OSDN Git Service

arm64: Only enable local interrupts after the CPU is marked online
authorCatalin Marinas <catalin.marinas@arm.com>
Fri, 19 Jul 2013 14:08:15 +0000 (15:08 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 9 Jan 2014 20:24:26 +0000 (12:24 -0800)
commit81ca15a3e04961b54d4a0b395e681bffb6cfbc68
treee89dbc7964f4900acf51fe0cc169289c4a26d29f
parent08518f6fc6055cc72ea29bf35d6574a930674d7c
arm64: Only enable local interrupts after the CPU is marked online

commit 53ae3acd4390ffeecb3a11dbd5be347b5a3d98f2 upstream.

There is a slight chance that (timer) interrupts are triggered before a
secondary CPU has been marked online with implications on softirq thread
affinity.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Kirill Tkhai <tkhai@yandex.ru>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/arm64/kernel/smp.c