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dm cache: delete obsoleted paragraph in cache.txt

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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>
This commit is contained in:
mulhern 2017-11-27 10:02:41 -05:00 committed by Mike Snitzer
parent 677210462d
commit 3716e20af5
1 changed files with 0 additions and 5 deletions
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Documentation/device-mapper/cache.txt
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@ -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