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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-16 17:23:55 +08:00
linux-next/Documentation/trace
Linus Torvalds cdf072acb5 Tracing updates for 6.1:
Major changes:
 
  - Changed location of tracing repo from personal git repo to:
    git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git
 
  - Added Masami Hiramatsu as co-maintainer
 
  - Updated MAINTAINERS file to separate out FTRACE as it is
    more than just TRACING.
 
 Minor changes:
 
  - Added Mark Rutland as FTRACE reviewer
 
  - Updated user_events to make it on its way to remove the BROKEN tag.
    The changes should now be acceptable but will run it through
    a cycle and hopefully we can remove the BROKEN tag next release.
 
  - Added filtering to eprobes
 
  - Added a delta time to the benchmark trace event
 
  - Have the histogram and filter callbacks called via a switch
    statement instead of indirect functions. This speeds it up to
    avoid retpolines.
 
  - Add a way to wake up ring buffer waiters waiting for the
    ring buffer to fill up to its watermark.
 
  - New ioctl() on the trace_pipe_raw file to wake up ring buffer
    waiters.
 
  - Wake up waiters when the ring buffer is disabled.
    A reader may block when the ring buffer is disabled,
    but if it was blocked when the ring buffer is disabled
    it should then wake up.
 
 Fixes:
 
  - Allow splice to read partially read ring buffer pages
    Fixes splice never moving forward.
 
  - Fix inverted compare that made the "shortest" ring buffer
    wait queue actually the longest.
 
  - Fix a race in the ring buffer between resetting a page when
    a writer goes to another page, and the reader.
 
  - Fix ftrace accounting bug when function hooks are added at
    boot up before the weak functions are set to "disabled".
 
  - Fix bug that freed a user allocated snapshot buffer when
    enabling a tracer.
 
  - Fix possible recursive locks in osnoise tracer
 
  - Fix recursive locking direct functions
 
  - And other minor clean ups and fixes
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Merge tag 'trace-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing updates from Steven Rostedt:
 "Major changes:

   - Changed location of tracing repo from personal git repo to:
     git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git

   - Added Masami Hiramatsu as co-maintainer

   - Updated MAINTAINERS file to separate out FTRACE as it is more than
     just TRACING.

  Minor changes:

   - Added Mark Rutland as FTRACE reviewer

   - Updated user_events to make it on its way to remove the BROKEN tag.
     The changes should now be acceptable but will run it through a
     cycle and hopefully we can remove the BROKEN tag next release.

   - Added filtering to eprobes

   - Added a delta time to the benchmark trace event

   - Have the histogram and filter callbacks called via a switch
     statement instead of indirect functions. This speeds it up to avoid
     retpolines.

   - Add a way to wake up ring buffer waiters waiting for the ring
     buffer to fill up to its watermark.

   - New ioctl() on the trace_pipe_raw file to wake up ring buffer
     waiters.

   - Wake up waiters when the ring buffer is disabled. A reader may
     block when the ring buffer is disabled, but if it was blocked when
     the ring buffer is disabled it should then wake up.

  Fixes:

   - Allow splice to read partially read ring buffer pages. This fixes
     splice never moving forward.

   - Fix inverted compare that made the "shortest" ring buffer wait
     queue actually the longest.

   - Fix a race in the ring buffer between resetting a page when a
     writer goes to another page, and the reader.

   - Fix ftrace accounting bug when function hooks are added at boot up
     before the weak functions are set to "disabled".

   - Fix bug that freed a user allocated snapshot buffer when enabling a
     tracer.

   - Fix possible recursive locks in osnoise tracer

   - Fix recursive locking direct functions

   - Other minor clean ups and fixes"

* tag 'trace-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (44 commits)
  ftrace: Create separate entry in MAINTAINERS for function hooks
  tracing: Update MAINTAINERS to reflect new tracing git repo
  tracing: Do not free snapshot if tracer is on cmdline
  ftrace: Still disable enabled records marked as disabled
  tracing/user_events: Move pages/locks into groups to prepare for namespaces
  tracing: Add Masami Hiramatsu as co-maintainer
  tracing: Remove unused variable 'dups'
  MAINTAINERS: add myself as a tracing reviewer
  ring-buffer: Fix race between reset page and reading page
  tracing/user_events: Update ABI documentation to align to bits vs bytes
  tracing/user_events: Use bits vs bytes for enabled status page data
  tracing/user_events: Use refcount instead of atomic for ref tracking
  tracing/user_events: Ensure user provided strings are safely formatted
  tracing/user_events: Use WRITE instead of READ for io vector import
  tracing/user_events: Use NULL for strstr checks
  tracing: Fix spelling mistake "preapre" -> "prepare"
  tracing: Wake up waiters when tracing is disabled
  tracing: Add ioctl() to force ring buffer waiters to wake up
  tracing: Wake up ring buffer waiters on closing of the file
  ring-buffer: Add ring_buffer_wake_waiters()
  ...
2022-10-10 12:20:55 -07:00
..
coresight coresight: etm4x: docs: Add documentation for 'ts_source' sysfs interface 2022-08-26 13:38:35 -06:00
postprocess tweewide: Fix most Shebang lines 2020-12-08 23:30:04 +09:00
rv rv/monitor: Add the wwnr monitor 2022-07-30 14:01:30 -04:00
boottime-trace.rst docs/trace: fix a label of boottime-trace 2021-12-10 13:58:53 -07:00
events-kmem.rst mm/lru: revise the comments of lru_lock 2020-12-15 14:48:04 -08:00
events-msr.rst Replace HTTP links with HTTPS ones: documentation 2020-06-08 09:30:19 -06:00
events-nmi.rst trace doc: convert trace/events-nmi.txt to rst format 2018-03-07 10:26:02 -07:00
events-power.rst PM: QoS: Simplify definitions of CPU latency QoS trace events 2020-02-13 11:26:39 +01:00
events.rst tracing: Add ustring operation to filtering string pointers 2022-01-14 03:42:24 -05:00
fprobe.rst docs: fprobe: Add fprobe description to ftrace-use.rst 2022-03-17 20:17:08 -07:00
ftrace-design.rst sh/ftrace: Move arch_ftrace_nmi_{enter,exit} into nmi exception 2020-05-19 15:51:18 +02:00
ftrace-uses.rst ftrace/documentation: Fix RST C code blocks 2020-11-18 11:45:23 -05:00
ftrace.rst tracing: Add documentation for trace clock tai 2022-04-27 17:19:30 -04:00
function-graph-fold.vim
hisi-ptt.rst docs: trace: Add HiSilicon PTT device driver documentation 2022-09-08 18:41:22 -06:00
histogram-design.rst Documentation: trace/histogram-design: drop doubled words 2020-07-05 14:40:55 -06:00
histogram.rst Delete duplicate words from kernel docs 2022-09-27 13:21:43 -06:00
hwlat_detector.rst trace/hwlat: Implement the per-cpu mode 2021-06-25 18:23:22 -04:00
index.rst docs: trace: Add HiSilicon PTT device driver documentation 2022-09-08 18:41:22 -06:00
intel_th.rst docs: trace: fix a typo 2020-08-11 10:22:15 -06:00
kprobes.rst docs, kprobes: Fix the wrong location of Kprobes 2022-09-29 13:07:52 -06:00
kprobetrace.rst tracing: Auto generate event name when creating a group of events 2022-07-24 19:11:17 -04:00
mmiotrace.rst Replace HTTP links with HTTPS ones: documentation 2020-06-08 09:30:19 -06:00
osnoise-tracer.rst docs: Remove duplicated words in trace/osnoise-tracer 2022-02-24 10:42:20 -07:00
ring-buffer-design.rst docs: trace: ring-buffer-design.rst: use the new SPDX tag 2020-09-24 11:07:44 -06:00
stm.rst Documentation: trace/stm: drop doubled words 2020-07-05 14:40:55 -06:00
sys-t.rst stm class: Document the MIPI SyS-T protocol usage 2018-10-11 12:12:55 +02:00
timerlat-tracer.rst Delete duplicate words from kernel docs 2022-09-27 13:21:43 -06:00
tracepoint-analysis.rst docs: Fix some broken references 2018-06-15 18:10:01 -03:00
tracepoints.rst tracepoints: Add helper to test if tracepoint is enabled in a header 2020-09-25 18:01:35 -04:00
uprobetracer.rst tracing: Auto generate event name when creating a group of events 2022-07-24 19:11:17 -04:00
user_events.rst tracing/user_events: Update ABI documentation to align to bits vs bytes 2022-09-29 10:17:37 -04:00