J. Bruce Fields <[email protected]> wrote:
> > At the moment, yes. Don't the POSIX and flock lock-handling routines in the
> > kernel normally do that anyway?
>
> No, they'd upgrade in that case.
I just checked. The OpenAFS server supports neither lock upgrading nor lock
downgrading. Attempts to do either incur an abort with code 0x02f6df0a
(which I believe to be equivalent to EAGAIN).
This means that I can't practically support lock upgrading. Lock downgrading
I can emulate by handing apparent readlocks to local processes whilst holding
a writelock on the server.
David
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