From 90aef12e6dd609e1ad7fb70044eedc78ca55ee5e Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Wed, 13 Dec 2006 00:34:49 -0800 Subject: [PATCH] Use activate_mm() in fs/aio.c:use_mm() activate_mm() is not the right thing to be using in use_mm(). It should be switch_mm(). On normal x86, they're synonymous, but for the Xen patches I'm adding a hook which assumes that activate_mm is only used the first time a new mm is used after creation (I have another hook for dealing with dup_mm). I think this use of activate_mm() is the only place where it could be used a second time on an mm. >From a quick look at the other architectures I think this is OK (most simply implement one in terms of the other), but some are doing some subtly different stuff between the two. Acked-by: David Miller Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/aio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/aio.c b/fs/aio.c index d3a6ec2c9627..5f577a63bdf0 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -586,7 +586,7 @@ static void use_mm(struct mm_struct *mm) * Note that on UML this *requires* PF_BORROWED_MM to be set, otherwise * it won't work. Update it accordingly if you change it here */ - activate_mm(active_mm, mm); + switch_mm(active_mm, mm, tsk); task_unlock(tsk); mmdrop(active_mm); -- cgit v1.2.3-59-g8ed1b