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From: "Thomas Weißschuh" <thomas.weissschuh@linutronix.de>
To: Andy Lutomirski <luto@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	 Vincenzo Frascino <vincenzo.frascino@arm.com>,
	 Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	 Anna-Maria Behnsen <anna-maria@linutronix.de>,
	 Frederic Weisbecker <frederic@kernel.org>,
	Ingo Molnar <mingo@redhat.com>,  Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	 x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
	 Madhavan Srinivasan <maddy@linux.ibm.com>,
	 Michael Ellerman <mpe@ellerman.id.au>,
	Nicholas Piggin <npiggin@gmail.com>,
	 Christophe Leroy <christophe.leroy@csgroup.eu>,
	 Naveen N Rao <naveen@kernel.org>,
	Heiko Carstens <hca@linux.ibm.com>,
	 Vasily Gorbik <gor@linux.ibm.com>,
	 Alexander Gordeev <agordeev@linux.ibm.com>,
	 Christian Borntraeger <borntraeger@linux.ibm.com>,
	 Sven Schnelle <svens@linux.ibm.com>,
	Arnd Bergmann <arnd@arndb.de>
Cc: linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org,
	linux-arch@vger.kernel.org, "Nam Cao" <namcao@linutronix.de>,
	"Thomas Weißschuh" <thomas.weissschuh@linutronix.de>
Subject: [PATCH 04/19] vdso/datapage: Define for vdso_data to make rework of vdso possible
Date: Mon, 03 Mar 2025 12:11:06 +0100	[thread overview]
Message-ID: <20250303-vdso-clock-v1-4-c1b5c69a166f@linutronix.de> (raw)
In-Reply-To: <20250303-vdso-clock-v1-0-c1b5c69a166f@linutronix.de>

From: Anna-Maria Behnsen <anna-maria@linutronix.de>

PTP clocks could also be supported by the vdso to use the advantages of
this implementation. Therefore the struct must be reworked. For a
transition to the new structure of the vdso, add a define which maps
vdso_clock to vdso_data. This will be removed when all users are updated
step by step.

No functional change.

Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
---
 include/vdso/datapage.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/vdso/datapage.h b/include/vdso/datapage.h
index dfd98f969f151eca3c551c3e90f69af9ee8f22bb..1df22e8bb9b31153546b72b1e8b8c8aeaed7d9e3 100644
--- a/include/vdso/datapage.h
+++ b/include/vdso/datapage.h
@@ -129,6 +129,8 @@ struct vdso_time_data {
 	struct arch_vdso_time_data arch_data;
 } ____cacheline_aligned;
 
+#define vdso_clock vdso_time_data
+
 /**
  * struct vdso_rng_data - vdso RNG state information
  * @generation:	counter representing the number of RNG reseeds

-- 
2.48.1


  parent reply	other threads:[~2025-03-03 11:11 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-03 11:11 [PATCH 00/19] vdso: Rework struct vdso_time_data and introduce struct vdso_clock Thomas Weißschuh
2025-03-03 11:11 ` Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 01/19] vdso: Introduce vdso/cache.h Thomas Weißschuh
2025-03-08 13:45   ` [tip: timers/vdso] " tip-bot2 for Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 02/19] arm64: Make asm/cache.h compatible with vDSO Thomas Weißschuh
2025-03-08 13:45   ` [tip: timers/vdso] " tip-bot2 for Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 03/19] vdso: Make vdso_time_data cacheline aligned Thomas Weißschuh
2025-03-08 13:45   ` [tip: timers/vdso] " tip-bot2 for Anna-Maria Behnsen
2025-03-03 11:11 ` Thomas Weißschuh [this message]
2025-03-08 13:45   ` [tip: timers/vdso] vdso/datapage: Define vdso_clock to prepare for multiple PTP clocks tip-bot2 for Anna-Maria Behnsen
2025-03-03 11:11 ` [PATCH 05/19] vdso/helpers: Prepare introduction of struct vdso_clock Thomas Weißschuh
2025-03-08 13:45   ` [tip: timers/vdso] " tip-bot2 for Anna-Maria Behnsen
2025-03-03 11:11 ` [PATCH 06/19] vdso/gettimeofday: " Thomas Weißschuh
2025-03-08 13:45   ` [tip: timers/vdso] " tip-bot2 for Anna-Maria Behnsen
2025-03-03 11:11 ` [PATCH 07/19] vdso/gettimeofday: Prepare do_hres() for " Thomas Weißschuh
2025-03-08 13:45   ` [tip: timers/vdso] " tip-bot2 for Anna-Maria Behnsen
2025-03-03 11:11 ` [PATCH 08/19] vdso/gettimeofday: Prepare do_hres_timens() " Thomas Weißschuh
2025-03-08 13:45   ` [tip: timers/vdso] " tip-bot2 for Anna-Maria Behnsen
2025-04-24 14:10   ` [PATCH 08/19] " Jan Stancek
2025-04-24 15:43     ` Thomas Weißschuh
2025-04-24 21:57       ` Jan Stancek
2025-04-25  8:58         ` Thomas Weißschuh
2025-04-25 10:03           ` Jan Stancek
2025-04-25 13:40             ` Thomas Weißschuh
2025-04-25 14:37               ` Jan Stancek
2025-04-25 15:34                 ` Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 09/19] vdso/gettimeofday: Prepare do_coarse() " Thomas Weißschuh
2025-03-08 13:45   ` [tip: timers/vdso] " tip-bot2 for Anna-Maria Behnsen
2025-03-03 11:11 ` [PATCH 10/19] vdso/gettimeofday: Prepare do_coarse_timens() " Thomas Weißschuh
2025-03-08 13:45   ` [tip: timers/vdso] " tip-bot2 for Anna-Maria Behnsen
2025-03-03 11:11 ` [PATCH 11/19] vdso/gettimeofday: Prepare helper functions " Thomas Weißschuh
2025-03-08 13:45   ` [tip: timers/vdso] " tip-bot2 for Anna-Maria Behnsen
2025-03-03 11:11 ` [PATCH 12/19] vdso/vsyscall: Prepare " Thomas Weißschuh
2025-03-08 13:45   ` [tip: timers/vdso] " tip-bot2 for Anna-Maria Behnsen
2025-03-03 11:11 ` [PATCH 13/19] vdso/namespace: Rename timens_setup_vdso_data() to reflect new vdso_clock struct Thomas Weißschuh
2025-03-08 13:44   ` [tip: timers/vdso] " tip-bot2 for Anna-Maria Behnsen
2025-03-03 11:11 ` [PATCH 14/19] time/namespace: Prepare introduction of struct vdso_clock Thomas Weißschuh
2025-03-08 13:44   ` [tip: timers/vdso] " tip-bot2 for Anna-Maria Behnsen
2025-03-03 11:11 ` [PATCH 15/19] x86/vdso: " Thomas Weißschuh
2025-03-03 11:11   ` Thomas Weißschuh
2025-03-08 13:44   ` [tip: timers/vdso] " tip-bot2 for Anna-Maria Behnsen
2025-03-03 11:11 ` [PATCH 16/19] arm64/vdso: " Thomas Weißschuh
2025-03-03 11:11   ` Thomas Weißschuh
2025-03-08 13:44   ` [tip: timers/vdso] " tip-bot2 for Nam Cao
2025-03-03 11:11 ` [PATCH 17/19] powerpc/vdso: " Thomas Weißschuh
2025-03-03 11:11   ` Thomas Weißschuh
2025-03-08 13:44   ` [tip: timers/vdso] " tip-bot2 for Nam Cao
2025-03-03 11:11 ` [PATCH 18/19] vdso: Move arch related data before basetime Thomas Weißschuh
2025-03-08 13:44   ` [tip: timers/vdso] vdso: Move architecture related data before basetime data tip-bot2 for Anna-Maria Behnsen
2025-03-03 11:11 ` [PATCH 19/19] vdso: Rework struct vdso_time_data and introduce struct vdso_clock Thomas Weißschuh
2025-03-08 13:44   ` [tip: timers/vdso] " tip-bot2 for Anna-Maria Behnsen

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