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(parent: 9e495db) | patch
block: Don't count_vm_events for discard bio in submit_bio.
authorTao Ma <tao.ma@oracle.com>
Wed, 23 Jun 2010 23:43:57 +0000 (07:43 +0800)
committerJens Axboe <jaxboe@fusionio.com>
Thu, 24 Jun 2010 06:14:22 +0000 (08:14 +0200)
commit1b99973f1c82707e46e8cb9416865a1e955e8f8c
treeb264a9cbd3a36016d312484dcad38f778122af49tree | snapshot (tar.gz zip)
parent9e495db1a1f931e82c9edccd677dd171be5b85d2commit | diff
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>
block/blk-core.c diff | blob | blame | history