tracefs: Annotate tracefs_ops with __ro_after_init

tracefs_ops is initialized inside tracefs_create_instance_dir and not modified after. tracefs_create_instance_dir allows for initialization only once, and is called from create_trace_instances(marked __init), which is called from tracer_init_tracefs(marked __init). Also, mark tracefs_create_instance_dir as __init. Link: http://lkml.kernel.org/r/[email protected] Reviewed-by: Kees Cook <[email protected]> Signed-off-by: Zubin Mithra <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
wafgo · Jul 31, 2018 · 5248ee8 · 5248ee8
1 parent c3bc8fd
commit 5248ee8
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
@@ -53,7 +53,7 @@ static const struct file_operations tracefs_file_operations = {
 static struct tracefs_dir_ops {
 	int (*mkdir)(const char *name);
 	int (*rmdir)(const char *name);
-} tracefs_ops;
+} tracefs_ops __ro_after_init;
 
 static char *get_dname(struct dentry *dentry)
 {
@@ -478,7 +478,8 @@ struct dentry *tracefs_create_dir(const char *name, struct dentry *parent)
  *
  * Returns the dentry of the instances directory.
  */
-struct dentry *tracefs_create_instance_dir(const char *name, struct dentry *parent,
+__init struct dentry *tracefs_create_instance_dir(const char *name,
+					  struct dentry *parent,
 					  int (*mkdir)(const char *name),
 					  int (*rmdir)(const char *name))
 {