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| author | Steven J. Magnani <steve@digidescorp.com> | 2010-11-24 23:56:54 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-11-25 00:50:38 +0300 |
| commit | 04c3496152394d17e3bc2316f9731ee3e8a026bc (patch) | |
| tree | 1c0a1275a3a3ef3f4aad36fd4cd5500980f5f0d7 | |
| parent | 3a3a1af37f0405d15c0b64a6ce7f4878084442e0 (diff) | |
| download | linux-04c3496152394d17e3bc2316f9731ee3e8a026bc.tar.xz | |
nommu: yield CPU while disposing VM
Depending on processor speed, page size, and the amount of memory a
process is allowed to amass, cleanup of a large VM may freeze the system
for many seconds. This can result in a watchdog timeout.
Make sure other tasks receive some service when cleaning up large VMs.
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Cc: Greg Ungerer <gerg@snapgear.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/nommu.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/nommu.c b/mm/nommu.c index 3613517c7592..27a9ac588516 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1717,6 +1717,7 @@ void exit_mmap(struct mm_struct *mm) mm->mmap = vma->vm_next; delete_vma_from_mm(vma); delete_vma(mm, vma); + cond_resched(); } kleave(""); |