From: Muli Ben-Yehuda <mulix@mulix.org>
To: Oliver Neukum <oliver@neukum.name>
Cc: linux-kernel@vger.kernel.org
Subject: Re: question on context of kfree_skb()
Date: Tue, 31 Dec 2002 00:26:52 +0200 [thread overview]
Message-ID: <20021230222652.GY28399@alhambra> (raw)
In-Reply-To: <200212301932.15175.oliver@neukum.name>
On Mon, Dec 30, 2002 at 07:32:15PM +0100, Oliver Neukum wrote:
> Hi,
>
> I am getting reports about kfree_skb being called in hard IRQ.
> Which context should it be called in?
kfree_skb() should be called when you are not in hard irq context
(i.e. in_irq() returns false). Same thing for dev_kfree_skb(), which
is a #define for kfree_skb(). Not in hard irq context means you are
either in softirq context (bottom half) or process context.
dev_kfree_skb_irq() should be called when you are in interrupt
context.
dev_kfree_skb_any() should be called when you could be either
executing in interrupt context or not.
--
Muli Ben-Yehuda
"The speed of light really is too slow nowdays." -- Alan Cox
next prev parent reply other threads:[~2002-12-30 22:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-30 18:32 question on context of kfree_skb() Oliver Neukum
2002-12-30 22:26 ` Muli Ben-Yehuda [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-12-30 22:32 Manfred Spraul
2002-12-31 0:57 ` Oliver Neukum
2002-12-31 9:31 ` Manfred Spraul
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