Re: [PATCH 1/3] ext4: mark all metadata I/O with REQ_META

2013-04-22 Thread Zheng Liu
On Sat, Apr 20, 2013 at 08:07:06PM -0400, Theodore Ts'o wrote: > As Dave Chinner pointed out at the 2013 LSF/MM workshop, it's > important that metadata I/O requests are marked as such to avoid > priority inversions caused by I/O bandwidth throttling. > > Signed-off-by: "Theodore Ts'o" Reviewed-

[PATCH 1/3] ext4: mark all metadata I/O with REQ_META

2013-04-20 Thread Theodore Ts'o
As Dave Chinner pointed out at the 2013 LSF/MM workshop, it's important that metadata I/O requests are marked as such to avoid priority inversions caused by I/O bandwidth throttling. Signed-off-by: "Theodore Ts'o" --- fs/ext4/balloc.c | 2 +- fs/ext4/ialloc.c | 2 +- fs/ext4/mmp.c| 4 ++-- f