kernel_optimize_test/fs/nilfs2
Theodore Ts'o 041bbb6d36 ext4: fix mtime update in nodelalloc mode
Commits 5e8830dc85 and 41c4d25f78 introduced a regression into
v3.6-rc1 for ext4 in nodealloc mode, such that mtime updates would not
take place for files modified via mmap if the page was already in the
page cache.  This would also affect ext3 file systems mounted using
the ext4 file system driver.

The problem was that ext4_page_mkwrite() had a shortcut which would
avoid calling __block_page_mkwrite() under some circumstances, and the
above two commit transferred the responsibility of calling
file_update_time() to __block_page_mkwrite --- which woudln't get
called in some circumstances.

Since __block_page_mkwrite() only has three callers,
block_page_mkwrite(), ext4_page_mkwrite, and nilfs_page_mkwrite(), the
best way to solve this is to move the responsibility for calling
file_update_time() to its caller.

This problem was found via xfstests #215 with a file system mounted
with -o nodelalloc.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: KONISHI Ryusuke <konishi.ryusuke@lab.ntt.co.jp>
Cc: stable@vger.kernel.org
2012-09-30 23:04:56 -04:00
..
alloc.c nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
alloc.h nilfs2: add omitted comments for different structures in driver implementation 2012-07-30 17:25:19 -07:00
bmap.c nilfs2: get rid of NILFS_I_NILFS 2011-05-10 22:21:56 +09:00
bmap.h nilfs2: add omitted comments for different structures in driver implementation 2012-07-30 17:25:19 -07:00
btnode.c nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
btnode.h nilfs2: add omitted comments for different structures in driver implementation 2012-07-30 17:25:19 -07:00
btree.c nilfs2: fix missing block address termination in btree node shrinking 2011-06-11 15:51:15 +09:00
btree.h
cpfile.c nilfs2: fix timing issue between rmcp and chcp ioctls 2012-07-30 17:25:19 -07:00
cpfile.h nilfs2: use iget for all metadata files 2010-10-23 09:24:38 +09:00
dat.c nilfs2: add omitted comments for different structures in driver implementation 2012-07-30 17:25:19 -07:00
dat.h nilfs2: use iget for all metadata files 2010-10-23 09:24:38 +09:00
dir.c nilfs2: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:24 +08:00
direct.c nilfs2: record used amount of each checkpoint in checkpoint list 2011-03-08 14:58:31 +09:00
direct.h
export.h nilfs2: add omitted comments for different structures in driver implementation 2012-07-30 17:25:19 -07:00
file.c ext4: fix mtime update in nodelalloc mode 2012-09-30 23:04:56 -04:00
gcinode.c nilfs2: ensure proper cache clearing for gc-inodes 2012-06-20 14:39:35 -07:00
ifile.c nilfs2: add omitted comments for different structures in driver implementation 2012-07-30 17:25:19 -07:00
ifile.h nilfs2: use iget for all metadata files 2010-10-23 09:24:38 +09:00
inode.c nilfs2: add omitted comments for different structures in driver implementation 2012-07-30 17:25:19 -07:00
ioctl.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-08-01 10:26:23 -07:00
Kconfig
Makefile nilfs2: get rid of GCDAT inode 2010-10-23 09:24:38 +09:00
mdt.c nilfs2: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:24 +08:00
mdt.h nilfs2: add omitted comments for different structures in driver implementation 2012-07-30 17:25:19 -07:00
namei.c don't pass nameidata to ->create() 2012-07-14 16:34:47 +04:00
nilfs.h nilfs2: add omitted comments for different structures in driver implementation 2012-07-30 17:25:19 -07:00
page.c nilfs2: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:24 +08:00
page.h nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
recovery.c nilfs2: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:24 +08:00
segbuf.c nilfs2: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:24 +08:00
segbuf.h
segment.c nilfs2: Convert to new freezing mechanism 2012-07-31 09:45:52 +04:00
segment.h nilfs2: get rid of private page allocator 2011-05-10 22:21:44 +09:00
sufile.c nilfs2: add omitted comments for different structures in driver implementation 2012-07-30 17:25:19 -07:00
sufile.h nilfs2: get rid of NILFS_I_NILFS 2011-05-10 22:21:56 +09:00
super.c nilfs2: fix deadlock issue between chcp and thaw ioctls 2012-07-30 17:25:19 -07:00
the_nilfs.c nilfs2: fix deadlock issue between chcp and thaw ioctls 2012-07-30 17:25:19 -07:00
the_nilfs.h nilfs2: add omitted comments for different structures in driver implementation 2012-07-30 17:25:19 -07:00