Subject: [PATCH] net/ipv6: Use GFP_ATOMIC when a lock is held

Julia Lawall
2010-05-30T19:48:10Z

From: Julia Lawall <julia@diku.dk>

A spin lock is taken near the beginning of the enclosing function.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
@@

spin_lock(...)
... when != spin_unlock(...)
-GFP_KERNEL
+GFP_ATOMIC
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
net/ipv6/sit.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff -u -p a/net/ipv6/sit.c b/net/ipv6/sit.c
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -358,7 +358,7 @@ ipip6_tunnel_add_prl(struct ip_tunnel *t
goto out;
}

- p = kzalloc(sizeof(struct ip_tunnel_prl_entry), GFP_KERNEL);
+ p = kzalloc(sizeof(struct ip_tunnel_prl_entry), GFP_ATOMIC);
if (!p) {
err = -ENOBUFS;
goto out;