Adding external ftrace_hash_count function so we could get hash count outside of ftrace object.
Signed-off-by: Jiri Olsa <[email protected]> --- include/linux/ftrace.h | 1 + kernel/trace/ftrace.c | 7 ++++++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 1a4d36fc9085..a1ea6ab29407 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -415,6 +415,7 @@ struct ftrace_hash *alloc_ftrace_hash(int size_bits); void free_ftrace_hash(struct ftrace_hash *hash); struct ftrace_func_entry *add_ftrace_hash_entry_direct(struct ftrace_hash *hash, unsigned long ip, unsigned long direct); +unsigned long ftrace_hash_count(struct ftrace_hash *hash); /* The hash used to know what functions callbacks trace */ struct ftrace_ops_hash { diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 1ce17c8af409..dd1844f882cd 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -6288,11 +6288,16 @@ int modify_ftrace_direct(struct ftrace_ops *ops, unsigned long addr) } EXPORT_SYMBOL_GPL(modify_ftrace_direct); -static unsigned long hash_count(struct ftrace_hash *hash) +static inline unsigned long hash_count(struct ftrace_hash *hash) { return hash ? hash->count : 0; } +unsigned long ftrace_hash_count(struct ftrace_hash *hash) +{ + return hash_count(hash); +} + /** * hash_add - adds two struct ftrace_hash and returns the result * @a: struct ftrace_hash object -- 2.52.0
