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From: Andi Kleen <ak@suse.de>
To: Chuck Ebbert <76306.1226@compuserve.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>, Jens Axboe <axboe@suse.de>
Subject: Re: [patch] block: fix queue bounce limit calculation
Date: Sat, 19 Aug 2006 22:58:17 +0200	[thread overview]
Message-ID: <200608192258.17430.ak@suse.de> (raw)
In-Reply-To: <200608190612_MC3-1-C895-98A8@compuserve.com>

On Saturday 19 August 2006 12:11, Chuck Ebbert wrote:
> Queue bounce should start after the max page, not on it.

The page with memory 0xffffffff...0xffffffff+4096 is already
beyond the limit. And 0xffffffff's PFN is 0xffffffff>>PAGE_SHIFT.

I don't see how the patch is correct.

-Andi


  reply	other threads:[~2006-08-19 20:58 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-19 10:11 [patch] block: fix queue bounce limit calculation Chuck Ebbert
2006-08-19 20:58 ` Andi Kleen [this message]
  -- strict thread matches above, loose matches on Subject: below --
2006-08-19 20:17 Chuck Ebbert

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