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| author | Uros Bizjak <ubizjak@gmail.com> | 2024-10-07 10:56:28 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-14 20:03:58 +0100 |
| commit | d1133dd57ef8a5f445c9fafd7128823f96c82636 (patch) | |
| tree | bc9be4d00609a2286264a0101e533929b3403195 /kernel/trace | |
| parent | f63a1caae97d9973b11b34059443969903a3b54d (diff) | |
| download | linux-d1133dd57ef8a5f445c9fafd7128823f96c82636.tar.gz linux-d1133dd57ef8a5f445c9fafd7128823f96c82636.tar.bz2 linux-d1133dd57ef8a5f445c9fafd7128823f96c82636.zip | |
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>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace_clock.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace_clock.c b/kernel/trace/trace_clock.c index 4702efb00ff2..4cb2ebc439be 100644 --- a/kernel/trace/trace_clock.c +++ b/kernel/trace/trace_clock.c @@ -154,5 +154,5 @@ static atomic64_t trace_counter; */ u64 notrace trace_clock_counter(void) { - return atomic64_add_return(1, &trace_counter); + return atomic64_inc_return(&trace_counter); } |