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(parent: b7908c1) | patch
block cfq: don't use atomic_t for cfq_queue
authorShaohua Li <shaohua.li@intel.com>
Fri, 7 Jan 2011 07:46:59 +0000 (08:46 +0100)
committerJens Axboe <jaxboe@fusionio.com>
Fri, 7 Jan 2011 07:46:59 +0000 (08:46 +0100)
commit30d7b9448f03f2c82d0fd44738674cc156a8ce0a
treef925a59dfe6a7b2da5240e9d43d873de7b1de273tree | snapshot (tar.gz zip)
parentb7908c1035af7652cd613991b54dbff9c8b6bd3acommit | diff
block cfq: don't use atomic_t for cfq_queue

cfq_queue->ref is used with queue_lock hold, so ref doesn't need to be an atomic
and atomic operation is slower.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
block/cfq-iosched.c diff | blob | blame | history