x86: Remove cpumask games in x86/kernel/cpu/intel_cacheinfo.c

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Impact: remove cpumask_t from stack.

We should not try to save and restore cpus_allowed on current.

We can't use work_on_cpu() here, since it's in the hotplug cpu path
(if anyone else tries to get the hotplug lock from a workqueue we
could deadlock against them).

Fortunately, we can just use smp_call_function_single() since the
function can run from an interrupt.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Oleg Nesterov <oleg@tv-sign.ru>

...

This commit is contained in:

Mike Travis 2008-12-16 17:34:03 -08:00

parent 1de88cd4a3

commit b2bb855491

1 changed files with 19 additions and 22 deletions

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arch/x86/kernel/cpu/intel_cacheinfo.c

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