Messages in this thread | | | Date | Fri, 28 Sep 2007 09:08:47 +0200 | From | Nadia Derbey <> | Subject | Re: [PATCH -mm1 1/2] fixing idr_find() locking |
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Jarek Poplawski wrote: > On Thu, Sep 27, 2007 at 04:33:55PM +0200, Nadia.Derbey@bull.net 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 <Nadia.Derbey@bull.net> > > > Acked-by: Jarek Poplawski <jarkao2@o2.pl> > > PS: there is one big mistake around To/Cc ordering, so I doubt Andrew > will ever sign this... > >
Jarek,
I thought that since you were the one who pointed out the issue I had to put you as the receiver. Next time I'll also add Andrew in the To list. Sorry for that.
Regards, Nadia
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