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| author | Jiang Liu <liuj97@gmail.com> | 2012-03-30 23:11:35 +0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2012-05-24 23:16:33 +0200 |
| commit | f841d792e38f75f5e25b0b66f7b5d235d180a735 (patch) | |
| tree | 52657a4c6b9d2ff9ff6b2b4ed98a9e2dd2b2cecf /arch/x86/platform/uv/uv_irq.c | |
| parent | 151766fce8bee0e3e6076c8b829f9fcc0a2412ae (diff) | |
| download | blackbird-obmc-linux-f841d792e38f75f5e25b0b66f7b5d235d180a735.tar.gz blackbird-obmc-linux-f841d792e38f75f5e25b0b66f7b5d235d180a735.zip | |
x86: Return IRQ_SET_MASK_OK_NOCOPY from irq affinity functions
The interrupt chip irq_set_affinity() functions copy the affinity mask
to irq_data->affinity but return 0, i.e. IRQ_SET_MASK_OK.
IRQ_SET_MASK_OK causes the core code to do another redundant copy.
Return IRQ_SET_MASK_OK_NOCOPY to avoid this.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Cliff Wickman <cpw@sgi.com>
Cc: Jiang Liu <liuj97@gmail.com>
Cc: Keping Chen <chenkeping@huawei.com>
Link: http://lkml.kernel.org/r/1333120296-13563-4-git-send-email-jiang.liu@huawei.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/platform/uv/uv_irq.c')
| -rw-r--r-- | arch/x86/platform/uv/uv_irq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/platform/uv/uv_irq.c b/arch/x86/platform/uv/uv_irq.c index f25c2765a5c9..a22c41656b52 100644 --- a/arch/x86/platform/uv/uv_irq.c +++ b/arch/x86/platform/uv/uv_irq.c @@ -222,7 +222,7 @@ uv_set_irq_affinity(struct irq_data *data, const struct cpumask *mask, if (cfg->move_in_progress) send_cleanup_vector(cfg); - return 0; + return IRQ_SET_MASK_OK_NOCOPY; } /* |
