block: only calculate part_in_flight() once
authorJens Axboe <axboe@fb.com>
Fri, 9 May 2014 21:48:23 +0000 (15:48 -0600)
committerJens Axboe <axboe@fb.com>
Fri, 9 May 2014 21:48:23 +0000 (15:48 -0600)
commit7276d02e241dc3595d4a18ac2456fa449e448de7
tree3fb2f7571884b9585783085e53578f973cf32c12
parentcf4b50afc28cc4629f82f5591bef1db2ce129fdc
block: only calculate part_in_flight() once

We first check if we have inflight IO, then retrieve that
same number again. Usually this isn't that costly since the
chance of having the data dirtied in between is small, but
there's no reason for calling part_in_flight() twice.

Signed-off-by: Jens Axboe <axboe@fb.com>
block/blk-core.c