If CONFIG_FUNCTION_GRAPH_TRACER is enabled function sched_clock() in
kernel/time/sched_clock.c is marked as notrace. However, functions
raw_read_seqcount and read_seqcount_retry are marked as inline. If
CONFIG_OPTIMIZE_INLINING is set that will make the two functions
tracable which they shouldn't.
Rework so that functions raw_read_seqcount and read_seqcount_retry are
marked with __always_inline so they will be inlined even if
CONFIG_OPTIMIZE_INLINING is turned on.
Signed-off-by: Anders Roxell <anders.rox...@linaro.org>
---
include/linux/seqlock.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index bcf4cf26b8c8..1b18e3df186e 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -127,7 +127,7 @@ static inline unsigned __read_seqcount_begin(const
seqcount_t *s)
* seqcount without any lockdep checking and without checking or
* masking the LSB. Calling code is responsible for handling that.
*/
-static inline unsigned raw_read_seqcount(const seqcount_t *s)
+static __always_inline unsigned raw_read_seqcount(const seqcount_t *s)
{
unsigned ret = READ_ONCE(s->sequence);
smp_rmb();
@@ -215,7 +215,8 @@ static inline int __read_seqcount_retry(const seqcount_t
*s, unsigned start)
* If the critical section was invalid, it must be ignored (and typically
* retried).
*/
-static inline int read_seqcount_retry(const seqcount_t *s, unsigned start)
+static
+__always_inline int read_seqcount_retry(const seqcount_t *s, unsigned start)
{
smp_rmb();
return __read_seqcount_retry(s, start);
--
2.20.1
