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dm cache: improve efficiency of quiescing flag management
authorJoe Thornber <ejt@redhat.com>
Wed, 30 Oct 2013 17:29:30 +0000 (17:29 +0000)
committerMike Snitzer <snitzer@redhat.com>
Sat, 9 Nov 2013 23:19:59 +0000 (18:19 -0500)
Make the quiescing flag an atomic_t and stop protecting it with a spin
lock.

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

No differences found
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