Messages in this thread | | | Date | Wed, 20 Aug 2008 14:39:08 +0200 | From | Robert Richter <> | Subject | Re: powerpc/cell/oprofile: fix mutex locking for spu-oprofile |
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On 20.08.08 14:05:31, Arnd Bergmann wrote: > On Wednesday 20 August 2008, Robert Richter wrote: > > I am fine with the changes with the exception of removing > > add_event_entry() from include/linux/oprofile.h. Though there is no > > usage of the function also in other architectures anymore, this change > > in the API should be discussed on the oprofile mailing list. Please > > separate the change in a different patch and submit it to the mailing > > list. If there are no objections then, this change can go upstream as > > well. > > As an explanation, the removal of add_event_entry is the whole point > of this patch. add_event_entry must only be called with buffer_mutex > held, but buffer_mutex itself is not exported.
Thanks for pointing this out.
> I'm pretty sure that no other user of add_event_entry exists, as it > was exported specifically for the SPU support and that never worked. > Any other (theoretical) code using it would be broken in the same way > and need a corresponding fix. > > We can easily leave the declaration in place, but I'd recommend removing > it eventually. If you prefer to keep it, how about marking it as > __deprecated?
No, since this is broken by design we remove it. The patch can go upstream as it is.
Thanks,
-Robert
-- Advanced Micro Devices, Inc. Operating System Research Center email: robert.richter@amd.com
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