Erez Zadok [Fri, 4 Dec 2009 01:58:43 +0000 (20:58 -0500)]
patch unionfs-remove-unnecessary-lockdep-off-on-in-rename.patch
Erez Zadok [Sun, 8 Nov 2009 23:18:56 +0000 (18:18 -0500)]
Unionfs: unlock lower parent inode correctly on error path
Bug fix: on some errors, lower directory inode may remain locked and hold a
reference. This was in ->create, ->symlink, and ->mknod.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Thu, 3 Dec 2009 23:51:37 +0000 (18:51 -0500)]
Unionfs: make our lower_vm_ops pointer a const, to match VFS
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 6 Jan 2010 04:39:25 +0000 (23:39 -0500)]
VFS: export release_open_intent
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 22 Sep 2009 22:22:19 +0000 (18:22 -0400)]
Unionfs: Release 2.5.3
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 22 Sep 2009 21:27:30 +0000 (17:27 -0400)]
Unionfs: handle an open-unlink-ftruncate sequence
If someone calls open(), then unlink(), then ftruncate() on a file (rare,
but possible), then it's possible for unionfs to get an unlinked inode which
doesn't have an inode->i_sb and its inode->i_ino is zero. Don't oops in
that case.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 22 Sep 2009 21:27:23 +0000 (17:27 -0400)]
Unionfs: fix readonly nfs2/3 permission handling
In unionfs_permission: NFSv2/3 return EACCES on readonly-exported, locally
readonly-mounted file systems, instead of EROFS like other file systems do.
So we have no choice here but to intercept this and ignore it for NFS
branches marked readonly. Specifically, we avoid using NFS's own "broken"
->permission method, and rely on generic_permission() to do basic checking
for us.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Thu, 6 Aug 2009 19:26:01 +0000 (15:26 -0400)]
Unionfs: Release 2.5.2
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 26 May 2009 03:15:17 +0000 (23:15 -0400)]
Unionfs: prevent lockdep false positives in mmap
Due to a new (and probably overzealous) lockdep-enabled might_fault().
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Fri, 22 May 2009 01:02:31 +0000 (21:02 -0400)]
Unionfs: lock base inode mutex around lookup_one_len
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 26 May 2009 04:52:48 +0000 (00:52 -0400)]
Unionfs: merge fixes from rebasing to 2.6.29.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 19 Jan 2009 02:22:29 +0000 (21:22 -0500)]
Unionfs: release 2.5.1
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 19 Jan 2009 05:38:32 +0000 (00:38 -0500)]
Unionfs: update maintainers
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 19 Jan 2009 03:22:06 +0000 (22:22 -0500)]
Unionfs: update copyrights for 2009
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 19 Jan 2009 02:00:46 +0000 (21:00 -0500)]
Unionfs: create whiteout in correct dir after rename with copyup
Fixes bug #625: a file renamed/moved into a directory, if resulted in a
copyup with a whiteout creation, could cause the whiteout to be created in
the wrong dir.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sat, 17 Jan 2009 08:27:51 +0000 (03:27 -0500)]
Unionfs: prevent lockdep false positives in mmap
Due to a new (and probably overzealous) lockdep-enabled might_fault().
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Fri, 7 Nov 2008 21:49:48 +0000 (16:49 -0500)]
Unionfs: use path_put in mount code
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Fri, 7 Nov 2008 21:50:16 +0000 (16:50 -0500)]
Unionfs: handle partial copyup errors gracefully
Don't leave any dentries behind if copying up the inode (or setting its
permission, i.e., using TOMOYO) failed.
CC: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 13 Jan 2009 03:02:11 +0000 (22:02 -0500)]
Unionfs: use the new struct cred API
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 13 Jan 2009 03:01:15 +0000 (22:01 -0500)]
Unionfs: dentry_open takes a struct cred now
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 13 Jan 2009 03:16:46 +0000 (22:16 -0500)]
Security/VFS: re-export security_inode_permission symbol
Unionfs needs it because it has to do everything in there, but skip the
EROFS test (so copyup can be triggered). There's no easy way to execute
parts of security_inode_permission() without copying and duplicating much
of its functionality, so exporting the symbol seems the simplest.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sat, 20 Sep 2008 14:54:59 +0000 (10:54 -0400)]
Unionfs: release 2.5
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Thu, 18 Sep 2008 23:55:19 +0000 (19:55 -0400)]
Unionfs: unionfs_permission locking fixes
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Fri, 19 Sep 2008 04:44:00 +0000 (00:44 -0400)]
Unionfs: file/dentry revalidation fixes
Cleanup unnecessary code, merge functions together, and handle situation
where parent dentry may not be valid.
Erez Zadok [Wed, 17 Sep 2008 17:52:17 +0000 (13:52 -0400)]
Unionfs: remove unused nameidata parameters
In preparation for the VFS removing most/all nameidata from file systems's
view.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 17 Sep 2008 15:41:28 +0000 (11:41 -0400)]
Unionfs: file_release must always succeed
Why does f_op->release return an int if the VFS ignores it?!
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 17 Sep 2008 07:29:35 +0000 (03:29 -0400)]
Unionfs: remove redundant file-invariant check in file_revalidate
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 17 Sep 2008 07:27:35 +0000 (03:27 -0400)]
Unionfs: fix readlink/follow_link to add locking
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 17 Sep 2008 07:24:57 +0000 (03:24 -0400)]
Unionfs: return EINVAL in setattr on error
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 17 Sep 2008 07:22:21 +0000 (03:22 -0400)]
Unionfs: just warn in put_super instead of BUG-ing
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Thu, 18 Sep 2008 06:27:44 +0000 (02:27 -0400)]
patch unionfs-cleanup-mntput-calls.patch
Erez Zadok [Tue, 16 Sep 2008 04:59:08 +0000 (00:59 -0400)]
Unionfs: use dget_parent to keep parent dentry stable
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 16 Sep 2008 04:01:53 +0000 (00:01 -0400)]
Unionfs: remove unnecessary calls to copy_attr_times
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sat, 13 Sep 2008 03:16:26 +0000 (23:16 -0400)]
Unionfs: fix off-by-one but in mkdir
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 26 Aug 2008 19:07:49 +0000 (15:07 -0400)]
Unionfs: don't open unhashed files
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 20 Aug 2008 17:04:27 +0000 (13:04 -0400)]
Unionfs: initialize lower mnt in lookup after vfs_path_lookup
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Thu, 11 Sep 2008 03:41:18 +0000 (23:41 -0400)]
Unionfs: drop branchcount on error
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Thu, 11 Sep 2008 03:41:10 +0000 (23:41 -0400)]
Unionfs: add a few more invariant debugging checks
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Thu, 11 Sep 2008 03:41:02 +0000 (23:41 -0400)]
Unionfs: update parent mnt on unlink
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 20 Aug 2008 19:42:40 +0000 (15:42 -0400)]
Unionfs: prevent a privilege escalation during first copyup
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 30 Jul 2008 01:32:36 +0000 (21:32 -0400)]
Unionfs: release 2.4
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:29:50 +0000 (00:29 -0400)]
Unionfs: use new kmem_cache_create constructor prototype
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:28:58 +0000 (00:28 -0400)]
Unionfs: LOOKUP_ACCESS intent no longer exists
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:36:13 +0000 (00:36 -0400)]
Unionfs: permission no longer takes a nameidata parameter
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:04:00 +0000 (00:04 -0400)]
Unionfs: symlink no longer takes a mode parameter
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: properly hash newly created inodes
This fixes LTP's syscalls/rename13 test.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: minor checkpatch fixes
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: update copyrights
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: update maintainers
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: remove old lookup code
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: cache coherency fixes
Handle unhashed or silly-renamed lower dentries properly.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: free lower paths array when destroying dentry's private data
CC: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: lookup overhaul using vfs_path_lookup
Rework the lookup code to use vfs_path_lookup as much as possible, to ensure
that we have a vfsmount at this critical stage. This is necessary for the
upcoming VFS API change from vfs_* to path_* methods. This change also
allows unionfs to cross bind mounts and other mounts on lower branches.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: overhaul whiteout code
Move all whiteout functions and helpers into a separate file, replace all
embedded whiteout code with calls to helpers. Cleanup and consolidate the
code. This will make it easier to replace the whiteout code with a
Linux-native whiteout implementation (once available).
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: simplify stale-inode detection code
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: create and consolidate helpers to path-put lower objects
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: create and consolidate helpers to iput lower objects
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: move a rename helper closer to rename code
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: simplify the macros used to get/set the dentry start/end branches
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 28 Jul 2008 04:25:46 +0000 (00:25 -0400)]
Unionfs: use new umount_begin prototype
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 23 Apr 2008 23:41:26 +0000 (19:41 -0400)]
Unionfs: release 2.3.3
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 23 Apr 2008 23:05:59 +0000 (19:05 -0400)]
Unionfs: lock parent dentry branch config in write
Ensure that branch configuration is available to file_revalidate should a
copyup be required.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 23 Apr 2008 23:05:50 +0000 (19:05 -0400)]
Unionfs: set lower file to NULL in file_release
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 23 Apr 2008 23:05:40 +0000 (19:05 -0400)]
Unionfs: maintain one-open-file invariant for non-directories
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 23 Apr 2008 23:05:22 +0000 (19:05 -0400)]
Unionfs: reorganize file_revalidate for un/locking callers
Also clean up deep nesting/indentation.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 15 Apr 2008 17:11:04 +0000 (13:11 -0400)]
Unionfs: copyup only if file is being written to
Before, we used to copyup on an open(2) call which used flags implying
writing (O_RDWR, O_WRONLY, O_APPEND). This meant that a file being opened
for writing, then immediately closed (without actually writing to the file),
will still have been copied up. Now, we don't copyup such files in ->open,
but defer the copyup till later. [Bug #591].
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Thu, 10 Apr 2008 19:32:26 +0000 (15:32 -0400)]
Unionfs: set append offset correctly for copied-up files
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 15 Apr 2008 17:07:44 +0000 (13:07 -0400)]
Unionfs: don't dereference dentry without lower branches in d_release
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sun, 6 Apr 2008 01:02:23 +0000 (21:02 -0400)]
Unionfs: stop as soon as first writeable branch is found
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Thu, 3 Apr 2008 17:56:47 +0000 (13:56 -0400)]
Unionfs: lock inode around calls to notify_change()
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Thu, 3 Apr 2008 17:15:59 +0000 (13:15 -0400)]
Unionfs: copy lower times in fsync/fasync only when needed
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 15 Apr 2008 17:05:52 +0000 (13:05 -0400)]
Unionfs: prevent races in unionfs_fault
vm_ops->fault may be called in parallel. Because we have to resort to
temporarily changing the vma->vm_file to point to the lower file, a
concurrent invocation of unionfs_fault could see a different value. In this
workaround, we keep a different copy of the vma structure in our stack, so
we never expose a different value of the vma->vm_file called to us, even
temporarily. A better fix (already tested) would be to change the calling
semantics of ->fault to take an explicit file pointer.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 15 Apr 2008 19:20:03 +0000 (15:20 -0400)]
Unionfs: minor code cleanups
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 1 Apr 2008 02:32:28 +0000 (22:32 -0400)]
Unionfs: release 2.3.2
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sun, 30 Mar 2008 21:15:08 +0000 (17:15 -0400)]
Unionfs: update lower mnts on rmdir with copyup
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sun, 30 Mar 2008 21:11:47 +0000 (17:11 -0400)]
Unionfs: don't purge lower sb data on remount
This is no longer needed, as we don't have upper and lower pages. Plus this
was racy, requiring the unexported inode_lock variable.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 26 Mar 2008 20:25:34 +0000 (16:25 -0400)]
Unionfs: release 2.3.1
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 25 Mar 2008 21:56:12 +0000 (17:56 -0400)]
Unionfs: do not over-decrement lower superblock refs on remount
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 25 Mar 2008 00:24:52 +0000 (20:24 -0400)]
Unionfs: release 2.3
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Mon, 24 Mar 2008 21:29:42 +0000 (17:29 -0400)]
Unionfs: display mount point name along with generation number
CC: Dave Miller <justdave@mozilla.com>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sun, 23 Mar 2008 05:16:33 +0000 (01:16 -0400)]
Unionfs: document reasons for opaque directories
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sun, 23 Mar 2008 02:55:45 +0000 (22:55 -0400)]
Unionfs: use noinline_for_stack
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sun, 23 Mar 2008 01:47:35 +0000 (21:47 -0400)]
Unionfs: use __func__ instead of __FUNCTION__
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Fri, 21 Mar 2008 20:02:19 +0000 (16:02 -0400)]
Unionfs: don't copy parent inode times in setattr
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sun, 23 Mar 2008 02:49:29 +0000 (22:49 -0400)]
Unionfs: reduce number of whiteouts by deleting all instances of files
Optimize the unlinking of non-dir objects in unionfs by deleting all
possible lower inode objects from all writable lower branches. This may
consume a bit more processing, but on average reduces overall inode
consumption and further saves a lot by reducing the total number of
whiteouts needed. We create a whiteout now only if we could not delete all
lower objects, or if one of the lower branches was explicitly marked
read-only.
Signed-off-by: Himanshu Kanda <hkanda@cs.sunysb.edu>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sun, 23 Mar 2008 06:05:01 +0000 (02:05 -0400)]
Unionfs: lock our dentry in file operations
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sat, 22 Mar 2008 03:37:44 +0000 (23:37 -0400)]
Unionfs: implement vm_operations->fault
As per recommendations made at LSF'08, a stackable file system which does
not change the data across layers, should try to use vm_operations instead
of address_space_operations. This means we now have to implement out own
->read and ->write methods because we cannot rely on VFS helpers which
require us to have a ->readpage method. Either way there are two caveats:
(1) It's not possible currently to set inode->i_mapping->a_ops to NULL,
because too many code paths expect i_mapping to be non-NULL.
(2) a small/dummy ->readpage is still needed because generic_file_mmap,
which we used in unionfs_mmap, still check for the existence of the
->readpage method. These code paths may have to be changed to remove the
need for readpage().
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Fri, 21 Mar 2008 20:07:59 +0000 (16:07 -0400)]
Unionfs: implement splice_read/write methods directly
Must implement splice_read/write directly, using VFS helpers, because we can
no longer rely on generic_file_splice_read/write: they need
address_space_operations implemented, which we no longer have.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Fri, 21 Mar 2008 20:04:42 +0000 (16:04 -0400)]
VFS: rename do_splice_to/from to vfs_splice_* and export symbols
A stackable file system which uses vm_ops->fault, and does not implement
address_space_operations, cannot use generic_file_splice_read/write, but has
to implement ->splice_read/write itself. These two helper functions are
very useful to such a module.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 25 Mar 2008 00:44:54 +0000 (20:44 -0400)]
VFS: export release_open_intent as GPL symbol, not regular symbol
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sat, 16 Feb 2008 04:08:04 +0000 (23:08 -0500)]
Unionfs: release 2.2.4
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Fri, 15 Feb 2008 23:42:43 +0000 (18:42 -0500)]
VFS/Unionfs: use generic path_get/path_put functions
Remove unionfs's versions thereof.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Jan Blunck [Fri, 15 Feb 2008 23:47:28 +0000 (18:47 -0500)]
Unionfs: use the new path_put
* Add path_put() functions for releasing a reference to the dentry and
vfsmount of a struct path in the right order
* Switch from path_release(nd) to path_put(&nd->path)
* Rename dput_path() to path_put_conditional()
Signed-off-by: Jan Blunck <jblunck@suse.de>
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Andrew Morton [Fri, 15 Feb 2008 23:45:45 +0000 (18:45 -0500)]
Unionfs: embed a struct path into struct nameidata instead of nd dentrymnt
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
David Howells [Fri, 15 Feb 2008 22:18:48 +0000 (17:18 -0500)]
Unionfs: stop using iget() and read_inode()
Replace unionfs_read_inode() with unionfs_iget(), and call that instead of
iget(). unionfs_iget() then uses iget_locked() directly and returns a
proper error code instead of an inode in the event of an error.
unionfs_fill_super() returns any error incurred when getting the root inode
instead of EINVAL.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Fri, 15 Feb 2008 22:18:48 +0000 (17:18 -0500)]
Unionfs: use dget_parent in revalidation code
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Fri, 15 Feb 2008 22:18:48 +0000 (17:18 -0500)]
Unionfs: branch management/configuration fixes
Remove unnecessary calls to update branch m/ctimes, and use them only when
needed. Update branch vfsmounts after operations that could cause a copyup.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Fri, 15 Feb 2008 22:18:48 +0000 (17:18 -0500)]
Unionfs: lock parents' branch configuration fixes
Ensure that we lock the branch configuration of parent and child dentries in
operations which need it, and in the right order.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Fri, 15 Feb 2008 22:18:48 +0000 (17:18 -0500)]
Unionfs: factor out revalidation routine
To be used by rest of revalidation code, as well a callers who already
locked the child and parent dentry branch-configurations.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Fri, 15 Feb 2008 22:18:48 +0000 (17:18 -0500)]
Unionfs: revalidation code cleanup and refactoring
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>