* [PATCH 10/10] af_unix: use freezable blocking calls in read
[not found] <1367271946-7239-1-git-send-email-ccross@android.com>
@ 2013-04-29 21:45 ` Colin Cross
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From: Colin Cross @ 2013-04-29 21:45 UTC (permalink / raw)
To: linux-pm
Cc: linux-kernel, Rafael J. Wysocki, arve, Colin Cross,
David S. Miller, Eric Dumazet, Al Viro, Eric W. Biederman,
Gao feng, netdev
Avoid waking up every thread sleeping in read call on an AF_UNIX
socket during suspend and resume by calling a freezable blocking
call.
Signed-off-by: Colin Cross <ccross@android.com>
---
net/unix/af_unix.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 2db702d..2bcac57 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -114,6 +114,7 @@
#include <linux/mount.h>
#include <net/checksum.h>
#include <linux/security.h>
+#include <linux/freezer.h>
struct hlist_head unix_socket_table[2 * UNIX_HASH_SIZE];
EXPORT_SYMBOL_GPL(unix_socket_table);
@@ -1880,7 +1881,7 @@ static long unix_stream_data_wait(struct sock *sk, long timeo)
set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags);
unix_state_unlock(sk);
- timeo = schedule_timeout(timeo);
+ timeo = freezable_schedule_timeout(timeo);
unix_state_lock(sk);
clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags);
}
--
1.8.2.1
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2013-04-29 21:45 ` [PATCH 10/10] af_unix: use freezable blocking calls in read Colin Cross
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