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| author | Jiri Kosina <jkosina@suse.cz> | 2010-12-10 15:19:18 +0100 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-12-10 15:19:18 +0100 |
| commit | 2ade0c1d9d93b7642212657ef76f4a1e30233711 (patch) | |
| tree | 63bc720c0ffe5f4760cac4ed617b9870b050175e /net/ipv4/gre.c | |
| parent | 504499f22c08a03e2e19dc88d31aa0ecd2ac815e (diff) | |
| parent | 6313e3c21743cc88bb5bd8aa72948ee1e83937b6 (diff) | |
Merge branch 'master' into upstream
Diffstat (limited to 'net/ipv4/gre.c')
| -rw-r--r-- | net/ipv4/gre.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/ipv4/gre.c b/net/ipv4/gre.c index caea6885fdbd..c6933f2ea310 100644 --- a/net/ipv4/gre.c +++ b/net/ipv4/gre.c @@ -22,7 +22,7 @@ #include <net/gre.h> -static const struct gre_protocol *gre_proto[GREPROTO_MAX] __read_mostly; +static const struct gre_protocol __rcu *gre_proto[GREPROTO_MAX] __read_mostly; static DEFINE_SPINLOCK(gre_proto_lock); int gre_add_protocol(const struct gre_protocol *proto, u8 version) @@ -51,7 +51,8 @@ int gre_del_protocol(const struct gre_protocol *proto, u8 version) goto err_out; spin_lock(&gre_proto_lock); - if (gre_proto[version] != proto) + if (rcu_dereference_protected(gre_proto[version], + lockdep_is_held(&gre_proto_lock)) != proto) goto err_out_unlock; rcu_assign_pointer(gre_proto[version], NULL); spin_unlock(&gre_proto_lock); |