On Sun, 24 May 1998 18:40:26 -0400 (EDT) 
 woods@most.weird.com (Greg A. Woods) wrote:

 > This idea is a gross and horrible hack, but may have enough utility to
 > give it merit:  How about a system call to set and clear VTEXT on a
 > file?  Better yet implement a usage counter with increment/decrement
 > calls and check that counter everywhere that VTEXT is checked.  Ld.so
 > would increment this flag on shared libraries that were in use and hooks
 > would be needed to decrement the counter when the libraries are
 > unmapped.  This call would of course be restricted to root (and maybe
 > to the owner of the file too).

I could go for a special flag to mmap(2)...

Jason R. Thorpe                                       thorpej@nas.nasa.gov
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