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Re: radix tree implementation for quota ?

On Sun, Nov 28, 2010 at 10:35:21PM +0100, Manuel Bouyer wrote:
> I don't think this would work well for NFS servers, where users have no
> process running on the system doing the limit checks, while there may
> be lots of different UIDs active at the same time. This is exactly my
> use case :)

Keep a reference to the user info area from the in-kernel inode.
Repeated access to the same file should find the inode in memory,
so the data need only be recovered from disk when the uid has
no inodes cached - unlikely.


David Laight:

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