From 971275662040beef8f73f8e5dbcfb3d76a14bf04 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 13 Nov 2014 18:11:18 +0800 Subject: [PATCH] netlink: Move mutex_is_held under PROVE_LOCKING The rhashtable function mutex_is_held is only used when PROVE_LOCKING is enabled. This patch modifies netlink so that we can rhashtable.h itself can later make mutex_is_held optional depending on PROVE_LOCKING. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/netlink/af_netlink.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 580b79452bec..53b8ea793191 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -114,14 +114,14 @@ static atomic_t nl_table_users = ATOMIC_INIT(0); DEFINE_MUTEX(nl_sk_hash_lock); EXPORT_SYMBOL_GPL(nl_sk_hash_lock); +#ifdef CONFIG_PROVE_LOCKING static int lockdep_nl_sk_hash_is_held(void) { -#ifdef CONFIG_LOCKDEP if (debug_locks) return lockdep_is_held(&nl_sk_hash_lock) || lockdep_is_held(&nl_table_lock); -#endif return 1; } +#endif static ATOMIC_NOTIFIER_HEAD(netlink_chain); @@ -3133,7 +3133,9 @@ static int __init netlink_proto_init(void) .max_shift = 16, /* 64K */ .grow_decision = rht_grow_above_75, .shrink_decision = rht_shrink_below_30, +#ifdef CONFIG_PROVE_LOCKING .mutex_is_held = lockdep_nl_sk_hash_is_held, +#endif }; if (err != 0) -- 2.11.0