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authorEric Dumazet <eric.dumazet@gmail.com>2011-11-09 02:07:07 +0400
committerDavid S. Miller <davem@davemloft.net>2011-11-09 02:07:07 +0400
commite56c57d0d3fdbbdf583d3af96bfb803b8dfa713e (patch)
treef415160c8fd39efebfc49d41493cc5b964503482 /net/core/sock.c
parent9ecd04bc04af7df98b3a93c571e31b6ef6a90681 (diff)
downloadlinux-e56c57d0d3fdbbdf583d3af96bfb803b8dfa713e.tar.xz
net: rename sk_clone to sk_clone_lock
Make clear that sk_clone() and inet_csk_clone() return a locked socket. Add _lock() prefix and kerneldoc. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/sock.c')
-rw-r--r--net/core/sock.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/net/core/sock.c b/net/core/sock.c
index 4ed7b1d12f5e..2de9dc295956 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1204,7 +1204,14 @@ void sk_release_kernel(struct sock *sk)
}
EXPORT_SYMBOL(sk_release_kernel);
-struct sock *sk_clone(const struct sock *sk, const gfp_t priority)
+/**
+ * sk_clone_lock - clone a socket, and lock its clone
+ * @sk: the socket to clone
+ * @priority: for allocation (%GFP_KERNEL, %GFP_ATOMIC, etc)
+ *
+ * Caller must unlock socket even in error path (bh_unlock_sock(newsk))
+ */
+struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority)
{
struct sock *newsk;
@@ -1297,7 +1304,7 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority)
out:
return newsk;
}
-EXPORT_SYMBOL_GPL(sk_clone);
+EXPORT_SYMBOL_GPL(sk_clone_lock);
void sk_setup_caps(struct sock *sk, struct dst_entry *dst)
{