raid5: lockless access raid5 overrided bi_phys_segments
authorShaohua Li <shli@kernel.org>
Thu, 19 Jul 2012 06:01:31 +0000 (16:01 +1000)
committerNeilBrown <neilb@suse.de>
Thu, 19 Jul 2012 06:01:31 +0000 (16:01 +1000)
Raid5 overrides bio->bi_phys_segments, accessing it is with device_lock hold,
which is unnecessary, We can make it lockless actually.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>

No differences found