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| author | Hugh Dickins <hughd@google.com> | 2011-06-05 22:03:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-06-06 18:00:27 +0900 |
| commit | e0dcd8a05be438b3d2e49ef61441ea3a463663f8 (patch) | |
| tree | a498479e6015180c26c5e5e37214b757b62098b3 /mm | |
| parent | 0d6925d43bd637fe4da7acb7bf1d0b92d38ab34b (diff) | |
| download | linux-e0dcd8a05be438b3d2e49ef61441ea3a463663f8.tar.gz linux-e0dcd8a05be438b3d2e49ef61441ea3a463663f8.tar.bz2 linux-e0dcd8a05be438b3d2e49ef61441ea3a463663f8.zip | |
mm: fix ENOSPC returned by handle_mm_fault()
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>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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 f33bb319b73f..6402458fee38 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1033,10 +1033,10 @@ 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); |