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 
    Avoid checking for cpu gone in mm hot path when CONFIG_HOTPLUG_CPU is not
    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));
        /* 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)))
         * i'm not happy about this global shared spinlock in the
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