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authorDavid Howells <dhowells@redhat.com>2012-02-23 13:51:00 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-03-12 10:32:56 -0700
commit0f062a5c0e3b23803c1f5b927ef5e8ba5ec52ff1 (patch)
treef227cf2b25dcef1057891832626e6135778303f0 /mm
parent509c46f3d4fe2c6043ed2a00856ff4f4dce0f13a (diff)
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NOMMU: Don't need to clear vm_mm when deleting a VMA
commit b94cfaf6685d691dc3fab023cf32f65e9b7be09c upstream. Don't clear vm_mm in a deleted VMA as it's unnecessary and might conceivably break the filesystem or driver VMA close routine. Reported-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/nommu.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/mm/nommu.c b/mm/nommu.c
index 8397758..5ff9b35 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -780,8 +780,6 @@ static void delete_vma_from_mm(struct vm_area_struct *vma)
if (vma->vm_next)
vma->vm_next->vm_prev = vma->vm_prev;
-
- vma->vm_mm = NULL;
}
/*