diff options
| author | Steven J. Magnani <steve@digidescorp.com> | 2010-11-24 12:56:54 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-03-21 12:44:07 -0700 |
| commit | 5b10d682e08cb68b9d4581057f4719fe53da6245 (patch) | |
| tree | 93ee1187e5da095bce04e1ae77bd0c821074ef30 /mm | |
| parent | 5c1cd3ddd72f5ccd5f40e9e176a9cd69b8fd9506 (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: Greg Kroah-Hartman <gregkh@suse.de>
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 48a2ecfaf059..f55217e411ce 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1643,6 +1643,7 @@ void exit_mmap(struct mm_struct *mm) mm->mmap = vma->vm_next; delete_vma_from_mm(vma); delete_vma(mm, vma); + cond_resched(); } kleave(""); |