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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-01-23 12:09:36 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-02-23 17:24:16 +0000
commit617912440bf20497d23d01ab58076998aced3f15 (patch)
tree69bc841621171decddfd96c060cfa404184fdd2e /arch/arm/common/gic.c
parent1dbfa187dad57d3e17207328ec8bd2d90b4177d2 (diff)
downloadop-kernel-dev-617912440bf20497d23d01ab58076998aced3f15.zip
op-kernel-dev-617912440bf20497d23d01ab58076998aced3f15.tar.gz
ARM: irq migration: ensure migration is handled safely
Ensure appropriate locks are taken to ensure that IRQ migration off the current CPU is race-free. We may have a concurrent set_affinity via procfs running on another CPU in parallel with the IRQ migration, resulting in unpredictable results. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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