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From: Christoph Rohland <cr@sap.com>
To: aprasad@in.ibm.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: to resize shared memory segment by using shmctl
In-Reply-To: <CA25698F.005C921F.00@d73mta05.au.ibm.com>
Organisation: SAP LinuxLab
Date: 06 Nov 2000 18:13:20 +0100
In-Reply-To: aprasad@in.ibm.com's message of "Mon, 6 Nov 2000 16:04:53 +0530"
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Hi,

On Mon, 6 Nov 2000, aprasad@in.ibm.com wrote:
> Hi, is it possible to change the size of a preexisting shared memory
> segment by using shmctl?
> 
> AIX has comand SHM_SIZE to shmctl to resize any existing shared
> memory segment.  can it be done without recreating the whole thing
> in linux?

No that's not possible in Linux. With 2.4 you can use posix shm and
use ftruncate to resize it.

Greetings
		Christoph

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