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| author | Ingo Molnar <mingo@kernel.org> | 2014-01-12 20:56:29 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-01-12 20:56:29 +0400 |
| commit | da4540757d35a98a350d6e8d882a64b2d04f8581 (patch) | |
| tree | ad77d8752f5db40497c819f051cbae12effb8163 /mm/rmap.c | |
| parent | cc131eef1cec905b9bdb0be6d7ab3af86f23de98 (diff) | |
| parent | 7e22e91102c6b9df7c4ae2168910e19d2bb14cd6 (diff) | |
| download | linux-da4540757d35a98a350d6e8d882a64b2d04f8581.tar.xz | |
Merge tag 'v3.13-rc8' into x86/ras, to pick up fixes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/rmap.c')
| -rw-r--r-- | mm/rmap.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/rmap.c b/mm/rmap.c index 55c8b8dc9ffb..068522d8502a 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -600,7 +600,11 @@ pte_t *__page_check_address(struct page *page, struct mm_struct *mm, spinlock_t *ptl; if (unlikely(PageHuge(page))) { + /* when pud is not present, pte will be NULL */ pte = huge_pte_offset(mm, address); + if (!pte) + return NULL; + ptl = huge_pte_lockptr(page_hstate(page), mm, pte); goto check; } |