From: Michael Zhu <mylinuxk@yahoo.ca>
To: linux-kernel@vger.kernel.org
Subject: The CURRENT macro
Date: Thu, 3 Jan 2002 16:34:55 -0500 (EST) [thread overview]
Message-ID: <20020103213455.34699.qmail@web14911.mail.yahoo.com> (raw)
In Alessandro Rubini's book Linux Device Driver(Second
Edition), Chatper 12, he said that "By accessing the
fields in the request structure, usually by way of
CURRENT" and "CURRENT is just a pointer into
blk_dev[MAJOR_NR].request_queue". I know CURRENT is
just a macro. Where can I find the definition of this
macro?
I just don't know how to get the struct request from
the request_queue(a request_queue_t struct). CURRENT
points to which field in the
blk_dev[MAJOR_NR].request_queue? Thank you very much.
Michael
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next reply other threads:[~2002-01-03 21:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-03 21:34 Michael Zhu [this message]
2002-01-03 21:48 ` The CURRENT macro Jonathan Corbet
2002-01-03 21:55 ` Arnaldo Carvalho de Melo
2002-01-04 8:03 ` Terje Eggestad
2002-01-03 22:01 ` Richard B. Johnson
2002-01-03 22:14 ` Peter Makholm
2002-01-03 22:55 ` Tom Gall
2002-01-03 22:57 ` Tom Gall
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