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author | Jan Kara <jack@suse.cz> | 2012-07-03 16:45:34 +0200 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-07-22 23:59:01 +0400 |
commit | 4ea425b63a3dfeb7707fc7cc7161c11a51e871ed (patch) | |
tree | f82060e43047424014436f88e808c3f1bba068f3 /fs/ext3 | |
parent | d0e91b13eb34d449922124c34f8a05e498daa089 (diff) | |
download | op-kernel-dev-4ea425b63a3dfeb7707fc7cc7161c11a51e871ed.zip op-kernel-dev-4ea425b63a3dfeb7707fc7cc7161c11a51e871ed.tar.gz |
vfs: Avoid unnecessary WB_SYNC_NONE writeback during sys_sync and reorder sync passes
wakeup_flusher_threads(0) will queue work doing complete writeback for each
flusher thread. Thus there is not much point in submitting another work doing
full inode WB_SYNC_NONE writeback by writeback_inodes_sb().
After this change it does not make sense to call nonblocking ->sync_fs and
block device flush before calling sync_inodes_sb() because
wakeup_flusher_threads() is completely asynchronous and thus these functions
would be called in parallel with inode writeback running which will effectively
void any work they do. So we move sync_inodes_sb() call before these two
functions.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/ext3')
0 files changed, 0 insertions, 0 deletions