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From: Andrew Morton <akpm@osdl.org>
To: Manfred Spraul <manfred@colorfullife.com>
Cc: linux-arch@vger.kernel.org
Subject: posix message queues
Date: Wed, 7 Apr 2004 12:07:20 -0700	[thread overview]
Message-ID: <20040407120720.6b937deb.akpm@osdl.org> (raw)


Manfred, if/when this gets merged up the long-suffering arch maintainers
might appreciate a little test app to exercise the syscalls which must be
added.  Do you have something suitable at hand?


Also, before we go too far the 64-bit guys may like to comment on the
syscall interface.   For example, this:

struct mq_attr {
	long	mq_flags;	/* message queue flags			*/
	long	mq_maxmsg;	/* maximum number of messages		*/
	long	mq_msgsize;	/* maximum message size			*/
	long	mq_curmsgs;	/* number of messages currently queued	*/
	long	__reserved[4];	/* ignored for input, zeroed for output */
};

looks like it will require emulation for 32-bit apps.  But if we were to
make these __u32 perhaps that could be avoided?

The patches are at

ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.5/2.6.5-mc2/broken-out/mq-01-codemove.patch
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.5/2.6.5-mc2/broken-out/mq-02-syscalls.patch
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.5/2.6.5-mc2/broken-out/mq-03-core-update.patch
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.5/2.6.5-mc2/broken-out/mq-03-core.patch
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.5/2.6.5-mc2/broken-out/mq-04-linuxext-poll.patch
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.5/2.6.5-mc2/broken-out/mq-05-linuxext-mount.patch
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.5/2.6.5-mc2/broken-out/mq-security-fix.patch
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.5/2.6.5-mc2/broken-out/mq-update-01.patch

             reply	other threads:[~2004-04-07 19:05 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-04-07 19:07 Andrew Morton [this message]
2004-04-07 19:15 ` posix message queues Manfred Spraul
2004-04-08  8:17   ` Arnd Bergmann
2004-04-08  8:49     ` Andrew Morton
2004-04-08 14:08     ` Manfred Spraul
2004-04-08 20:24     ` Andrew Morton
2004-04-09 23:45   ` David S. Miller
2004-04-10 11:19     ` Manfred Spraul
2004-04-10 11:53       ` Manfred Spraul
2004-04-10 20:43         ` Arnd Bergmann
  -- strict thread matches above, loose matches on Subject: below --
2004-04-08 22:22 Arnd Bergmann

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