]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
tracing: Use atomic64_inc_return() in trace_clock_counter()
authorUros Bizjak <ubizjak@gmail.com>
Mon, 7 Oct 2024 08:56:28 +0000 (10:56 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 14 Dec 2024 19:03:58 +0000 (20:03 +0100)
commitd1133dd57ef8a5f445c9fafd7128823f96c82636
treebc9be4d00609a2286264a0101e533929b3403195
parentf63a1caae97d9973b11b34059443969903a3b54d
tracing: Use atomic64_inc_return() in trace_clock_counter()

[ Upstream commit eb887c4567d1b0e7684c026fe7df44afa96589e6 ]

Use atomic64_inc_return(&ref) instead of atomic64_add_return(1, &ref)
to use optimized implementation and ease register pressure around
the primitive for targets that implement optimized variant.

Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20241007085651.48544-1-ubizjak@gmail.com
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
kernel/trace/trace_clock.c