On Thu, Jun 22, 2006 at 12:54:32PM +0200, Nicolai Johannes wrote:
> Concerning the reopen problem of files created in world writable
> directories: One may use the following algorithm: First compute the
> permissions of the newly created file. For every permission granted
> to the user or group, check whether the corresponding
> identity-privilege is set. If not, the permission also has to be
> granted for everyone. If this is not the case, file creation is
> denied.
I was thinking of caching the {vfs, inode #, gen#, pid} and using that
to allow such processes to re-open files they _recently_ (the cache
should have LRU/LFU eviction) opened.
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