Re: RFC - tree quotas for Linux (2.4.12, ext2)

From: Albert D. Cahalan (acahalan@cs.uml.edu)
Date: Thu Oct 25 2001 - 01:15:59 EST


Jesse Pollard writes:

> There still remains the problem of hard links... They could be counted
> in two or more trees as long as two or more trees exist on one filesystem.

Obvious fix: prohibit hard links across tree quota boundries,
including any that might be created by a rename.

It is an admin error to enable tree quotas on trees that
have existing hard links.

While doing that, a sysctl or mount option to enable/disable hard
linking to other people's files would be nice. Default to stopping
the "feature" IMHO.

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