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| author | Linus Walleij <linus.walleij@linaro.org> | 2015-12-17 14:57:46 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2015-12-17 14:57:46 +0100 |
| commit | 4dccc93f1e7f4e2fd92a48c40a7ac9211a029352 (patch) | |
| tree | 717a183f0dba200a882126cf095f38e319302c51 /net/socket.c | |
| parent | d4eed63bb8a3749a6cf19bbc98c943fafb4a826d (diff) | |
| parent | 9f9499ae8e6415cefc4fe0a96ad0e27864353c89 (diff) | |
Merge tag 'v4.4-rc5' into devel
Linux 4.4-rc5
Diffstat (limited to 'net/socket.c')
| -rw-r--r-- | net/socket.c | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/net/socket.c b/net/socket.c index dd2c247c99e3..456fadb3d819 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1056,27 +1056,20 @@ static int sock_fasync(int fd, struct file *filp, int on) return 0; } -/* This function may be called only under socket lock or callback_lock or rcu_lock */ +/* This function may be called only under rcu_lock */ -int sock_wake_async(struct socket *sock, int how, int band) +int sock_wake_async(struct socket_wq *wq, int how, int band) { - struct socket_wq *wq; - - if (!sock) - return -1; - rcu_read_lock(); - wq = rcu_dereference(sock->wq); - if (!wq || !wq->fasync_list) { - rcu_read_unlock(); + if (!wq || !wq->fasync_list) return -1; - } + switch (how) { case SOCK_WAKE_WAITD: - if (test_bit(SOCK_ASYNC_WAITDATA, &sock->flags)) + if (test_bit(SOCKWQ_ASYNC_WAITDATA, &wq->flags)) break; goto call_kill; case SOCK_WAKE_SPACE: - if (!test_and_clear_bit(SOCK_ASYNC_NOSPACE, &sock->flags)) + if (!test_and_clear_bit(SOCKWQ_ASYNC_NOSPACE, &wq->flags)) break; /* fall through */ case SOCK_WAKE_IO: @@ -1086,7 +1079,7 @@ call_kill: case SOCK_WAKE_URG: kill_fasync(&wq->fasync_list, SIGURG, band); } - rcu_read_unlock(); + return 0; } EXPORT_SYMBOL(sock_wake_async); |