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| author |   Russell King <rmk+kernel@arm.linux.org.uk> | 2011-07-21 15:14:21 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-07-21 15:14:21 +0100 |
| commit | 78359cb86b8c4c8946f6732eac2757fa5e1d4de4 (patch) | |
| tree | 750a896b26ca01b98e8106bef9f2b8a03ac2d32e /tools/perf/scripts/python/bin | |
| parent | ARM: CPU hotplug: pass in proper affinity mask on IRQ migration (diff) | |
| download | linux-dev-78359cb86b8c4c8946f6732eac2757fa5e1d4de4.tar.xz linux-dev-78359cb86b8c4c8946f6732eac2757fa5e1d4de4.zip | |
ARM: CPU hotplug: ensure we migrate all IRQs off a downed CPU
Our selection of interrupts to consider for IRQ migration is sub-
standard. We were potentially including per-CPU interrupts in our
migration strategy, but omitting chained interrupts. This caused
some interrupts to remain on a downed CPU.
We were also trying to migrate interrupts which were not migratable,
resulting in an OOPS.
Instead, iterate over all interrupts, skipping per-CPU interrupts
or interrupts whose affinity does not include the downed CPU, and
attempt to set the affinity for every one else if their chip
implements irq_set_affinity().
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'tools/perf/scripts/python/bin')
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