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a9063ab9a3
linux/fs/ocfs2
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Tao Ma a9063ab9a3 ocfs2: handle file attributes issue for reflink. 
A reflink creates a snapshot of a file, that means the attributes
must be identical except for three exceptions - nlink, ino, and ctime.

As for time changes, Here is a brief description:

1. Source file:
   1) atime: Ignore. Let the lazy atime code handle that.
   2) mtime: don't touch.
   3) ctime: If we change the tree (adding REFCOUNTED to at least one
             extent), update it.
2. Destination file:
   1) atime: ignore.
   2) mtime: we want it to appear identical to the source.
   3) ctime: update.

The idea here is that an ls -l will show the same time for the
src and target - it shows mtime.  Backup software like rsync and tar
will treat the new file correctly too.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
2009-09-22 20:09:39 -07:00
..
cluster ocfs2: Add ocfs2_read_refcount_block. 2009-09-22 20:09:26 -07:00
dlm ocfs2/dlm: Wait on lockres instead of erroring cancel requests 2009-08-20 18:42:34 -07:00
acl.c New helper - current_umask() 2009-03-31 23:00:26 -04:00
acl.h ocfs2: add ocfs2_init_acl in mknod 2009-01-05 08:34:20 -08:00
alloc.c ocfs2: CoW refcount tree improvement. 2009-09-22 20:09:36 -07:00
alloc.h ocfs2: Add CoW support. 2009-09-22 20:09:36 -07:00
aops.c ocfs2: CoW a reflinked cluster when it is truncated. 2009-09-22 20:09:38 -07:00
aops.h ocfs2: Add CoW support. 2009-09-22 20:09:36 -07:00
blockcheck.c ocfs2: Add statistics for the checksum and ecc operations. 2009-06-03 19:15:36 -07:00
blockcheck.h ocfs2: Add statistics for the checksum and ecc operations. 2009-06-03 19:15:36 -07:00
buffer_head_io.c ocfs2: Take the inode out of the metadata read/write paths. 2009-09-04 16:07:48 -07:00
buffer_head_io.h ocfs2: Take the inode out of the metadata read/write paths. 2009-09-04 16:07:48 -07:00
dcache.c ocfs2: invalidate dentry if its dentry_lock isn't initialized. 2009-08-27 18:10:54 -07:00
dcache.h ocfs2: Fix deadlock on umount 2009-07-21 15:47:55 -07:00
dir.c ocfs2: Pass ocfs2_caching_info into ocfs_init_*_extent_tree(). 2009-09-04 16:08:13 -07:00
dir.h ocfs2: Introduce dir free space list 2009-04-03 11:39:16 -07:00
dlmglue.c ocfs2: Add new refcount tree lock resource in dlmglue. 2009-09-22 20:09:28 -07:00
dlmglue.h ocfs2: Add new refcount tree lock resource in dlmglue. 2009-09-22 20:09:28 -07:00
export.c ocfs2: Fix some printk() warnings. 2009-04-21 16:31:20 -07:00
export.h
extent_map.c ocfs2: Add support for incrementing refcount in the tree. 2009-09-22 20:09:33 -07:00
extent_map.h ocfs2: Add support for incrementing refcount in the tree. 2009-09-22 20:09:33 -07:00
file.c ocfs2: CoW a reflinked cluster when it is truncated. 2009-09-22 20:09:38 -07:00
file.h ocfs2: Integrate CoW in file write. 2009-09-22 20:09:37 -07:00
heartbeat.c
heartbeat.h
inode.c ocfs2: Drop struct inode from ocfs2_extent_tree_operations. 2009-09-04 16:07:57 -07:00
inode.h ocfs2: Drop struct inode from ocfs2_extent_tree_operations. 2009-09-04 16:07:57 -07:00
ioctl.c
ioctl.h
journal.c ocfs2: Add metaecc for ocfs2_refcount_block. 2009-09-22 20:09:26 -07:00
journal.h ocfs2: Decrement refcount when truncating refcounted extents. 2009-09-22 20:09:35 -07:00
Kconfig fs/Kconfig: move ocfs2 out 2009-01-22 13:15:54 +03:00
localalloc.c ocfs2: Pass struct ocfs2_caching_info to the journal functions. 2009-09-04 16:07:50 -07:00
localalloc.h
locks.c
locks.h
Makefile ocfs2: Add ocfs2_read_refcount_block. 2009-09-22 20:09:26 -07:00
mmap.c mm: page_mkwrite change prototype to match fault 2009-04-01 08:59:14 -07:00
mmap.h
namei.c ocfs2: Pass struct ocfs2_caching_info to the journal functions. 2009-09-04 16:07:50 -07:00
namei.h
ocfs1_fs_compat.h
ocfs2_fs.h ocfs2: Add support for incrementing refcount in the tree. 2009-09-22 20:09:33 -07:00
ocfs2_lockid.h ocfs2: Add new refcount tree lock resource in dlmglue. 2009-09-22 20:09:28 -07:00
ocfs2_lockingver.h
ocfs2.h ocfs2: Add functions for extents refcounted. 2009-09-22 20:09:34 -07:00
quota_global.c ocfs2: Pass struct ocfs2_caching_info to the journal functions. 2009-09-04 16:07:50 -07:00
quota_local.c ocfs2: Pass struct ocfs2_caching_info to the journal functions. 2009-09-04 16:07:50 -07:00
quota.h ocfs2: Remove syncjiff field from quota info 2009-07-23 10:59:27 -07:00
refcounttree.c ocfs2: handle file attributes issue for reflink. 2009-09-22 20:09:39 -07:00
refcounttree.h ocfs2: CoW a reflinked cluster when it is truncated. 2009-09-22 20:09:38 -07:00
resize.c ocfs2: Pass struct ocfs2_caching_info to the journal functions. 2009-09-04 16:07:50 -07:00
resize.h
slot_map.c ocfs2: Take the inode out of the metadata read/write paths. 2009-09-04 16:07:48 -07:00
slot_map.h
stack_o2cb.c ocfs2: keep index within status_map[] 2009-08-07 13:16:50 -07:00
stack_user.c ocfs2: Provide the ocfs2_dlm_lvb_valid() stack API. 2009-06-22 14:24:30 -07:00
stackglue.c ocfs2: Provide the ocfs2_dlm_lvb_valid() stack API. 2009-06-22 14:24:30 -07:00
stackglue.h ocfs2: Provide the ocfs2_dlm_lvb_valid() stack API. 2009-06-22 14:24:30 -07:00
suballoc.c ocfs2: Pass ocfs2_caching_info to ocfs2_read_extent_block(). 2009-09-04 16:07:52 -07:00
suballoc.h ocfs2: fix rare stale inode errors when exporting via nfs 2009-04-03 11:39:25 -07:00
super.c ocfs2: Add refcount tree lock mechanism. 2009-09-22 20:09:29 -07:00
super.h
symlink.c ocfs2: Use nd_set_link(). 2009-05-09 10:49:40 -04:00
symlink.h
sysfile.c ocfs2/trivial: Wrap ocfs2_sysfile_cluster_lock_key within define. 2009-06-22 14:34:29 -07:00
sysfile.h
uptodate.c ocfs2: move ip_created_trans to struct ocfs2_caching_info 2009-09-04 16:07:49 -07:00
uptodate.h ocfs2: Pass struct ocfs2_caching_info to the journal functions. 2009-09-04 16:07:50 -07:00
ver.c
ver.h
xattr.c ocfs2: Pass ocfs2_caching_info into ocfs_init_*_extent_tree(). 2009-09-04 16:08:13 -07:00
xattr.h ocfs2: Add a name indexed b-tree to directory inodes 2009-04-03 11:39:15 -07:00