Messages in this thread | | | Date | Mon, 07 Oct 2002 14:16:29 -0700 | From | Andrew Morton <> | Subject | Re: The reason to call it 3.0 is the desktop (was Re: [OT] 2.6 not3.0 - (NUMA)) |
| |
Linus Torvalds wrote: > > On 7 Oct 2002, Alan Cox wrote: > > > > Factoring the uid/gid/pid in actually may help in other ways. If we are > > doing it by pid or by uid we will reduce the interleave of multiple > > files thing you sometimes get > > 'pid' would probably work better than what we have now, even though I bet > it would get confused by a large number of installers (ie "make install" > in just about any project will use multiple different processes to copy > over separate subdirectories. In the X11R6 tree it uses individual "cp" > processes for each file!) > > The session ID would avoid some of that, but they both have a fundamental > problem: neither pid nor session ID is actually saved in any directory > structure, so it's quite hard to use that as a heuristic for whether a new > file should go into the same directory group as the directory it is > created in. > > That's why "uid" would work better.
Sound good to me. At leat this puts a veneer of respectability over decapitating find_group_other(), which is really what we all want to do anyway ;)
> The uid has a different issue, though, > namely the fact that when user directories are created, they are basically > always created as uid 0 first, and then a "chown" - which means that the > user heuristic wouldn't actually trigger at the right time. So the > heuristic couldn't be just "newfile->uid == directory->uid", it would have > to be something better.
Last time, Al suggested that we always use the find_group_other() approach if the directory is being made at the top-level of the filesystem. So if /home is a mountpoint, the user directories get spread out.
I think this, and the UID comparison will be good enough. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |