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| author | Paul Mundt <lethal@linux-sh.org> | 2011-05-23 11:35:33 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2011-05-23 11:35:33 +0900 |
| commit | 8ace5c4698ec8da53e69095596718d5a936433de (patch) | |
| tree | 1f5959b3ac289e3bde420cc14109be0cc518a75a /mm/mmap.c | |
| parent | a375b15164dd9264f724ad941825e52c90145151 (diff) | |
| parent | 71a8638480eb8fb6cfabe2ee9ca3fbc6e3453a14 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index e27e0cf0de0..772140c53ab 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1767,10 +1767,13 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address) size = address - vma->vm_start; grow = (address - vma->vm_end) >> PAGE_SHIFT; - error = acct_stack_growth(vma, size, grow); - if (!error) { - vma->vm_end = address; - perf_event_mmap(vma); + error = -ENOMEM; + if (vma->vm_pgoff + (size >> PAGE_SHIFT) >= vma->vm_pgoff) { + error = acct_stack_growth(vma, size, grow); + if (!error) { + vma->vm_end = address; + perf_event_mmap(vma); + } } } vma_unlock_anon_vma(vma); |