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authorIngo Molnar <mingo@kernel.org>2017-08-11 13:51:59 +0200
committerIngo Molnar <mingo@kernel.org>2017-08-11 13:51:59 +0200
commit040cca3ab2f6f8b8d26e0e4965abea2b9aa14818 (patch)
tree25709ba52ee06fccf4bfbfbf2897bb8cf86da828 /mm/huge_memory.c
parentef0758dd0fd70b98b889af26e27f003656952db8 (diff)
parentb2dbdf2ca1d2803e9cdc46a94554c4a39ffb235a (diff)
Merge branch 'linus' into locking/core, to resolve conflicts
Conflicts: include/linux/mm_types.h mm/huge_memory.c I removed the smp_mb__before_spinlock() like the following commit does: 8b1b436dd1cc ("mm, locking: Rework {set,clear,mm}_tlb_flush_pending()") and fixed up the affected commits. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/huge_memory.c')
-rw-r--r--mm/huge_memory.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index c76a720b936b..ce883459e246 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1497,6 +1497,13 @@ int do_huge_pmd_numa_page(struct vm_fault *vmf, pmd_t pmd)
}
/*
+ * The page_table_lock above provides a memory barrier
+ * with change_protection_range.
+ */
+ if (mm_tlb_flush_pending(vma->vm_mm))
+ flush_tlb_range(vma, haddr, haddr + HPAGE_PMD_SIZE);
+
+ /*
* Since we took the NUMA fault, we must have observed the !accessible
* bit. Make sure all other CPUs agree with that, to avoid them
* modifying the page we're about to migrate.