diff options
| author | Jan Beulich <[email protected]> | 2011-02-17 15:54:26 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2011-02-18 08:58:00 +0100 |
| commit | 58bff947e2d164c7e5cbf7f485e4b3d4884befeb (patch) | |
| tree | 8ac78b374c6af3700b1e2dc47988bd05922bcf4b | |
| parent | 2a324ce7b79a3a90cc2d4ade5d5f960a99000caa (diff) | |
x86: Eliminate pointless adjustment attempts in fixup_irqs()
Not only when an IRQ's affinity equals cpu_online_mask is there
no need to actually try to adjust the affinity, but also when
it's a subset thereof. This particularly avoids adjustment
attempts during system shutdown to any IRQs bound to CPU#0.
Signed-off-by: Jan Beulich <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Eric W. Biederman <[email protected]>
Cc: Suresh Siddha <[email protected]>
Cc: Gary Hade <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
| -rw-r--r-- | arch/x86/kernel/irq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 387b6a0c9e81..78793efd3180 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -310,7 +310,7 @@ void fixup_irqs(void) data = &desc->irq_data; affinity = data->affinity; if (!irq_has_action(irq) || - cpumask_equal(affinity, cpu_online_mask)) { + cpumask_subset(affinity, cpu_online_mask)) { raw_spin_unlock(&desc->lock); continue; } |