[v1] jiffies: Remove obsolete SHIFTED_HZ comment

[PATCH] jiffies: Remove obsolete SHIFTED_HZ comment

Posted by Bjorn Helgaas 1 month, 1 week ago

From: Bjorn Helgaas <bhelgaas@google.com>

b3c869d35b9b ("jiffies: Remove compile time assumptions about
CLOCK_TICK_RATE") removed the last definition of SHIFTED_HZ but left
behind comments about it.  Remove the comments as well.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 include/linux/jiffies.h | 2 +-
 include/vdso/jiffies.h  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index 91b20788273d..0d1927da8055 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -61,7 +61,7 @@
 
 extern void register_refined_jiffies(long clock_tick_rate);
 
-/* TICK_USEC is the time between ticks in usec assuming SHIFTED_HZ */
+/* TICK_USEC is the time between ticks in usec */
 #define TICK_USEC ((USEC_PER_SEC + HZ/2) / HZ)
 
 /* USER_TICK_USEC is the time between ticks in usec assuming fake USER_HZ */
diff --git a/include/vdso/jiffies.h b/include/vdso/jiffies.h
index 2f9d596c8b29..8ca04a141412 100644
--- a/include/vdso/jiffies.h
+++ b/include/vdso/jiffies.h
@@ -5,7 +5,7 @@
 #include <asm/param.h>			/* for HZ */
 #include <vdso/time64.h>
 
-/* TICK_NSEC is the time between ticks in nsec assuming SHIFTED_HZ */
+/* TICK_NSEC is the time between ticks in nsec */
 #define TICK_NSEC ((NSEC_PER_SEC+HZ/2)/HZ)
 
 #endif /* __VDSO_JIFFIES_H */
-- 
2.43.0

Re: [PATCH] jiffies: Remove obsolete SHIFTED_HZ comment

Posted by John Stultz 4 weeks, 1 day ago

On Mon, Aug 25, 2025 at 1:34 PM Bjorn Helgaas <helgaas@kernel.org> wrote:
>
> From: Bjorn Helgaas <bhelgaas@google.com>
>
> b3c869d35b9b ("jiffies: Remove compile time assumptions about
> CLOCK_TICK_RATE") removed the last definition of SHIFTED_HZ but left
> behind comments about it.  Remove the comments as well.
>
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

Acked-by: John Stultz <jstultz@google.com>

[tip: timers/core] jiffies: Remove obsolete SHIFTED_HZ comment

Posted by tip-bot2 for Bjorn Helgaas 1 month ago

The following commit has been merged into the timers/core branch of tip:

Commit-ID:     0a26e5eb78fb1627beb8e3eb172737f8492d2799
Gitweb:        https://git.kernel.org/tip/0a26e5eb78fb1627beb8e3eb172737f8492d2799
Author:        Bjorn Helgaas <bhelgaas@google.com>
AuthorDate:    Mon, 25 Aug 2025 15:34:23 -05:00
Committer:     Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Wed, 03 Sep 2025 11:59:28 +02:00

jiffies: Remove obsolete SHIFTED_HZ comment

b3c869d35b9b ("jiffies: Remove compile time assumptions about
CLOCK_TICK_RATE") removed the last definition of SHIFTED_HZ but left
behind comments about it.  Remove the comments as well.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250825203425.796034-1-helgaas@kernel.org

---
 include/linux/jiffies.h | 2 +-
 include/vdso/jiffies.h  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index 91b2078..0d1927d 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -61,7 +61,7 @@
 
 extern void register_refined_jiffies(long clock_tick_rate);
 
-/* TICK_USEC is the time between ticks in usec assuming SHIFTED_HZ */
+/* TICK_USEC is the time between ticks in usec */
 #define TICK_USEC ((USEC_PER_SEC + HZ/2) / HZ)
 
 /* USER_TICK_USEC is the time between ticks in usec assuming fake USER_HZ */
diff --git a/include/vdso/jiffies.h b/include/vdso/jiffies.h
index 2f9d596..8ca04a1 100644
--- a/include/vdso/jiffies.h
+++ b/include/vdso/jiffies.h
@@ -5,7 +5,7 @@
 #include <asm/param.h>			/* for HZ */
 #include <vdso/time64.h>
 
-/* TICK_NSEC is the time between ticks in nsec assuming SHIFTED_HZ */
+/* TICK_NSEC is the time between ticks in nsec */
 #define TICK_NSEC ((NSEC_PER_SEC+HZ/2)/HZ)
 
 #endif /* __VDSO_JIFFIES_H */