md: use REQ_NOIDLE flag in md_super_write()

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Queue idling is used for the anticipation of immediate
sequencial I/O's but md_super_write() is a kind of one-
shot operation, coupled with md_super_wait(), so the
idling in this case will be just a waste of time.

Specifying REQ_NOIDLE prevents it. Instead of adding
the flag to submit_bio() directly, use pre-defined
macro WRITE_FLUSH_FUA.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>

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Namhyung Kim 2011-08-25 14:43:34 +10:00 • committed by NeilBrown

parent aeb9b21184

commit a5bf4df0c8

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drivers/md/md.c

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