Commit 49f82c64 authored by Valentin Schneider's avatar Valentin Schneider Committed by Neeraj Upadhyay
Browse files

rcu: Rename dyntick_save_progress_counter() into rcu_watching_snap_save() 



The context_tracking.state RCU_DYNTICKS subvariable has been renamed to
RCU_WATCHING, and the 'dynticks' prefix can be dropped without losing any
meaning.

Suggested-by: default avatarFrederic Weisbecker <frederic@kernel.org>
Signed-off-by: default avatarValentin Schneider <vschneid@redhat.com>
Reviewed-by: default avatarFrederic Weisbecker <frederic@kernel.org>
Signed-off-by: default avatarNeeraj Upadhyay <neeraj.upadhyay@kernel.org>
parent 76ce2b3d

Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg

+1 −1
Original line number Diff line number Diff line
@@ -528,7 +528,7 @@ 
       font-style="normal"

       y="-8652.5312"

       x="2466.7822"

       xml:space="preserve">dyntick_save_progress_counter()</text>

       xml:space="preserve">rcu_watching_snap_save()</text>

    <text

       style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier"

       id="text202-7-2-7-2-0"

Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg

+1 −1
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@@ -844,7 +844,7 @@ 
     font-style="normal"

     y="1547.8876"

     x="4417.6396"

     xml:space="preserve">dyntick_save_progress_counter()</text>

     xml:space="preserve">rcu_watching_snap_save()</text>

  <g

     style="fill:none;stroke-width:0.025in"

     transform="translate(6501.9719,-10685.904)"

Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg

+1 −1
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@@ -2974,7 +2974,7 @@ 
       font-style="normal"

       y="38114.047"

       x="-334.33856"

       xml:space="preserve">dyntick_save_progress_counter()</text>

       xml:space="preserve">rcu_watching_snap_save()</text>

    <g

       style="fill:none;stroke-width:0.025in"

       transform="translate(1749.9916,25880.249)"

Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg

+1 −1
Original line number Diff line number Diff line
@@ -516,7 +516,7 @@ 
       font-style="normal"

       y="-8652.5312"

       x="2466.7822"

       xml:space="preserve">dyntick_save_progress_counter()</text>

       xml:space="preserve">rcu_watching_snap_save()</text>

    <text

       style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier"

       id="text202-7-2-7-2-0"

kernel/rcu/tree.c

+4 −4
Original line number Diff line number Diff line
@@ -776,11 +776,11 @@ static void rcu_gpnum_ovf(struct rcu_node *rnp, struct rcu_data *rdp) 
}



/*

 * Snapshot the specified CPU's dynticks counter so that we can later

 * Snapshot the specified CPU's RCU_WATCHING counter so that we can later

 * credit them with an implicit quiescent state.  Return 1 if this CPU

 * is in dynticks idle mode, which is an extended quiescent state.

 */

static int dyntick_save_progress_counter(struct rcu_data *rdp)

static int rcu_watching_snap_save(struct rcu_data *rdp)

{

	/*

	 * Full ordering between remote CPU's post idle accesses and updater's
@@ -805,7 +805,7 @@ static int dyntick_save_progress_counter(struct rcu_data *rdp) 
/*

 * Returns positive if the specified CPU has passed through a quiescent state

 * by virtue of being in or having passed through an dynticks idle state since

 * the last call to dyntick_save_progress_counter() for this same CPU, or by

 * the last call to rcu_watching_snap_save() for this same CPU, or by

 * virtue of having been offline.

 *

 * Returns negative if the specified CPU needs a force resched.
@@ -1995,7 +1995,7 @@ static void rcu_gp_fqs(bool first_time) 


	if (first_time) {

		/* Collect dyntick-idle snapshots. */

		force_qs_rnp(dyntick_save_progress_counter);

		force_qs_rnp(rcu_watching_snap_save);

	} else {

		/* Handle dyntick-idle and offline CPUs. */

		force_qs_rnp(rcu_implicit_dynticks_qs);