On Sun, 27 Nov 2005 18:27:25 +0100,
Andi Kleen <[email protected]> wrote:
>On Mon, Nov 28, 2005 at 02:59:05AM +1100, Keith Owens wrote:
>> On Sun, 27 Nov 2005 14:47:36 +0100,
>> Andi Kleen <[email protected]> wrote:
>> >akpm wrote
>> >> - Introduce a new notifier API which is wholly unlocked
>> >
>> >The old notifiers were already wholly unlocked. So it wouldn't
>> >even need any changes. Just additional locks everywhere.
>>
>> Wrong.
>
>Did you actually read what I wrote?
Of course I did. The whole point is that _ALL_ of the existing
notifier chain callback code is racy[*]. Saying that the code can be
left without any changes is simply ignoring the existing races. They
_ALL_ need to be fixed.
[*] Except for one bit of hand crafted locking in USB.
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