On Fri, 28 Sep 2007 08:31:44 +0200 Jarek Poplawski <[email protected]> wrote:
> On Thu, Sep 27, 2007 at 04:33:55PM +0200, [email protected] wrote:
> > [PATCH 01/02]
> >
> >
> > This is a patch that fixes the way idr_find() used to be called in ipc_lock():
> > in all the paths that don't imply an update of the ipcs idr, it was called
> > without the idr tree being locked.
> >
> > The changes are:
> > . in ipc_ids, the mutex has been changed into a reader/writer semaphore.
> > . ipc_lock() now takes the mutex as a reader during the idr_find().
> > . a new routine ipc_lock_down() has been defined: it doesn't take the
> > mutex, assuming that it is being held by the caller. This is the routine
> > that is now called in all the update paths.
> >
> >
> > Signed-off-by: Nadia Derbey <[email protected]>
>
> Acked-by: Jarek Poplawski <[email protected]>
thanks.
> PS: there is one big mistake around To/Cc ordering, so I doubt Andrew
> will ever sign this...
Noe, I received and applied it earlier today.
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