+ nommu-yield-cpu-while-disposing-vm.patch added to -mm tree

+ nommu-yield-cpu-while-disposing-vm.patch added to -mm tree

[akpm]

The patch titled
     nommu: yield CPU while disposing VM
has been added to the -mm tree.  Its filename is
     nommu-yield-cpu-while-disposing-vm.patch

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------------------------------------------------------
Subject: nommu: yield CPU while disposing VM
From: "Steven J. Magnani" <steve@digidescorp.com>

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>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/nommu.c |    1 +
 1 file changed, 1 insertion(+)

diff -puN mm/nommu.c~nommu-yield-cpu-while-disposing-vm mm/nommu.c
--- a/mm/nommu.c~nommu-yield-cpu-while-disposing-vm
+++ a/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("");
_

Patches currently in -mm which might be from steve@digidescorp.com are

nommu-yield-cpu-while-disposing-vm.patch