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authorDmitry Monakhov <dmonakhov@openvz.org>2010-04-26 20:03:33 +0400
committerJan Kara <jack@suse.cz>2010-05-21 19:30:41 +0200
commitdde9588853b1bde542eab247f8838c472806688f (patch)
tree9f9c68bf63120056517bbfce78b75e6820cc4c4b /Documentation/filesystems
parentda8d1ba22fa1fd0c0e541a43d75ebb062589b14b (diff)
quota: Make quota stat accounting lockless.
Quota stats is mostly writable data structure. Let's alloc percpu bucket for each value. NOTE: dqstats_read() function is racy against dqstats_{inc,dec} and may return inconsistent value. But this is ok since absolute accuracy is not required. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Jan Kara <jack@suse.cz>
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