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(parent: aeb9b21) | patch
md: use REQ_NOIDLE flag in md_super_write()
authorNamhyung Kim <namhyung@gmail.com>
Thu, 25 Aug 2011 04:43:34 +0000 (14:43 +1000)
committerNeilBrown <neilb@suse.de>
Thu, 25 Aug 2011 04:43:34 +0000 (14:43 +1000)
commita5bf4df0c88b88d34b6f0e3bc8a402dac7d14611
tree40296244aa28ddff0360a1a57878a99926243620tree | snapshot (tar.gz zip)
parentaeb9b211849621f592288ed5ad694de9eeaae87acommit | diff
md: use REQ_NOIDLE flag in md_super_write()

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>
drivers/md/md.c diff | blob | blame | history
kernel source for telekom puls (alcatel/mediatek)