x86, UV: Remove cpumask_t from the stack

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Remove the large stack-resident cpumask_t from
reset_with_ipi()'s stack by allocating one per uvhub.

Due to the limited size of the stack the potentially huge cpumask_t may
cause stack overrun.  We haven't seen it happen yet, but we need to make it
a practice not to push such structures onto the stack.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Link: http://lkml.kernel.org/r/20110621122242.832589130@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

cpw@sgi.com 2011-06-21 07:21:31 -05:00 • committed by Ingo Molnar

parent a456eaab87

commit 442d392492

2 changed files with 16 additions and 4 deletions

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1

arch/x86/include/asm/uv/uv_bau.h

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19

arch/x86/platform/uv/tlb_uv.c

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