diff options
| author | Jiri Olsa <jolsa@kernel.org> | 2025-12-30 15:50:03 +0100 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2026-01-28 11:44:43 -0800 |
| commit | 676bfeae7bd55ca405670798711ac7c46b48655d (patch) | |
| tree | 781b7cdb3dc73c5d9b141a9130fafcf081a549df /kernel | |
| parent | 4be42c92220128b3128854a2d6b0f0ad0bcedbdb (diff) | |
ftrace: Make alloc_and_copy_ftrace_hash direct friendly
Make alloc_and_copy_ftrace_hash to copy also direct address
for each hash entry.
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/20251230145010.103439-3-jolsa@kernel.org
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/ftrace.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 6040aacc97da..2a63860c172e 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1212,7 +1212,7 @@ static void __add_hash_entry(struct ftrace_hash *hash, } static struct ftrace_func_entry * -add_hash_entry(struct ftrace_hash *hash, unsigned long ip) +add_hash_entry_direct(struct ftrace_hash *hash, unsigned long ip, unsigned long direct) { struct ftrace_func_entry *entry; @@ -1221,11 +1221,18 @@ add_hash_entry(struct ftrace_hash *hash, unsigned long ip) return NULL; entry->ip = ip; + entry->direct = direct; __add_hash_entry(hash, entry); return entry; } +static struct ftrace_func_entry * +add_hash_entry(struct ftrace_hash *hash, unsigned long ip) +{ + return add_hash_entry_direct(hash, ip, 0); +} + static void free_hash_entry(struct ftrace_hash *hash, struct ftrace_func_entry *entry) @@ -1398,7 +1405,7 @@ alloc_and_copy_ftrace_hash(int size_bits, struct ftrace_hash *hash) size = 1 << hash->size_bits; for (i = 0; i < size; i++) { hlist_for_each_entry(entry, &hash->buckets[i], hlist) { - if (add_hash_entry(new_hash, entry->ip) == NULL) + if (add_hash_entry_direct(new_hash, entry->ip, entry->direct) == NULL) goto free_hash; } } |