diff options
| author | Jerome Marchand <jmarchan@redhat.com> | 2009-03-27 10:31:51 +0100 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2009-04-07 08:12:38 +0200 |
| commit | 26308eab69aa193f7b3fb50764a64ae14544a39b (patch) | |
| tree | 758f6100395a23228d042c3a9d6f7dc1922d7530 /block/blk.h | |
| parent | block: elevator quiescing helpers (diff) | |
| download | linux-26308eab69aa193f7b3fb50764a64ae14544a39b.tar.xz linux-26308eab69aa193f7b3fb50764a64ae14544a39b.zip | |
block: fix inconsistency in I/O stat accounting code
This forces in_flight to be zero when turning off or on the I/O stat
accounting and stops updating I/O stats in attempt_merge() when
accounting is turned off.
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/blk.h')
| -rw-r--r-- | block/blk.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/block/blk.h b/block/blk.h index 22043c2886c7..24fcaeeaf620 100644 --- a/block/blk.h +++ b/block/blk.h @@ -112,12 +112,14 @@ static inline int blk_cpu_to_group(int cpu) #endif } -static inline int blk_do_io_stat(struct request_queue *q) +static inline int blk_do_io_stat(struct request *rq) { - if (q) - return blk_queue_io_stat(q); + struct gendisk *disk = rq->rq_disk; - return 0; + if (!disk || !disk->queue) + return 0; + + return blk_queue_io_stat(disk->queue) && (rq->cmd_flags & REQ_ELVPRIV); } #endif |