Re: DoS with POSIX file locks?

[Matthew Wilcox]

On Mon, Mar 20, 2006 at 01:52:39PM +0100, Miklos Szeredi wrote:
> Things look fairly straightforward if the accounting is done in
> files_struct instead of task_struct.  At least for POSIX locks.  I
> haven't looked at flocks or leases yet.

I was thinking that would work, yes.  It might not be worth worrying
about accounting for leases/flocks since each process can only have one
of those per open file anyway.

> steal_locks() might cause problems, but that function should be gotten
> rid of anyway.

I quite agree.  Now we need to find a better way to solve the problem it
papers over.
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