| commit | 30996f40bffe73f05abb92a4cec254befa8cecf7 | |
| author | Jens Axboe <jens.axboe@oracle.com> | |
| Mon, 5 Oct 2009 09:03:39 +0000 (5 11:03 +0200) | ||
| committer | Jens Axboe <jens.axboe@oracle.com> | |
| Mon, 5 Oct 2009 09:03:39 +0000 (5 11:03 +0200) | ||
| tree | 2ce2cf9ed92aff3f930b7553711f4b439d6cb89e | treesnapshot (tar.gz zip) |
| parent | 374576a8b6f865022c0fd1ca62396889b23d66dd | commitdiff |
cfq-iosched: fix issue with rq-rq merging and fifo list ordering
cfq uses rq->start_time as the fifo indicator, but that field may
get modified prior to cfq doing it's fifo list adjustment when
a request gets merged with another request. This can cause the
fifo list to become unordered.
Reported-by: Corrado Zoccolo <czoccolo@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
cfq uses rq->start_time as the fifo indicator, but that field may
get modified prior to cfq doing it's fifo list adjustment when
a request gets merged with another request. This can cause the
fifo list to become unordered.
Reported-by: Corrado Zoccolo <czoccolo@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| block/cfq-iosched.c | diffblobblamehistory |