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Date: Mon, 6 Jan 2003 17:43:32 +0100
From: Alex Riesen <fork0@users.sf.net>
To: Doug McNaught <doug@mcnaught.org>
Cc: Dirk Bull <dirkbull102@hotmail.com>,
       linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: shmat problem
Message-ID: <20030106164332.GA16131@steel>
Reply-To: Alex Riesen <fork0@users.sf.net>
References: <20030106162251.GA15900@steel> <m3wuligrqg.fsf@varsoon.wireboard.com>
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Doug McNaught, Mon, Jan 06, 2003 17:36:39 +0100:
> > You have to add SHM_REMAP to shmat flags (see definitions of SHM_ flags).
> Hmm, the manpage (on RH7.3 at least) doesn't mention SHM_REMAP.  Nice
> to know about it.

RH7.3 manpage is quiet old, btw.

Linux manpages-1.54 (Dec 30 2002):

   The  (Linux-specific) SHM_REMAP flag may be asserted in shmflg to indi-
   cate that the mapping of the segment should replace any  existing  map-
   ping  in  the  range starting at shmaddr and continuing for the size of
   the segment.  (Normally an EINVAL  error  would  result  if  a  mapping
   already  exists in this address range.)  In this case, shmaddr must not
   be NULL.

-alex
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