linux-kernel - [tip:timers/core] timers: Move __run

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 7 Jul 2016 01:46:43 -0700
From:	tip-bot for Anna-Maria Gleixner <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	lenb@...nel.org, anna-maria@...utronix.de,
	linux-kernel@...r.kernel.org, riel@...hat.com,
	linux@...encehorizons.net, edumazet@...gle.com,
	arjan@...radead.org, torvalds@...ux-foundation.org,
	tglx@...utronix.de, paulmck@...ux.vnet.ibm.com, mingo@...nel.org,
	peterz@...radead.org, hpa@...or.com, fweisbec@...il.com,
	clm@...com, josh@...htriplett.org
Subject: [tip:timers/core] timers: Move __run_timers() function

Commit-ID:  73420fea80c6c376d91a69defe64013baa0d7e95
Gitweb:     http://git.kernel.org/tip/73420fea80c6c376d91a69defe64013baa0d7e95
Author:     Anna-Maria Gleixner <anna-maria@...utronix.de>
AuthorDate: Mon, 4 Jul 2016 09:50:33 +0000
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Thu, 7 Jul 2016 10:35:09 +0200

timers: Move __run_timers() function

Move __run_timers() below __next_timer_interrupt() and next_pending_bucket()
in preparation for __run_timers() NOHZ optimization.

No functional change.

Signed-off-by: Anna-Maria Gleixner <anna-maria@...utronix.de>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: Arjan van de Ven <arjan@...radead.org>
Cc: Chris Mason <clm@...com>
Cc: Eric Dumazet <edumazet@...gle.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: George Spelvin <linux@...encehorizons.net>
Cc: Josh Triplett <josh@...htriplett.org>
Cc: Len Brown <lenb@...nel.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Rik van Riel <riel@...hat.com>
Cc: rt@...utronix.de
Link: http://lkml.kernel.org/r/20160704094342.271872665@linutronix.de
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 kernel/time/timer.c | 52 ++++++++++++++++++++++++++--------------------------
 1 file changed, 26 insertions(+), 26 deletions(-)

diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index a83e23d..c16c48d 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1277,32 +1277,6 @@ static int collect_expired_timers(struct timer_base *base,
 	return levels;
 }
 
-/**
- * __run_timers - run all expired timers (if any) on this CPU.
- * @base: the timer vector to be processed.
- */
-static inline void __run_timers(struct timer_base *base)
-{
-	struct hlist_head heads[LVL_DEPTH];
-	int levels;
-
-	if (!time_after_eq(jiffies, base->clk))
-		return;
-
-	spin_lock_irq(&base->lock);
-
-	while (time_after_eq(jiffies, base->clk)) {
-
-		levels = collect_expired_timers(base, heads);
-		base->clk++;
-
-		while (levels--)
-			expire_timers(base, heads + levels);
-	}
-	base->running_timer = NULL;
-	spin_unlock_irq(&base->lock);
-}
-
 #ifdef CONFIG_NO_HZ_COMMON
 /*
  * Find the next pending bucket of a level. Search from @offset + @clk upwards
@@ -1472,6 +1446,32 @@ void update_process_times(int user_tick)
 	run_posix_cpu_timers(p);
 }
 
+/**
+ * __run_timers - run all expired timers (if any) on this CPU.
+ * @base: the timer vector to be processed.
+ */
+static inline void __run_timers(struct timer_base *base)
+{
+	struct hlist_head heads[LVL_DEPTH];
+	int levels;
+
+	if (!time_after_eq(jiffies, base->clk))
+		return;
+
+	spin_lock_irq(&base->lock);
+
+	while (time_after_eq(jiffies, base->clk)) {
+
+		levels = collect_expired_timers(base, heads);
+		base->clk++;
+
+		while (levels--)
+			expire_timers(base, heads + levels);
+	}
+	base->running_timer = NULL;
+	spin_unlock_irq(&base->lock);
+}
+
 /*
  * This function runs timers and the timer-tq in bottom half context.
  */