| commit | e2a60f48bfd758fc85afbd278950e989a9814a50 | |
| author | Nick Piggin <npiggin@suse.de> | |
| Tue, 6 Jan 2009 22:40:26 +0000 (6 14:40 -0800) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Sun, 25 Jan 2009 00:36:28 +0000 (24 16:36 -0800) | ||
| tree | ed7c274f1c69091d4b90d9969380c0cb84e2fe53 | treesnapshot (tar.gz zip) |
| parent | 229dfbd9fb66befda9abbc7fd58bb0cafcd4d0d7 | commitdiff |
fs: sys_sync fix
commit 856bf4d717feb8c55d4e2f817b71ebb70cfbc67b upstream.
s_syncing livelock avoidance was breaking data integrity guarantee of
sys_sync, by allowing sys_sync to skip writing or waiting for superblocks
if there is a concurrent sys_sync happening.
This livelock avoidance is much less important now that we don't have the
get_super_to_sync() call after every sb that we sync. This was replaced
by __put_super_and_need_restart.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit 856bf4d717feb8c55d4e2f817b71ebb70cfbc67b upstream.
s_syncing livelock avoidance was breaking data integrity guarantee of
sys_sync, by allowing sys_sync to skip writing or waiting for superblocks
if there is a concurrent sys_sync happening.
This livelock avoidance is much less important now that we don't have the
get_super_to_sync() call after every sb that we sync. This was replaced
by __put_super_and_need_restart.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| fs/fs-writeback.c | diffblobblamehistory | |
| include/linux/fs.h | diffblobblamehistory |