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net: Generalise wq_has_sleeper helper

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The memory barrier in the helper wq_has_sleeper is needed by just
about every user of waitqueue_active.  This patch generalises it
by making it take a wait_queue_head_t directly.  The existing
helper is renamed to skwq_has_sleeper.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu
2015-11-26 13:55:39 +08:00
committed by David S. Miller
parent c52fd05a2f
commit 1ce0bf50ae
13 changed files with 44 additions and 28 deletions
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4
crypto/algif_skcipher.c
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@@ -238,7 +238,7 @@ static void skcipher_wmem_wakeup(struct sock *sk)
rcu_read_lock();
wq = rcu_dereference(sk->sk_wq);
if (wq_has_sleeper(wq))
if (skwq_has_sleeper(wq))
wake_up_interruptible_sync_poll(&wq->wait, POLLIN |
POLLRDNORM |
POLLRDBAND);
@@ -288,7 +288,7 @@ static void skcipher_data_wakeup(struct sock *sk)
rcu_read_lock();
wq = rcu_dereference(sk->sk_wq);
if (wq_has_sleeper(wq))
if (skwq_has_sleeper(wq))
wake_up_interruptible_sync_poll(&wq->wait, POLLOUT |
POLLRDNORM |
POLLRDBAND);