Home | History | Annotate | only in /src/regress/sys/fs/lfs
History log of /src/regress/sys/fs/lfs
RevisionDateAuthorComments
 1.2 29-Jan-2003  perseant Regression test to ensure that (1) newfs_lfs and fsck_lfs agree about
what makes up a good filesystem; and that (2) the kernel and fsck_lfs
also agree. This test, like the 9994 test and like the FFS endianness
test, is not included in the main "make regress".
 1.1 02-Aug-2002  perseant Add regression tests section for LFS. First regression test is based on
IWAMOTO Toshihiro's test program submitted with PR #9994, modified to
perform the same operations on a control file, presumably held in a
known-working filesystem. Test and control files are compared with "diff"
after the run (assuming that the kernel does not panic, which is really
the main point of the test).

Not included in the parent Makefile's list, as it requires the existence of
an LFS of some size.
 1.3 28-Apr-2008  martin Remove clause 3 and 4 from TNF licenses
 1.2 09-Aug-2002  soren branches: 1.2.30;
Remove extraneous \n's in {err,warn}{,x}.
 1.1 02-Aug-2002  perseant Add regression tests section for LFS. First regression test is based on
IWAMOTO Toshihiro's test program submitted with PR #9994, modified to
perform the same operations on a control file, presumably held in a
known-working filesystem. Test and control files are compared with "diff"
after the run (assuming that the kernel does not panic, which is really
the main point of the test).

Not included in the parent Makefile's list, as it requires the existence of
an LFS of some size.
 1.2.30.1 18-May-2008  yamt sync with head.
 1.2 18-Sep-2002  lukem some makefile de-linting
- list NOxxx and LDSTATIC= assignments before everything else
(especially <bsd.own.mk>)
- ensure <bsd.own.mk> is included before NETBSDSRCDIR is used
- add missing RCSids
 1.1 02-Aug-2002  perseant Add regression tests section for LFS. First regression test is based on
IWAMOTO Toshihiro's test program submitted with PR #9994, modified to
perform the same operations on a control file, presumably held in a
known-working filesystem. Test and control files are compared with "diff"
after the run (assuming that the kernel does not panic, which is really
the main point of the test).

Not included in the parent Makefile's list, as it requires the existence of
an LFS of some size.
 1.7 11-Nov-2006  jmmv Move lfs_cleanerd from /usr/libexec to /libexec. This is to allow putting
the root file system on a LFS volume.

Addresses PR bin/30407. No objections in tech-userlevel@.
 1.6 21-Jul-2006  perseant Include testing of the roll-forward agent, when recreating the filesystem
partial-segment by partial-segment. Each checkpoint should pass fsck_lfs -n
without errors; the results of fsck_lfs -p on non-checkpoints should also
pass fsck_lfs -n without errors.
 1.5 24-Jun-2006  perseant Change LFCNWRAP{STOP,GO} to make them more suitable for snapshotting; in
particular, the caller can now choose whether to wait for the condition
to be met, and if the caller of LFCNWRAPSTOP dies or otherwise closes
the descriptor, the filesystem is started again. Updated the ckckp
regression test to use the new semantics.

dump_lfs(8) now uses the fcntls to implement LFS-style snapshotting through
the -X flag, addressing PR#33457 albeit not using fss(4). Fixed a couple
other problems with dump_lfs that manifested themselves during testing.
 1.4 05-May-2006  perseant Allow the user to specify a file size in the ckckp regression test, including
the value zero (filling the filesystem with directories and empty file
inodes).
 1.3 27-Apr-2006  perseant Be a little more careful about what we copy into the working file when;
this takes care of another class of false positives. Add copyright
assignments.
 1.2 22-Apr-2006  perseant Regression test improvements:

Move the stop for LFCNWRAPSTOP to the point at which writing at segment 0
is really about to commence, since this is what the test expects (and
incidentally what a snapshotting utility wants as well).

More correctly reconstruct the on-disk state at every checkpoint, rather
than relying on the entire state at the point of wrapping to be accurate
(that is only true the first time we wrap). Add a "make abort" target to
make rerunning the test more convenient when it has failed and we're done
analyzing the failure.
 1.1 17-Apr-2006  perseant Introduce two fcntl calls that freeze the filesystem right at the point
where segment 0 is being considered for writing. This allows for automated
checkpoint vailidity scanning, and could be used (in conjunction with the
existing LFCNREWIND) for e.g. snapshot dumps as well.

Include a regression test that does such scanning.

When writing the Ifile, loop through the dirty block list three times to
make sure that the checkpoint is always consistent (the first and second
times the Ifile blocks can cross a segment boundary; not so the third time
unless the segments are very small). Discovered by using the aforementioned
regression test.
 1.5 30-Apr-2008  martin Convert TNF licenses to new 2 clause variant
 1.4 21-Jul-2006  perseant branches: 1.4.18;
Include testing of the roll-forward agent, when recreating the filesystem
partial-segment by partial-segment. Each checkpoint should pass fsck_lfs -n
without errors; the results of fsck_lfs -p on non-checkpoints should also
pass fsck_lfs -n without errors.
 1.3 27-Apr-2006  perseant Be a little more careful about what we copy into the working file when;
this takes care of another class of false positives. Add copyright
assignments.
 1.2 22-Apr-2006  perseant Regression test improvements:

Move the stop for LFCNWRAPSTOP to the point at which writing at segment 0
is really about to commence, since this is what the test expects (and
incidentally what a snapshotting utility wants as well).

More correctly reconstruct the on-disk state at every checkpoint, rather
than relying on the entire state at the point of wrapping to be accurate
(that is only true the first time we wrap). Add a "make abort" target to
make rerunning the test more convenient when it has failed and we're done
analyzing the failure.
 1.1 17-Apr-2006  perseant Introduce two fcntl calls that freeze the filesystem right at the point
where segment 0 is being considered for writing. This allows for automated
checkpoint vailidity scanning, and could be used (in conjunction with the
existing LFCNREWIND) for e.g. snapshot dumps as well.

Include a regression test that does such scanning.

When writing the Ifile, loop through the dirty block list three times to
make sure that the checkpoint is always consistent (the first and second
times the Ifile blocks can cross a segment boundary; not so the third time
unless the segments are very small). Discovered by using the aforementioned
regression test.
 1.4.18.1 18-May-2008  yamt sync with head.
 1.6 28-Apr-2008  martin Remove clause 3 and 4 from TNF licenses
 1.5 21-Jul-2006  perseant branches: 1.5.18;
Include testing of the roll-forward agent, when recreating the filesystem
partial-segment by partial-segment. Each checkpoint should pass fsck_lfs -n
without errors; the results of fsck_lfs -p on non-checkpoints should also
pass fsck_lfs -n without errors.
 1.4 24-Jun-2006  perseant Change LFCNWRAP{STOP,GO} to make them more suitable for snapshotting; in
particular, the caller can now choose whether to wait for the condition
to be met, and if the caller of LFCNWRAPSTOP dies or otherwise closes
the descriptor, the filesystem is started again. Updated the ckckp
regression test to use the new semantics.

dump_lfs(8) now uses the fcntls to implement LFS-style snapshotting through
the -X flag, addressing PR#33457 albeit not using fss(4). Fixed a couple
other problems with dump_lfs that manifested themselves during testing.
 1.3 27-Apr-2006  perseant Be a little more careful about what we copy into the working file when;
this takes care of another class of false positives. Add copyright
assignments.
 1.2 22-Apr-2006  perseant Regression test improvements:

Move the stop for LFCNWRAPSTOP to the point at which writing at segment 0
is really about to commence, since this is what the test expects (and
incidentally what a snapshotting utility wants as well).

More correctly reconstruct the on-disk state at every checkpoint, rather
than relying on the entire state at the point of wrapping to be accurate
(that is only true the first time we wrap). Add a "make abort" target to
make rerunning the test more convenient when it has failed and we're done
analyzing the failure.
 1.1 17-Apr-2006  perseant Introduce two fcntl calls that freeze the filesystem right at the point
where segment 0 is being considered for writing. This allows for automated
checkpoint vailidity scanning, and could be used (in conjunction with the
existing LFCNREWIND) for e.g. snapshot dumps as well.

Include a regression test that does such scanning.

When writing the Ifile, loop through the dirty block list three times to
make sure that the checkpoint is always consistent (the first and second
times the Ifile blocks can cross a segment boundary; not so the third time
unless the segments are very small). Discovered by using the aforementioned
regression test.
 1.5.18.1 18-May-2008  yamt sync with head.
 1.7 28-Apr-2008  martin Remove clause 3 and 4 from TNF licenses
 1.6 21-Jul-2006  perseant branches: 1.6.18;
Include testing of the roll-forward agent, when recreating the filesystem
partial-segment by partial-segment. Each checkpoint should pass fsck_lfs -n
without errors; the results of fsck_lfs -p on non-checkpoints should also
pass fsck_lfs -n without errors.
 1.5 05-May-2006  perseant Tabify.
 1.4 05-May-2006  perseant Allow the user to specify a file size in the ckckp regression test, including
the value zero (filling the filesystem with directories and empty file
inodes).
 1.3 01-May-2006  perseant Remember to empty the filesystem between iterations, otherwise all
iterations after the first are no-ops.
 1.2 27-Apr-2006  perseant Be a little more careful about what we copy into the working file when;
this takes care of another class of false positives. Add copyright
assignments.
 1.1 17-Apr-2006  perseant Introduce two fcntl calls that freeze the filesystem right at the point
where segment 0 is being considered for writing. This allows for automated
checkpoint vailidity scanning, and could be used (in conjunction with the
existing LFCNREWIND) for e.g. snapshot dumps as well.

Include a regression test that does such scanning.

When writing the Ifile, loop through the dirty block list three times to
make sure that the checkpoint is always consistent (the first and second
times the Ifile blocks can cross a segment boundary; not so the third time
unless the segments are very small). Discovered by using the aforementioned
regression test.
 1.6.18.1 18-May-2008  yamt sync with head.
 1.2 24-Jun-2006  perseant Change LFCNWRAP{STOP,GO} to make them more suitable for snapshotting; in
particular, the caller can now choose whether to wait for the condition
to be met, and if the caller of LFCNWRAPSTOP dies or otherwise closes
the descriptor, the filesystem is started again. Updated the ckckp
regression test to use the new semantics.

dump_lfs(8) now uses the fcntls to implement LFS-style snapshotting through
the -X flag, addressing PR#33457 albeit not using fss(4). Fixed a couple
other problems with dump_lfs that manifested themselves during testing.
 1.1 22-Apr-2006  perseant Regression test improvements:

Move the stop for LFCNWRAPSTOP to the point at which writing at segment 0
is really about to commence, since this is what the test expects (and
incidentally what a snapshotting utility wants as well).

More correctly reconstruct the on-disk state at every checkpoint, rather
than relying on the entire state at the point of wrapping to be accurate
(that is only true the first time we wrap). Add a "make abort" target to
make rerunning the test more convenient when it has failed and we're done
analyzing the failure.
 1.4 21-Jul-2006  perseant Include testing of the roll-forward agent, when recreating the filesystem
partial-segment by partial-segment. Each checkpoint should pass fsck_lfs -n
without errors; the results of fsck_lfs -p on non-checkpoints should also
pass fsck_lfs -n without errors.
 1.3 05-May-2006  perseant Allow the user to specify a file size in the ckckp regression test, including
the value zero (filling the filesystem with directories and empty file
inodes).
 1.2 22-Apr-2006  perseant Regression test improvements:

Move the stop for LFCNWRAPSTOP to the point at which writing at segment 0
is really about to commence, since this is what the test expects (and
incidentally what a snapshotting utility wants as well).

More correctly reconstruct the on-disk state at every checkpoint, rather
than relying on the entire state at the point of wrapping to be accurate
(that is only true the first time we wrap). Add a "make abort" target to
make rerunning the test more convenient when it has failed and we're done
analyzing the failure.
 1.1 17-Apr-2006  perseant Introduce two fcntl calls that freeze the filesystem right at the point
where segment 0 is being considered for writing. This allows for automated
checkpoint vailidity scanning, and could be used (in conjunction with the
existing LFCNREWIND) for e.g. snapshot dumps as well.

Include a regression test that does such scanning.

When writing the Ifile, loop through the dirty block list three times to
make sure that the checkpoint is always consistent (the first and second
times the Ifile blocks can cross a segment boundary; not so the third time
unless the segments are very small). Discovered by using the aforementioned
regression test.
 1.4 26-Feb-2005  perseant Various minor LFS improvements:

* Extend the lfs library from fsck_lfs(8) so that it can be used with a
not-yet-existent LFS. Make newfs_lfs(8) use this library, so it can
create LFSs whose Ifile is larger than one segment.
* Make newfs_lfs(8) use strsuftoi64() for its arguments, a la newfs(8).
* Make fsck_lfs(8) respect the "file system is clean" flag.
* Don't let fsck_lfs(8) think it has dirty blocks when invoked with the
-n flag.
 1.3 03-Feb-2003  perseant branches: 1.3.4;
Break out fsck function; add rename hard link test; change small files
test to provoke the cleaner into running as well.
 1.2 29-Jan-2003  perseant Make the test a little less demanding (write 800k files instead of 1600k).
 1.1 29-Jan-2003  perseant Regression test to ensure that (1) newfs_lfs and fsck_lfs agree about
what makes up a good filesystem; and that (2) the kernel and fsck_lfs
also agree. This test, like the 9994 test and like the FFS endianness
test, is not included in the main "make regress".
 1.3.4.1 10-May-2005  riz Pull up the following revisions (requested by perseant in ticket #1281):

1.8 sys/ufs/lfs/TODO
1.75 sys/ufs/lfs/lfs.h (via patch)
1.74 sys/ufs/lfs/lfs_alloc.c (via patch)
1.49, 1.51 sys/ufs/lfs/lfs_balloc.c (1.51 via patch)
1.78 sys/ufs/lfs/lfs_bio.c
1.62 sys/ufs/lfs/lfs_extern.h (via patch)
1.156 sys/ufs/lfs/lfs_segment.c (via patch)
1.48 sys/ufs/lfs/lfs_subr.c
1.101 sys/ufs/lfs/lfs_syscalls.c
1.163 sys/ufs/lfs/lfs_vfsops.c (via patch)
1.134 sys/ufs/lfs/lfs_vnops.c (via patch)
1.61 sys/ufs/ufs/ufs_readwrite.c (via patch)

1.20 libexec/lfs_cleanerd/clean.h (via patch)
1.52 libexec/lfs_cleanerd/cleanerd.c (via patch)
1.41 libexec/lfs_cleanerd/library.c (via patch)

1.4 regress/sys/fs/lfs/newfs_fsck/Makefile
1.2 regress/sys/fs/lfs/newfs_fsck/mkfs_mount
1.2 regress/sys/fs/lfs/newfs_fsck/smallfiles
1.3 sbin/fsck_lfs/bufcache.c
1.3 sbin/fsck_lfs/bufcache.h
1.3 sbin/fsck_lfs/lfs.h
1.8 sbin/fsck_lfs/lfs.c (via patch)
1.8 sbin/fsck_lfs/pass3.c (via patch)
1.18 sbin/fsck_lfs/pass0.c (via patch)
1.18 sbin/fsck_lfs/utilities.c (via patch)
1.7 sbin/fsck_lfs/segwrite.c
1.19 sbin/fsck_lfs/setup.c (via patch)
1.3 sbin/newfs_lfs/Makefile
0 sbin/newfs_lfs/lfs.c (yes, remove it)
1.1 sbin/newfs_lfs/make_lfs.c
1.15 sbin/newfs_lfs/newfs.c (via patch)

Various minor LFS improvements.

Kernel:

* Note when lfs_putpages(9) thinks it is not going to be writing any
pages before calling genfs_putpages(9). This prevents a situation in
which blocks can be queued for writing without a segment header.
* Correct computation of NRESERVE(), though it is still a gross
overestimate in most cases. Note that if NRESERVE() is too high, it
may be impossible to create files on the filesystem. We catch this
case on filesystem mount and refuse to mount r/w.
* Allow filesystems to be mounted whose block size is == MAXBSIZE.
* Somewhere along the line, ufs_bmaparray(9) started mangling UNWRITTEN
entries in indirect blocks again, triggering a failed assertion "daddr
<= LFS_MAX_DADDR". Explicitly convert to and from int32_t to correct
this. Should fix PR #29045.
* Add a high-water mark for the number of dirty pages any given LFS can
hold before triggering a flush. This is settable by sysctl, but off
(zero) by default.
* Be more careful about the MAX_BYTES and MAX_BUFS computations so we
shouldn't see "please increase to at least zero" messages.
* Note that VBLK and VCHR vnodes can have nonzero values in di_db[0]
even though their v_size == 0. Don't panic when we see this.
Fixes PR #26680.
* Change lfs_bfree to a signed quantity. The manner in which it is
processed before being passed to the cleaner means that sometimes it
may drop below zero, and the cleaner must be aware of this.
* Never report bfree < 0 (or higher than lfs_dsize) through
lfs_statfs(9). This prevents df(1) from ever telling us that our full
filesystems have 16TB free.
* Account space allocated through lfs_balloc(9) that does not have
associated buffer headers, so that the pagedaemon doesn't run us out
of segments.
* Return ENOSPC from lfs_balloc(9) when bfree drops to zero.
* Address a deadlock in lfs_bmapv/lfs_markv when the filesystem is being
unmounted. Because vfs_busy() is a shared lock, and
lfs_bmapv/lfs_markv mark the filesystem vfs_busy(), the cleaner can be
holding the lock that umount() is blocking on, then try to vfs_busy()
again in getnewvnode().

cleaner:

* Adapt lfs_cleanerd to use the fcntl call to get the Ifile filehandle,
so it need not be in the namespace.
* Make lfs_cleanerd be more careful when there are very few available
segments.
* Make lfs_cleanerd less verbose when the filesystem is unmounted.

newfs_lfs, fsck_lfs, and regression:

* Extend the lfs library from fsck_lfs(8) so that it can be used with a
not-yet-existent LFS. Make newfs_lfs(8) use this library, so it can
create LFSs whose Ifile is larger than one segment. Addresses PR #11110.
* Make newfs_lfs(8) use strsuftoi64() for its arguments, a la newfs(8).
* Make fsck_lfs(8) respect the "file system is clean" flag.
* Don't let fsck_lfs(8) think it has dirty blocks when invoked with the
-n flag.
* Remove the Ifile from the filesystem namespace. The cleaner now uses
a fcntl call on the root inode to find the Ifile filehandle. (As a
side-effect, addresses PR #29144.)
 1.1 29-Jan-2003  perseant Regression test to ensure that (1) newfs_lfs and fsck_lfs agree about
what makes up a good filesystem; and that (2) the kernel and fsck_lfs
also agree. This test, like the 9994 test and like the FFS endianness
test, is not included in the main "make regress".
 1.2 26-Feb-2005  perseant Various minor LFS improvements:

* Extend the lfs library from fsck_lfs(8) so that it can be used with a
not-yet-existent LFS. Make newfs_lfs(8) use this library, so it can
create LFSs whose Ifile is larger than one segment.
* Make newfs_lfs(8) use strsuftoi64() for its arguments, a la newfs(8).
* Make fsck_lfs(8) respect the "file system is clean" flag.
* Don't let fsck_lfs(8) think it has dirty blocks when invoked with the
-n flag.
 1.1 03-Feb-2003  perseant branches: 1.1.4;
Break out fsck function; add rename hard link test; change small files
test to provoke the cleaner into running as well.
 1.1.4.1 10-May-2005  riz Pull up the following revisions (requested by perseant in ticket #1281):

1.8 sys/ufs/lfs/TODO
1.75 sys/ufs/lfs/lfs.h (via patch)
1.74 sys/ufs/lfs/lfs_alloc.c (via patch)
1.49, 1.51 sys/ufs/lfs/lfs_balloc.c (1.51 via patch)
1.78 sys/ufs/lfs/lfs_bio.c
1.62 sys/ufs/lfs/lfs_extern.h (via patch)
1.156 sys/ufs/lfs/lfs_segment.c (via patch)
1.48 sys/ufs/lfs/lfs_subr.c
1.101 sys/ufs/lfs/lfs_syscalls.c
1.163 sys/ufs/lfs/lfs_vfsops.c (via patch)
1.134 sys/ufs/lfs/lfs_vnops.c (via patch)
1.61 sys/ufs/ufs/ufs_readwrite.c (via patch)

1.20 libexec/lfs_cleanerd/clean.h (via patch)
1.52 libexec/lfs_cleanerd/cleanerd.c (via patch)
1.41 libexec/lfs_cleanerd/library.c (via patch)

1.4 regress/sys/fs/lfs/newfs_fsck/Makefile
1.2 regress/sys/fs/lfs/newfs_fsck/mkfs_mount
1.2 regress/sys/fs/lfs/newfs_fsck/smallfiles
1.3 sbin/fsck_lfs/bufcache.c
1.3 sbin/fsck_lfs/bufcache.h
1.3 sbin/fsck_lfs/lfs.h
1.8 sbin/fsck_lfs/lfs.c (via patch)
1.8 sbin/fsck_lfs/pass3.c (via patch)
1.18 sbin/fsck_lfs/pass0.c (via patch)
1.18 sbin/fsck_lfs/utilities.c (via patch)
1.7 sbin/fsck_lfs/segwrite.c
1.19 sbin/fsck_lfs/setup.c (via patch)
1.3 sbin/newfs_lfs/Makefile
0 sbin/newfs_lfs/lfs.c (yes, remove it)
1.1 sbin/newfs_lfs/make_lfs.c
1.15 sbin/newfs_lfs/newfs.c (via patch)

Various minor LFS improvements.

Kernel:

* Note when lfs_putpages(9) thinks it is not going to be writing any
pages before calling genfs_putpages(9). This prevents a situation in
which blocks can be queued for writing without a segment header.
* Correct computation of NRESERVE(), though it is still a gross
overestimate in most cases. Note that if NRESERVE() is too high, it
may be impossible to create files on the filesystem. We catch this
case on filesystem mount and refuse to mount r/w.
* Allow filesystems to be mounted whose block size is == MAXBSIZE.
* Somewhere along the line, ufs_bmaparray(9) started mangling UNWRITTEN
entries in indirect blocks again, triggering a failed assertion "daddr
<= LFS_MAX_DADDR". Explicitly convert to and from int32_t to correct
this. Should fix PR #29045.
* Add a high-water mark for the number of dirty pages any given LFS can
hold before triggering a flush. This is settable by sysctl, but off
(zero) by default.
* Be more careful about the MAX_BYTES and MAX_BUFS computations so we
shouldn't see "please increase to at least zero" messages.
* Note that VBLK and VCHR vnodes can have nonzero values in di_db[0]
even though their v_size == 0. Don't panic when we see this.
Fixes PR #26680.
* Change lfs_bfree to a signed quantity. The manner in which it is
processed before being passed to the cleaner means that sometimes it
may drop below zero, and the cleaner must be aware of this.
* Never report bfree < 0 (or higher than lfs_dsize) through
lfs_statfs(9). This prevents df(1) from ever telling us that our full
filesystems have 16TB free.
* Account space allocated through lfs_balloc(9) that does not have
associated buffer headers, so that the pagedaemon doesn't run us out
of segments.
* Return ENOSPC from lfs_balloc(9) when bfree drops to zero.
* Address a deadlock in lfs_bmapv/lfs_markv when the filesystem is being
unmounted. Because vfs_busy() is a shared lock, and
lfs_bmapv/lfs_markv mark the filesystem vfs_busy(), the cleaner can be
holding the lock that umount() is blocking on, then try to vfs_busy()
again in getnewvnode().

cleaner:

* Adapt lfs_cleanerd to use the fcntl call to get the Ifile filehandle,
so it need not be in the namespace.
* Make lfs_cleanerd be more careful when there are very few available
segments.
* Make lfs_cleanerd less verbose when the filesystem is unmounted.

newfs_lfs, fsck_lfs, and regression:

* Extend the lfs library from fsck_lfs(8) so that it can be used with a
not-yet-existent LFS. Make newfs_lfs(8) use this library, so it can
create LFSs whose Ifile is larger than one segment. Addresses PR #11110.
* Make newfs_lfs(8) use strsuftoi64() for its arguments, a la newfs(8).
* Make fsck_lfs(8) respect the "file system is clean" flag.
* Don't let fsck_lfs(8) think it has dirty blocks when invoked with the
-n flag.
* Remove the Ifile from the filesystem namespace. The cleaner now uses
a fcntl call on the root inode to find the Ifile filehandle. (As a
side-effect, addresses PR #29144.)
 1.2 26-Feb-2005  perseant Various minor LFS improvements:

* Extend the lfs library from fsck_lfs(8) so that it can be used with a
not-yet-existent LFS. Make newfs_lfs(8) use this library, so it can
create LFSs whose Ifile is larger than one segment.
* Make newfs_lfs(8) use strsuftoi64() for its arguments, a la newfs(8).
* Make fsck_lfs(8) respect the "file system is clean" flag.
* Don't let fsck_lfs(8) think it has dirty blocks when invoked with the
-n flag.
 1.1 03-Feb-2003  perseant branches: 1.1.4;
Break out fsck function; add rename hard link test; change small files
test to provoke the cleaner into running as well.
 1.1.4.1 10-May-2005  riz Pull up the following revisions (requested by perseant in ticket #1281):

1.8 sys/ufs/lfs/TODO
1.75 sys/ufs/lfs/lfs.h (via patch)
1.74 sys/ufs/lfs/lfs_alloc.c (via patch)
1.49, 1.51 sys/ufs/lfs/lfs_balloc.c (1.51 via patch)
1.78 sys/ufs/lfs/lfs_bio.c
1.62 sys/ufs/lfs/lfs_extern.h (via patch)
1.156 sys/ufs/lfs/lfs_segment.c (via patch)
1.48 sys/ufs/lfs/lfs_subr.c
1.101 sys/ufs/lfs/lfs_syscalls.c
1.163 sys/ufs/lfs/lfs_vfsops.c (via patch)
1.134 sys/ufs/lfs/lfs_vnops.c (via patch)
1.61 sys/ufs/ufs/ufs_readwrite.c (via patch)

1.20 libexec/lfs_cleanerd/clean.h (via patch)
1.52 libexec/lfs_cleanerd/cleanerd.c (via patch)
1.41 libexec/lfs_cleanerd/library.c (via patch)

1.4 regress/sys/fs/lfs/newfs_fsck/Makefile
1.2 regress/sys/fs/lfs/newfs_fsck/mkfs_mount
1.2 regress/sys/fs/lfs/newfs_fsck/smallfiles
1.3 sbin/fsck_lfs/bufcache.c
1.3 sbin/fsck_lfs/bufcache.h
1.3 sbin/fsck_lfs/lfs.h
1.8 sbin/fsck_lfs/lfs.c (via patch)
1.8 sbin/fsck_lfs/pass3.c (via patch)
1.18 sbin/fsck_lfs/pass0.c (via patch)
1.18 sbin/fsck_lfs/utilities.c (via patch)
1.7 sbin/fsck_lfs/segwrite.c
1.19 sbin/fsck_lfs/setup.c (via patch)
1.3 sbin/newfs_lfs/Makefile
0 sbin/newfs_lfs/lfs.c (yes, remove it)
1.1 sbin/newfs_lfs/make_lfs.c
1.15 sbin/newfs_lfs/newfs.c (via patch)

Various minor LFS improvements.

Kernel:

* Note when lfs_putpages(9) thinks it is not going to be writing any
pages before calling genfs_putpages(9). This prevents a situation in
which blocks can be queued for writing without a segment header.
* Correct computation of NRESERVE(), though it is still a gross
overestimate in most cases. Note that if NRESERVE() is too high, it
may be impossible to create files on the filesystem. We catch this
case on filesystem mount and refuse to mount r/w.
* Allow filesystems to be mounted whose block size is == MAXBSIZE.
* Somewhere along the line, ufs_bmaparray(9) started mangling UNWRITTEN
entries in indirect blocks again, triggering a failed assertion "daddr
<= LFS_MAX_DADDR". Explicitly convert to and from int32_t to correct
this. Should fix PR #29045.
* Add a high-water mark for the number of dirty pages any given LFS can
hold before triggering a flush. This is settable by sysctl, but off
(zero) by default.
* Be more careful about the MAX_BYTES and MAX_BUFS computations so we
shouldn't see "please increase to at least zero" messages.
* Note that VBLK and VCHR vnodes can have nonzero values in di_db[0]
even though their v_size == 0. Don't panic when we see this.
Fixes PR #26680.
* Change lfs_bfree to a signed quantity. The manner in which it is
processed before being passed to the cleaner means that sometimes it
may drop below zero, and the cleaner must be aware of this.
* Never report bfree < 0 (or higher than lfs_dsize) through
lfs_statfs(9). This prevents df(1) from ever telling us that our full
filesystems have 16TB free.
* Account space allocated through lfs_balloc(9) that does not have
associated buffer headers, so that the pagedaemon doesn't run us out
of segments.
* Return ENOSPC from lfs_balloc(9) when bfree drops to zero.
* Address a deadlock in lfs_bmapv/lfs_markv when the filesystem is being
unmounted. Because vfs_busy() is a shared lock, and
lfs_bmapv/lfs_markv mark the filesystem vfs_busy(), the cleaner can be
holding the lock that umount() is blocking on, then try to vfs_busy()
again in getnewvnode().

cleaner:

* Adapt lfs_cleanerd to use the fcntl call to get the Ifile filehandle,
so it need not be in the namespace.
* Make lfs_cleanerd be more careful when there are very few available
segments.
* Make lfs_cleanerd less verbose when the filesystem is unmounted.

newfs_lfs, fsck_lfs, and regression:

* Extend the lfs library from fsck_lfs(8) so that it can be used with a
not-yet-existent LFS. Make newfs_lfs(8) use this library, so it can
create LFSs whose Ifile is larger than one segment. Addresses PR #11110.
* Make newfs_lfs(8) use strsuftoi64() for its arguments, a la newfs(8).
* Make fsck_lfs(8) respect the "file system is clean" flag.
* Don't let fsck_lfs(8) think it has dirty blocks when invoked with the
-n flag.
* Remove the Ifile from the filesystem namespace. The cleaner now uses
a fcntl call on the root inode to find the Ifile filehandle. (As a
side-effect, addresses PR #29144.)

RSS XML Feed