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block: avoid setting wbt_lat_usec to current value
authorAleksei Zakharov <zakharov.a.g@yandex.ru>
Mon, 11 Feb 2019 10:10:34 +0000 (13:10 +0300)
committerJens Axboe <axboe@kernel.dk>
Mon, 11 Feb 2019 15:20:14 +0000 (08:20 -0700)
commitb7143fe67bfc3b83a9e11371da659e1e70a1bbf3
tree97680f2159fc96f58d83743844ab1b1d1f025cb1
parent0586942f03b71bc95b0ee356ff6b09d53acbad06
block: avoid setting wbt_lat_usec to current value

There's no reason to set wbt min lat and freeze request queue
if current value is the same.

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Aleksei Zakharov <zakharov.a.g@yandex.ru>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/blk-sysfs.c