20 Mar
2023
20 Mar
'23
5:06 p.m.
On Thu, 16 Mar 2023, Boqun Feng wrote:
+/*
- lock_sync() - A special annotation for synchronize_{s,}rcu()-like API.
- No actual critical section is created by the APIs annotated with this: these
- APIs are used to wait for one or multiple critical sections (on other CPUs
- or threads), and it means that calling these APIs inside these critical
- sections is potential deadlock.
- This annotation acts as an acqurie+release anontation pair with hardirqoff
^acquire