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Message-Id: <20120309190216.984045409@linuxfoundation.org> Date: Fri, 09 Mar 2012 11:02:39 -0800 From: Greg KH <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk, Al Viro <viro@...iv.linux.org.uk>, David Howells <dhowells@...hat.com> Subject: [ 25/68] NOMMU: Dont need to clear vm_mm when deleting a VMA 3.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: David Howells <dhowells@...hat.com> 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@...iv.linux.org.uk> Signed-off-by: David Howells <dhowells@...hat.com> Acked-by: Al Viro <viro@...iv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- mm/nommu.c | 2 -- 1 file changed, 2 deletions(-) --- a/mm/nommu.c +++ b/mm/nommu.c @@ -780,8 +780,6 @@ static void delete_vma_from_mm(struct vm if (vma->vm_next) vma->vm_next->vm_prev = vma->vm_prev; - - vma->vm_mm = NULL; } /* -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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