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| author | Ingo Molnar <mingo@kernel.org> | 2016-04-19 10:38:52 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-04-19 10:38:52 +0200 |
| commit | 6666ea558b1f4134291c15ac59366f69c2d1f321 (patch) | |
| tree | 99e4204b51e69a12721123d3bb1912f6ca0a2726 /arch/x86/mm | |
| parent | x86/asm: Make sure verify_cpu() has a good stack (diff) | |
| parent | Linux 4.6-rc4 (diff) | |
| download | linux-6666ea558b1f4134291c15ac59366f69c2d1f321.tar.xz linux-6666ea558b1f4134291c15ac59366f69c2d1f321.zip | |
Merge tag 'v4.6-rc4' into x86/asm, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/mm')
| -rw-r--r-- | arch/x86/mm/tlb.c | 14 |
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; |