Time to merge GFS? [LWN.net]

Time to merge GFS?

Posted Aug 11, 2005 10:25 UTC (Thu) by dw (subscriber, #12017)
Parent article: Time to merge GFS?

As pointed out in the article, this symlink content scanning is completely unnecessary bloat, whos functionality can be accomplished through other functionality already available in the kernel.

@hostname  Boot-time symlink or bind mount
@mach      Boot-time symlink or bind mount
@os        Boot-time symlink or bind mount
@uid       Private namespaces

I built a cluster a few years back that booted 36 completely diskless nodes off a single shared readonly NFS root. This involved about 5 lines of bindmounting and tmpfs, along with commenting out fsck checks and suchnot. That cluster is still operational, sitting in a room about 10 yards away. :)

The problem has already been solved. Please, no more bloat!

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Time to merge GFS?

Posted Aug 11, 2005 11:33 UTC (Thu) by penberg (subscriber, #30234) [Link]

> The problem has already been solved. Please, no more bloat!.

It has already been taken out of GFS2 code by the developers.

Time to merge GFS?

Posted Aug 11, 2005 17:49 UTC (Thu) by iabervon (subscriber, #722) [Link]

It gets a bit tricky if you've got a couple hundred symlinks bin -> @os/bin in different directories. The point with using symlinks for it is that regular users can create these links without suid programs when they want portions of their home directories to behave differently on different hosts.

Of course, this should probably be an aspect of namespaces, such that it applies to everything, but only if you've enabled it.