From 0e860d07c29d70205d5ad48456ac7a133ccfb293 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Tue, 30 Dec 2025 15:50:04 +0100 Subject: ftrace: Export some of hash related functions We are going to use these functions in following changes. Signed-off-by: Jiri Olsa Signed-off-by: Andrii Nakryiko Reviewed-by: Steven Rostedt (Google) Link: https://lore.kernel.org/bpf/20251230145010.103439-4-jolsa@kernel.org --- include/linux/ftrace.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index cc869c59c1a6..a77b57a4aba2 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -82,6 +82,7 @@ static inline void early_trace_init(void) { } struct module; struct ftrace_hash; +struct ftrace_func_entry; #if defined(CONFIG_FUNCTION_TRACER) && defined(CONFIG_MODULES) && \ defined(CONFIG_DYNAMIC_FTRACE) @@ -405,6 +406,14 @@ enum ftrace_ops_cmd { typedef int (*ftrace_ops_func_t)(struct ftrace_ops *op, enum ftrace_ops_cmd cmd); #ifdef CONFIG_DYNAMIC_FTRACE + +#define FTRACE_HASH_DEFAULT_BITS 10 + +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); + /* The hash used to know what functions callbacks trace */ struct ftrace_ops_hash { struct ftrace_hash __rcu *notrace_hash; -- cgit v1.2.3