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authorPavel Begunkov <asml.silence@gmail.com>2019-11-29 00:11:53 +0300
committerJens Axboe <axboe@kernel.dk>2019-12-19 06:08:50 -0700
commit7d30a621028a22a9e8fbae5c5d8dc455869e4999 (patch)
tree2ed626e9fce51d89849495a2ab5a8b68496fb4ce /tools/perf/scripts/python/export-to-postgresql.py
parentMerge tag 'sound-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound (diff)
downloadwireguard-linux-7d30a621028a22a9e8fbae5c5d8dc455869e4999.tar.xz
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blk-mq: optimise rq sort function
Check "!=" in multi-layer comparisons. The same memory usage, fewer instructions, and 2 from 4 jumps are replaced with SETcc. Note, that list_sort() doesn't differ 0 and <0. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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