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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-01-19 15:20:58 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-16 08:47:36 -0700 |
| commit | d1877392b4dce5d4c74d329777980d2a3ccede99 (patch) | |
| tree | 115e10ba46f06e4f0780f25c1518bfdcd5c1d86f /arch/xtensa | |
| parent | a6218ee909f993a8bd5138a5eb1bde620c12a2a9 (diff) | |
ARM: fix rcu stalls on SMP platforms
commit 7deabca0acfe02b8e18f59a4c95676012f49a304 upstream.
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>
[add irq_enter()/irq_exit() in do_local_timer]
Signed-off-by: UCHINO Satoshi <satoshi.uchino@toshiba.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/xtensa')
0 files changed, 0 insertions, 0 deletions