diff options
| author | cpw@sgi.com <cpw@sgi.com> | 2011-06-21 16:21:31 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-06-21 16:50:33 +0400 |
| commit | 442d3924926c62741912d8a930220af253922007 (patch) | |
| tree | 7ea9f7c0e8133037d36e31e7c4f033fae95abcca /arch/x86/include/asm/uv | |
| parent | a456eaab87461e33d94e748565eabd474283a475 (diff) | |
| download | linux-442d3924926c62741912d8a930220af253922007.tar.xz | |
x86, UV: Remove cpumask_t from the stack
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>
Diffstat (limited to 'arch/x86/include/asm/uv')
| -rw-r--r-- | arch/x86/include/asm/uv/uv_bau.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h index fa6a48e264b3..16ce58c6d252 100644 --- a/arch/x86/include/asm/uv/uv_bau.h +++ b/arch/x86/include/asm/uv/uv_bau.h @@ -488,6 +488,7 @@ struct bau_control { struct bau_control *uvhub_master; struct bau_control *socket_master; struct ptc_stats *statp; + cpumask_t *cpumask; unsigned long timeout_interval; unsigned long set_bau_on_time; atomic_t active_descriptor_count; |