Re: [PATCH 0/2] ALSA: fireworks/firewire-tascam: accessing to user space outside spinlock

[Takashi Sakamoto <o-takashi@sakamocchi.jp>]

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On Aug 30 2016 02:32, Vaishali Thakkar wrote:
> 
> 
> On Saturday 27 August 2016 02:20 AM, Takashi Sakamoto wrote:
>> Hi,
>>
>> In ALSA fireworks driver and firewire-tascam driver, current implementation
>> for hwdep interface have issues for page fault handling. For example,
>> when using single core processor, after executing lock_page() in page fault
>> handler and call task scheduler, then the context never run again, because
>> any interrupts are disabled by these drivers and the context can't catch
>> waiting event. This patchset fixes the issues.
>>
>> The issues were reported by Vaishali Thakkar, with a help of coccinelle.
>> Thanks a lot for his care to these minor drivers.
>> http://mailman.alsa-project.org/pipermail/alsa-devel/2016-August/111887.html
> 
> Hi,
> 
> Just a minor correction here. 'his -> her' :)

I apologize sincerely for my discourtesy...

>> Takashi Sakamoto (2):
>>   ALSA: fireworks: accessing to user space outside spinlock
>>   ALSA: firewire-tascam: accessing to user space outside spinlock
>>
>>  sound/firewire/fireworks/fireworks_hwdep.c | 20 ++++++++++++++-----
>>  sound/firewire/tascam/tascam-hwdep.c       | 32 ++++++++++--------------------
>>  2 files changed, 25 insertions(+), 27 deletions(-)

This weekend, alsa-project.org is out of service, so I cannot post
revised version. As of this morning, it seems to start services so I'll
post them soon.


Thanks :)

Takashi Sakamoto


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