From: "Lyndon Nerenberg (VE6BBM/VE7TFX)" <lyndon@orthanc.ca>
To: 9fans@9fans.net
Subject: [9fans] DMEXCL vs. QTEXCL
Date: Tue, 28 Dec 2010 15:27:19 -0800 [thread overview]
Message-ID: <1d28fe815c8b1c4dba7e9402c94a61f9@gandalf.orthanc.ca> (raw)
Given the overlap between (DM|QT)EXCL, it's not clear to me which
of these is considered the authority for indicating exclusive access.
devusb.c plays with DMEXCL, devcons.c with QTEXCL. I'm assumed the
DMEXCL bit was magically getting propagated down to QTEXCL in
qid.type, but I'll be damned if I can find anything in the kernel that
actually does anything with either of these bits. WTF am I missing?
This should be stunningly obvious. Someone please stun me more than I
am :-P
My interest is in the context of `Chan's.
--lyndon
next reply other threads:[~2010-12-28 23:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-28 23:27 Lyndon Nerenberg (VE6BBM/VE7TFX) [this message]
2010-12-29 14:30 ` C H Forsyth
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