The commit message should have said:
Fixes: 5b74283ab251b9db55cbbe31d19ca72482103290
(and not what it currently says).
Let me know whether to submit v3.
Nadav
On 3/26/16, 1:25 AM, "Nadav Amit" <namit@xxxxxxxxxx> wrote:
>TLB_REMOTE_SEND_IPI was recently introduced, but it counts bytes instead
>of pages. In addition, it does not report correctly the case in which
>flush_tlb_page flushes a page. Fix it to be consistent with other TLB
>counters.
>
>Fixes: 4595f9620cda8a1e973588e743cf5f8436dd20c6
>
>Signed-off-by: Nadav Amit <namit@xxxxxxxxxx>
>---
> arch/x86/mm/tlb.c | 12 +++++++++---
> 1 file changed, 9 insertions(+), 3 deletions(-)
>
>diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
>index 8f4cc3d..5fb6ada 100644
>--- a/arch/x86/mm/tlb.c
>+++ b/arch/x86/mm/tlb.c
>@@ -106,8 +106,6 @@ static void flush_tlb_func(void *info)
>
> if (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;
>
>--
>2.5.0
>
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