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authorMing Lei <ming.lei@redhat.com>2020-10-01 23:48:42 +0800
committerJens Axboe <axboe@kernel.dk>2020-10-06 07:29:36 -0600
commit0549e87c30ae0d43d7e10424f2222bcd8bbe986d (patch)
treeb137a09643eda68a1905de9938b7837665820f2c /block/blk.h
parent2b0d3d3e4fcfb19d10f9a82910b8f0f05c56ee3e (diff)
block: move 'q_usage_counter' into front of 'request_queue'
The field of 'q_usage_counter' is always fetched in fast path of every block driver, and move it into front of 'request_queue', so it can be fetched into 1st cacheline of 'request_queue' instance. Signed-off-by: Ming Lei <ming.lei@redhat.com> Tested-by: Veronika Kabatova <vkabatov@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagi@grimberg.me> Cc: Tejun Heo <tj@kernel.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Jens Axboe <axboe@kernel.dk> Cc: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk.h')
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