Re: DoS with POSIX file locks?

Matthew Wilcox
2006-03-20T15:32:02Z

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.