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migration: migrate_vmas should check "vma"

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migrate_vmas() should check "vma" not "vma->vm_next" for for-loop condition.

Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Daisuke Nishimura 2009-02-11 13:04:18 -08:00 committed by Linus Torvalds
parent 17c9d12e12
commit 1001c9fb87
1 changed files with 1 additions and 1 deletions
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2
mm/migrate.c
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@ -1129,7 +1129,7 @@ int migrate_vmas(struct mm_struct *mm, const nodemask_t *to,
struct vm_area_struct *vma;
int err = 0;
for(vma = mm->mmap; vma->vm_next && !err; vma = vma->vm_next) {
for (vma = mm->mmap; vma && !err; vma = vma->vm_next) {
if (vma->vm_ops && vma->vm_ops->migrate) {
err = vma->vm_ops->migrate(vma, to, from, flags);
if (err)