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authorMichael Callahan <michaelcallahan@fb.com>2018-07-18 13:47:37 +0200
committerJens Axboe <axboe@kernel.dk>2018-07-18 16:44:16 +0200
commit59767fbd49d794b4499d30b314df6c0d4aca584b (patch)
treec9c02d6336a9408343a08065a032745740e898b2 /fs/ext4
parentblock: make bdev_ops->rw_page() take a REQ_OP instead of bool (diff)
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block: Add part_stat_read_accum to read across field entries.
Add a part_stat_read_accum macro to genhd.h to read and sum across field entries. For example to sum up the number read and write sectors completed. In addition to being ar reasonable cleanup by itself this will make it easier to add new stat fields in the future. tj: Refreshed on top of v4.17. Signed-off-by: Michael Callahan <michaelcallahan@fb.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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