[PATCH] relay: fix timer madness v3

["zhangwei(Jovi)" <jovi.zhangwei@huawei.com>]

Changed from v2:
mod timer interval changed from HZ/10 to jiffies + HZ/10,
as Dan Carpenter suggested.

This patch is based on -mm tree.

Signed-off-by: zhangwei(Jovi) <jovi.zhangwei@huawei.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Dumazet <edumazet@google.com>
---
 kernel/relay.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/relay.c b/kernel/relay.c
index 87af4ce..42d6de3 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -342,7 +342,7 @@ static void wakeup_readers(unsigned long data)
 	/*
 	 * Stupid polling for now:
 	 */
-	mod_timer(&buf->timer, HZ / 10);
+	mod_timer(&buf->timer, jiffies + HZ / 10);
 }

 /**
@@ -360,7 +360,7 @@ static void __relay_reset(struct rchan_buf *buf, unsigned int init)
 		init_waitqueue_head(&buf->read_wait);
 		kref_init(&buf->kref);
 		setup_timer(&buf->timer, wakeup_readers, (unsigned long)buf);
-		mod_timer(&buf->timer, HZ / 10);
+		mod_timer(&buf->timer, jiffies + HZ / 10);
 	} else
 		del_timer_sync(&buf->timer);

-- 
1.7.9.7