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| author | Joe Thornber <ejt@redhat.com> | 2013-11-08 16:39:50 +0000 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2013-11-11 11:37:51 -0500 |
| commit | 65790ff919e2e07ccb4457415c11075b245d643b (patch) | |
| tree | 9e2e0c667cf0fe62d72c1c37514d2535aa52ba5b /arch/s390/include/asm/os_info.h | |
| parent | 532906aa7f9656209f30f08dfadd328fc1bc6912 (diff) | |
| download | blackbird-op-linux-65790ff919e2e07ccb4457415c11075b245d643b.tar.gz blackbird-op-linux-65790ff919e2e07ccb4457415c11075b245d643b.zip | |
dm cache: add cache block invalidation support
Cache block invalidation is removing an entry from the cache without
writing it back. Cache blocks can be invalidated via the
'invalidate_cblocks' message, which takes an arbitrary number of cblock
ranges:
invalidate_cblocks [<cblock>|<cblock begin>-<cblock end>]*
E.g.
dmsetup message my_cache 0 invalidate_cblocks 2345 3456-4567 5678-6789
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'arch/s390/include/asm/os_info.h')
0 files changed, 0 insertions, 0 deletions
