Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e8a72ffa3aa618fb25b5727c0e0ae939d30d66c0
Commit: e8a72ffa3aa618fb25b5727c0e0ae939d30d66c0
Parent: 141a892f57972b01891df7036f567a70459c19ac
Author: Keshavamurthy, Anil S <[EMAIL PROTECTED]>
AuthorDate: Wed May 2 19:27:18 2007 +0200
Committer: Andi Kleen <[EMAIL PROTECTED]>
CommitDate: Wed May 2 19:27:18 2007 +0200
[PATCH] i386: avoid checking for cpu gone when CONFIG_HOTPLUG_CPU not
defined
Avoid checking for cpu gone in mm hot path when CONFIG_HOTPLUG_CPU is not
defined.
Signed-off-by: Anil S Keshavamurthy <[EMAIL PROTECTED]>
Signed-off-by: Andi Kleen <[EMAIL PROTECTED]>
Cc: Andi Kleen <[EMAIL PROTECTED]>
Cc: Gautham R Shenoy <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---
arch/i386/kernel/smp.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c
index f866710..f98c3ff 100644
--- a/arch/i386/kernel/smp.c
+++ b/arch/i386/kernel/smp.c
@@ -359,10 +359,12 @@ void native_flush_tlb_others(const cpumask_t *cpumaskp,
struct mm_struct *mm,
BUG_ON(cpu_isset(smp_processor_id(), cpumask));
BUG_ON(!mm);
+#ifdef CONFIG_HOTPLUG_CPU
/* If a CPU which we ran on has gone down, OK. */
cpus_and(cpumask, cpumask, cpu_online_map);
- if (cpus_empty(cpumask))
+ if (unlikely(cpus_empty(cpumask)))
return;
+#endif
/*
* i'm not happy about this global shared spinlock in the
-
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