diff options
author | Patrick McHardy <kaber@trash.net> | 2011-01-19 23:51:37 +0100 |
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committer | Patrick McHardy <kaber@trash.net> | 2011-01-19 23:51:37 +0100 |
commit | 14f0290ba44de6ed435fea24bba26e7868421c66 (patch) | |
tree | 449d32e4848007e3edbcab14fa8e09fdc66608ed /arch/ia64/kernel/smp.c | |
parent | f5c88f56b35599ab9ff2d3398e0153e4cd4a4c82 (diff) | |
parent | a5db219f4cf9f67995eabd53b81a1232c82f5852 (diff) |
Merge branch 'master' of /repos/git/net-next-2.6
Diffstat (limited to 'arch/ia64/kernel/smp.c')
-rw-r--r-- | arch/ia64/kernel/smp.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c index dabeefe2113..be450a3e987 100644 --- a/arch/ia64/kernel/smp.c +++ b/arch/ia64/kernel/smp.c @@ -293,6 +293,7 @@ smp_flush_tlb_all (void) void smp_flush_tlb_mm (struct mm_struct *mm) { + cpumask_var_t cpus; preempt_disable(); /* this happens for the common case of a single-threaded fork(): */ if (likely(mm == current->active_mm && atomic_read(&mm->mm_users) == 1)) @@ -301,9 +302,15 @@ smp_flush_tlb_mm (struct mm_struct *mm) preempt_enable(); return; } - - smp_call_function_many(mm_cpumask(mm), - (void (*)(void *))local_finish_flush_tlb_mm, mm, 1); + if (!alloc_cpumask_var(&cpus, GFP_ATOMIC)) { + smp_call_function((void (*)(void *))local_finish_flush_tlb_mm, + mm, 1); + } else { + cpumask_copy(cpus, mm_cpumask(mm)); + smp_call_function_many(cpus, + (void (*)(void *))local_finish_flush_tlb_mm, mm, 1); + free_cpumask_var(cpus); + } local_irq_disable(); local_finish_flush_tlb_mm(mm); local_irq_enable(); |