Messages in this thread | | | Date | Tue, 1 Jul 2003 20:15:09 +1000 | Subject | Re: File System conversion -- ideas | From | Stewart Smith <> |
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On Sun, Jun 29, 2003 at 03:48:06PM -0400, rmoser wrote:
> Yeppers. Also that the eventual goal (at least in my mind) is to allow > this to be done on a running r/w filesystem safely, which isn't as tough > a problem as it sounds.
Yes it is. In fact, it is more of a problem then you think.
Think of this simple scenario: a script is running that downloads a kernel patch, applies it to a tree, then renames the directory to $1-$patchname.
Half way through this, during the patch, the backup script comes through and starts to backup the filesystem.
Now - wipe the drive clean at the end and restore it to a sane state.
Doing live things on storage systems without transactions, snapshots or whatever you want to call them is tricky at best. resizing is going to cause headaches.
-- Stewart Smith Vice President, Linux Australia http://www.linux.org.au (personal: http://www.flamingspork.com) - 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/
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