Commit Graph

345 Commits

Author SHA1 Message Date
perseant 32bd59cdf6 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 07:19:07 +00:00
perseant fa6a733240 In lfs_bwrite, don't mark buffers dirty if lfs is mounted read-only.
(Previously buffers could be marked dirty by the cleaner, and possibly by
other means.)

Also check for softdep mount in vfs_shutdown before trying to bawrite
buffers, since other filesystems don't need it and lfs doesn't bawrite.
(This fragment reviewed by fvdl.)

Partially addresses PR#8964.
1999-12-15 07:10:32 +00:00
wrstuden b93040c6f1 Modify ufs_rename() to a) be more careful about reference counts (we no longer
depend on the initial lookups being doen with SAVESTART), and b) check
return values for errors.

Should fix PR 8491 for ufs - two simultaneous identical renames will now
work correctly. One will succeed, one will fail.
1999-12-13 19:07:21 +00:00
drochner 800b976584 Call ffs_oldfscompat() before all the consistency checks, to avoid the
use of uninitialized data in the checks if the filesystem is an old one.
1999-12-10 14:36:04 +00:00
simonb 3238e654f9 Use an explicitly sized type (u_int32_t) for inode numbers in the super
block instead of ino_t.  Reviewed by Konrad Schroder.
1999-12-08 23:17:31 +00:00
ragge 6aabd4d0c2 CL* discarding. 1999-12-04 12:11:13 +00:00
perseant 22979769c0 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.
1999-12-03 21:47:44 +00:00
fvdl d901f6eae0 Be more careful to block bio interrupts for some data structures. There
were at least a few missed cases where vp->v_{clean,dirty}blkhd were
unprotected since the softdep/trickle sync merge.
1999-11-23 23:52:40 +00:00
perseant bb2093f24a Initialize i_ffs_effnlink, so every file doesn't look like it's already been
deleted for the purpose of dirops (particularly create and mkdir).  Addresses
PR#8815.
1999-11-21 19:25:31 +00:00
enami 13cd632041 Define i_e2fs_rdev. 1999-11-18 08:26:21 +00:00
enami 068ded93c6 Cosmetic changes; fix indentation and usage of white spaces. 1999-11-18 08:23:22 +00:00
perseant ff33b3365d Fix spllevel problem with superblock exclusion and with segment write throttle.
May address PR#8383.
1999-11-17 20:08:30 +00:00
lukem a3b9423bb0 fix lp64 lossage 1999-11-16 03:06:06 +00:00
fvdl 0b1963121a 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 18:49:07 +00:00
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