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| author | John Keeping <john@metanate.com> | 2023-03-27 18:36:46 +0100 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2023-04-03 11:52:04 -0400 |
| commit | ea65b41807a26495ff2a73dd8b1bab2751940887 (patch) | |
| tree | ea25cfc7a422eaaf0236539d035f75d72f3e0c37 /include | |
| parent | 6455b6163d8c680366663cdb8c679514d55fc30c (diff) | |
| download | lwn-ea65b41807a26495ff2a73dd8b1bab2751940887.tar.gz lwn-ea65b41807a26495ff2a73dd8b1bab2751940887.zip | |
ftrace: Mark get_lock_parent_ip() __always_inline
If the compiler decides not to inline this function then preemption
tracing will always show an IP inside the preemption disabling path and
never the function actually calling preempt_{enable,disable}.
Link: https://lore.kernel.org/linux-trace-kernel/20230327173647.1690849-1-john@metanate.com
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: stable@vger.kernel.org
Fixes: f904f58263e1d ("sched/debug: Fix preempt_disable_ip recording for preempt_disable()")
Signed-off-by: John Keeping <john@metanate.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ftrace.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 366c730beaa3..402fc061de75 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -980,7 +980,7 @@ static inline void __ftrace_enabled_restore(int enabled) #define CALLER_ADDR5 ((unsigned long)ftrace_return_address(5)) #define CALLER_ADDR6 ((unsigned long)ftrace_return_address(6)) -static inline unsigned long get_lock_parent_ip(void) +static __always_inline unsigned long get_lock_parent_ip(void) { unsigned long addr = CALLER_ADDR0; |