tracing: Add a trace remote module for testing

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Add a module to help testing the tracefs support for trace remotes. This
module:

  * Use simple_ring_buffer to write into a ring-buffer.
  * Declare a single "selftest" event that can be triggered from
    user-space.
  * Register a "test" trace remote.

This is intended to be used by trace remote selftests.

Link: https://patch.msgid.link/20260309162516.2623589-15-vdonnefort@google.com
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

...

This commit is contained in:

Vincent Donnefort 2026-03-09 16:25:00 +00:00 • committed by Steven Rostedt (Google)

parent 34e5b958bd

commit ea908a2b79

5 changed files with 282 additions and 0 deletions

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1

fs/tracefs/inode.c

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8

kernel/trace/Kconfig

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2

kernel/trace/Makefile

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261

kernel/trace/remote_test.c

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10

kernel/trace/remote_test_events.h

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