linux-kernel - [PATCH v2 3/3] hw_random: increase schedule timeout in rng_dev

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Date:	Tue, 16 Sep 2014 00:02:29 +0800
From:	Amos Kong <akong@...hat.com>
To:	virtualization@...ts.linux-foundation.org
Cc:	kvm@...r.kernel.org, herbert@...dor.apana.org.au, m@...s.ch,
	mb@...sch.de, mpm@...enic.com, rusty@...tcorp.com.au,
	amit.shah@...hat.com, linux-kernel@...r.kernel.org
Subject: [PATCH v2 3/3] hw_random: increase schedule timeout in rng_dev_read()

This patch increases the schedule timeout to 10 jiffies, it's more
appropriate, then other takes can easy to hold the mutex lock.

Signed-off-by: Amos Kong <akong@...hat.com>
---
 drivers/char/hw_random/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 263a370..b5d1b6f 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -195,7 +195,7 @@ static ssize_t rng_dev_read(struct file *filp, char __user *buf,
 
 		mutex_unlock(&rng_mutex);
 
-		schedule_timeout_interruptible(1);
+		schedule_timeout_interruptible(10);
 
 		if (signal_pending(current)) {
 			err = -ERESTARTSYS;
-- 
1.9.3

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