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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-11 18:45:21 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-11 18:45:21 +0100 |
| commit | 254c44ea822066e24ab5efbdff1e43b8fe45ae76 (patch) | |
| tree | 547f6fd4ce1bd6dba6a5cc5184df28501d550795 /mm/mmap.c | |
| parent | 7b76415375ba91f5a06f8d5179278c03d6151d16 (diff) | |
| parent | 6ac77e469e991e9dd91b28e503fa24b5609eedba (diff) | |
Merge branch 'gic-fasteoi' of git://linux-arm.org/linux-2.6-wd into devel-stable
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); |