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| author | Ingo Molnar <mingo@kernel.org> | 2017-08-11 13:51:59 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-08-11 13:51:59 +0200 |
| commit | 040cca3ab2f6f8b8d26e0e4965abea2b9aa14818 (patch) | |
| tree | 25709ba52ee06fccf4bfbfbf2897bb8cf86da828 /mm/huge_memory.c | |
| parent | ef0758dd0fd70b98b889af26e27f003656952db8 (diff) | |
| parent | b2dbdf2ca1d2803e9cdc46a94554c4a39ffb235a (diff) | |
| download | lwn-040cca3ab2f6f8b8d26e0e4965abea2b9aa14818.tar.gz lwn-040cca3ab2f6f8b8d26e0e4965abea2b9aa14818.zip | |
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.c | 7 |
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. |