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authorHeinz Mauelshagen <heinzm@redhat.com>2014-06-05 18:23:09 +0400
committerMike Snitzer <snitzer@redhat.com>2014-06-12 00:48:54 +0400
commitadcc44472bacb227ebc0b1a8876efa5302474338 (patch)
tree594f3024476830cb98887266b282307cc960dd3d /drivers/base
parent11f0431be2f99c574a65c6dfc0ca205511500f29 (diff)
downloadlinux-adcc44472bacb227ebc0b1a8876efa5302474338.tar.xz
dm bio prison: implement per bucket locking in the dm_bio_prison hash table
Split the single per bio-prison lock by using per bucket locking. Per bucket locking benefits both dm-thin and dm-cache targets by reducing bio-prison lock contention. Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com> Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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