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List:       linux-audio-dev
Subject:    [linux-audio-dev] /proc/sys var for mlock group-access in 2.6.6-mm1
From:       Kai Vehmanen <kai.vehmanen () wakkanet ! fi>
Date:       2004-05-21 8:53:03
Message-ID: Pine.LNX.4.44.0405211145470.13260-100000 () vaino ! wakkanet ! fi
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Hi,

this might be old news already, but just in case...:

http://lwn.net/Articles/84566/
--cut--
 The 2.6.6-mm1 tree includes, among many other things, patches which add 
two new /proc/sys variables. They are:

    /proc/sys/vm/hugetlb_shm_group
        If this value is non-zero, it is interpreted as a group ID which 
gives access to the the "huge pages" feature of the 2.6 VM. 

    /proc/sys/vm/mlock_group
        This variable behaves similarly, but it controls access to the 
mlock() system call (which locks memory into physical RAM) instead. 
--cut--

And continues with comments from Andrew:
--cut--
The problem, it seems, is that there are no better solutions on the 
horizon. Says Andrew Morton:

""Capabilities are broken and don't work. Nobody has a clue how to provide 
the required services with SELinux and nobody has any code and we need the 
feature *now* before vendors go shipping even more ghastly stuff. ""
--cut--

This suggests that there is a good chance that realtime-lsm could be
accepted to the mainline kernel tree, if submitted!

--
 http://www.eca.cx
 Audio software for Linux!

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