On Oct 25, 2006, at 11:16 PM, der Mouse wrote:

>>>   lrwxrwxrwx  1 feyrer bedienst 0 Oct 25 00:31 /proc/19364/exe -> / 
>>> bin/tcsh
>>>   -r-xr-xr-x  1 root  wheel  298032 Aug 11 02:09 /emul/linux/proc/ 
>>> 13537/exe
>> It's bogus -- it requires a vnode-to-name translation that is not
>> always possible, and, when it is, requires the storage of a great
>> deal of extra information in a frequently accessed datastructure in
>> the kernel.
>
> Howzabout just saving the last-execed pathname?  I conjecture (and it
> is just conjecture) that that's what Linux is really doing anyway.

That is essentially what the namei cache does - the last-used path  
name to get to a given vnode.

-- thorpej