Documentation/filesystems/unionfs/usage.txt | 2 +-
fs/unionfs/commonfops.c | 20 +++++-
fs/unionfs/debug.c | 26 +++++++-
fs/unionfs/dentry.c | 4 +-
fs/unionfs/dirfops.c | 2 +
fs/unionfs/fanout.h | 2 +-
fs/unionfs/file.c | 95 ++++++++++++++++++++++++++-
fs/unionfs/mmap.c | 49 +++++++++++---
fs/unionfs/super.c | 4 +-
fs/unionfs/union.h | 8 ++
10 files changed, 193 insertions(+), 19 deletions(-)
New commits:
commit 819b41f6fb863ef0f3b8e6ada1b94e7a88d44bea
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Sun Jul 22 01:10:45 2007 -0400
Unionfs: ensure cache coherency in unionfs_fsync/fasync
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
commit 31fde9ba69e7839873a7f87c030917b5ec04b54e
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Sat Jul 21 23:47:01 2007 -0400
Unionfs: implement native unionfs_fsync/unionfs_fasync methods
Unionfs is not a block-based file system, but it has to work with both
block-based file systems and non-block-based ones (i.e., when
CONFIG_BLOCK=n). We used to define our ->fsync method to file_fsync, but
that's wrong because file_fsync partially depends on CONFIG_BLOCK=y. And we
didn't define an fasync method: now we have both. Moreover, at best,
file_fsync would have caused unionfs to sync up one lower branch---but as a
fanout file system, we need to sync up all valid lower branches.
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
commit 864a822a3ecfef5ce0d706bc2f000835a66eab72
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Sat Jul 21 20:22:38 2007 -0400
Unionfs: small documentation fix to usage.txt
Reported by Daniel Farrugia.
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
commit 8e4e8e581e53669d22d8f43ccdf2dbb0b664f382
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Sat Jul 21 02:44:32 2007 -0400
Unionfs: mmap fixes to ->writepage/readpage/sync_page
unionfs_writepage: handle true errors differently from
AOP_WRITEPAGE_ACTIVATE conditions returned by lower file systems (such as
tmpfs).
unionfs_readpage: call flush_dcache_page as required.
unionfs_sync_page: don't call grab_cache_page to get the lower page, because
that function does too much and could lead to deadlocks. Instead, call the
lighter-weight find_lock_page.
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
commit ca9194f1f6431263d42bd9922514c98a70fc9131
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Sat Jul 21 02:38:14 2007 -0400
Unionfs: branch-management bugfix to unionfs_file_revalidate
If we re-opened the file on a different branch than the original one, and
only if this was due to a new branch inserted, then update the mnt counts of
the old and new branches accordingly.
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
commit 3be37c796f439ee0023d3c8dbb5d73ecb622c4bd
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Tue Jul 17 03:18:25 2007 -0400
Unionfs: cleanup: break line longer than 80 chars
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
commit c2296b4ce50c6d62bf5792f527a1dc4b021517bf
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Tue Jul 17 02:58:15 2007 -0400
Unionfs: fix minor typo in revalidate_chain comment
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
commit 697f6e855f51a3b5ad8529a6d9509a4cf2733b1a
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Mon Jul 16 23:56:26 2007 -0400
Unionfs: bugfix: don't call branchget() until dentry_open succeeded
If dentry_open fails, we incorrectly have incremented our branch counts
which would prevent unionfs from being unmounted (EBUSY).
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
commit 59def45740603470ff68e8f65aad0a88ef8d0dc3
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Mon Jul 16 23:54:11 2007 -0400
Unionfs: branch-management bug-fix to lower mnt counts
When we revalidate opened files, the files may point to a different set of
files on the lower branches: this could happen especially if we insert a new
leftmost branch which happens to have duplicate file names of already-open
files in lower-priority branches. In this case, update the mnt counts of
the old and new branches which hold the file accordingly. Without this fix,
the mntcnt of one branch is going to be one too high; and another will be
one too low.
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
commit 4fea3c25ff141aba2dca56c91f50aa22a5342d7d
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Mon Jul 16 23:45:46 2007 -0400
Unionfs: use igrab instead of atomic_inc inode refcnt
In branch management code, use igrab() which is better than directly
incrementing the lower inode reference count.
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
commit 2c5bd497d3ffa71ef772bb71a4ab3111efc5938c
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Mon Jul 16 23:42:55 2007 -0400
Unionfs: cache-coherency: update times of root inode after branch management
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
commit a9a103bfe25275d32503966ae427bfe76259eefa
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Mon Jul 16 23:40:07 2007 -0400
Unionfs: debugging: don't oops if sb->s_root is NULL
If we're calling show_branch_counts very early during mount or late during
unmount, don't oops if the s_root is already NULL.
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
commit 91b6c4c0771af054d0095562fcf53d68dabb35d7
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Mon Jul 16 23:38:30 2007 -0400
Unionfs: debugging: show inode reference counts for all branches
Another useful utility function for debugging, to show the inode refcnt's
of all lower inodes.
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
commit 487126d9ad9afcf60cafadc2c229956c61d62d0e
Author: Erez_Zadok <[EMAIL PROTECTED]>
Date: Mon Jul 16 23:35:19 2007 -0400
Unionfs: fix small typo in comment
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
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