Commit 5248ee85 authored by Zubin Mithra's avatar Zubin Mithra Committed by Steven Rostedt (VMware)

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/20180725171901.4468-1-zsm@chromium.orgReviewed-by: default avatarKees Cook <keescook@chromium.org>
Signed-off-by: default avatarZubin Mithra <zsm@chromium.org>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent c3bc8fd6
...@@ -53,7 +53,7 @@ static const struct file_operations tracefs_file_operations = { ...@@ -53,7 +53,7 @@ static const struct file_operations tracefs_file_operations = {
static struct tracefs_dir_ops { static struct tracefs_dir_ops {
int (*mkdir)(const char *name); int (*mkdir)(const char *name);
int (*rmdir)(const char *name); int (*rmdir)(const char *name);
} tracefs_ops; } tracefs_ops __ro_after_init;
static char *get_dname(struct dentry *dentry) static char *get_dname(struct dentry *dentry)
{ {
...@@ -478,7 +478,8 @@ struct dentry *tracefs_create_dir(const char *name, struct dentry *parent) ...@@ -478,7 +478,8 @@ struct dentry *tracefs_create_dir(const char *name, struct dentry *parent)
* *
* Returns the dentry of the instances directory. * 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 (*mkdir)(const char *name),
int (*rmdir)(const char *name)) int (*rmdir)(const char *name))
{ {
......
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