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| author | Colin Cross <ccross@android.com> | 2010-12-21 18:34:37 -0800 |
|---|---|---|
| committer | Colin Cross <ccross@android.com> | 2010-12-21 18:34:37 -0800 |
| commit | b104a07edb2a319f734ddc4fe04852865d8d9e24 (patch) | |
| tree | a0cd50b3d84ece4d94e366fac4b440e380c2d247 /mm/hugetlb.c | |
| parent | e87ec4d59e1f96381547e614c5279bed63775719 (diff) | |
| parent | a1346c99fc89f2b3d35c7d7e2e4aef8ea4124342 (diff) | |
Merge commit 'v2.6.36.2' into linux-tegra-2.6.36
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index c03273807182..2697806746d0 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2380,8 +2380,11 @@ retry_avoidcopy: * When the original hugepage is shared one, it does not have * anon_vma prepared. */ - if (unlikely(anon_vma_prepare(vma))) + if (unlikely(anon_vma_prepare(vma))) { + /* Caller expects lock to be held */ + spin_lock(&mm->page_table_lock); return VM_FAULT_OOM; + } copy_huge_page(new_page, old_page, address, vma); __SetPageUptodate(new_page); @@ -2665,7 +2668,8 @@ out_page_table_lock: unlock_page(pagecache_page); put_page(pagecache_page); } - unlock_page(page); + if (page != pagecache_page) + unlock_page(page); out_mutex: mutex_unlock(&hugetlb_instantiation_mutex); |