From: "Randazzo, Michael" <RANDAZZO@ddc-web.com>
To: "'Valdis.Kletnieks@vt.edu'" <Valdis.Kletnieks@vt.edu>,
"Randazzo, Michael" <RANDAZZO@ddc-web.com>
Cc: "'linux-kernel@vger.kernel.org'" <linux-kernel@vger.kernel.org>
Subject: RE: Kernel 2.x POSIX Compliance/Conformance...
Date: Wed, 4 Feb 2004 14:44:00 -0500 [thread overview]
Message-ID: <89760D3F308BD41183B000508BAFAC4104B16F34@DDCNYNTD> (raw)
I was using at sem_close(), sem_destroy90, sem_open() ...
according to Posix.4, these are defined in semaphore.h - but
are not defined in /lib/modules/<uname -r>/build/include/semaphore.h
Are Posix.4 calls only for userspace?
M.
-----Original Message-----
From: Valdis.Kletnieks@vt.edu [mailto:Valdis.Kletnieks@vt.edu]
Sent: Wednesday, February 04, 2004 2:41 PM
To: Randazzo, Michael
Cc: 'linux-kernel@vger.kernel.org'
Subject: Re: Kernel 2.x POSIX Compliance/Conformance...
On Wed, 04 Feb 2004 14:30:39 EST, "Randazzo, Michael" <RANDAZZO@ddc-web.com>
said:
> I have made attempts to use (Posix semaphores) in my LKM, but find
> no POSIX support in /lib/modules/<uname -r>/build/include/unistd.h
Attempting to use syscalls intended for userspace while inside the kernel
is generally regarded as Bad Juju.
'man semctl' says:
Under Linux, the function semctl is not a system call, but is imple-
mented via the system call ipc(2).
#define __NR_ipc 117
is what you weren't finding in unistd.h
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next reply other threads:[~2004-02-04 19:44 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-04 19:44 Randazzo, Michael [this message]
2004-02-04 19:58 ` Valdis.Kletnieks
-- strict thread matches above, loose matches on Subject: below --
2004-02-04 20:22 Randazzo, Michael
2004-02-04 21:39 ` Richard B. Johnson
2004-02-04 20:18 Randazzo, Michael
2004-02-04 20:21 ` Valdis.Kletnieks
2004-02-04 20:51 ` Torrey Hoffman
2004-02-04 21:02 ` J.A. Magallon
2004-02-04 19:30 Randazzo, Michael
2004-02-04 19:40 ` Valdis.Kletnieks
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