summaryrefslogtreecommitdiff
path: root/include/linux/ftrace.h
diff options
context:
space:
mode:
authorSong Liu <song@kernel.org>2022-07-20 03:21:23 +0300
committerDaniel Borkmann <daniel@iogearbox.net>2022-07-22 23:04:24 +0300
commitf96f644ab97abeed3f7007c953836a574ce928cc (patch)
tree7253962a390954e8b9139e84a387a32655181e55 /include/linux/ftrace.h
parentf664f9c6b4a1bb9a10af812df0fbbf6aac28fcc6 (diff)
downloadlinux-f96f644ab97abeed3f7007c953836a574ce928cc.tar.xz
ftrace: Add modify_ftrace_direct_multi_nolock
This is similar to modify_ftrace_direct_multi, but does not acquire direct_mutex. This is useful when direct_mutex is already locked by the user. Signed-off-by: Song Liu <song@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> Link: https://lore.kernel.org/bpf/20220720002126.803253-2-song@kernel.org
Diffstat (limited to 'include/linux/ftrace.h')
-rw-r--r--include/linux/ftrace.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 979f6bfa2c25..acb35243ce5d 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -340,6 +340,7 @@ unsigned long ftrace_find_rec_direct(unsigned long ip);
int register_ftrace_direct_multi(struct ftrace_ops *ops, unsigned long addr);
int unregister_ftrace_direct_multi(struct ftrace_ops *ops, unsigned long addr);
int modify_ftrace_direct_multi(struct ftrace_ops *ops, unsigned long addr);
+int modify_ftrace_direct_multi_nolock(struct ftrace_ops *ops, unsigned long addr);
#else
struct ftrace_ops;
@@ -384,6 +385,10 @@ static inline int modify_ftrace_direct_multi(struct ftrace_ops *ops, unsigned lo
{
return -ENODEV;
}
+static inline int modify_ftrace_direct_multi_nolock(struct ftrace_ops *ops, unsigned long addr)
+{
+ return -ENODEV;
+}
#endif /* CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS */
#ifndef CONFIG_HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS