Messages in this thread | | | Date | Wed, 24 Oct 2001 16:34:13 +0100 (BST) | From | James Sutherland <> | Subject | Re: RFC - tree quotas for Linux (2.4.12, ext2) |
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On Wed, 24 Oct 2001, Jan Kara wrote:
> But how do you solve the following: mv <dir> <some_other_dir> > The parent changes. You need to go through all the subdirs of <dir> and change > the TID. This is really hard to get right and to avoid deadlocks > and races... At least it seems to me so.
Provided you are tracking the total size in each directory, it's just a matter of subtracting dir's size from the old parent, and adding it to the new parent. (With suitable checks beforehand to avoid a result which exceeds quota.)
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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