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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 13/19] vdso/namespace: Rename timens_setup_vdso_data() to reflect new vdso_clock struct
Date: Mon, 03 Mar 2025 12:11:15 +0100	[thread overview]
Message-ID: <20250303-vdso-clock-v1-13-c1b5c69a166f@linutronix.de> (raw)
In-Reply-To: <20250303-vdso-clock-v1-0-c1b5c69a166f@linutronix.de>

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

To support multiple PTP clocks, the VDSO data structure needs to be
reworked. All clock specific data will end up in struct vdso_clock and in
struct vdso_time_data there will be array of it.

For time namespace, vdso_time_data needs to be set up. But this is only the
clock related part of the vdso_data thats requires this setup. To reflect
the future struct vdso_clock, rename timens_setup_vdso_data() to
timns_setup_vdso_clock_data().

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>
---
 kernel/time/namespace.c | 6 +++---
 lib/vdso/datastore.c    | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/time/namespace.c b/kernel/time/namespace.c
index 12f55aa539adbc11cce4055f519dbeca8a73320c..f02430a73be8f081618792c8968bf0c112c54505 100644
--- a/kernel/time/namespace.c
+++ b/kernel/time/namespace.c
@@ -176,8 +176,8 @@ static struct timens_offset offset_from_ts(struct timespec64 off)
  * Timens page has vdso_time_data->clock_mode set to VDSO_CLOCKMODE_TIMENS which
  * enforces the time namespace handling path.
  */
-static void timens_setup_vdso_data(struct vdso_time_data *vdata,
-				   struct time_namespace *ns)
+static void timens_setup_vdso_clock_data(struct vdso_time_data *vdata,
+					 struct time_namespace *ns)
 {
 	struct timens_offset *offset = vdata->offset;
 	struct timens_offset monotonic = offset_from_ts(ns->offsets.monotonic);
@@ -238,7 +238,7 @@ static void timens_set_vvar_page(struct task_struct *task,
 	vdata = page_address(ns->vvar_page);
 
 	for (i = 0; i < CS_BASES; i++)
-		timens_setup_vdso_data(&vdata[i], ns);
+		timens_setup_vdso_clock_data(&vdata[i], ns);
 
 out:
 	mutex_unlock(&offset_lock);
diff --git a/lib/vdso/datastore.c b/lib/vdso/datastore.c
index e227fbbcb79694f9a40606ac864f52cf1fdbfcf4..4e350f56ace335b7ebca8af7663b5731fae27334 100644
--- a/lib/vdso/datastore.c
+++ b/lib/vdso/datastore.c
@@ -109,7 +109,7 @@ struct vm_area_struct *vdso_install_vvar_mapping(struct mm_struct *mm, unsigned
  * non-root time namespace. Whenever a task changes its namespace, the VVAR
  * page tables are cleared and then they will be re-faulted with a
  * corresponding layout.
- * See also the comment near timens_setup_vdso_data() for details.
+ * See also the comment near timens_setup_vdso_clock_data() for details.
  */
 int vdso_join_timens(struct task_struct *task, struct time_namespace *ns)
 {

-- 
2.48.1


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

Thread overview: 32+ 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
2025-03-03 11:11 ` [PATCH 02/19] arm64: Make asm/cache.h compatible with vDSO Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 03/19] vdso: Make vdso_time_data cacheline aligned Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 04/19] vdso/datapage: Define for vdso_data to make rework of vdso possible Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 05/19] vdso/helpers: Prepare introduction of struct vdso_clock Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 06/19] vdso/gettimeofday: " Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 07/19] vdso/gettimeofday: Prepare do_hres() for " Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 08/19] vdso/gettimeofday: Prepare do_hres_timens() " Thomas Weißschuh
2025-04-24 14:10   ` 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
2025-03-03 11:11 ` [PATCH 10/19] vdso/gettimeofday: Prepare do_coarse_timens() " Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 11/19] vdso/gettimeofday: Prepare helper functions " Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 12/19] vdso/vsyscall: Prepare " Thomas Weißschuh
2025-03-03 11:11 ` Thomas Weißschuh [this message]
2025-03-03 11:11 ` [PATCH 14/19] time/namespace: " Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 15/19] x86/vdso: " Thomas Weißschuh
2025-03-03 11:11   ` Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 16/19] arm64/vdso: " Thomas Weißschuh
2025-03-03 11:11   ` Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 17/19] powerpc/vdso: " Thomas Weißschuh
2025-03-03 11:11   ` Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 18/19] vdso: Move arch related data before basetime Thomas Weißschuh
2025-03-03 11:11 ` [PATCH 19/19] vdso: Rework struct vdso_time_data and introduce struct vdso_clock Thomas Weißschuh

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