Jan Kara e78d4833c0 lib: Fix possible deadlock in flexible proportion code ...

When percpu counter function in fprop_new_period() is interrupted by an
interrupt while holding counter lock, it can cause deadlock when the
interrupt wants to take the lock as well. Fix the problem by disabling
interrupts when calling percpu counter functions.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>

2012-06-09 08:37:55 +09:00

6.8 KiB

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