From: Shannon Nelson <shannon.nelson@intel.com>
Date: Sun, 24 Jun 2007 06:09:23 +0000 (-0700)
Subject: [NET]: Re-enable irqs before pushing pending DMA requests
X-Git-Tag: v2.6.22-rc6~2^2~1
X-Git-Url: http://git.samba.org/samba.git/?p=sfrench%2Fcifs-2.6.git;a=commitdiff_plain;h=515e06c4556bd8388db6b2bb2cd8859126932946

[NET]: Re-enable irqs before pushing pending DMA requests

This moves the local_irq_enable() call in net_rx_action() to before
calling the CONFIG_NET_DMA's dma_async_memcpy_issue_pending() rather
than after.  This shortens the irq disabled window and allows for DMA
drivers that need to do their own irq hold.

Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/dev.c b/net/core/dev.c
index 26090621ea6b..ee051bb398a0 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2009,6 +2009,7 @@ static void net_rx_action(struct softirq_action *h)
 		}
 	}
 out:
+	local_irq_enable();
 #ifdef CONFIG_NET_DMA
 	/*
 	 * There may not be any more sk_buffs coming right now, so push
@@ -2022,7 +2023,6 @@ out:
 		rcu_read_unlock();
 	}
 #endif
-	local_irq_enable();
 	return;
 
 softnet_break: