Re: [tip:core/printk] printk: Add monotonic, boottime, and realtime timestamps

On 09/26/2017 11:33 AM, Thomas Gleixner wrote: > On Tue, 26 Sep 2017, Prarit Bhargava wrote: >> On 09/26/2017 11:26 AM, Thomas Gleixner wrote: >>> On Tue, 26 Sep 2017, Prarit Bhargava wrote: >>> >>>> On 09/26/2017 04:42 AM, tip-bot for

Re: [tip:core/printk] printk: Add monotonic, boottime, and realtime timestamps

On 09/26/2017 11:26 AM, Thomas Gleixner wrote: > On Tue, 26 Sep 2017, Prarit Bhargava wrote: > >> On 09/26/2017 04:42 AM, tip-bot for Prarit Bhargava wrote: >>> Commit-ID: 310b454a8653ea60d3eb21ce5ab03a282a32fbe1 >>> Gitweb:

Re: [tip:core/printk] printk: Add monotonic, boottime, and realtime timestamps

On 09/26/2017 11:26 AM, Thomas Gleixner wrote: > On Tue, 26 Sep 2017, Prarit Bhargava wrote: > >> On 09/26/2017 04:42 AM, tip-bot for Prarit Bhargava wrote: >>> Commit-ID: 310b454a8653ea60d3eb21ce5ab03a282a32fbe1 >>> Gitweb:

Re: [tip:core/printk] printk: Add monotonic, boottime, and realtime timestamps

On 09/26/2017 04:42 AM, tip-bot for Prarit Bhargava wrote: > Commit-ID: 310b454a8653ea60d3eb21ce5ab03a282a32fbe1 > Gitweb: http://git.kernel.org/tip/310b454a8653ea60d3eb21ce5ab03a282a32fbe1 > Author: Prarit Bhargava <pra...@redhat.com> > AuthorDate: Mon, 18 Sep 2

Re: [tip:core/printk] printk: Add monotonic, boottime, and realtime timestamps

On 09/26/2017 04:42 AM, tip-bot for Prarit Bhargava wrote: > Commit-ID: 310b454a8653ea60d3eb21ce5ab03a282a32fbe1 > Gitweb: http://git.kernel.org/tip/310b454a8653ea60d3eb21ce5ab03a282a32fbe1 > Author: Prarit Bhargava > AuthorDate: Mon, 18 Sep 2017 13:51:00 -0400 > Com

Re: [PATCH 3/3 v12] printk: Add monotonic, boottime, and realtime timestamps

On 09/26/2017 07:48 AM, Petr Mladek wrote: > On Mon 2017-09-18 13:51:00, Prarit Bhargava wrote: >> 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

Re: [PATCH 3/3 v12] printk: Add monotonic, boottime, and realtime timestamps

On 09/26/2017 07:48 AM, Petr Mladek wrote: > On Mon 2017-09-18 13:51:00, Prarit Bhargava wrote: >> 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

[PATCH 0/3 v2 RESEND] x86/smpboot: Cleanup logical package ID

ing the maximum logical package ID after all the CPUs have been enumerated. Signed-off-by: Prarit Bhargava <pra...@redhat.com> Cc: Thomas Gleixner <t...@linutronix.de> Cc: Ingo Molnar <mi...@redhat.com> Cc: "H. Peter Anvin" <h...@zytor.com> Cc: x...@kernel.org Cc: Pet

[PATCH 0/3 v2 RESEND] x86/smpboot: Cleanup logical package ID

ing the maximum logical package ID after all the CPUs have been enumerated. Signed-off-by: Prarit Bhargava Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: x...@kernel.org Cc: Peter Zijlstra Cc: Andi Kleen Cc: Dave Hansen Cc: Piotr Luc Cc: Kan Liang Cc: Borislav Petkov

[PATCH 2/3 v2 RESEND] x86/topology: Avoid wasting 128k for package id array

an.li...@intel.com> Cc: Borislav Petkov <b...@suse.de> Cc: Stephane Eranian <eran...@google.com> Cc: Prarit Bhargava <pra...@redhat.com> Cc: Arvind Yadav <arvind.yadav...@gmail.com> Cc: Andy Lutomirski <l...@kernel.org> Cc: Christian Borntraeger <borntrae..

[PATCH 2/3 v2 RESEND] x86/topology: Avoid wasting 128k for package id array

Andi Kleen Cc: Dave Hansen Cc: Piotr Luc Cc: Kan Liang Cc: Borislav Petkov Cc: Stephane Eranian Cc: Prarit Bhargava Cc: Arvind Yadav Cc: Andy Lutomirski Cc: Christian Borntraeger Cc: "Kirill A. Shutemov" Cc: Tom Lendacky Cc: He Chen Cc: Mathias Krause Cc: Tim Chen Cc: Vitaly

[PATCH 3/3 v2 RESEND] x86/smpboot: Fix __max_logical_packages estimate

-by: Prarit Bhargava <pra...@redhat.com> Cc: Thomas Gleixner <t...@linutronix.de> Cc: Ingo Molnar <mi...@redhat.com> Cc: "H. Peter Anvin" <h...@zytor.com> Cc: x...@kernel.org Cc: Peter Zijlstra <pet...@infradead.org> Cc: Andi Kleen <a...@linux.intel.com&

[PATCH 3/3 v2 RESEND] x86/smpboot: Fix __max_logical_packages estimate

-by: Prarit Bhargava Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: x...@kernel.org Cc: Peter Zijlstra Cc: Andi Kleen Cc: Dave Hansen Cc: Piotr Luc Cc: Kan Liang Cc: Borislav Petkov Cc: Stephane Eranian Cc: Arvind Yadav Cc: Andy Lutomirski Cc: Christian Bornt

[PATCH 1/3 v2 RESEND] perf/x86/intel/uncore: Cache logical pkg id in uncore driver

@intel.com> Cc: Piotr Luc <piotr@intel.com> Cc: Kan Liang <kan.li...@intel.com> Cc: Borislav Petkov <b...@suse.de> Cc: Stephane Eranian <eran...@google.com> Cc: Prarit Bhargava <pra...@redhat.com> Cc: Arvind Yadav <arvind.yadav...@gmail.com> Cc: An

[PATCH 1/3 v2 RESEND] perf/x86/intel/uncore: Cache logical pkg id in uncore driver

: "H. Peter Anvin" Cc: x...@kernel.org Cc: Peter Zijlstra Cc: Andi Kleen Cc: Dave Hansen Cc: Piotr Luc Cc: Kan Liang Cc: Borislav Petkov Cc: Stephane Eranian Cc: Prarit Bhargava Cc: Arvind Yadav Cc: Andy Lutomirski Cc: Christian Borntraeger Cc: "Kirill A. Shutemov"

[tip:core/printk] printk: Add monotonic, boottime, and realtime timestamps

Commit-ID: a4c1a0002f4518363da9d9ecd7b805af152dcdf1 Gitweb: http://git.kernel.org/tip/a4c1a0002f4518363da9d9ecd7b805af152dcdf1 Author: Prarit Bhargava <pra...@redhat.com> AuthorDate: Mon, 28 Aug 2017 08:21:54 -0400 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate:

[tip:core/printk] printk: Add monotonic, boottime, and realtime timestamps

Commit-ID: a4c1a0002f4518363da9d9ecd7b805af152dcdf1 Gitweb: http://git.kernel.org/tip/a4c1a0002f4518363da9d9ecd7b805af152dcdf1 Author: Prarit Bhargava AuthorDate: Mon, 28 Aug 2017 08:21:54 -0400 Committer: Thomas Gleixner CommitDate: Mon, 25 Sep 2017 21:12:06 +0200 printk: Add

[tip:core/printk] timekeeping: Make fast accessors return 0 before timekeeping is initialized

Commit-ID: 5df32107f609c1f621bcdac0a685c23677ef671e Gitweb: http://git.kernel.org/tip/5df32107f609c1f621bcdac0a685c23677ef671e Author: Prarit Bhargava <pra...@redhat.com> AuthorDate: Mon, 28 Aug 2017 08:21:53 -0400 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate:

[tip:core/printk] timekeeping: Make fast accessors return 0 before timekeeping is initialized

Commit-ID: 5df32107f609c1f621bcdac0a685c23677ef671e Gitweb: http://git.kernel.org/tip/5df32107f609c1f621bcdac0a685c23677ef671e Author: Prarit Bhargava AuthorDate: Mon, 28 Aug 2017 08:21:53 -0400 Committer: Thomas Gleixner CommitDate: Mon, 25 Sep 2017 21:05:59 +0200 timekeeping: Make

Re: [tip:timers/core] kselftests: timers: set-timer-lat: Tweak reporting when timer fires early

spamming the console >>> every time the alarm fires early. It also fixes the test exiting with >>> error code 0 if this was the only test failure. >>> >>> Cc: Thomas Gleixner <t...@linutronix.de> >>> Cc: Ingo Molnar <mi...@kernel.org> >

Re: [tip:timers/core] kselftests: timers: set-timer-lat: Tweak reporting when timer fires early

o fixes the test exiting with >>> error code 0 if this was the only test failure. >>> >>> Cc: Thomas Gleixner >>> Cc: Ingo Molnar >>> Cc: Miroslav Lichvar >>> Cc: Richard Cochran >>> Cc: Prarit Bhargava >>> Cc: Step

Re: [PATCH 3/3 v11] printk: Add monotonic, boottime, and realtime timestamps

On 09/17/2017 06:46 AM, Sergey Senozhatsky wrote: > I'm a bit uncomfortable with the "breaks user space" part. since this > is a strictly debugging option, would it be sufficient to store those > extended timestamps as prefixes of every message? > see (sorry for "self-quoting"): >

Re: [PATCH 3/3 v11] printk: Add monotonic, boottime, and realtime timestamps

On 09/17/2017 06:46 AM, Sergey Senozhatsky wrote: > I'm a bit uncomfortable with the "breaks user space" part. since this > is a strictly debugging option, would it be sufficient to store those > extended timestamps as prefixes of every message? > see (sorry for "self-quoting"): >

[PATCH 0/3 v12] printk: Add new timestamps

-by: Prarit Bhargava <pra...@redhat.com> Cc: Mark Salyzyn <saly...@android.com> Cc: Jonathan Corbet <cor...@lwn.net> Cc: Petr Mladek <pmla...@suse.com> Cc: Sergey Senozhatsky <sergey.senozhat...@gmail.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: John Stultz <john

[PATCH 0/3 v12] printk: Add new timestamps

-by: Prarit Bhargava Cc: Mark Salyzyn Cc: Jonathan Corbet Cc: Petr Mladek Cc: Sergey Senozhatsky Cc: Steven Rostedt Cc: John Stultz Cc: Thomas Gleixner Cc: Stephen Boyd Cc: Andrew Morton Cc: Greg Kroah-Hartman Cc: "Paul E. McKenney" Cc: Christoffer Dall Cc: Deepa Dinamani Cc: Ingo

[PATCH 3/3 v12] printk: Add monotonic, boottime, and realtime timestamps

ames. Simplify timestamp logic and remove recursive code. Signed-off-by: Prarit Bhargava <pra...@redhat.com> Cc: Mark Salyzyn <saly...@android.com> Cc: Jonathan Corbet <cor...@lwn.net> Cc: Petr Mladek <pmla...@suse.com> Cc: Sergey Senozhatsky <sergey.senozhat...@gmai

[PATCH 3/3 v12] printk: Add monotonic, boottime, and realtime timestamps

ames. Simplify timestamp logic and remove recursive code. Signed-off-by: Prarit Bhargava Cc: Mark Salyzyn Cc: Jonathan Corbet Cc: Petr Mladek Cc: Sergey Senozhatsky Cc: Steven Rostedt Cc: John Stultz Cc: Thomas Gleixner Cc: Stephen Boyd Cc: Andrew Morton Cc: Greg Kroah-Hartman Cc: &qu

[PATCH 1/3 v12] time: Make fast functions return 0 before timekeeping is initialized

timekeeping is initialized. [v12]: Remove typecast. Signed-off-by: Prarit Bhargava <pra...@redhat.com> Suggested-by: Peter Zijlstra <pet...@infradead.org> Cc: John Stultz <john.stu...@linaro.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: Stephen Boyd <sb...@codea

[PATCH 1/3 v12] time: Make fast functions return 0 before timekeeping is initialized

timekeeping is initialized. [v12]: Remove typecast. Signed-off-by: Prarit Bhargava Suggested-by: Peter Zijlstra Cc: John Stultz Cc: Thomas Gleixner Cc: Stephen Boyd --- kernel/time/timekeeping.c | 35 +-- 1 file changed, 21 insertions(+), 14 deletions(-) diff --git

[PATCH 2/3 v12] timekeeping: Provide NMI safe access to clock realtime

From: Thomas Gleixner The configurable printk timestamping wants access to clock realtime. Right now there is no ktime_get_real_fast_ns() accessor because reading the monotonic base and the realtime offset cannot be done atomically. Contrary to boot time this offset can

[PATCH 2/3 v12] timekeeping: Provide NMI safe access to clock realtime

From: Thomas Gleixner The configurable printk timestamping wants access to clock realtime. Right now there is no ktime_get_real_fast_ns() accessor because reading the monotonic base and the realtime offset cannot be done atomically. Contrary to boot time this offset can change during runtime and

Re: [PATCH 3/3 v11] printk: Add monotonic, boottime, and realtime timestamps

On 09/15/2017 09:28 AM, Petr Mladek wrote: > > I am still slightly nervous that external tools would need updating. > Also they might have troubles to interpret the time stamps especially > when the source is changed at runtime via > /sys/module/printk/parameters/time. In earlier versions I

Re: [PATCH 3/3 v11] printk: Add monotonic, boottime, and realtime timestamps

On 09/15/2017 09:28 AM, Petr Mladek wrote: > > I am still slightly nervous that external tools would need updating. > Also they might have troubles to interpret the time stamps especially > when the source is changed at runtime via > /sys/module/printk/parameters/time. In earlier versions I

Re: [PATCH 1/3 v11] time: Make fast functions return 0 before timekeeping is initialized

On 09/05/2017 08:15 AM, Thomas Gleixner wrote: > On Tue, 5 Sep 2017, Prarit Bhargava wrote: >> +static struct tk_fast tk_fast_mono cacheline_aligned = { >> +.base = { >> +(struct tk_read_base){ >> +

Re: [PATCH 1/3 v11] time: Make fast functions return 0 before timekeeping is initialized

On 09/05/2017 08:15 AM, Thomas Gleixner wrote: > On Tue, 5 Sep 2017, Prarit Bhargava wrote: >> +static struct tk_fast tk_fast_mono cacheline_aligned = { >> +.base = { >> +(struct tk_read_base){ >> +

[PATCH 1/3 v2] perf/x86/intel/uncore: Cache logical pkg id in uncore driver

From: Andi Kleen The SNB-EP uncore driver is the only user of topology_phys_to_logical_pkg in a performance critical path. Change it query the logical pkg ID only once at initialization time and then cache it in box structure. Signed-off-by: Andi Kleen

[PATCH 1/3 v2] perf/x86/intel/uncore: Cache logical pkg id in uncore driver

From: Andi Kleen The SNB-EP uncore driver is the only user of topology_phys_to_logical_pkg in a performance critical path. Change it query the logical pkg ID only once at initialization time and then cache it in box structure. Signed-off-by: Andi Kleen --- arch/x86/events/intel/uncore.c

[PATCH 3/3 v2] x86/smpboot: Fix __max_logical_packages estimate

-by: Prarit Bhargava <pra...@redhat.com> --- arch/x86/kernel/smpboot.c | 57 +-- 1 file changed, 10 insertions(+), 47 deletions(-) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index a6e9bd971b91..1b86ba57ab1a 100644 --- a/ar

[PATCH 2/3 v2] x86/topology: Avoid wasting 128k for package id array

From: Andi Kleen I was looking at large early boot allocations and noticed that since (1f12e32f x86/topology: Create logical package id) every 64bit system allocates a 128k array to convert logical package ids. This happens because the array is sized for MAX_LOCAL_APIC and

[PATCH 3/3 v2] x86/smpboot: Fix __max_logical_packages estimate

-by: Prarit Bhargava --- arch/x86/kernel/smpboot.c | 57 +-- 1 file changed, 10 insertions(+), 47 deletions(-) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index a6e9bd971b91..1b86ba57ab1a 100644 --- a/arch/x86/kernel/smpboot.c +++ b

[PATCH 2/3 v2] x86/topology: Avoid wasting 128k for package id array

From: Andi Kleen I was looking at large early boot allocations and noticed that since (1f12e32f x86/topology: Create logical package id) every 64bit system allocates a 128k array to convert logical package ids. This happens because the array is sized for MAX_LOCAL_APIC and that is always 32k on

[PATCH 0/3 v2] x86/smpboot: Cleanup logical package ID

Cleanup the logical package ID code by storing the logical package ID in the cpuinfo_x86 struct and calculating the maximum logical package ID after all the CPUs have been enumerated. [v2]: Decrease logical_packages when the last thread in a socket is removed. Signed-off-by: Prarit Bhargava <

[PATCH 0/3 v2] x86/smpboot: Cleanup logical package ID

Cleanup the logical package ID code by storing the logical package ID in the cpuinfo_x86 struct and calculating the maximum logical package ID after all the CPUs have been enumerated. [v2]: Decrease logical_packages when the last thread in a socket is removed. Signed-off-by: Prarit Bhargava

Re: [x86/topology] 05aa90edc7: kernel_BUG_at_arch/x86/kernel/cpu/common.c

On 09/11/2017 07:46 PM, kernel test robot wrote: > FYI, we noticed the following commit: > > commit: 05aa90edc7910ec3d1ed791fa77371b3acb9bf08 ("x86/topology: Avoid > wasting 128k for package id array") > url: >

Re: [x86/topology] 05aa90edc7: kernel_BUG_at_arch/x86/kernel/cpu/common.c

On 09/11/2017 07:46 PM, kernel test robot wrote: > FYI, we noticed the following commit: > > commit: 05aa90edc7910ec3d1ed791fa77371b3acb9bf08 ("x86/topology: Avoid > wasting 128k for package id array") > url: >

Re: [x86/topology] 05aa90edc7: kernel_BUG_at_arch/x86/kernel/cpu/common.c

On 09/11/2017 07:46 PM, kernel test robot wrote: > FYI, we noticed the following commit: > > commit: 05aa90edc7910ec3d1ed791fa77371b3acb9bf08 ("x86/topology: Avoid > wasting 128k for package id array") > url: >

Re: [x86/topology] 05aa90edc7: kernel_BUG_at_arch/x86/kernel/cpu/common.c

On 09/11/2017 07:46 PM, kernel test robot wrote: > FYI, we noticed the following commit: > > commit: 05aa90edc7910ec3d1ed791fa77371b3acb9bf08 ("x86/topology: Avoid > wasting 128k for package id array") > url: >

[PATCH 2/3] x86/topology: Avoid wasting 128k for package id array

From: Andi Kleen I was looking at large early boot allocations and noticed that since (1f12e32f x86/topology: Create logical package id) every 64bit system allocates a 128k array to convert logical package ids. This happens because the array is sized for MAX_LOCAL_APIC and

[PATCH 2/3] x86/topology: Avoid wasting 128k for package id array

From: Andi Kleen I was looking at large early boot allocations and noticed that since (1f12e32f x86/topology: Create logical package id) every 64bit system allocates a 128k array to convert logical package ids. This happens because the array is sized for MAX_LOCAL_APIC and that is always 32k on

[PATCH 0/3] x86/smpboot: Cleanup logical package ID

off-by: Prarit Bhargava <pra...@redhat.com> Andi Kleen (2): perf/x86/intel/uncore: Cache logical pkg id in uncore driver x86/topology: Avoid wasting 128k for package id array Prarit Bhargava (1): x86/smpboot: Fix __max_logical_packages estimate arch/x86/events/intel/uncore.c |

[PATCH 0/3] x86/smpboot: Cleanup logical package ID

off-by: Prarit Bhargava Andi Kleen (2): perf/x86/intel/uncore: Cache logical pkg id in uncore driver x86/topology: Avoid wasting 128k for package id array Prarit Bhargava (1): x86/smpboot: Fix __max_logical_packages estimate arch/x86/events/intel/uncore.c | 1 + arch/x86/events/in

[PATCH 1/3] perf/x86/intel/uncore: Cache logical pkg id in uncore driver

From: Andi Kleen The SNB-EP uncore driver is the only user of topology_phys_to_logical_pkg in a performance critical path. Change it query the logical pkg ID only once at initialization time and then cache it in box structure. Signed-off-by: Andi Kleen

[PATCH 3/3] x86/smpboot: Fix __max_logical_packages estimate

-by: Prarit Bhargava <pra...@redhat.com> --- arch/x86/kernel/smpboot.c | 57 +-- 1 file changed, 10 insertions(+), 47 deletions(-) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index ab588ff56650..51581a38543a 100644 --- a/ar

[PATCH 1/3] perf/x86/intel/uncore: Cache logical pkg id in uncore driver

From: Andi Kleen The SNB-EP uncore driver is the only user of topology_phys_to_logical_pkg in a performance critical path. Change it query the logical pkg ID only once at initialization time and then cache it in box structure. Signed-off-by: Andi Kleen --- arch/x86/events/intel/uncore.c

[PATCH 3/3] x86/smpboot: Fix __max_logical_packages estimate

-by: Prarit Bhargava --- arch/x86/kernel/smpboot.c | 57 +-- 1 file changed, 10 insertions(+), 47 deletions(-) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index ab588ff56650..51581a38543a 100644 --- a/arch/x86/kernel/smpboot.c +++ b

Re: [PATCH] x86/smpboot: Fix __max_logical_packages estimate

On 09/06/2017 02:36 PM, Prarit Bhargava wrote: > A system booted with a small number of cores enabled per package > panics because the estimate of __max_logical_packages is too low. > This occurs when the total number of active cores across all packages > is less than the maximu

Re: [PATCH] x86/smpboot: Fix __max_logical_packages estimate

On 09/06/2017 02:36 PM, Prarit Bhargava wrote: > A system booted with a small number of cores enabled per package > panics because the estimate of __max_logical_packages is too low. > This occurs when the total number of active cores across all packages > is less than the maximu

Re: [PATCH 2/2] x86/topology: Avoid wasting 128k for package id array

On 09/06/2017 07:17 PM, Andi Kleen wrote: > From: Andi Kleen > > I was looking at large early boot allocations and noticed that > since (1f12e32f x86/topology: Create logical package id) > every 64bit system allocates a 128k array to convert logical > package ids. > >

Re: [PATCH 2/2] x86/topology: Avoid wasting 128k for package id array

On 09/06/2017 07:17 PM, Andi Kleen wrote: > From: Andi Kleen > > I was looking at large early boot allocations and noticed that > since (1f12e32f x86/topology: Create logical package id) > every 64bit system allocates a 128k array to convert logical > package ids. > > This happens because the

[PATCH] x86/smpboot: Fix __max_logical_packages estimate

. If __max_logical_packages is still insufficient during boot use the largest possible value of Package ID. Signed-off-by: Prarit Bhargava <pra...@redhat.com> Cc: Thomas Gleixner <t...@linutronix.de> Cc: Ingo Molnar <mi...@redhat.com> Cc: "H. Peter Anvin" <h...@zytor.co

[PATCH] x86/smpboot: Fix __max_logical_packages estimate

. If __max_logical_packages is still insufficient during boot use the largest possible value of Package ID. Signed-off-by: Prarit Bhargava Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: x...@kernel.org Cc: Jean Delvare Cc: Borislav Petkov Cc: Andy Lutomirski Cc: Tim Chen

[PATCH 1/3 v11] time: Make fast functions return 0 before timekeeping is initialized

timekeeping is initialized. Signed-off-by: Prarit Bhargava <pra...@redhat.com> Suggested-by: Peter Zijlstra <pet...@infradead.org> Cc: John Stultz <john.stu...@linaro.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: Stephen Boyd <sb...@codeaurora.org> ---

[PATCH 1/3 v11] time: Make fast functions return 0 before timekeeping is initialized

timekeeping is initialized. Signed-off-by: Prarit Bhargava Suggested-by: Peter Zijlstra Cc: John Stultz Cc: Thomas Gleixner Cc: Stephen Boyd --- kernel/time/timekeeping.c | 47 +-- 1 file changed, 33 insertions(+), 14 deletions(-) diff --git a/kernel

[PATCH 3/3 v11] printk: Add monotonic, boottime, and realtime timestamps

name param functions. Adjust configs, enum, and timestamp_sources_str to be 0-4. Add mention realtime clock is UTC in Documentation. v9: Fix typo. Add __ktime_get_real_fast_ns_unsafe(). v10: Remove time parameter restrictions. Signed-off-by: Prarit Bhargava <pra...@redhat.com> Cc: Ma

[PATCH 3/3 v11] printk: Add monotonic, boottime, and realtime timestamps

name param functions. Adjust configs, enum, and timestamp_sources_str to be 0-4. Add mention realtime clock is UTC in Documentation. v9: Fix typo. Add __ktime_get_real_fast_ns_unsafe(). v10: Remove time parameter restrictions. Signed-off-by: Prarit Bhargava Cc: Mark Salyzyn Cc: Jonathan Co

[PATCH 0/3 v11] printk: Add new timestamps

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 <pra...@redhat.com> Cc: Mark Salyzyn <saly...@android.com> Cc: Jonathan Corbet <cor...@lwn.net&g

[PATCH 0/3 v11] printk: Add new timestamps

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 Cc: Mark Salyzyn Cc: Jonathan Corbet Cc: Petr Mladek Cc: Sergey Senozhatsky Cc: Steven Rostedt Cc: John

[PATCH 2/3 v11] timekeeping: Provide NMI safe access to clock realtime

From: Thomas Gleixner The configurable printk timestamping wants access to clock realtime. Right now there is no ktime_get_real_fast_ns() accessor because reading the monotonic base and the realtime offset cannot be done atomically. Contrary to boot time this offset can

[PATCH 2/3 v11] timekeeping: Provide NMI safe access to clock realtime

From: Thomas Gleixner The configurable printk timestamping wants access to clock realtime. Right now there is no ktime_get_real_fast_ns() accessor because reading the monotonic base and the realtime offset cannot be done atomically. Contrary to boot time this offset can change during runtime and

[PATCH 0/2 v10] printk: Add new timestamps

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 <pra...@redhat.com> Cc: Mark Salyzyn <saly...@android.com> Cc: Jonathan Corbet <cor...@lwn.net&g

[PATCH 0/2 v10] printk: Add new timestamps

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 Cc: Mark Salyzyn Cc: Jonathan Corbet Cc: Petr Mladek Cc: Sergey Senozhatsky Cc: Steven Rostedt Cc: John

[PATCH 2/2 v10] printk: Add monotonic, boottime, and realtime timestamps

Adjust configs, enum, and timestamp_sources_str to be 0-4. Add mention realtime clock is UTC in Documentation. v9: Fix typo. Add __ktime_get_real_fast_ns_unsafe(). v10: Remove time parameter restrictions. Signed-off-by: Prarit Bhargava <pra...@redhat.com> Cc: Mark Salyzyn <saly...@android.

[PATCH 2/2 v10] printk: Add monotonic, boottime, and realtime timestamps

Adjust configs, enum, and timestamp_sources_str to be 0-4. Add mention realtime clock is UTC in Documentation. v9: Fix typo. Add __ktime_get_real_fast_ns_unsafe(). v10: Remove time parameter restrictions. Signed-off-by: Prarit Bhargava Cc: Mark Salyzyn Cc: Jonathan Corbet Cc: Petr Mladek Cc

[PATCH 1/2 v10] time: Make fast functions return 0 before timekeeping is initialized

timekeeping is initialized. Signed-off-by: Prarit Bhargava <pra...@redhat.com> Suggested-by: Peter Zijlstra <pet...@infradead.org> Cc: John Stultz <john.stu...@linaro.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: Stephen Boyd <sb...@codeaurora.org> ---

[PATCH 1/2 v10] time: Make fast functions return 0 before timekeeping is initialized

timekeeping is initialized. Signed-off-by: Prarit Bhargava Suggested-by: Peter Zijlstra Cc: John Stultz Cc: Thomas Gleixner Cc: Stephen Boyd --- kernel/time/timekeeping.c | 47 +-- 1 file changed, 33 insertions(+), 14 deletions(-) diff --git a/kernel

[PATCH 0/2 v9] printk: Add new timestamps

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 <pra...@redhat.com> Cc: Mark Salyzyn <saly...@android.com> Cc: Jonathan Corbet <cor...@lwn.net&g

[PATCH 0/2 v9] printk: Add new timestamps

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 Cc: Mark Salyzyn Cc: Jonathan Corbet Cc: Petr Mladek Cc: Sergey Senozhatsky Cc: Steven Rostedt Cc: John

[PATCH 2/2 v9] printk: Add monotonic, boottime, and realtime timestamps

Adjust configs, enum, and timestamp_sources_str to be 0-4. Add mention realtime clock is UTC in Documentation. v9: Fix typo. Add __ktime_get_real_fast_ns_unsafe(). Signed-off-by: Prarit Bhargava <pra...@redhat.com> Cc: Mark Salyzyn <saly...@android.com> Cc: Jonathan Corbet <cor...@l

[PATCH 2/2 v9] printk: Add monotonic, boottime, and realtime timestamps

Adjust configs, enum, and timestamp_sources_str to be 0-4. Add mention realtime clock is UTC in Documentation. v9: Fix typo. Add __ktime_get_real_fast_ns_unsafe(). Signed-off-by: Prarit Bhargava Cc: Mark Salyzyn Cc: Jonathan Corbet Cc: Petr Mladek Cc: Sergey Senozhatsky Cc: Steven Rostedt

[PATCH 1/2 v9] time: Make fast functions return 0 before timekeeping is initialized

timekeeping is initialized. Signed-off-by: Prarit Bhargava <pra...@redhat.com> Suggested-by: Peter Zijlstra <pet...@infradead.org> Cc: John Stultz <john.stu...@linaro.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: Stephen Boyd <sb...@codeaurora.org> ---

[PATCH 1/2 v9] time: Make fast functions return 0 before timekeeping is initialized

timekeeping is initialized. Signed-off-by: Prarit Bhargava Suggested-by: Peter Zijlstra Cc: John Stultz Cc: Thomas Gleixner Cc: Stephen Boyd --- kernel/time/timekeeping.c | 47 +-- 1 file changed, 33 insertions(+), 14 deletions(-) diff --git a/kernel

Re: [PATCH 2/2 v8] printk: Add monotonic, boottime, and realtime timestamps

On 08/24/2017 02:50 PM, John Stultz wrote: > On Thu, Aug 24, 2017 at 6:42 AM, Prarit Bhargava <pra...@redhat.com> wrote: >> --- a/include/linux/timekeeping.h >> +++ b/include/linux/timekeeping.h >> @@ -239,6 +239,7 @@ static inline u64 ktime_get_raw_ns(void) >>

Re: [PATCH 2/2 v8] printk: Add monotonic, boottime, and realtime timestamps

On 08/24/2017 02:50 PM, John Stultz wrote: > On Thu, Aug 24, 2017 at 6:42 AM, Prarit Bhargava wrote: >> --- a/include/linux/timekeeping.h >> +++ b/include/linux/timekeeping.h >> @@ -239,6 +239,7 @@ static inline u64 ktime_get_raw_ns(void) >> extern u64 ktime_get_mon

[PATCH 0/2 v8] printk: Add new timestamps

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 <pra...@redhat.com> Cc: Mark Salyzyn <saly...@android.com> Cc: Jonathan Corbet <cor...@lwn.net&g

[PATCH 0/2 v8] printk: Add new timestamps

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 Cc: Mark Salyzyn Cc: Jonathan Corbet Cc: Petr Mladek Cc: Sergey Senozhatsky Cc: Steven Rostedt Cc: John

[PATCH 2/2 v8] printk: Add monotonic, boottime, and realtime timestamps

gs, enum, and timestamp_sources_str to be 0-4. Add mention realtime clock is UTC in Documentation. Signed-off-by: Prarit Bhargava <pra...@redhat.com> Cc: Mark Salyzyn <saly...@android.com> Cc: Jonathan Corbet <cor...@lwn.net> Cc: Petr Mladek <pmla...@suse.com> Cc: Sergey Senozhatsky &

[PATCH 2/2 v8] printk: Add monotonic, boottime, and realtime timestamps

gs, enum, and timestamp_sources_str to be 0-4. Add mention realtime clock is UTC in Documentation. Signed-off-by: Prarit Bhargava Cc: Mark Salyzyn Cc: Jonathan Corbet Cc: Petr Mladek Cc: Sergey Senozhatsky Cc: Steven Rostedt Cc: John Stultz Cc: Thomas Gleixner Cc: Stephen Boyd Cc: Andrew Morton Cc: Gr

[PATCH 1/2 v8] time: Make fast functions return 0 before timekeeping is initialized

timekeeping is initialized. Signed-off-by: Prarit Bhargava <pra...@redhat.com> Suggested-by: Peter Zijlstra <pet...@infradead.org> Cc: John Stultz <john.stu...@linaro.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: Stephen Boyd <sb...@codeaurora.org> ---

[PATCH 1/2 v8] time: Make fast functions return 0 before timekeeping is initialized

timekeeping is initialized. Signed-off-by: Prarit Bhargava Suggested-by: Peter Zijlstra Cc: John Stultz Cc: Thomas Gleixner Cc: Stephen Boyd --- kernel/time/timekeeping.c | 47 +-- 1 file changed, 33 insertions(+), 14 deletions(-) diff --git a/kernel

Re: [PATCH 2/2 v7] printk: Add monotonic, boottime, and realtime timestamps

On 08/23/2017 04:45 AM, Petr Mladek wrote: > On Thu 2017-08-17 09:15:39, Prarit Bhargava wrote: >> 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

Re: [PATCH 2/2 v7] printk: Add monotonic, boottime, and realtime timestamps

On 08/23/2017 04:45 AM, Petr Mladek wrote: > On Thu 2017-08-17 09:15:39, Prarit Bhargava wrote: >> 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

Re: [PATCH 2/2 v7] printk: Add monotonic, boottime, and realtime timestamps

On 08/22/2017 10:23 AM, Petr Mladek wrote: > On Tue 2017-08-22 10:09:40, Prarit Bhargava wrote: >> >> >> On 08/17/2017 11:30 AM, Mark Salyzyn wrote: >>> On 08/17/2017 06:15 AM, Prarit Bhargava wrote: >>>> printk.time=1/CONFIG_PRINTK_TIME=1 adds a unmo

Re: [PATCH 2/2 v7] printk: Add monotonic, boottime, and realtime timestamps

On 08/22/2017 10:23 AM, Petr Mladek wrote: > On Tue 2017-08-22 10:09:40, Prarit Bhargava wrote: >> >> >> On 08/17/2017 11:30 AM, Mark Salyzyn wrote: >>> On 08/17/2017 06:15 AM, Prarit Bhargava wrote: >>>> printk.time=1/CONFIG_PRINTK_TIME=1 adds a unmo

Re: [PATCH 2/2 v7] printk: Add monotonic, boottime, and realtime timestamps

On 08/17/2017 11:30 AM, Mark Salyzyn wrote: > On 08/17/2017 06:15 AM, Prarit Bhargava wrote: >> 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

Re: [PATCH 2/2 v7] printk: Add monotonic, boottime, and realtime timestamps

On 08/17/2017 11:30 AM, Mark Salyzyn wrote: > On 08/17/2017 06:15 AM, Prarit Bhargava wrote: >> 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

[PATCH 0/2 v7] printk: Add new timestamps

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 <pra...@redhat.com> Cc: Mark Salyzyn <saly...@android.com> Cc: Jonathan Corbet <cor...@lwn.net&g

[PATCH 0/2 v7] printk: Add new timestamps

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 Cc: Mark Salyzyn Cc: Jonathan Corbet Cc: Petr Mladek Cc: Sergey Senozhatsky Cc: Steven Rostedt Cc: John

[PATCH 2/2 v7] printk: Add monotonic, boottime, and realtime timestamps

Signed-off-by: Prarit Bhargava <pra...@redhat.com> Cc: Mark Salyzyn <saly...@android.com> Cc: Jonathan Corbet <cor...@lwn.net> Cc: Petr Mladek <pmla...@suse.com> Cc: Sergey Senozhatsky <sergey.senozhat...@gmail.com> Cc: Steven Rostedt <rost...@goodmis.org>

[PATCH 2/2 v7] printk: Add monotonic, boottime, and realtime timestamps

Signed-off-by: Prarit Bhargava Cc: Mark Salyzyn Cc: Jonathan Corbet Cc: Petr Mladek Cc: Sergey Senozhatsky Cc: Steven Rostedt Cc: John Stultz Cc: Thomas Gleixner Cc: Stephen Boyd Cc: Andrew Morton Cc: Greg Kroah-Hartman Cc: "Paul E. McKenney" Cc: Christoffer Dall Cc: Deepa

[PATCH 1/2 v7] time: Make fast functions return 0 before timekeeping is initialized

timekeeping is initialized. Signed-off-by: Prarit Bhargava <pra...@redhat.com> Suggested-by: Peter Zijlstra <pet...@infradead.org> Cc: John Stultz <john.stu...@linaro.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: Stephen Boyd <sb...@codeaurora.org> ---

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