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authorJoe Thornber <ejt@redhat.com>2013-03-01 23:45:51 +0100
committerAlasdair G Kergon <agk@redhat.com>2013-03-01 23:45:51 +0100
commitf283635281132af7bc7b90af3c105b8c0f73b9c7 (patch)
tree5ea66de48bc1f93a34b301986fa5455e53ac5a4c /drivers/md/dm-cache-metadata.c
parentdm: add cache target (diff)
downloadlinux-f283635281132af7bc7b90af3c105b8c0f73b9c7.tar.xz
linux-f283635281132af7bc7b90af3c105b8c0f73b9c7.zip
dm cache: add mq policy
A cache policy that uses a multiqueue ordered by recent hit count to select which blocks should be promoted and demoted. This is meant to be a general purpose policy. It prioritises reads over writes. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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