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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
crypto/algif_skcipher.c
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@@ -212,7 +212,7 @@ static int skcipher_wait_for_wmem(struct sock *sk, unsigned flags)
if (flags & MSG_DONTWAIT)
return -EAGAIN;
set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk);
for (;;) {
if (signal_pending(current))
@@ -258,7 +258,7 @@ static int skcipher_wait_for_data(struct sock *sk, unsigned flags)
return -EAGAIN;
}
set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags);
sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk);
for (;;) {
if (signal_pending(current))
@@ -272,7 +272,7 @@ static int skcipher_wait_for_data(struct sock *sk, unsigned flags)
}
finish_wait(sk_sleep(sk), &wait);
clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags);
sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk);
return err;
}