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linux/drivers/md/dm-cache-policy.h
Joe Thornber 4e781b498e dm cache: speed up writing of the hint array 
It's far quicker to always delete the hint array and recreate with
dm_array_new() because we avoid the copying caused by mutation.

Also simplifies the policy interface, replacing the walk_hints() with
the simpler get_hint().

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-09-22 11:15:02 -04:00

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