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| author | Valentin Schneider <vschneid@redhat.com> | 2024-04-16 17:21:25 +0200 |
|---|---|---|
| committer | Neeraj Upadhyay <neeraj.upadhyay@kernel.org> | 2024-08-15 21:30:42 +0530 |
| commit | 3116a32eb40464de61828787c21f0629a1c26cfa (patch) | |
| tree | 5b41f450632f7b5e29f30b703ddff5df2b9349d9 /Documentation/RCU | |
| parent | 9629936d06d05540d4dc83cee1167422a477a818 (diff) | |
rcu: Rename rcu_dynticks_in_eqs_since() into rcu_watching_snap_stopped_since()
The context_tracking.state RCU_DYNTICKS subvariable has been renamed to
RCU_WATCHING, the dynticks prefix can go.
While at it, this helper is only meant to be called after failing an
earlier call to rcu_watching_snap_in_eqs(), document this in the comments
and add a WARN_ON_ONCE() for good measure.
Signed-off-by: Valentin Schneider <vschneid@redhat.com>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Neeraj Upadhyay <neeraj.upadhyay@kernel.org>
Diffstat (limited to 'Documentation/RCU')
| -rw-r--r-- | Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst index 2d7036ad7476..7163d0def34e 100644 --- a/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst +++ b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst @@ -150,7 +150,7 @@ This case is handled by calls to the strongly ordered is invoked within ``rcu_dynticks_eqs_enter()`` at idle-entry time and within ``rcu_dynticks_eqs_exit()`` at idle-exit time. The grace-period kthread invokes first ``ct_rcu_watching_cpu_acquire()`` -(preceded by a full memory barrier) and ``rcu_dynticks_in_eqs_since()`` +(preceded by a full memory barrier) and ``rcu_watching_snap_stopped_since()`` (both of which rely on acquire semantics) to detect idle CPUs. +-----------------------------------------------------------------------+ |