On 2019-08-20, Petr Mladek wrote:
>> Initialize never-used descriptors as permanently invalid so there
>
> The word "permanently" is confusing. It suggests that it will
> never ever be valid again. I would just remove the word.
Agreed.
>> is no risk of the descriptor unexpectedly being
On (08/20/19 11:23), Petr Mladek wrote:
> > is no risk of the descriptor unexpectedly being determined as
> > valid due to dataring head overflowing/wrapping.
>
> Please, provide more details about the solved race. Is it because
> some reader could have reference to an invalid (reused)
On Thu 2019-08-08 00:32:29, John Ogness wrote:
> Initialize never-used descriptors as permanently invalid so there
The word "permanently" is confusing. It suggests that it will
never ever be valid again. I would just remove the word.
> is no risk of the descriptor unexpectedly being determined
Initialize never-used descriptors as permanently invalid so there
is no risk of the descriptor unexpectedly being determined as
valid due to dataring head overflowing/wrapping.
Signed-off-by: John Ogness
---
kernel/printk/dataring.c | 42 +++---
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