diff options
| author | David S. Miller <davem@davemloft.net> | 2014-01-18 00:55:41 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-01-18 00:55:41 -0800 |
| commit | 41804420586ab41049a14ab7ef04eaa2280b8647 (patch) | |
| tree | f05b39b0c5f1ed229b073f7a993ef717f9f1a363 /mm | |
| parent | 7b1e46c5a265b142dd05ff3463fa3e0a1f4e4172 (diff) | |
| parent | 7d0d46da750a252371cb747b48ddda27d1047881 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
net/ipv4/tcp_metrics.c
Overlapping changes between the "don't create two tcp metrics objects
with the same key" race fix in net and the addition of the destination
address in the lookup key in net-next.
Minor overlapping changes in bnx2x driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/huge_memory.c | 6 | ||||
| -rw-r--r-- | mm/util.c | 5 |
2 files changed, 7 insertions, 4 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 9c0b17295ba..95d1acb0f3d 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1154,7 +1154,7 @@ alloc: new_page = NULL; if (unlikely(!new_page)) { - if (is_huge_zero_pmd(orig_pmd)) { + if (!page) { ret = do_huge_pmd_wp_zero_page_fallback(mm, vma, address, pmd, orig_pmd, haddr); } else { @@ -1181,7 +1181,7 @@ alloc: count_vm_event(THP_FAULT_ALLOC); - if (is_huge_zero_pmd(orig_pmd)) + if (!page) clear_huge_page(new_page, haddr, HPAGE_PMD_NR); else copy_user_huge_page(new_page, page, haddr, vma, HPAGE_PMD_NR); @@ -1207,7 +1207,7 @@ alloc: page_add_new_anon_rmap(new_page, vma, haddr); set_pmd_at(mm, haddr, pmd, entry); update_mmu_cache_pmd(vma, address, pmd); - if (is_huge_zero_pmd(orig_pmd)) { + if (!page) { add_mm_counter(mm, MM_ANONPAGES, HPAGE_PMD_NR); put_huge_zero_page(); } else { diff --git a/mm/util.c b/mm/util.c index f7bc2096071..808f375648e 100644 --- a/mm/util.c +++ b/mm/util.c @@ -390,7 +390,10 @@ struct address_space *page_mapping(struct page *page) { struct address_space *mapping = page->mapping; - VM_BUG_ON(PageSlab(page)); + /* This happens if someone calls flush_dcache_page on slab page */ + if (unlikely(PageSlab(page))) + return NULL; + if (unlikely(PageSwapCache(page))) { swp_entry_t entry; |