tracing: Remove the backup instance automatically after read

Browse source

Since the backup instance is readonly, after reading all data via pipe, no
data is left on the instance. Thus it can be removed safely after closing
all files.  This also removes it if user resets the ring buffer manually
via 'trace' file.

Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://patch.msgid.link/177502547711.1311542.12572973358010839400.stgit@mhiramat.tok.corp.google.com
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

...

This commit is contained in:

Masami Hiramatsu (Google) 2026-04-01 15:37:57 +09:00 • committed by Steven Rostedt (Google)

parent 2c79da099a

commit eca33fdab4

2 changed files with 79 additions and 6 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

79

kernel/trace/trace.c

View file

6

kernel/trace/trace.h

View file