From: Adrian Hunter <adrian.hunter@intel.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
John Stultz <jstultz@google.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
linux-s390@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
x86@kernel.org, "Aneesh Kumar K.V" <aneesh.kumar@kernel.org>,
Ingo Molnar <mingo@redhat.com>,
"Naveen N. Rao" <naveen.n.rao@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
Nicholas Piggin <npiggin@gmail.com>,
Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Anna-Maria Behnsen <anna-maria@linutronix.de>,
Stephen Boyd <sboyd@kernel.org>,
Randy Dunlap <rdunlap@infradead.org>,
linux-kernel@vger.kernel.org, Sven Schnelle <svens@linux.ibm.com>,
linuxppc-dev@lists.ozlabs.org
Subject: [PATCH V2 10/19] timekeeping: Rename fast_tk_get_delta_ns() to __timekeeping_get_ns()
Date: Mon, 25 Mar 2024 08:40:14 +0200 [thread overview]
Message-ID: <20240325064023.2997-11-adrian.hunter@intel.com> (raw)
In-Reply-To: <20240325064023.2997-1-adrian.hunter@intel.com>
Rename fast_tk_get_delta_ns() to __timekeeping_get_ns() to prepare for its
reuse as a general timekeeping helper function.
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
kernel/time/timekeeping.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 3375f0a6400f..63061332a75c 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -390,7 +390,7 @@ static inline u64 timekeeping_cycles_to_ns(const struct tk_read_base *tkr, u64 c
return timekeeping_delta_to_ns(tkr, delta);
}
-static __always_inline u64 fast_tk_get_delta_ns(struct tk_read_base *tkr)
+static __always_inline u64 __timekeeping_get_ns(const struct tk_read_base *tkr)
{
u64 delta, cycles = tk_clock_read(tkr);
@@ -449,7 +449,7 @@ static __always_inline u64 __ktime_get_fast_ns(struct tk_fast *tkf)
seq = raw_read_seqcount_latch(&tkf->seq);
tkr = tkf->base + (seq & 0x01);
now = ktime_to_ns(tkr->base);
- now += fast_tk_get_delta_ns(tkr);
+ now += __timekeeping_get_ns(tkr);
} while (raw_read_seqcount_latch_retry(&tkf->seq, seq));
return now;
@@ -565,7 +565,7 @@ static __always_inline u64 __ktime_get_real_fast(struct tk_fast *tkf, u64 *mono)
tkr = tkf->base + (seq & 0x01);
basem = ktime_to_ns(tkr->base);
baser = ktime_to_ns(tkr->base_real);
- delta = fast_tk_get_delta_ns(tkr);
+ delta = __timekeeping_get_ns(tkr);
} while (raw_read_seqcount_latch_retry(&tkf->seq, seq));
if (mono)
--
2.34.1
next prev parent reply other threads:[~2024-03-25 6:48 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-25 6:40 [PATCH V2 00/19] timekeeping: Handle potential multiplication overflow Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 01/19] vdso: Consolidate vdso_calc_delta() Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 02/19] vdso: Consolidate nanoseconds calculation Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 03/19] vdso: Add CONFIG_GENERIC_VDSO_OVERFLOW_PROTECT Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 04/19] math64: Tidy mul_u64_u32_shr() Adrian Hunter
2024-04-24 15:11 ` Peter Zijlstra
2024-03-25 6:40 ` [PATCH V2 05/19] vdso: math64: Provide mul_u64_u32_add_u64_shr() Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 06/19] vdso: Add vdso_data::max_cycles Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 07/19] vdso: Make delta calculation overflow safe Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 08/19] x86/vdso: " Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 09/19] timekeeping: Move timekeeping helper functions Adrian Hunter
2024-03-25 6:40 ` Adrian Hunter [this message]
2024-03-25 6:40 ` [PATCH V2 11/19] timekeeping: Tidy timekeeping_cycles_to_ns() slightly Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 12/19] timekeeping: Reuse timekeeping_cycles_to_ns() Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 13/19] timekeeping: Refactor timekeeping helpers Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 14/19] timekeeping: Consolidate " Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 15/19] timekeeping: Fold in timekeeping_delta_to_ns() Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 16/19] timekeeping: Prepare timekeeping_cycles_to_ns() for overflow safety Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 17/19] timekeeping: Make delta calculation overflow safe Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 18/19] timekeeping: Let timekeeping_cycles_to_ns() handle both under and overflow Adrian Hunter
2024-03-25 6:40 ` [PATCH V2 19/19] clocksource: Make watchdog and suspend-timing multiplication overflow safe Adrian Hunter
2024-03-25 18:11 ` [PATCH V2 00/19] timekeeping: Handle potential multiplication overflow Arnd Bergmann
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