the device vnode is revoked, the field is NULL and touching it causes null
pointer derefercence.
1999-10-20 14:32:09 +00:00
wrstuden e5bf8dc4d5 Catch a few cases missed earlier where we need to lock the vnode before
calling VOP_CLOSE().
1999-10-18 19:52:24 +00:00
wrstuden e682a080e9 In spec_close(), if we're not doing a non-blocking close and VXLOCK is
not set, unlock the vnode before calling the device's close routine and
relock it after it returns. tty close routines will sleep waiting for
buffers to drain, which won't happen often times as the other side needs
to grab the vnode lock first.

Make all unmount routines lock the device vnode before calling VOP_CLOSE().
1999-10-16 23:53:26 +00:00
mycroft 02781a3483 Fix printf() formats. 1999-10-01 22:07:42 +00:00
thorpej 29df848753 Need <string.h> for memcpy(3) prototype if building from userland. 1999-09-14 04:50:54 +00:00
augustss ada52e1f37 Add #include <sys/device.h> so this file compiles again. 1999-09-08 08:29:45 +00:00
sommerfeld c0411740d8 Avoid dereferencing NULL rootvp if booting diskless. 1999-09-08 03:45:22 +00:00
jdolecek 7dfaa17700 Adapt to cache_lookup() changes.
Tested by: jdolecek
Rewieved by: wrstuden
1999-09-05 14:26:32 +00:00
perseant c588aaf55f 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.
1999-09-03 22:48:51 +00:00
wrstuden 169a5eda2d Pull in changes which parallel rev 1.22 -> 1.25 of ufs_lookup(). 1999-08-04 18:40:47 +00:00
wrstuden 45ce38544f Make the compiler happy.. 1999-08-04 18:40:06 +00:00
wrstuden 3598f580dc Fix tyop in previous. 1999-08-04 18:14:59 +00:00
wrstuden 1eeee9e04a Modify ISDOTDOT case so that we only clear PDIRUNLOCK if we really
re-lock the parent vnode.
1999-08-04 18:07:39 +00:00
wrstuden 3bf14d81e9 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
1999-08-03 20:19:16 +00:00
drochner 12a6593f79 clean up inclusion of "opt_ffs.h" and use of "FFS_EI" a bit 1999-08-03 19:22:43 +00:00
wrstuden 6dfc303f3b Add PDIRUNLOCK support. 1999-08-02 22:58:29 +00:00
mycroft 0900226864 Make one code path a bit clearer. 1999-07-30 01:55:38 +00:00
wrstuden 976aedb7ac Adjust mountroot routines to vrele rootvp in case of mount error. Closes
PR 7977 by Neil Carson, <neil@brini.com>.
1999-07-17 01:08:28 +00:00
wrstuden 379a26972f Modify file systems to deal with struct lock in struct vnode. All leaf
fs's other than nfs use genfs_lock() for locking.

Modify lookup routines to set PDIRUNLOCK when they unlock the parrent.
1999-07-08 01:05:58 +00:00
thorpej c7855f5009 Nuke unneeded include file. 1999-07-03 18:40:32 +00:00
tls 4d649c3adb squash some compiler warnings on debug printfs by casting to int 1999-06-17 22:22:41 +00:00
perseant a818a47169 Minor changes to the segment live bytes calculation. In particular, fixed
a bug in fragment extension that could run the count negative.  Also, don't
overcount for inodes, and don't count segment summaries.  Thus, for empty
segments the live bytes count should now be exactly zero.
1999-06-15 22:25:41 +00:00
drochner b121ed29dd complete the previous
reindent syscall args
1999-06-09 12:18:19 +00:00
christos e2b181b130 prefix the lfs syscalls with sys_ 1999-06-09 04:52:11 +00:00
bouyer 466d1747ff memset ump->um_e2fs to 0 after malloc, it is bigger than SBSIZE and thus some
parts were left uninitialised. The symptom was that a read-only mount tried
to rewrite back the superblock.
1999-06-01 13:18:49 +00:00
perseant 88207e0cba Fixed lfs_update (and related functions) so that calls from lfs_fsync
will DTRT with vnodes marked VDIROP.  In particular, the message
"flushing VDIROP" will no longer appear, and the filesystem will remain
stable in the event of a crash.

This was particularly a problem with NFS-exported LFSes, since fsync
was called on every file close.
1999-06-01 03:00:40 +00:00
scottr bdd60e98f9 Include opt_ddb.h so we will get the Debugger() prototype. 1999-05-04 00:35:37 +00:00
perseant 4427f80b15 Other half of the ufs_hashlock locking fix (oops) 1999-04-16 16:23:46 +00:00
perseant 2d12a2d41d Fix locking panic on ufs_hashlock 1999-04-16 00:41:58 +00:00
perseant 40458c9d34 Fix lost lock in lfs_markv -- a typo-class bug, obvious when you look at it. 1999-04-14 19:37:28 +00:00
perseant 40cebde457 Check the superblock version field, and refuse to mount the filesystem
if the version number is higher than we know about.  This allows, e.g.,
changes in the format of the ifile, segment size restrictions and boundaries,
etc., which would not affect existing fields in the superblock, but which
would drastically affect the filesystem, to be smoothly integrated at a
later date.
1999-04-12 00:47:17 +00:00
perseant 65ba757424 Improve the debugging printfs in the cleaner syscalls (in particular, make
it obvious that they're coming from lfs).
1999-04-12 00:40:06 +00:00
perseant 8d72b3204a 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 00:36:47 +00:00
perseant a520288478 Fix block counting during file truncation, if not truncating to zero. 1999-04-12 00:30:08 +00:00
perseant bffea14a3f Make sure that the wakeup occurs for vnodes that lfs_update might be sleeping
on (nodes which are not marked IN_MODIFIED/IN_CLEANING, but which have dirty
buffers), by marking them with the appropriate flag if dirtybuffers were added
while the write was in progress.
1999-04-12 00:25:13 +00:00
perseant e6b7726c9a Better checking for held inode locks in lfs_fastvget, for a number of error
conditions.  Also change the default setting of lfs_clean_vnhead to 0, which
seems to make the locking problems go away (although this is difficult to
test as I can't reliably reproduce them).
1999-04-12 00:11:01 +00:00
perseant 7221719dc7 Fix "lfs_ifind: dinode xxx not found" panic. When inodes were freed,
then immediately reloaded, their dinodes were located in an inode block
which was not on disk at the advertized location, nor in the cache (although
it would be flushed to disk next segment write).  Fix this by using getblk()
instead of lfs_newbuf() for inode blocks.
1999-04-12 00:04:21 +00:00
perseant 97c6743666 Fix inode reporting in lfs_statfs (the meaning of f_files and f_ffree was
reversed).
1999-04-11 23:58:17 +00:00
perseant d24ffa7077 Mark the current segment with SEGUSE_ACTIVE at mount time, rather than waiting
for the first write.  If this is not done, the cleaner may try to clean the
current segment out from under the writer if the filesystem is mounted after
a crash (or any other time that the dirty:clean segment ration is high enough).
1999-04-11 23:31:09 +00:00
perseant 6a87896854 Take out the `#ifdef USE_UFSHASH'; use ufs_hashlock to lock the inode free
list instead of free_lock.
1999-04-11 23:24:04 +00:00
perseant 46ae977773 Change the reference to "newlfs" in the CHANGES file to the correct "newfs_lfs" 1999-04-10 18:31:05 +00:00
mycroft 704563569f It was silly to not make this exportable. 1999-04-04 18:15:58 +00:00
mycroft 9e81cc5022 Fix obvious bugs:
* The MNT_UPDATE case had a null pointer dereference.  (This is a good example
  of why blindly adding bogus initializiers is a FUNDAMENTALLY BAD IDEA!)
* Make sure the whole ufsmount is zeroed, as the export code relies on this.
* If we decided to use the second/alternate superblock, make sure to copy the
  in-core version from the right buffer.
Also, reenable NFS exporting.
1999-04-04 09:56:44 +00:00
perseant 7ea5ec6723 Fix buffer handling problems in lfs_vinvalbuf 1999-04-01 23:28:09 +00:00