10.12.2021 22:33, Dmitry Osipenko пишет:
>> Not really, they only prevent the race from occurring while
>> notifier_has_unique_priority() is running.
>>
>> If anyone depends on this check for correctness, they need to lock the
>> rwsem, do the check, do the thing depending on the check while
10.12.2021 22:05, Rafael J. Wysocki пишет:
> On Fri, Dec 10, 2021 at 7:52 PM Dmitry Osipenko wrote:
>>
>> 10.12.2021 21:19, Rafael J. Wysocki пишет:
>> ...
+bool atomic_notifier_has_unique_priority(struct atomic_notifier_head *nh,
+ struct notifier_block *n)
+{
+
On Fri, Dec 10, 2021 at 7:52 PM Dmitry Osipenko wrote:
>
> 10.12.2021 21:19, Rafael J. Wysocki пишет:
> ...
> >> +bool atomic_notifier_has_unique_priority(struct atomic_notifier_head *nh,
> >> + struct notifier_block *n)
> >> +{
> >> + unsigned long flags;
> >> + bool
10.12.2021 21:19, Rafael J. Wysocki пишет:
...
>> +bool atomic_notifier_has_unique_priority(struct atomic_notifier_head *nh,
>> + struct notifier_block *n)
>> +{
>> + unsigned long flags;
>> + bool ret;
>> +
>> + spin_lock_irqsave(>lock, flags);
>> + ret =
On Fri, Nov 26, 2021 at 7:02 PM Dmitry Osipenko wrote:
>
> Add atomic/blocking_notifier_has_unique_priority() helpers which return
> true if given handler has unique priority.
>
> Signed-off-by: Dmitry Osipenko
> ---
> include/linux/notifier.h | 5 +++
> kernel/notifier.c| 69
Add atomic/blocking_notifier_has_unique_priority() helpers which return
true if given handler has unique priority.
Signed-off-by: Dmitry Osipenko
---
include/linux/notifier.h | 5 +++
kernel/notifier.c| 69
2 files changed, 74 insertions(+)
