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authorEric Dumazet <edumazet@google.com>2015-11-29 20:03:10 -0800
committerDavid S. Miller <davem@davemloft.net>2015-12-01 15:45:05 -0500
commit9cd3e072b0be17446e37d7414eac8a3499e0601e (patch)
tree83c6aac4a5164b4854a5d5d5deba1a513eee7157 /include
parent5738a09d58d5ad2871f1f9a42bf6a3aa9ece5b3c (diff)
net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA
This patch is a cleanup to make following patch easier to review. Goal is to move SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA from (struct socket)->flags to a (struct socket_wq)->flags to benefit from RCU protection in sock_wake_async() To ease backports, we rename both constants. Two new helpers, sk_set_bit(int nr, struct sock *sk) and sk_clear_bit(int net, struct sock *sk) are added so that following patch can change their implementation. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/net.h6
-rw-r--r--include/net/sock.h10
2 files changed, 13 insertions, 3 deletions
diff --git a/include/linux/net.h b/include/linux/net.h
index 70ac5e28e6b7..f514e4dd5521 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -34,8 +34,8 @@ struct inode;
struct file;
struct net;
-#define SOCK_ASYNC_NOSPACE 0
-#define SOCK_ASYNC_WAITDATA 1
+#define SOCKWQ_ASYNC_NOSPACE 0
+#define SOCKWQ_ASYNC_WAITDATA 1
#define SOCK_NOSPACE 2
#define SOCK_PASSCRED 3
#define SOCK_PASSSEC 4
@@ -96,7 +96,7 @@ struct socket_wq {
* struct socket - general BSD socket
* @state: socket state (%SS_CONNECTED, etc)
* @type: socket type (%SOCK_STREAM, etc)
- * @flags: socket flags (%SOCK_ASYNC_NOSPACE, etc)
+ * @flags: socket flags (%SOCK_NOSPACE, etc)
* @ops: protocol specific socket operations
* @file: File back pointer for gc
* @sk: internal networking protocol agnostic socket representation
diff --git a/include/net/sock.h b/include/net/sock.h
index 7f89e4ba18d1..c155d09d8af4 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2005,6 +2005,16 @@ static inline unsigned long sock_wspace(struct sock *sk)
return amt;
}
+static inline void sk_set_bit(int nr, struct sock *sk)
+{
+ set_bit(nr, &sk->sk_socket->flags);
+}
+
+static inline void sk_clear_bit(int nr, struct sock *sk)
+{
+ clear_bit(nr, &sk->sk_socket->flags);
+}
+
static inline void sk_wake_async(struct sock *sk, int how, int band)
{
if (sock_flag(sk, SOCK_FASYNC))