diff options
| author | Jiri Olsa <jolsa@kernel.org> | 2025-12-30 15:50:04 +0100 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2026-01-28 11:44:45 -0800 |
| commit | 0e860d07c29d70205d5ad48456ac7a133ccfb293 (patch) | |
| tree | 5414c388661d2d713732e12b5ff0bdb69edb56c8 /include/linux | |
| parent | 676bfeae7bd55ca405670798711ac7c46b48655d (diff) | |
ftrace: Export some of hash related functions
We are going to use these functions in following changes.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/bpf/20251230145010.103439-4-jolsa@kernel.org
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/ftrace.h | 9 |
1 files changed, 9 insertions, 0 deletions
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; |