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363b7fd76c
Both bufio and bio-prison-v1 use the identical model for splitting their respective locks and rbtrees. Improve dm_num_hash_locks() to distribute across more rbtrees to improve overall performance -- but the maximum number of locks/rbtrees is still 64. Also factor out a common hash function named dm_hash_locks_index(), the magic numbers used were determined to be best using this program: https://gist.github.com/jthornber/e05c47daa7b500c56dc339269c5467fc Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
253 lines
7.2 KiB
253 lines
7.2 KiB