Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86/mm changes from Peter Anvin:
 "The big change here is the patchset by Alex Shi to use INVLPG to flush
  only the affected pages when we only need to flush a small page range.

  It also removes the special INVALIDATE_TLB_VECTOR interrupts (32
  vectors!) and replace it with an ordinary IPI function call."

Fix up trivial conflicts in arch/x86/include/asm/apic.h (added code next
to changed line)

* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/tlb: Fix build warning and crash when building for !SMP
  x86/tlb: do flush_tlb_kernel_range by 'invlpg'
  x86/tlb: replace INVALIDATE_TLB_VECTOR by CALL_FUNCTION_VECTOR
  x86/tlb: enable tlb flush range support for x86
  mm/mmu_gather: enable tlb flush range in generic mmu_gather
  x86/tlb: add tlb_flushall_shift knob into debugfs
  x86/tlb: add tlb_flushall_shift for specific CPU
  x86/tlb: fall back to flush all when meet a THP large page
  x86/flush_tlb: try flush_tlb_single one by one in flush_tlb_range
  x86/tlb_info: get last level TLB entry number of CPU
  x86: Add read_mostly declaration/definition to variables from smp.h
  x86: Define early read-mostly per-cpu macros

2 files changed, 11 insertions, 6 deletions

diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
index f96a5b58a975..ed6642ad03e0 100644
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -86,6 +86,8 @@ struct mmu_gather {
 #ifdef CONFIG_HAVE_RCU_TABLE_FREE
         struct mmu_table_batch  *batch;
 #endif
+        unsigned long           start;
+        unsigned long           end;
         unsigned int            need_flush : 1, /* Did free PTEs */
                                 fast_mode  : 1; /* No batching   */
 
@@ -113,7 +115,8 @@ static inline int tlb_fast_mode(struct mmu_gather *tlb)
 
 void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, bool fullmm);
 void tlb_flush_mmu(struct mmu_gather *tlb);
-void tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end);
+void tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start,
+                                                        unsigned long end);
 int __tlb_remove_page(struct mmu_gather *tlb, struct page *page);
 
 /* tlb_remove_page
diff --git a/include/trace/events/xen.h b/include/trace/events/xen.h
index 92f1a796829e..15ba03bdd7c6 100644
--- a/include/trace/events/xen.h
+++ b/include/trace/events/xen.h
@@ -397,18 +397,20 @@ TRACE_EVENT(xen_mmu_flush_tlb_single,
 
 TRACE_EVENT(xen_mmu_flush_tlb_others,
             TP_PROTO(const struct cpumask *cpus, struct mm_struct *mm,
-                     unsigned long addr),
-            TP_ARGS(cpus, mm, addr),
+                     unsigned long addr, unsigned long end),
+            TP_ARGS(cpus, mm, addr, end),
             TP_STRUCT__entry(
                     __field(unsigned, ncpus)
                     __field(struct mm_struct *, mm)
                     __field(unsigned long, addr)
+                    __field(unsigned long, end)
                     ),
             TP_fast_assign(__entry->ncpus = cpumask_weight(cpus);
                            __entry->mm = mm;
-                           __entry->addr = addr),
-            TP_printk("ncpus %d mm %p addr %lx",
-                      __entry->ncpus, __entry->mm, __entry->addr)
+                           __entry->addr = addr,
+                           __entry->end = end),
+            TP_printk("ncpus %d mm %p addr %lx, end %lx",
+                      __entry->ncpus, __entry->mm, __entry->addr, __entry->end)
         );
 
 TRACE_EVENT(xen_mmu_write_cr3,