Messages in this thread |  | | Date | Thu, 18 Oct 2001 09:38:47 +0100 (BST) | From | James Sutherland <> | Subject | Re: RFC - tree quotas for Linux (2.4.12, ext2) |
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On Wed, 17 Oct 2001, Ben Greear wrote:
> Neil Brown wrote: > > > > Hi, > > In my ongoing effort to provide centralised file storage that I can > > be proud of, I have put together some code to implement tree quotas. > > > > The idea of a tree quota is that the block and inode usage of a file > > is charged to the (owner of the root of the) tree rather than the > > owner (or group owner) of the file. > > This will (I hope) make life easier for me. There are several > > reasons that I have documented (see URL below) but a good one is that > > they are transparent and predictable. du -s $HOME should *always* > > match your usage according to "quota". > > Err, except maybe when you also own a file in /home/idiot/idiots_unprotected_storage_dir > (This relates not at all to your patch/comments.)
No - "the ... usage of a file is charged to the tree, RATHER THAN THE OWNER OF THE FILE". So, in this case, if you own a file in ~idiot/foo, idiot's quota is charged for the file, not you.
James. -- "Our attitude with TCP/IP is, `Hey, we'll do it, but don't make a big system, because we can't fix it if it breaks -- nobody can.'"
"TCP/IP is OK if you've got a little informal club, and it doesn't make any difference if it takes a while to fix it." -- Ken Olson, in Digital News, 1988
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