diff options
| author | Steven J. Magnani <steve@digidescorp.com> | 2010-11-24 12:56:54 -0800 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2011-04-17 16:15:52 -0400 |
| commit | e96a9a1244b61425055e8f498a1db40eb5924ac4 (patch) | |
| tree | 1e990e672d257a71c7db6cb74025ac7eb1800078 /mm | |
| parent | 5c0f71147d9b5623db9353002605c9c648870e8d (diff) | |
nommu: yield CPU while disposing VM
commit 04c3496152394d17e3bc2316f9731ee3e8a026bc upstream.
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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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/nommu.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/nommu.c b/mm/nommu.c index 28994ee251c..1fc13c0056e 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1669,6 +1669,7 @@ void exit_mmap(struct mm_struct *mm) mm->mmap = vma->vm_next; delete_vma_from_mm(vma); delete_vma(mm, vma); + cond_resched(); } kleave(""); |