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Commit 3716e20a authored by mulhern's avatar mulhern Committed by Mike Snitzer
Browse files

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: default avatarmulhern <amulhern@redhat.com>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
parent 67721046

Documentation/device-mapper/cache.txt

+0 −5
Original line number Diff line number Diff line
@@ -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