diff options
| author | Hugh Dickins <hughd@google.com> | 2011-06-05 22:03:13 -0700 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2012-05-17 11:20:43 -0400 |
| commit | 411ddb158e3e9eb8c03994551d21c9a2d4f6652e (patch) | |
| tree | 83d2981cade4688a82fe9604e57baf38f770ed26 /mm | |
| parent | 697b4f1473ddc06a0fb77d80281cf57f5fcf5b0a (diff) | |
mm: fix ENOSPC returned by handle_mm_fault()
commit e0dcd8a05be438b3d2e49ef61441ea3a463663f8 upstream.
Al Viro observes that in the hugetlb case, handle_mm_fault() may return
a value of the kind ENOSPC when its caller is expecting a value of the
kind VM_FAULT_SIGBUS: fix alloc_huge_page()'s failure returns.
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/hugetlb.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 4c9e6bbf377..2583bbe60f9 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1026,10 +1026,10 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma, */ chg = vma_needs_reservation(h, vma, addr); if (chg < 0) - return ERR_PTR(chg); + return ERR_PTR(-VM_FAULT_OOM); if (chg) if (hugetlb_get_quota(inode->i_mapping, chg)) - return ERR_PTR(-ENOSPC); + return ERR_PTR(-VM_FAULT_SIGBUS); spin_lock(&hugetlb_lock); page = dequeue_huge_page_vma(h, vma, addr, avoid_reserve); |