percpu_counter: make percpu_counters_lock irq-safe
authorTejun Heo <tj@kernel.org>
Mon, 8 Sep 2014 00:51:29 +0000 (09:51 +0900)
committerTejun Heo <tj@kernel.org>
Mon, 8 Sep 2014 00:51:29 +0000 (09:51 +0900)
commitebd8fef304f99da84d4a52ad056f6137ac9652d4
tree8fc0366c43264d684b0ade18f82c00182db26040
parent1a4d76076cda69b0abf15463a8cebc172406da25
percpu_counter: make percpu_counters_lock irq-safe

percpu_counter is scheduled to grow @gfp support to allow atomic
initialization.  This patch makes percpu_counters_lock irq-safe so
that it can be safely used from atomic contexts.

Signed-off-by: Tejun Heo <tj@kernel.org>
lib/percpu_counter.c