From: William Lee Irwin III <wli@holomorphy.com>
To: "David S. Miller" <davem@redhat.com>
Cc: pj@sgi.com, linux-kernel@vger.kernel.org
Subject: Re: Does io_remap_page_range() take 5 or 6 args?
Date: Wed, 18 Aug 2004 19:51:02 -0700 [thread overview]
Message-ID: <20040819025102.GZ11200@holomorphy.com> (raw)
In-Reply-To: <20040818194313.385f4d2f.davem@redhat.com>
On Wed, 18 Aug 2004 19:38:48 -0700 William Lee Irwin III wrote:
>> Oddly, the sparc64 case seems to be the most difficult one for the
>> io_remap_page_range() sweep...
On Wed, Aug 18, 2004 at 07:43:13PM -0700, David S. Miller wrote:
> Oh yeah, that's due to the large TLB mapping support
> isn't it?
It could be ... most of the pain was centered around testing bits
inside of offset & ~PAGE_MASK, which, when the physical address offset
corresponds to is recovered from a pfn, are necessarily all zero.
-- wli
next prev parent reply other threads:[~2004-08-19 2:51 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-18 20:33 Does io_remap_page_range() take 5 or 6 args? Paul Jackson
2004-08-18 20:53 ` William Lee Irwin III
2004-08-18 20:55 ` David S. Miller
2004-08-18 20:56 ` David S. Miller
2004-08-18 21:05 ` William Lee Irwin III
2004-08-18 21:30 ` David S. Miller
2004-08-18 21:40 ` William Lee Irwin III
2004-08-18 22:00 ` William Lee Irwin III
2004-08-18 22:59 ` William Lee Irwin III
2004-08-18 23:16 ` David S. Miller
2004-08-18 23:33 ` William Lee Irwin III
2004-08-19 2:38 ` William Lee Irwin III
2004-08-19 2:43 ` David S. Miller
2004-08-19 2:51 ` William Lee Irwin III [this message]
2004-08-18 21:36 ` Richard B. Johnson
2004-08-18 20:54 ` David S. Miller
2004-08-18 21:15 ` Paul Jackson
2004-08-18 21:35 ` William Lee Irwin III
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