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Message-ID: <20220529124610.0c2b652e@rorschach.local.home>
Date: Sun, 29 May 2022 12:46:10 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
Thomas Gleixner <tglx@...utronix.de>,
Ammar Faizi <ammarfaizi2@...weeb.org>,
Christophe Leroy <christophe.leroy@...roup.eu>,
Congyu Liu <liu3101@...due.edu>,
Daniel Bristot de Oliveira <bristot@...nel.org>,
Gautam Menghani <gautammenghani201@...il.com>,
Guo Zhengkui <guozhengkui@...o.com>,
Jakob Koschel <jakobkoschel@...il.com>,
Jeff Xie <xiehuan09@...il.com>,
Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
Julia Lawall <Julia.Lawall@...ia.fr>,
Jun Miao <jun.miao@...el.com>,
Keita Suzuki <keitasuzuki.park@...ab.ics.keio.ac.jp>,
Kurt Kanzenbach <kurt@...utronix.de>,
Li Huafei <lihuafei1@...wei.com>,
Li kunyu <kunyu@...china.com>,
Mark-PK Tsai <mark-pk.tsai@...iatek.com>,
Masami Hiramatsu <mhiramat@...nel.org>,
Oscar Shiang <oscar0225@...email.tw>,
Song Liu <song@...nel.org>, Tom Rix <trix@...hat.com>,
Tom Zanussi <zanussi@...nel.org>,
Wan Jiabing <wanjiabing@...o.com>,
Wonhyuk Yang <vvghjk1234@...il.com>,
Yang Li <yang.lee@...ux.alibaba.com>,
Yuntao Wang <ytcoode@...il.com>,
liqiong <liqiong@...china.com>,
sunliming <kelulanainsley@...il.com>,
sunliming <sunliming@...inos.cn>
Subject: [GIT PULL] tracing: Updates for 5.19
Linus,
Note, this series is based off of one of Thomas's tip branches that
added the TAI clock. I have patches that depended on it.
Also, I apologize for being late. My day job got in the way of my
upstream work, and I pulled in a lot of patches just at the start of
the merge window and wanted to let it sit in linux-next for a few days.
But there's not much in this pull request that is concerning. The bulk
of it is clean ups and various fixes. And the other stuff isn't too invasive.
And to make matters worse, I'm doing this from Paris
(Embedded / Kernel Recipes start tomorrow).
tracing updates for 5.19:
- The majority of the changes are for fixes and clean ups.
Noticeable changes:
- Rework trace event triggers code to be easier to interact with.
- Support for embedding bootconfig with the kernel (as suppose to having it
embedded in initram). This is useful for embedded boards without initram
disks.
- Speed up boot by parallelizing the creation of tracefs files.
- Allow absolute ring buffer timestamps handle timestamps that use more than
59 bits.
- Added new tracing clock "TAI" (International Atomic Time)
- Have weak functions show up in available_filter_function list as:
__ftrace_invalid_address___<invalid-offset>
instead of using the name of the function before it.
Please pull the latest trace-v5.19 tree, which can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git
trace-v5.19
Tag SHA1: b66c571025d06f10c948ea09ca7fbfb8a95c29fe
Head SHA1: b39181f7c6907dc66ff937b74758671fa6ba430c
Ammar Faizi (2):
tracing: Return -EINVAL if WARN_ON(!glob) triggered in event_hist_trigger_parse()
tracing: Change `if (strlen(glob))` to `if (glob[0])`
Christophe Leroy (1):
MAINTAINERS: Enlarge coverage of TRACING inside architectures
Congyu Liu (1):
tracing: Disable kcov on trace_preemptirq.c
Daniel Bristot de Oliveira (3):
tracing/timerlat: Notify IRQ new max latency only if stop tracing is set
tracing/timerlat: Print stacktrace in the IRQ handler if needed
tracing/timerlat: Do not wakeup the thread if the trace stops at the IRQ
Gautam Menghani (1):
tracing: Initialize integer variable to prevent garbage return value
Guo Zhengkui (1):
tracing: Use WARN instead of printk and WARN_ON
Jakob Koschel (4):
tracing: Remove usage of list iterator after the loop body
tracing: Remove usage of list iterator variable after the loop
tracing: Replace usage of found with dedicated list iterator variable
tracing: Remove check of list iterator against head past the loop body
Jeff Xie (1):
tracing: Make tp_printk work on syscall tracepoints
Jiapeng Chong (1):
tracing: Fix kernel-doc
Julia Lawall (1):
ftrace: Fix typo in comment
Jun Miao (1):
tracing: Fix sleeping function called from invalid context on RT kernel
Keita Suzuki (1):
tracing: Fix potential double free in create_var_ref()
Kurt Kanzenbach (2):
tracing: Introduce trace clock tai
tracing: Add documentation for trace clock tai
Li Huafei (1):
tracing: Reset the function filter after completing trampoline/graph selftest
Li kunyu (1):
ftrace: Remove return value of ftrace_arch_modify_*()
Mark-PK Tsai (2):
tracing: Avoid adding tracer option before update_tracer_options
tracing: make tracer_init_tracefs initcall asynchronous
Masami Hiramatsu (5):
bootconfig: Make the bootconfig.o as a normal object file
bootconfig: Check the checksum before removing the bootconfig from initrd
bootconfig: Support embedding a bootconfig file in kernel
docs: bootconfig: Add how to embed the bootconfig into kernel
kprobes: Fix build errors with CONFIG_KRETPROBES=n
Oscar Shiang (1):
tracing: Fix inconsistent style of mini-HOWTO
Song Liu (1):
ftrace: Clean up hash direct_functions on register failures
Steven Rostedt (Google) (4):
ring-buffer: Have absolute time stamps handle large numbers
ring-buffer: Have 32 bit time stamps use all 64 bits
tracing: Have event format check not flag %p* on __get_dynamic_array()
ftrace: Add FTRACE_MCOUNT_MAX_OFFSET to avoid adding weak function
Tom Rix (1):
tracing: Cleanup double word in comment
Tom Zanussi (4):
tracing: Remove logic for registering multiple event triggers at a time
tracing: Remove redundant trigger_ops params
tracing: Have existing event_command.parse() implementations use helpers
tracing: Separate hist state updates from hist registration
Wan Jiabing (1):
ring-buffer: Simplify if-if to if-else
Wonhyuk Yang (1):
tracing: Fix return value of trace_pid_write()
Yang Li (1):
tracing: Fix tracing_map_sort_entries() kernel-doc comment
Yuntao Wang (3):
tracing: Use trace_create_file() to simplify creation of tracefs entries
ftrace: Deal with error return code of the ftrace_process_locs() function
tracing: Use strim() to remove whitespace instead of doing it manually
liqiong (2):
tracing: Change "char *" string form to "char []"
tracing: Cleanup code by removing init "char *name"
sunliming (4):
tracing: Fix comments of create_filter()
x86,tracing: Remove unused headers
x86/traceponit: Fix comment about irq vector tracepoints
tracing: Fix comments for event_trigger_separate_filter()
----
Documentation/admin-guide/bootconfig.rst | 31 ++-
Documentation/trace/ftrace.rst | 12 ++
Documentation/trace/timerlat-tracer.rst | 5 +-
MAINTAINERS | 5 +-
arch/arm/kernel/ftrace.c | 6 +-
arch/riscv/kernel/ftrace.c | 6 +-
arch/s390/kernel/ftrace.c | 3 +-
arch/x86/include/asm/ftrace.h | 7 +
arch/x86/kernel/ftrace.c | 6 +-
arch/x86/kernel/tracepoint.c | 6 -
include/linux/bootconfig.h | 10 +
include/linux/ftrace.h | 4 +-
include/linux/kprobes.h | 2 +-
init/Kconfig | 21 +-
init/main.c | 38 ++--
kernel/kprobes.c | 144 +++++++-------
kernel/trace/Makefile | 4 +
kernel/trace/ftrace.c | 210 ++++++++++++++++----
kernel/trace/pid_list.c | 4 +-
kernel/trace/ring_buffer.c | 81 ++++++--
kernel/trace/trace.c | 72 ++++---
kernel/trace/trace.h | 26 ++-
kernel/trace/trace_boot.c | 2 +-
kernel/trace/trace_dynevent.c | 9 +-
kernel/trace/trace_eprobe.c | 24 +--
kernel/trace/trace_events.c | 69 +++----
kernel/trace/trace_events_filter.c | 2 +-
kernel/trace/trace_events_hist.c | 191 +++++++++---------
kernel/trace/trace_events_trigger.c | 324 +++++++++++--------------------
kernel/trace/trace_kprobe.c | 15 +-
kernel/trace/trace_osnoise.c | 22 ++-
kernel/trace/trace_output.c | 25 ++-
kernel/trace/trace_recursion_record.c | 7 +-
kernel/trace/trace_selftest.c | 3 +
kernel/trace/trace_syscalls.c | 35 ++--
kernel/trace/tracing_map.c | 3 +-
lib/.gitignore | 1 +
lib/Makefile | 10 +-
lib/bootconfig-data.S | 10 +
lib/bootconfig.c | 13 ++
40 files changed, 822 insertions(+), 646 deletions(-)
create mode 100644 lib/bootconfig-data.S
---------------------------
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