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(parent: 3de0199) | patch
ARM: fix rcu stalls on SMP platforms
authorRussell King <rmk+kernel@arm.linux.org.uk>
Thu, 19 Jan 2012 15:20:58 +0000 (15:20 +0000)
committerLothar Waßmann <LW@KARO-electronics.de>
Fri, 24 May 2013 06:34:35 +0000 (08:34 +0200)
commitc7cf99455c20c92b02f94aa1c08f7fde08b1066b
treecdd45cf1fc325329ecb79d7c6810ed7cd5512d4atree | snapshot
parent3de019996d31d647815dce91cf9097610defe082commit | diff
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>
arch/arm/kernel/smp.c diff | blob | history
Linux kernel for KaRo TX COM modules