Messages in this thread | | | Date | Sat, 03 May 2008 13:59:46 -0400 | From | David Collier-Brown <> | Subject | Offtopic to: LogFS merge |
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Linus Torvalds wrote: > The real issue for me wrt a filesystem is the on-disk layout. > > If we know that on-disk structures need change, we shouldn't merge it. It > doesn't matter if that can be worked around with some backwards- > compatibiltiy flag: we should simply not encourage that kind of behaviour.
I agree in particular, but not in principle (;-))
Changing the filesystem format was something that happened at least twice on Multics, on production machines. I happened to be on during one of the changes and didn't even know it was happening until there was a broadcast message warning of poor performance.
I always thought that was cool, and got permission recently to post a colleague's paper on it at http://www.multicians.org/stachour.html
It would be cool if data could change at run-time on Linux, just like security-sensitive code.
--dave -- David Collier-Brown | Always do right. This will gratify Sun Microsystems, Toronto | some people and astonish the rest davecb@sun.com | -- Mark Twain (905) 943-1983, cell: (647) 833-9377, (800) 555-9786 x56583 bridge: (877) 385-4099 code: 506 9191#
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