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Re: Locking model for NAPI drivers

from [Greg Banks] [Permanent Link][Original]
To: "David S. Miller" <davem@xxxxxxxxxxxxx>
Subject: Re: Locking model for NAPI drivers
From: Greg Banks <gnb@xxxxxxxxxxxxxxxxx>
Date: Wed, 01 Jun 2005 18:16:36 +1000
Cc: Linux Network Development list <netdev@xxxxxxxxxxx>
In-reply-to: <20050531.154847.63995530.davem@xxxxxxxxxxxxx>
Organization: Silicon Graphics Inc, Australian Software Group.
References: <20050531.154847.63995530.davem@xxxxxxxxxxxxx>
Sender: netdev-bounce@xxxxxxxxxxx 
On Wed, 2005-06-01 at 08:48, David S. Miller wrote:
> So the idea is, if we can make all of the spinlocks BH locks we'll
> solve a whole bunch of problems:
> [...]
> 2) the driver will actually produce useful profiling data
>    via oprofile and friends since timer interrupts will run
>    even while holding the locks

That would be really, really nice.

Greg.
-- 
Greg Banks, R&D Software Engineer, SGI Australian Software Group.
I don't speak for SGI.
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