From 43cc7380eced27ee9cafdf89fa32333dc3884e8b Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Fri, 26 Oct 2007 04:23:22 -0700
Subject: [PATCH] [NET] napi: use non-interruptible sleep in napi_disable
The current napi_disable() uses msleep_interruptible() but doesn't
(and can't) exit in case there's a signal, thus ending up doing a
hot spin without a cpu_relax. Use uninterruptible sleep instead.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 811024e311bd1..9b0c8f12373e1 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -390,7 +390,7 @@ static inline void napi_complete(struct napi_struct *n)
static inline void napi_disable(struct napi_struct *n)
{
while (test_and_set_bit(NAPI_STATE_SCHED, &n->state))
- msleep_interruptible(1);
+ msleep(1);
}
/**
--
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