linux-kernel - Re: [patch -mm 2/4] mqueue namespace : add unshare support

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Message-ID: <474E944C.4020809@fr.ibm.com>
Date:	Thu, 29 Nov 2007 11:28:28 +0100
From:	Cedric Le Goater <clg@...ibm.com>
To:	Pavel Emelyanov <xemul@...nvz.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Containers <containers@...ts.osdl.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: [patch -mm 2/4] mqueue namespace : add unshare support

>> Index: 2.6.24-rc3-mm2/include/linux/sched.h
>> ===================================================================
>> --- 2.6.24-rc3-mm2.orig/include/linux/sched.h
>> +++ 2.6.24-rc3-mm2/include/linux/sched.h
>> @@ -27,6 +27,7 @@
>>  #define CLONE_NEWUSER		0x10000000	/* New user namespace */
>>  #define CLONE_NEWPID		0x20000000	/* New pid namespace */
>>  #define CLONE_NEWNET		0x40000000	/* New network namespace */
>> +#define CLONE_NEWMQ		0x80000000	/* New posix mqueue namespace */
> 
> That's it :) We've run out of clone flags on 32-bit platforms :(

yes. 

I have been giving some thoughts to a clone2() to extend the flags but
andrew is preparing to recycle CLONE_DETACHED and CLONE_STOPPED for
2.6.26. Some we might have some more time in front of us.

C.
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