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Diffstat (limited to 'arch/x86/mm/tlb.c')
-rw-r--r--arch/x86/mm/tlb.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 8f4cc3dfac32..fe9b9f776361 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -104,10 +104,8 @@ static void flush_tlb_func(void *info)
inc_irq_stat(irq_tlb_count);
- if (f->flush_mm != this_cpu_read(cpu_tlbstate.active_mm))
+ if (f->flush_mm && f->flush_mm != this_cpu_read(cpu_tlbstate.active_mm))
return;
- if (!f->flush_end)
- f->flush_end = f->flush_start + PAGE_SIZE;
count_vm_tlb_event(NR_TLB_REMOTE_FLUSH_RECEIVED);
if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK) {
@@ -135,12 +133,20 @@ void native_flush_tlb_others(const struct cpumask *cpumask,
unsigned long end)
{
struct flush_tlb_info info;
+
+ if (end == 0)
+ end = start + PAGE_SIZE;
info.flush_mm = mm;
info.flush_start = start;
info.flush_end = end;
count_vm_tlb_event(NR_TLB_REMOTE_FLUSH);
- trace_tlb_flush(TLB_REMOTE_SEND_IPI, end - start);
+ if (end == TLB_FLUSH_ALL)
+ trace_tlb_flush(TLB_REMOTE_SEND_IPI, TLB_FLUSH_ALL);
+ else
+ trace_tlb_flush(TLB_REMOTE_SEND_IPI,
+ (end - start) >> PAGE_SHIFT);
+
if (is_uv_system()) {
unsigned int cpu;