Commit Graph

709 Commits

Author SHA1 Message Date
Linus Torvalds
541010e4b8 Merge branch 'locks' of git://linux-nfs.org/~bfields/linux
* 'locks' of git://linux-nfs.org/~bfields/linux:
  nfsd: remove IS_ISMNDLCK macro
  Rework /proc/locks via seq_files and seq_list helpers
  fs/locks.c: use list_for_each_entry() instead of list_for_each()
  NFS: clean up explicit check for mandatory locks
  AFS: clean up explicit check for mandatory locks
  9PFS: clean up explicit check for mandatory locks
  GFS2: clean up explicit check for mandatory locks
  Cleanup macros for distinguishing mandatory locks
  Documentation: move locks.txt in filesystems/
  locks: add warning about mandatory locking races
  Documentation: move mandatory locking documentation to filesystems/
  locks: Fix potential OOPS in generic_setlease()
  Use list_first_entry in locks_wake_up_blocks
  locks: fix flock_lock_file() comment
  Memory shortage can result in inconsistent flocks state
  locks: kill redundant local variable
  locks: reverse order of posix_locks_conflict() arguments
2007-10-15 16:07:40 -07:00
Trond Myklebust
05c88babab NFSv4: Fix a typo in nfs_inode_reclaim_delegation
We were intending to put the previous instance of delegation->cred
before setting a new one.

Thanks to David Howells for spotting this.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-11 15:11:51 -04:00
Pavel Emelyanov
dfad9441be NFS: clean up explicit check for mandatory locks
The __mandatory_lock(inode) macro makes the same check, but makes the code
more readable.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2007-10-09 18:32:46 -04:00
Trond Myklebust
f43bf0bebe NFS: Add a boot parameter to disable 64 bit inode numbers
This boot parameter will allow legacy 32-bit applications which call stat()
to continue to function even if the NFSv3/v4 server uses 64-bit inode
numbers.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:20:52 -04:00
Trond Myklebust
2a3f5fd459 NFS: nfs_refresh_inode should clear cache_validity flags on success
If the cached attributes match the ones supplied in the fattr, then assume
we've revalidated the inode.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:20:50 -04:00
Trond Myklebust
40d2470409 NFS: Fix a connectathon regression in NFSv3 and NFSv4
We're failing basic test6 against Linux servers because they lack a correct
change attribute. The fix is to assume that we always want to invalidate
the readdir caches when we call update_changeattr and/or
nfs_post_op_update_inode on a directory.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:20:47 -04:00
Trond Myklebust
9e08a3c5ae NFS: Use nfs_refresh_inode() in ops that aren't expected to change the inode
nfs_post_op_update_inode() is really only meant to be used if we expect the
inode and its attributes to have changed in some way.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:20:45 -04:00
Trond Myklebust
c7c209730d NFS: Get rid of some obsolete macros
- NFS_READTIME, NFS_CHANGE_ATTR are completely unused.
- Inline the few remaining uses of NFS_ATTRTIMEO, and remove.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:20:23 -04:00
Trond Myklebust
4f48af4584 NFS: Simplify filehandle revalidation
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:20:20 -04:00
Trond Myklebust
9697d2342e NFS: Ensure that nfs_link() returns a hashed dentry
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:20:18 -04:00
Trond Myklebust
a12802cab8 NFS: Be strict about dentry revalidation when doing exclusive create
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:20:16 -04:00
Trond Myklebust
b050aa791f NFS: Don't zap the readdir caches upon error
If necessary, the caches will get zapped under normal revalidation.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:20:13 -04:00
Trond Myklebust
efbb06b7f9 NFS: Remove the redundant nfs_reval_fsid()
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:20:11 -04:00
Trond Myklebust
81c768808c NFSv3: Always use directory post-op attributes in nfs3_proc_lookup
LOOKUP returns the directory post-op attributes whether or not the
operation was successful.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:20:08 -04:00
Trond Myklebust
d75340cc4d NFSv4: Fix nfs_atomic_open() to set the verifier on negative dentries too
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:20:06 -04:00
Trond Myklebust
216d5d0688 NFSv4: Use NFSv2/v3 rules for negative dentries in nfs_open_revalidate
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:20:03 -04:00
Trond Myklebust
0a5ebc1488 NFSv4: Don't revalidate the directory in nfs_atomic_lookup()
Why bother, since the call to nfs4_atomic_open() will do it for us.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:20:01 -04:00
Trond Myklebust
f2c77f4e62 NFS: Optimise nfs_lookup_revalidate()
We don't need to call nfs_revalidate_inode() on the directory if we already
know that the verifiers don't match.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:19:58 -04:00
Trond Myklebust
6d2b296686 NFS: Reset nfsi->last_updated only if the attribute changed
Otherwise set it to nfsi->read_cache_jiffies in order to prevent jiffy
wraparound issues.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:19:55 -04:00
Trond Myklebust
60ccd4ec41 NFS: Remove nfs_begin_data_update/nfs_end_data_update
The lower level routines in fs/nfs/proc.c, fs/nfs/nfs3proc.c and
fs/nfs/nfs4proc.c should already be dealing with the revalidation issues.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:19:53 -04:00
Trond Myklebust
80eb209def NFS: Remove NFS_I(inode)->data_updates
We have no more users...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:19:50 -04:00
Trond Myklebust
a1643a92f6 NFS: NFS_CACHEINV() should not test for nfs_caches_unstable()
The fact that we're in the process of modifying the inode does not mean
that we should not invalidate the attribute and data caches. The defensive
thing is to always invalidate when we're confronted with inode
mtime/ctime or change_attribute updates that we do not immediately
recognise.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:19:48 -04:00
Trond Myklebust
3258b4fa55 NFS: Remove bogus nfs_mark_for_revalidate() in nfs_lookup
The parent of the newly materialised dentry has just been revalidated...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:19:45 -04:00
Trond Myklebust
cf8ba45e05 NFS: don't cache the verifer across ->lookup() calls
If the ->lookup() call causes the directory verifier to change, then there
is still no need to use the old verifier, since our dentry has been
verified.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:19:42 -04:00
Trond Myklebust
7668fdbe9a NFS: nfs_post_op_update_inode don't update cache_change_attribute
If nfs_post_op_update_inode fails because the server didn't return any
attributes, then we let the subsequent inode revalidation update
cache_change_attribute.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09 17:19:37 -04:00