Hello!
On 3/1/2017 10:35 PM, Arnaldo Carvalho de Melo wrote:
From: Arnaldo Carvalho de Melo <[email protected]>
When handling problems in cloning a socket with the sk_clone_locked()
function we need to perform several steps that were open coded in it and
its callers, so introduce a routine to avoid this duplication:
sk_free_unlock_clone().
Cc: Cong Wang <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Cc: Eric Dumazet <[email protected]>
Cc: Gerrit Renker <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
[...]
diff --git a/net/core/sock.c b/net/core/sock.c
index 4eca27dc5c94..a3d9bb20f65d 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1540,11 +1540,7 @@ struct sock *sk_clone_lock(const struct sock *sk, const
gfp_t priority)
is_charged = sk_filter_charge(newsk, filter);
if (unlikely(!is_charged || xfrm_sk_clone_policy(newsk, sk))) {
- /* It is still raw copy of parent, so invalidate
- * destructor and make plain sk_free() */
- newsk->sk_destruct = NULL;
- bh_unlock_sock(newsk);
- sk_free(newsk);
+ sk_free_unlock_clone(newsk);
newsk = NULL;
goto out;
}
@@ -1593,6 +1589,16 @@ struct sock *sk_clone_lock(const struct sock *sk, const
gfp_t priority)
}
EXPORT_SYMBOL_GPL(sk_clone_lock);
+void sk_free_unlock_clone(struct sock *sk)
+{
+ /* It is still raw copy of parent, so invalidate
+ * destructor and make plain sk_free() */
Could fix the comment style to the preferred one, while at it:
/* bla
* bla
*/
+ sk->sk_destruct = NULL;
+ bh_unlock_sock(sk);
+ sk_free(sk);
+}
+EXPORT_SYMBOL_GPL(sk_free_unlock_clone);
+
void sk_setup_caps(struct sock *sk, struct dst_entry *dst)
{
u32 max_segs = 1;
[...]
MBR, Sergei
