From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 1 Aug 2025 17:23:13 +0000 (-0700)
Subject: Merge tag 'trace-tools-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace... 
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5172a777248e56dbae22b55231d24c7ecc6393f9;p=thirdparty%2Fkernel%2Flinux.git

Merge tag 'trace-tools-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing tools updates from Steven Rostedt:

 - Introduce enum timerlat_tracing_mode

   Now that BPF based sampling has been added to timerlat, add an enum
   to represent which mode timerlat is running in

 - Add action on timelat threshold feature

   A new option, --on-threshold, is added, taking an argument that
   further specifies the action. Actions added in this patch are:

     - trace[,file=<filename>]: Saves tracefs buffer, optionally taking a
             filename
     - signal,num=<sig>,pid=<pid>: Sends signal to process. "parent" might
             be specified instead of number to send signal to parent process
     - shell,command=<command>: Execute shell command

 - Allow resuming tracing in timerlat bpf

   rtla-timerlat BPF program uses a global variable stored in a .bss
   section to store whether tracing has been stopped. Map it to allow it
   to resume tracing after it has been stopped

 - Add continue action to timerlat

   Introduce option to resume tracing after a latency threshold
   overflow. The option is implemented as an action named "continue"

 - Add action on end feature to timerlat

   Implement actions on end next to actions on threshold. A new option,
   --on-end is added, parallel to --on-threshold. Instead of being
   executed whenever a latency threshold is reached, it is executed at
   the end of the measurement

 - Have rtla tests check output with grep

   Add argument to the check command in the test suite that takes a
   regular expression that the output of rtla command is checked
   against. This allows testing for specific information in rtla output
   in addition to checking the return value

 - Add tests for timerlat actions

 - Update the documentation for the new features

* tag 'trace-tools-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  rtla/tests: Test timerlat -P option using actions
  rtla/tests: Add grep checks for base test cases
  Documentation/rtla: Add actions feature
  rtla/tests: Limit duration to maximum of 10s
  rtla/tests: Add tests for actions
  rtla/tests: Check rtla output with grep
  rtla/timerlat: Add action on end feature
  rtla/timerlat: Add continue action
  rtla/timerlat_bpf: Allow resuming tracing
  rtla/timerlat: Add action on threshold feature
  rtla/timerlat: Introduce enum timerlat_tracing_mode
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5172a777248e56dbae22b55231d24c7ecc6393f9