tree 56d9d696cb26de9696cfe591cab9b80d54608cef
parent 94ae0275d7d6cae84b3af11f9e3d88f529528ac7
author Russell King <rmk+kernel@arm.linux.org.uk> 1326986458 +0000
committer Russell King <rmk+kernel@arm.linux.org.uk> 1326993990 +0000

ARM: fix rcu stalls on SMP platforms

We can stall RCU processing on SMP platforms if a CPU sits in its idle
loop for a long time.  This happens because we don't call irq_enter()
and irq_exit() around generic_smp_call_function_interrupt() and
friends.  Add the necessary calls, and remove the one from within
ipi_timer(), so that they're all in a common place.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>