[22/26] rcu: Rename rcu_implicit_dynticks_qs() into rcu_watching_snap_recheck()

Commit Message

Neeraj Upadhyay Aug. 16, 2024, 4:02 a.m. UTC

From: Valentin Schneider <[e-mail]>

The context_tracking.state RCU_DYNTICKS subvariable has been renamed to
RCU_WATCHING, drop the dyntick reference and update the name of this helper
to express that it rechecks rdp->watching_snap after an earlier
rcu_watching_snap_save().

Signed-off-by: Valentin Schneider <[e-mail]>
Reviewed-by: Frederic Weisbecker <[e-mail]>
Signed-off-by: Neeraj Upadhyay <[e-mail]>
---
 Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg | 2 +-
 Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg  | 2 +-
 Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg      | 2 +-
 Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg | 2 +-
 kernel/rcu/tree.c                                            | 4 ++--
 5 files changed, 6 insertions(+), 6 deletions(-)

Patch

diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg
index 13956baf748a..ab9707f04e66 100644
--- a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg
+++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg
@@ -537,7 +537,7 @@ 
        font-style="normal"
        y="-8368.1475"
        x="2463.3262"
-       xml:space="preserve">rcu_implicit_dynticks_qs()</text>
+       xml:space="preserve">rcu_watching_snap_recheck()</text>
   </g>
   <g
      id="g4504"
diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg
index 9de55fbf5be4..e17c3356041a 100644
--- a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg
+++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg
@@ -899,7 +899,7 @@ 
      font-style="normal"
      y="1858.8729"
      x="4414.1836"
-     xml:space="preserve">rcu_implicit_dynticks_qs()</text>
+     xml:space="preserve">rcu_watching_snap_recheck()</text>
   <text
      xml:space="preserve"
      x="14659.87"
diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg
index 286a098b9c42..c43e1ec10774 100644
--- a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg
+++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg
@@ -3029,7 +3029,7 @@ 
        font-style="normal"
        y="38425.035"
        x="-337.79462"
-       xml:space="preserve">rcu_implicit_dynticks_qs()</text>
+       xml:space="preserve">rcu_watching_snap_recheck()</text>
     <text
        xml:space="preserve"
        x="9907.8887"
diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg
index bab69a15c9c2..a92356ce4011 100644
--- a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg
+++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg
@@ -525,7 +525,7 @@ 
        font-style="normal"
        y="-8368.1475"
        x="2463.3262"
-       xml:space="preserve">rcu_implicit_dynticks_qs()</text>
+       xml:space="preserve">rcu_watching_snap_recheck()</text>
     <text
        sodipodi:linespacing="125%"
        style="font-size:192px;font-style:normal;font-weight:bold;line-height:125%;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier"
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 93039414733a..b53b354417ae 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -812,7 +812,7 @@  static int rcu_watching_snap_save(struct rcu_data *rdp)
  *
  * Returns zero otherwise.
  */
-static int rcu_implicit_dynticks_qs(struct rcu_data *rdp)
+static int rcu_watching_snap_recheck(struct rcu_data *rdp)
 {
 	unsigned long jtsq;
 	int ret = 0;
@@ -1998,7 +1998,7 @@  static void rcu_gp_fqs(bool first_time)
 		force_qs_rnp(rcu_watching_snap_save);
 	} else {
 		/* Handle dyntick-idle and offline CPUs. */
-		force_qs_rnp(rcu_implicit_dynticks_qs);
+		force_qs_rnp(rcu_watching_snap_recheck);
 	}
 	/* Clear flag to prevent immediate re-entry. */
 	if (READ_ONCE(rcu_state.gp_flags) & RCU_GP_FLAG_FQS) {