From: Russell King Date: Thu, 21 Jul 2011 14:14:21 +0000 (+0100) Subject: ARM: CPU hotplug: ensure we migrate all IRQs off a downed CPU X-Git-Tag: v3.1-rc1~258^2~1^4~1 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=78359cb86b8c4c8946f6732eac2757fa5e1d4de4;p=pandora-kernel.git 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 --- Reading git-diff-tree failed