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    DateTue, 08 Jan 2002 19:47:28 -0800
    From"H. Peter Anvin" <>
    SubjectRe: [PATCH] DevFS support for /dev/cpu/X/(cpuid|msr)
    Richard Gooch wrote:
    
    >>>
    >>So you chown an entry, then a module is unloaded and reloaded, now
    >>what happens?
    >>
    >>It's the old "virtual filesystem which really wants persistence"
    >>issue again...
    >>
    > 
    > Works beautifully with devfs+devfsd :-)
    > 
    > Permissions get saved elsewhere in the namespace (perhaps even to the
    > underlying /dev) as you chown(2)/chmod(2)/mknod(2), and are restored
    > when entries are (re)created and/or at startup.
    > 
    > My /dev has persistence behaviour which looks like a FS with backing
    > store.
    > 
    
    
    Yes, after quite a few years it finally got in there.  This is a Good 
    Thing[TM].  Now apply the same problem to /proc.
    
    	-hpa
    
    
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