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authorJoe Thornber <ejt@redhat.com>2013-03-02 02:45:51 +0400
committerAlasdair G Kergon <agk@redhat.com>2013-03-02 02:45:51 +0400
commitc6b4fcbad044e6fffcc75bba160e720eb8d67d17 (patch)
tree1fb20e6ca157ebfbf2c97ae022fc6ba3e0550dd6 /block/Kconfig
parent7a87edfee75151abb69d47dba2277ff2de0f6071 (diff)
downloadlinux-c6b4fcbad044e6fffcc75bba160e720eb8d67d17.tar.xz
dm: add cache target
Add a target that allows a fast device such as an SSD to be used as a cache for a slower device such as a disk. A plug-in architecture was chosen so that the decisions about which data to migrate and when are delegated to interchangeable tunable policy modules. The first general purpose module we have developed, called "mq" (multiqueue), follows in the next patch. Other modules are under development. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Heinz Mauelshagen <mauelshagen@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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