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Message-Id: <1502896627-6658-1-git-send-email-prarit@redhat.com>
Date: Wed, 16 Aug 2017 11:17:05 -0400
From: Prarit Bhargava <prarit@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: Prarit Bhargava <prarit@...hat.com>,
Mark Salyzyn <salyzyn@...roid.com>,
Jonathan Corbet <corbet@....net>,
Petr Mladek <pmladek@...e.com>,
Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
Steven Rostedt <rostedt@...dmis.org>,
John Stultz <john.stultz@...aro.org>,
Thomas Gleixner <tglx@...utronix.de>,
Stephen Boyd <sboyd@...eaurora.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
Christoffer Dall <cdall@...aro.org>,
Deepa Dinamani <deepa.kernel@...il.com>,
Ingo Molnar <mingo@...nel.org>,
Joel Fernandes <joelaf@...gle.com>,
Kees Cook <keescook@...omium.org>,
Peter Zijlstra <peterz@...radead.org>,
Geert Uytterhoeven <geert+renesas@...der.be>,
"Luis R. Rodriguez" <mcgrof@...nel.org>,
Nicholas Piggin <npiggin@...il.com>,
"Jason A. Donenfeld" <Jason@...c4.com>,
Olof Johansson <olof@...om.net>,
Josh Poimboeuf <jpoimboe@...hat.com>, linux-doc@...r.kernel.org
Subject: [PATCH 0/2 v6] printk: Add new timestamps
printk.time=1/CONFIG_PRINTK_TIME=1 adds a unmodified local hardware clock
timestamp to printk messages. The local hardware clock loses time each
day making it difficult to determine exactly when an issue has occurred in
the kernel log, and making it difficult to determine how kernel and
hardware issues relate to each other in real time.
Add monotonic, boottime, and real clock timestamps in addition to the existing
local hardware clock timestamp.
Signed-off-by: Prarit Bhargava <prarit@...hat.com>
Cc: Mark Salyzyn <salyzyn@...roid.com>
Cc: Jonathan Corbet <corbet@....net>
Cc: Petr Mladek <pmladek@...e.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: John Stultz <john.stultz@...aro.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Stephen Boyd <sboyd@...eaurora.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc: Christoffer Dall <cdall@...aro.org>
Cc: Deepa Dinamani <deepa.kernel@...il.com>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Joel Fernandes <joelaf@...gle.com>
Cc: Prarit Bhargava <prarit@...hat.com>
Cc: Kees Cook <keescook@...omium.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Geert Uytterhoeven <geert+renesas@...der.be>
Cc: "Luis R. Rodriguez" <mcgrof@...nel.org>
Cc: Nicholas Piggin <npiggin@...il.com>
Cc: "Jason A. Donenfeld" <Jason@...c4.com>
Cc: Olof Johansson <olof@...om.net>
Cc: Josh Poimboeuf <jpoimboe@...hat.com>
Cc: linux-doc@...r.kernel.org
Prarit Bhargava (2):
time: Make fast functions return 0 before timekeeping is initialized
printk: Add monotonic, boottime, and realtime timestamps
Documentation/admin-guide/kernel-parameters.txt | 6 +-
arch/arm/configs/aspeed_g4_defconfig | 2 +-
arch/arm/configs/aspeed_g5_defconfig | 2 +-
arch/arm/configs/axm55xx_defconfig | 2 +-
arch/arm/configs/bcm2835_defconfig | 2 +-
arch/arm/configs/colibri_pxa270_defconfig | 2 +-
arch/arm/configs/colibri_pxa300_defconfig | 2 +-
arch/arm/configs/dove_defconfig | 2 +-
arch/arm/configs/efm32_defconfig | 2 +-
arch/arm/configs/exynos_defconfig | 2 +-
arch/arm/configs/ezx_defconfig | 2 +-
arch/arm/configs/h5000_defconfig | 2 +-
arch/arm/configs/hisi_defconfig | 2 +-
arch/arm/configs/imote2_defconfig | 2 +-
arch/arm/configs/imx_v6_v7_defconfig | 2 +-
arch/arm/configs/keystone_defconfig | 2 +-
arch/arm/configs/lpc18xx_defconfig | 2 +-
arch/arm/configs/magician_defconfig | 2 +-
arch/arm/configs/mmp2_defconfig | 2 +-
arch/arm/configs/moxart_defconfig | 2 +-
arch/arm/configs/mps2_defconfig | 2 +-
arch/arm/configs/multi_v7_defconfig | 2 +-
arch/arm/configs/mvebu_v7_defconfig | 2 +-
arch/arm/configs/mxs_defconfig | 2 +-
arch/arm/configs/omap2plus_defconfig | 2 +-
arch/arm/configs/pxa168_defconfig | 2 +-
arch/arm/configs/pxa3xx_defconfig | 2 +-
arch/arm/configs/pxa910_defconfig | 2 +-
arch/arm/configs/pxa_defconfig | 2 +-
arch/arm/configs/qcom_defconfig | 2 +-
arch/arm/configs/raumfeld_defconfig | 2 +-
arch/arm/configs/shmobile_defconfig | 2 +-
arch/arm/configs/socfpga_defconfig | 2 +-
arch/arm/configs/stm32_defconfig | 2 +-
arch/arm/configs/sunxi_defconfig | 2 +-
arch/arm/configs/tango4_defconfig | 2 +-
arch/arm/configs/tegra_defconfig | 2 +-
arch/arm/configs/u300_defconfig | 2 +-
arch/arm/configs/u8500_defconfig | 2 +-
arch/arm/configs/vt8500_v6_v7_defconfig | 2 +-
arch/arm/configs/xcep_defconfig | 2 +-
arch/arm/configs/zx_defconfig | 2 +-
arch/arm64/configs/defconfig | 2 +-
arch/m68k/configs/amcore_defconfig | 2 +-
arch/mips/configs/ath25_defconfig | 2 +-
arch/mips/configs/bcm47xx_defconfig | 2 +-
arch/mips/configs/bmips_be_defconfig | 2 +-
arch/mips/configs/bmips_stb_defconfig | 2 +-
arch/mips/configs/ci20_defconfig | 2 +-
arch/mips/configs/generic_defconfig | 2 +-
arch/mips/configs/lemote2f_defconfig | 2 +-
arch/mips/configs/loongson3_defconfig | 2 +-
arch/mips/configs/nlm_xlp_defconfig | 2 +-
arch/mips/configs/nlm_xlr_defconfig | 2 +-
arch/mips/configs/pistachio_defconfig | 2 +-
arch/mips/configs/qi_lb60_defconfig | 2 +-
arch/mips/configs/rt305x_defconfig | 2 +-
arch/mips/configs/xway_defconfig | 2 +-
arch/parisc/configs/generic-64bit_defconfig | 2 +-
arch/powerpc/configs/40x/virtex_defconfig | 2 +-
arch/powerpc/configs/44x/fsp2_defconfig | 2 +-
arch/powerpc/configs/44x/virtex5_defconfig | 2 +-
arch/powerpc/configs/44x/warp_defconfig | 2 +-
arch/powerpc/configs/52xx/cm5200_defconfig | 2 +-
arch/powerpc/configs/52xx/lite5200b_defconfig | 2 +-
arch/powerpc/configs/52xx/motionpro_defconfig | 2 +-
arch/powerpc/configs/52xx/tqm5200_defconfig | 2 +-
arch/powerpc/configs/gamecube_defconfig | 2 +-
arch/powerpc/configs/mpc5200_defconfig | 2 +-
arch/powerpc/configs/pasemi_defconfig | 2 +-
arch/powerpc/configs/wii_defconfig | 2 +-
arch/s390/configs/default_defconfig | 2 +-
arch/s390/configs/gcov_defconfig | 2 +-
arch/s390/configs/performance_defconfig | 2 +-
arch/s390/configs/zfcpdump_defconfig | 2 +-
arch/sh/configs/edosk7760_defconfig | 2 +-
arch/sh/configs/sdk7786_defconfig | 2 +-
arch/sh/configs/se7722_defconfig | 2 +-
arch/sh/configs/sh7785lcr_32bit_defconfig | 2 +-
arch/sh/configs/urquell_defconfig | 2 +-
arch/sparc/configs/sparc64_defconfig | 2 +-
arch/x86/configs/i386_defconfig | 2 +-
arch/x86/configs/x86_64_defconfig | 2 +-
arch/xtensa/configs/audio_kc705_defconfig | 2 +-
arch/xtensa/configs/cadence_csp_defconfig | 2 +-
arch/xtensa/configs/generic_kc705_defconfig | 2 +-
arch/xtensa/configs/nommu_kc705_defconfig | 2 +-
arch/xtensa/configs/smp_lx200_defconfig | 2 +-
include/linux/timekeeping.h | 1 +
kernel/printk/printk.c | 147 ++++++++++++++++++++-
kernel/time/timekeeping.c | 46 +++++--
lib/Kconfig.debug | 54 +++++++-
.../selftests/rcutorture/configs/lock/CFcommon | 2 +-
.../selftests/rcutorture/configs/rcu/CFcommon | 2 +-
.../selftests/rcutorture/configs/rcuperf/CFcommon | 2 +-
95 files changed, 320 insertions(+), 114 deletions(-)
--
1.8.5.5
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