Re: [PATCH 1/2] mm: restrict access to slab files under procfs and sysfs

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On Tue, Sep 27, 2011 at 13:08 -0500, Christoph Lameter wrote:
> Possible candidates:
> 
> christoph@oldy:~/n/linux-2.6$ grep proc_create mm/*
> mm/swapfile.c:	proc_create("swaps", 0, NULL, &proc_swaps_operations);
> mm/vmstat.c:	proc_create("buddyinfo", S_IRUGO, NULL, &fragmentation_file_operations);
> mm/vmstat.c:	proc_create("pagetypeinfo", S_IRUGO, NULL, &pagetypeinfo_file_ops);
> mm/vmstat.c:	proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
> mm/vmstat.c:	proc_create("zoneinfo", S_IRUGO, NULL, &proc_zoneinfo_file_operations);
> 
> vmstat and zoneinfo in particular give similar information to what is
> revealed through the slab proc files.

Do you know whether these files are actively used?  I don't want to
break tools like "free" or "top".  In this case we'll have to discover
another way to limit this information.

Thank you!

-- 
Vasiliy Kulikov
http://www.openwall.com - bringing security into open computing environments

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