ring-buffer: Make ring_buffer_{un}map() simpler with guard(mutex)

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Convert the taking of the buffer->mutex and the cpu_buffer->mapping_lock
over to guard(mutex) and simplify the ring_buffer_map() and
ring_buffer_unmap() functions.

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Vincent Donnefort <vdonnefort@google.com>
Link: https://lore.kernel.org/20250527122009.267efb72@gandalf.local.home
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

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Steven Rostedt 2025-05-27 12:20:09 -04:00 • committed by Steven Rostedt (Google)

parent b2e7c6ed26

commit 60bc720e10

1 changed files with 11 additions and 24 deletions

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kernel/trace/ring_buffer.c

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