md/raid5: For stripe with R5_ReadNoMerge, we replace REQ_FLUSH with REQ_NOMERGE.
authormajianpeng <majianpeng@gmail.com>
Thu, 14 Nov 2013 04:16:19 +0000 (15:16 +1100)
committerNeilBrown <neilb@suse.de>
Tue, 19 Nov 2013 04:19:18 +0000 (15:19 +1100)
commite59aa23f4c0c61b4baa5d535a2071d6666e83502
tree954517a8875ef8bd9ffc1f3a3686d1f160dd12a1
parentc0f8bd146a8b3e630798561c605f5669823107af
md/raid5: For stripe with R5_ReadNoMerge, we replace REQ_FLUSH with REQ_NOMERGE.

For R5_ReadNoMerge,it mean this bio can't merge with other bios or
request.It used REQ_FLUSH to achieve this. But REQ_NOMERGE can do the
same work.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
drivers/md/raid5.c