From: Aboo Valappil <aboo@aboo.org>
To: linux-scsi@vger.kernel.org
Subject: About SG Elements of request_buffer
Date: Sun, 15 Oct 2006 22:03:54 +1000 [thread overview]
Message-ID: <453223AA.50409@aboo.org> (raw)
Hi All,
Thanks for all your support for my previous posts.
I have two questions.
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?
2. What are situations reading a scsi disk (using dd ) cause a write to
the disk? When I read my virtual scsi disk using dd command, block
layer is generating lot of SCSI write, as well as reads. Any thoughts?
Besides this observation, everything is working fine.
Thanks in advance.
Aboo
next reply other threads:[~2006-10-15 12:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-15 12:03 Aboo Valappil [this message]
2006-10-15 15:40 ` About SG Elements of request_buffer Douglas Gilbert
2006-10-15 15:53 ` James Bottomley
2006-10-25 9:05 ` Aboo Valappil
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