Commit Graph

328 Commits

Author SHA1 Message Date
Xin LI
d0d444da07 Remove two files that are not needed by FreeBSD.
Approved by:	pjd
MFC after:	2 weeks
2010-02-05 23:17:59 +00:00
Pawel Jakub Dawidek
9d3f36a309 Open provider for writting when we find the right one. Opening too much
providers for writing provokes huge traffic related to taste events send
by GEOM on close. This can lead to various problems with opening GEOM
providers that are created on top of other GEOM providers.

Reorted by:	Kurt Touet <ktouet@gmail.com>, mr
Tested by:	mr, Baginski Darren <kickbsd@ya.ru>
MFC after:	2 weeks
2010-02-04 21:11:44 +00:00
Xin LI
63243c5c71 On FreeBSD, time_t is 64-bit for all platforms except i386 and powerpc,
where the type is 32-bit.  ZFS can handle 64-bit timestamp internally
but zfs_setattr() would check if the time value can fit, we change the
checking macros to match 64-bit timestamp if the platform supports it.

This change has some downsides like, while you can import zfs on 32-bit
platforms, the timestamp would overflow if they are out of the range.

This fixes the Y2.038K issue on platforms using 64-bit timestamps.

Reviewed by:	pjd
MFC after:	1 month
2010-01-25 07:52:54 +00:00
Xin LI
51b1ec310c Report ZFS filesystem version instead of the zpool version when we say it.
Reported by:	Yuri Pankov (on -fs@)
Submitted by:	delphij
Approved by:	pjd
MFC after:	1 week
2010-01-11 23:15:11 +00:00
Xin LI
017b01f662 Re-apply onnv-gate revisions 7994 and 8986 (corresponds to FreeBSD
revision 200726 and 200727).  It looks like that the two revisions
were not applied in the right sequence, I found this when comparing
with the OpenSolaris code.

MFC after:	3 days
Reviewed by:	mm@
2010-01-07 20:10:22 +00:00
Xin LI
03ec6213ee Instead of assuming all vdevs are healthy, check the newest vdev label
for each vdev's status.  Booting from a degraded vdev should now be
more robust.

Submitted by:	Matt Reimer <mattjreimer at gmail.com>
Sponsored by:	VPOP Technologies, Inc.
MFC after:	2 weeks
2010-01-06 23:09:23 +00:00
Pawel Jakub Dawidek
49335ba853 Teach the (gpt)zfsboot and zfsloader raidz code to use its buffers
more efficiently.

Before this patch, in the worst case memory use would increase
exponentially on the number of drives in the raidz vdev.

Submitted by:	Matt Reimer <mattjreimer@gmail.com>
Sponsored by:	VPOP Technologies, Inc.
Silence from:	dfr
2010-01-06 22:39:40 +00:00
Xin LI
1ee5de4482 Reduce diff against OpenSolaris - move Giant acquire/release to
zfs_znode.c.  As a side effect this also eliminates two potential
Giant leaks.

Approved by:	pjd
MFC after:	1 month
2010-01-02 23:38:03 +00:00
Xin LI
9189129097 Apply OpenSolaris revision 8012 which brings our zpool to version 14,
making it possible for zpools created on OpenSolaris 2009.06 be used
on FreeBSD.

PR:		kern/141800
Submitted by:	mm
Reviewed by:	pjd, trasz
Obtained from:	OpenSolaris
MFC after:	2 weeks
2009-12-28 22:15:11 +00:00
Xin LI
dd0c145752 Apply fix for Solaris bug 6462803: zfs snapshot -r failed because
filesystem was busy
(onnv revision 8989)

Submitted by:	mm
Approved by:	pjd
Obtained from:	OpenSolaris
MFC after:	2 weeks
2009-12-19 11:49:20 +00:00
Xin LI
24a41d7ec6 Apply fix for Solaris bug 6801979: zfs recv can fail with E2BIG
(onnv revision 8986)

Requested by:	mm
Submitted by:	pjd
Obtained from:	OpenSolaris
MFC after:	2 weeks
2009-12-19 11:47:22 +00:00
Xin LI
775f802393 Apply fix Solaris bug 6462803 zfs snapshot -r failed because
filesystem was busy.

Submitted by:	mm
Approved by:	pjd
MFC after:	2 weeks
2009-12-19 11:43:39 +00:00
Konstantin Belousov
88f2d72947 Change VOP_FSYNC for zfs vnode from VOP_PANIC to zfs_freebsd_fsync(),
both to not panic when fsync(2) is called for fifo on zfs
filedescriptor, and to actually fsync fifo inode to permanent storage.

PR:	kern/141177
Reviewed by:	pjd
MFC after:	1 week
2009-12-05 20:36:42 +00:00
Pawel Jakub Dawidek
dfb903e852 We have to eventually look for provider without checking guid as this is need
for attaching when there is no metadata yet.

Before r200125 the order of looking for providers was wrong. It was:
1. Find provider by name.
2. Find provider by guid.
3. Find provider by name and guid.

Where it should have been:
1. Find provider by name and guid.
2. Find provider by guid.
3. Find provider by name.

MFC after:	1 week
2009-12-05 20:16:28 +00:00
Pawel Jakub Dawidek
6468cb2ce0 Fix deadlock when ZVOLs are present and we are replacing dead component or
calling scrub when pool is in a degraded state. It will try to taste ZVOLs,
which will lead to deadlock, as ZVOL will try to acquire the same locks as
replace/scrub is holding already.

We can't simply skip provider based on their GEOM class, because ZVOL can have
providers build on top of it and we need to skip those as well.

We do it by asking for ZFS::iszvol attribute. Any ZVOL-based provider will give
us positive answer and we have to skip those providers.

This way we remove possibility to create ZFS pools on top of ZVOLs, but it is
not very useful anyway.

I believe deadlock is still possible in some very complex situations like when
we have MD provider on top of UFS file on top of ZVOL. When we try to replace
dead component in the pool mentioned ZVOL is based on, there might be a
deadlock when ZFS will try to taste MD provider. There is no easy way to detect
that, but it isn't very common.

MFC after:	1 week
2009-12-05 14:33:11 +00:00
Pawel Jakub Dawidek
ccba826977 Always check guid when opening by path, because we may end up with provider
that does have the same name, but only by accident.

MFC after:	1 week
2009-12-05 14:24:22 +00:00
Pawel Jakub Dawidek
29c8c85594 Avoid using additional variable for storing an error if we are not going
to do anything with it.
2009-12-05 14:21:42 +00:00
Paul Saab
e44920da1a Correct another case of not doing 64bit math. This allows mine and
other raidz2 volumes to boot.

Submitted by:	Matt Reimer <mattjreimer@gmail.com>
2009-11-13 02:50:50 +00:00
Pawel Jakub Dawidek
fd9ee28bfc Be careful which vattr fields are set during setattr replay.
Without this fix strange things can appear after unclean shutdown like
files with mode set to 07777.

Reported by:	des
MFC after:	3 days
2009-11-10 22:27:33 +00:00
Pawel Jakub Dawidek
56697614cc Avoid passing invalid mountpoint to getnewvnode().
Reported by:	rwatson
Tested by:	rwatson
MFC after:	3 days
2009-11-10 22:25:46 +00:00
Pawel Jakub Dawidek
fd66267ffb - zfs_zaccess() can handle VAPPEND too, so map V_APPEND to VAPPEND and call
zfs_access() instead of vaccess() in this case as well.
- If VADMIN is specified with another V* flag (unlikely) call both
  zfs_access() and vaccess() after spliting V* flags.

This fixes "dirtying snapshot!" panic.

PR:		kern/139806
Reported by:	Carl Chave <carl@chave.us>
In co-operation with:	jh
MFC after:	3 days
2009-10-30 23:33:06 +00:00
Robert Noland
14c436e101 Correct some issues with zfs boot.
- Teach it to read gang blocks. (essentially untested)
   If you see "ZFS: gang block detected!", please let
   me know, so we can either remove the printf if it
   works, or fix it if it doesn't.

 - If multiple partitions exist on a disk, probe them all.
   We also need to reset dsk->start to 0 to read the right
   sector here.

 - With GPT, we can have 128 partitions.

 - If the bootfs property has ever been set on a pool
   it seems that it never goes away.  zpool won't allow
   you to add to the pool with the bootfs property set.
   However, if you clear the property back to default
   we end up getting 0 for the object number and read
   a bogus block pointer and fail to boot.

 - Fix some error printfs. The printf in the loader is
   only capable of c,s and u formats.

 - Teach printf how to display %llu

Reviewed by:	dfr, jhb
MFC after:	2 weeks
2009-10-23 18:44:53 +00:00
Pawel Jakub Dawidek
c217b20ef6 Allow file system owner to modify system flags if securelevel permits.
MFC after:	3 days
2009-10-08 16:05:17 +00:00
Pawel Jakub Dawidek
68c53ef849 File system owner is when uid matches and jail matches.
MFC after:	3 days
2009-10-08 16:03:19 +00:00
Pawel Jakub Dawidek
3a6c0cbf26 On FreeBSD it is enough to report provider removal when orphan event is
received, we don't have to do it on every ENXIO error in I/O path.
Solaris has no GEOM so they have to handle it in a less clean way.

MFC after:	3 days
2009-10-07 20:56:15 +00:00
Pawel Jakub Dawidek
2ada529a14 Fix white-spaces.
MFC after:	3 days
2009-10-07 20:54:07 +00:00
Pawel Jakub Dawidek
c0103003c0 Fix situation where Mac OS X NFS client creates a file and when it tries
to set ownership and mode in the same setattr operation, the mode was
overwritten by secpolicy_vnode_setattr().

PR:		kern/118320
Submitted by:	Mark Thompson <info-gentoo@mark.thompson.bz>
MFC after:	3 days
2009-10-07 12:38:19 +00:00
Kip Macy
e6b112e274 Prevent paging pressure from draining arc too much
- always drain arc if above arc_c_max - never drain arc if arc is below arc_c_max

MFC after:	3 days
2009-10-06 21:40:50 +00:00
Xin LI
6f62807611 Return EOPNOTSUPP instead of EINVAL when doing chflags(2) over an old
format ZFS, as defined in the manual page.

Submitted by:	pjd (response of my original patch but bugs are mine)
MFC after:	3 days
2009-10-01 18:58:26 +00:00
Pawel Jakub Dawidek
ab711589df Handle cases where virtual (GFS) vnodes are referenced when doing forced
unmount. In that case we cannot depend on the proper order of invalidating
vnodes, so we have to free resources when we have a chance.

PR:		kern/139062
Reported by:	trasz
MFC after:	3 days
2009-09-26 00:10:45 +00:00
Pawel Jakub Dawidek
a0b238644a On lookup error VFS expects *vpp to be set to NULL, be sure to do that.
MFC after:	3 days
2009-09-26 00:08:44 +00:00
Pawel Jakub Dawidek
a99aaff645 Use traverse() function to find and return mount point's vnode instead of
covered vnode when snapshot is already mounted.

MFC after:	3 days
2009-09-26 00:07:14 +00:00
Pawel Jakub Dawidek
1aba32d9b4 - Don't depend on value returned by gfs_*_inactive(), it doesn't work
well with forced unmounts when GFS vnodes are referenced.
- Make other preparations to GFS for forced unmounts.

PR:		kern/139062
Reported by:	trasz
MFC after:	3 days
2009-09-26 00:04:30 +00:00
Pawel Jakub Dawidek
86758476b4 Switch to fletcher4 as the default checksum algorithm. Fletcher2 was proven to
be a bit weak and OpenSolaris also switched to fletcher4.

PR:		kern/139072
Reported by:	Daniel Grund <bugs@dgrund.de>
MFC after:	3 days
2009-09-25 18:19:50 +00:00
Pawel Jakub Dawidek
ad8294cf98 Before calling vflush(FORCECLOSE) mark file system as unmounted so the
following vnops will fail. This is very important, because without this change
vnode could be reclaimed at any point, even if we increased usecount. The only
way to ensure that vnode won't be reclaimed was to lock it, which would be very
hard to do in ZFS without changing a lot of code. With this change simply
increasing usecount is enough to be sure vnode won't be reclaimed from under
us. To be precise it can still be reclaimed but we won't be able to see it,
because every try to enter ZFS through VFS will result in EIO.

The only function that cannot return EIO, because it is needed for vflush() is
zfs_root(). Introduce ZFS_ENTER_NOERROR() macro that only locks
z_teardown_lock and never returns EIO.

MFC after:	3 days
2009-09-24 15:56:26 +00:00
Pawel Jakub Dawidek
ab9bbf4a2b Close race in zfs_zget(). We have to increase usecount first and then
check for VI_DOOMED flag. Before this change vnode could be reclaimed
between checking for the flag and increasing usecount.

MFC after:	3 days
2009-09-24 15:49:15 +00:00
Edward Tomasz Napierala
c40502ccd0 In VOP_SETACL(9) and VOP_GETACL(9), specifying wrong ACL type should result
in EINVAL, not EOPNOTSUPP.
2009-09-23 15:09:34 +00:00
Pawel Jakub Dawidek
eb03c3cdfb Restore BSD behaviour - when creating new directory entry use parent directory
gid to set group ownership and not process gid.

This was overlooked during v6 -> v13 switch.

PR:		kern/139076
Reported by:	Sean Winn <sean@gothic.net.au>
MFC after:	3 days
2009-09-23 09:18:16 +00:00
Pawel Jakub Dawidek
c4be11d7fc Purge namecache in the same place OpenSolaris does. 2009-09-20 13:28:29 +00:00
Pawel Jakub Dawidek
5469543c92 Purge file system namecache when receiving incremental stream and rolling back
to it.

MFC after:	3 days
2009-09-17 15:14:28 +00:00
Pawel Jakub Dawidek
3282c51713 Purge namecache for the file system being rolled back, so it doesn't point at
invalid vnodes after the rollback resulting in EIO errors when trying to access
files which are in the namecache.

Reported by:	des
MFC after:	3 days
2009-09-17 14:58:21 +00:00
Pawel Jakub Dawidek
95f08808b6 Forced unmounts work just fine in my tests under heavy load. There might
still be a problem, but it isn't worth a warning.
2009-09-15 11:42:08 +00:00
Pawel Jakub Dawidek
a4e6b460d3 We believe ZFS is ready for production use. Remove a warning about it being
experimental. :)
2009-09-15 11:34:53 +00:00
Pawel Jakub Dawidek
63e1d3df27 - Mount ZFS snapshots with MNT_IGNORE flag, so they are not visible in regular
df(1) and mount(8) output. This is a bit smilar to OpenSolaris and follows
  ZFS route of not listing snapshots by default with 'zfs list' command.
- Add UPDATING entry to note that ZFS snapshots are no longer visible in
  mount(8) and df(1) output by default.

Reviewed by:	kib
MFC after:	3 days
2009-09-14 21:10:40 +00:00
Pawel Jakub Dawidek
85c171b2e1 Support both case: when snapshot is already mounted and when it is not yet
mounted.

MFC after:	3 days
2009-09-13 21:40:36 +00:00
Pawel Jakub Dawidek
8a2c4db0fe Add missing \n.
Reported by:	marck
2009-09-13 17:30:56 +00:00
Pawel Jakub Dawidek
7746b6461d Work-around READDIRPLUS problem with .zfs/ and .zfs/snapshot/ directories
by just returning EOPNOTSUPP. This will allow NFS server to fall back to
regular READDIR.

Note that converting inode number to snapshot's vnode is expensive operation.
Snapshots are stored in AVL tree, but based on their names, not inode numbers,
so to convert inode to snapshot vnode we have to interate over all snalshots.

This is not a problem in OpenSolaris, because in their READDIRPLUS
implementation they use VOP_LOOKUP() on d_name, instead of VFS_VGET() on
d_fileno as we do.

PR:		kern/125149
Reported by:	Weldon Godfrey <wgodfrey@ena.com>
Analysis by:	Jaakko Heinonen <jh@saunalahti.fi>
MFC after:	3 days
2009-09-13 16:05:20 +00:00
Pawel Jakub Dawidek
7b4a12379b When zfs.ko is compiled with debug, make sure that znode and vnode point at
each other.

MFC after:	3 days
2009-09-13 10:33:51 +00:00
Pawel Jakub Dawidek
33a0ef82f2 Extend scope of the z_teardown_lock lock for consistency and "just in case".
MFC after:	3 days
2009-09-13 10:29:51 +00:00
Pawel Jakub Dawidek
7dae3c4faf Be sure not to overflow struct fid.
MFC after:	3 days
2009-09-13 10:25:33 +00:00