From: C H Forsyth <forsyth@vitanuova.com>
To: 9fans@9fans.net
Subject: Re: [9fans] DMEXCL vs. QTEXCL
Date: Wed, 29 Dec 2010 14:30:21 +0000 [thread overview]
Message-ID: <d38dab1a5e4e2c73ebba84bcaafbe9f0@vitanuova.com> (raw)
In-Reply-To: <1d28fe815c8b1c4dba7e9402c94a61f9@gandalf.orthanc.ca>
Qid.type == mode>>24, and since they should agree, they have equal authority.
it's the file server or the device driver that ensures equality.
dev.c:/^devdir\( does so for many device drivers, based on the type value of the incoming Qid.
it looks like a mistake that devusb.c doesn't set QTEXCL in Qid.type when the mode requires it,
but perhaps devdir should also merge the bits both ways (ie, set qid.type |= mode>>24 as well
as db->mode |= qid.type<<24)
prev parent reply other threads:[~2010-12-29 14:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-28 23:27 Lyndon Nerenberg (VE6BBM/VE7TFX)
2010-12-29 14:30 ` C H Forsyth [this message]
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