linux-kernel - [PATCH] e1000: Use deferrable timer for watchdog

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Message-ID: <Pine.LNX.4.64.0712182040470.3616@mini.warudkars.net>
Date:	Tue, 18 Dec 2007 20:46:48 -0500 (EST)
From:	Parag Warudkar <parag.warudkar@...il.com>
To:	linux.nics@...el.com, netdev@...r.kernel.org
cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Subject: [PATCH] e1000: Use deferrable timer for watchdog


Use deferrable timer for watchdog. Reduces wakeups from idle per second.

Signed-off-by: Parag Warudkar <parag.warudkar@...il.com>

--- linux-2.6/drivers/net/e1000/e1000_main.c	2007-12-07 10:04:39.000000000 -0500
+++ linux-2.6-work/drivers/net/e1000/e1000_main.c	2007-12-18 20:38:38.000000000 -0500
@@ -1030,7 +1030,7 @@
  	adapter->tx_fifo_stall_timer.function = &e1000_82547_tx_fifo_stall;
  	adapter->tx_fifo_stall_timer.data = (unsigned long) adapter;

-	init_timer(&adapter->watchdog_timer);
+	init_timer_deferrable(&adapter->watchdog_timer);
  	adapter->watchdog_timer.function = &e1000_watchdog;
  	adapter->watchdog_timer.data = (unsigned long) adapter;

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