From: Huw Davies <huw@codeweavers.com>
To: linux kernel <linux-kernel@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>, Andy Lutomirski <luto@kernel.org>
Subject: [PATCH 0/3] x86/vdso: Add support for CLOCK_MONOTONIC_RAW in the vDSO
Date: Thu, 11 Apr 2019 11:12:02 +0100 [thread overview]
Message-ID: <20190411101205.10006-1-huw@codeweavers.com> (raw)
This series adds support for the CLOCK_MONOTONIC_RAW clock in the x86
vDSO, thus decreasing its readout cost. This is particularly useful
for Wine which needs to implement Win32 API clock functions whose
value does not get adjusted with adjtimex().
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Huw Davies (3):
x86/vdso: Remove unused 'mask' member
x86/vdso: Allow clock specific mult and shift values
x86/vdso: Add support for CLOCK_MONOTONIC_RAW in the vDSO
arch/x86/entry/vdso/vclock_gettime.c | 4 ++--
arch/x86/entry/vsyscall/vsyscall_gtod.c | 15 ++++++++++++---
arch/x86/include/asm/vgtod.h | 10 +++++-----
3 files changed, 19 insertions(+), 10 deletions(-)
--
2.17.1
next reply other threads:[~2019-04-11 10:30 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-11 10:12 Huw Davies [this message]
2019-04-11 10:12 ` [PATCH 1/3] x86/vdso: Remove unused 'mask' member Huw Davies
2019-04-14 10:36 ` Thomas Gleixner
2019-04-11 10:12 ` [PATCH 2/3] x86/vdso: Allow clock specific mult and shift values Huw Davies
2019-04-14 10:53 ` Thomas Gleixner
2019-04-15 9:30 ` Huw Davies
2019-04-15 9:51 ` Thomas Gleixner
2019-04-15 10:15 ` Vincenzo Frascino
2019-04-15 12:14 ` Huw Davies
2019-05-30 14:21 ` Vincenzo Frascino
2019-04-11 10:12 ` [PATCH 3/3] x86/vdso: Add support for CLOCK_MONOTONIC_RAW in the vDSO Huw Davies
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