From: James Bottomley <James.Bottomley@SteelEye.com>
To: Aboo Valappil <aboo@aboo.org>
Cc: linux-scsi@vger.kernel.org
Subject: Re: About SG Elements of request_buffer
Date: Sun, 15 Oct 2006 10:53:59 -0500 [thread overview]
Message-ID: <1160927640.3544.2.camel@mulgrave.il.steeleye.com> (raw)
In-Reply-To: <453223AA.50409@aboo.org>
On Sun, 2006-10-15 at 22:03 +1000, Aboo Valappil wrote:
> 1. Is it safe to assume that all the SG elements of request_buffer are
> page aligned? (Except the first one and last one), I mean, it is always
> multiple of pages?
No.
It's an artifact of block sector size >= PAGE_SIZE and the access method
only using pages. It isn't even true of ext3 which does its metadata
through the buffer cache.
James
next prev parent reply other threads:[~2006-10-15 15:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-15 12:03 About SG Elements of request_buffer Aboo Valappil
2006-10-15 15:40 ` Douglas Gilbert
2006-10-15 15:53 ` James Bottomley [this message]
2006-10-25 9:05 ` Aboo Valappil
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