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| author | mulhern | 2017-11-27 16:02:41 +0100 |
|---|---|---|
| committer | Mike Snitzer | 2018-01-17 15:16:08 +0100 |
| commit | 3716e20af5b583c3e15661aab657168176baa01e (patch) | |
| tree | 1a06ff469ffca718429cee984d1f541589eb194b /Documentation/device-mapper | |
| parent | dm cache: fix grammar in cache-policies.txt (diff) | |
| download | kernel-qcow2-linux-3716e20af5b583c3e15661aab657168176baa01e.tar.gz kernel-qcow2-linux-3716e20af5b583c3e15661aab657168176baa01e.tar.xz kernel-qcow2-linux-3716e20af5b583c3e15661aab657168176baa01e.zip | |
dm cache: delete obsoleted paragraph in cache.txt
The 'mq' policy is no longer the default policy, and the default policy,
'smq', does not store hit counts.
Signed-off-by: mulhern <amulhern@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'Documentation/device-mapper')
| -rw-r--r-- | Documentation/device-mapper/cache.txt | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/Documentation/device-mapper/cache.txt b/Documentation/device-mapper/cache.txt index cdfd0feb294e..043524409221 100644 --- a/Documentation/device-mapper/cache.txt +++ b/Documentation/device-mapper/cache.txt @@ -143,11 +143,6 @@ the policy how big this chunk is, but it should be kept small. Like the dirty flags this data is lost if there's a crash so a safe fallback value should always be possible. -For instance, the 'mq' policy, which is currently the default policy, -uses this facility to store the hit count of the cache blocks. If -there's a crash this information will be lost, which means the cache -may be less efficient until those hit counts are regenerated. - Policy hints affect performance, not correctness. Policy messaging |