aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorJeremy Fitzhardinge <jeremy@goop.org>2006-12-13 00:34:49 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-13 09:05:51 -0800
commit90aef12e6dd609e1ad7fb70044eedc78ca55ee5e (patch)
tree35ff39f80d010c548df660d3a3e53c5861741777
parent[PATCH] lockdep: fix possible races while disabling lock-debugging (diff)
downloadlinux-dev-90aef12e6dd609e1ad7fb70044eedc78ca55ee5e.tar.xz
linux-dev-90aef12e6dd609e1ad7fb70044eedc78ca55ee5e.zip
[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 <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--fs/aio.c2
1 files changed, 1 insertions, 1 deletions
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);