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| author | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-06-05 21:03:35 +0300 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-06-06 19:45:17 +0300 |
| commit | 3afd801f4264c7a6c84957cd3ab653cfd8f61d3e (patch) | |
| tree | fc9944f056ea3797a78a9802f6e580086646bfda /kernel/trace | |
| parent | 5efe9688f9488e8e95177d03be2678021233e877 (diff) | |
| download | linux-3afd801f4264c7a6c84957cd3ab653cfd8f61d3e.tar.xz | |
ftrace: Rename dup_hash() and comment it
The name "dup_hash()" is a misnomer as it does not duplicate the hash that
is passed in, but instead moves its entities from that hash to a newly
allocated one. Rename it to "__move_hash()" (using starting underscores as
it is an internal function), and add some comments about what it does.
Link: https://lore.kernel.org/linux-trace-kernel/20240605180408.537723591@goodmis.org
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/ftrace.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 897d7541041c..f4b253d20df8 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1392,7 +1392,11 @@ ftrace_hash_rec_enable_modify(struct ftrace_ops *ops, int filter_hash); static int ftrace_hash_ipmodify_update(struct ftrace_ops *ops, struct ftrace_hash *new_hash); -static struct ftrace_hash *dup_hash(struct ftrace_hash *src, int size) +/* + * Allocate a new hash and remove entries from @src and move them to the new hash. + * On success, the @src hash will be empty and should be freed. + */ +static struct ftrace_hash *__move_hash(struct ftrace_hash *src, int size) { struct ftrace_func_entry *entry; struct ftrace_hash *new_hash; @@ -1439,7 +1443,7 @@ __ftrace_hash_move(struct ftrace_hash *src) if (ftrace_hash_empty(src)) return EMPTY_HASH; - return dup_hash(src, size); + return __move_hash(src, size); } static int |