dm cache policy mq: keep track of the number of entries in a multiqueue

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Small optimisation, now queue_empty() doesn't need to walk all levels of
the multiqueue.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

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Joe Thornber 2015-02-20 12:58:03 +00:00 • committed by Mike Snitzer

parent ac1f9ef211

commit 75da39bf25

1 changed files with 12 additions and 13 deletions

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drivers/md/dm-cache-policy-mq.c

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