From: Robert Hancock <hancockr@shaw.ca>
To: liangbowen <liangbowen@gmail.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: problem with <asm/semaphore.h>
Date: Sat, 21 Apr 2007 16:57:36 -0600 [thread overview]
Message-ID: <462A96E0.3090006@shaw.ca> (raw)
In-Reply-To: <1177003071.879067.80590@n76g2000hsh.googlegroups.com>
liangbowen wrote:
> maybe you've misunderstood my meaning. I mean the whole <asm/
> semaphore.h> header file has only 4 lines of code in total:
> #ifndef I386_SEMAPHORE_H
> #define I386_SEMAPHORE_H
> #include <linux/linkage.h>
> #endif
>
> it's supposed to have more codes than that. like
> struct semaphore {
> int count;
> int waking;
> int lock ; /* to make waking testing atomic */
> struct wait_queue * wait;
> };
> and the down(), up() functions.
>
> but I can't see any of those codes, not even the #ifdef __KERNEL__
> macro.
>
It does in the kernel version of that header. The userspace version of
that header has everything inside #ifdef __KERNEL__ stripped out.
--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/
next prev parent reply other threads:[~2007-04-21 22:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1176885218.597268.304370@l77g2000hsb.googlegroups.com>
2007-04-19 0:50 ` problem with <asm/semaphore.h> Robert Hancock
[not found] ` <fa.fBTtgscoj66JCf4bIm8v290vCRo@ifi.uio.no>
[not found] ` <fa.w5cKcLCYzl2eiKiQW21MMlLALWM@ifi.uio.no>
[not found] ` <1176961482.904618.250700@e65g2000hsc.googlegroups.com>
2007-04-19 14:26 ` Robert Hancock
[not found] ` <fa.AvTW9UjANJ733AbQtnQmG3hvo7U@ifi.uio.no>
[not found] ` <fa.BgzkXXMJTw3V0hCHG6tJNpgDbkw@ifi.uio.no>
[not found] ` <fa.aUMayTTuQ16UFy6Q+LWR4hiTB1Q@ifi.uio.no>
[not found] ` <fa.633EuMGTHsDpCL9UutDSzsItJUQ@ifi.uio.no>
[not found] ` <1177003071.879067.80590@n76g2000hsh.googlegroups.com>
2007-04-21 22:57 ` Robert Hancock [this message]
2002-06-04 11:41 bonganilinux
2002-06-04 11:44 ` Thomas 'Dent' Mirlacher
-- strict thread matches above, loose matches on Subject: below --
2002-06-04 11:19 Hossein Mobahi
2002-06-04 11:44 ` Shanks
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