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| author | Tao Ma <tao.ma@oracle.com> | 2010-06-24 01:43:57 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-06-24 08:14:22 +0200 |
| commit | 1b99973f1c82707e46e8cb9416865a1e955e8f8c (patch) | |
| tree | b264a9cbd3a36016d312484dcad38f778122af49 /mm | |
| parent | cfq: fix recursive call in cfq_blkiocg_update_completion_stats() (diff) | |
| download | linux-1b99973f1c82707e46e8cb9416865a1e955e8f8c.tar.xz linux-1b99973f1c82707e46e8cb9416865a1e955e8f8c.zip | |
block: Don't count_vm_events for discard bio in submit_bio.
In submit_bio, we count vm events by check READ/WRITE.
But actually DISCARD_NOBARRIER also has the WRITE flag set.
It looks as if in blkdev_issue_discard, we also add a
page as the payload and the bio_has_data check isn't enough.
So add another check for discard bio.
Signed-off-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions