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SUNRPC: remove BUG_ONs from *_reclassify_socket* 

Replace multiple BUG_ON() calls with WARN_ON_ONCE() and early return when
sanity checking socket ownership (lock). The bind call will fail if the
socket was unsuccessfully reclassified.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
wifi-calibration
Weston Andros Adamson 2012-10-23 10:43:39 -04:00 committed by Trond Myklebust
parent 1bd58aaff4
commit 1b7a181907
2 changed files with 9 additions and 4 deletions
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6
net/sunrpc/svcsock.c
View File

@ -84,7 +84,11 @@ static struct lock_class_key svc_slock_key[2];
static void svc_reclassify_socket(struct socket *sock)
{
struct sock *sk = sock->sk;
BUG_ON(sock_owned_by_user(sk));
WARN_ON_ONCE(sock_owned_by_user(sk));
if (sock_owned_by_user(sk))
return;
switch (sk->sk_family) {
case AF_INET:
sock_lock_init_class_and_name(sk, "slock-AF_INET-NFSD",

7
net/sunrpc/xprtsock.c
View File

@ -1746,7 +1746,6 @@ static inline void xs_reclassify_socketu(struct socket *sock)
{
struct sock *sk = sock->sk;
BUG_ON(sock_owned_by_user(sk));
sock_lock_init_class_and_name(sk, "slock-AF_LOCAL-RPC",
&xs_slock_key[1], "sk_lock-AF_LOCAL-RPC", &xs_key[1]);
}
@ -1755,7 +1754,6 @@ static inline void xs_reclassify_socket4(struct socket *sock)
{
struct sock *sk = sock->sk;
BUG_ON(sock_owned_by_user(sk));
sock_lock_init_class_and_name(sk, "slock-AF_INET-RPC",
&xs_slock_key[0], "sk_lock-AF_INET-RPC", &xs_key[0]);
}
@ -1764,13 +1762,16 @@ static inline void xs_reclassify_socket6(struct socket *sock)
{
struct sock *sk = sock->sk;
BUG_ON(sock_owned_by_user(sk));
sock_lock_init_class_and_name(sk, "slock-AF_INET6-RPC",
&xs_slock_key[1], "sk_lock-AF_INET6-RPC", &xs_key[1]);
}
static inline void xs_reclassify_socket(int family, struct socket *sock)
{
WARN_ON_ONCE(sock_owned_by_user(sock->sk));
if (sock_owned_by_user(sock->sk))
return;
switch (family) {
case AF_LOCAL:
xs_reclassify_socketu(sock);