blk-cgroup: factor out a helper to read rwstat counter

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Trying to break up the crazy statements to something readable.
Also switch to an unsigned counter as it can't ever turn negative.

Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Christoph Hellwig 2019-06-06 12:26:19 +02:00 • committed by Jens Axboe

parent 1aa0a133fb

commit 239eeb0857

2 changed files with 9 additions and 3 deletions

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5

block/blk-cgroup.c

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7

include/linux/blk-cgroup.h

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