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net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA

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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>
This commit is contained in:
Eric Dumazet 2015-11-29 20:03:10 -08:00 • committed by David S. Miller
parent 5738a09d58
commit 9cd3e072b0
22 changed files with 60 additions and 52 deletions
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6
include/linux/net.h
View file

@ -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