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.org Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Zubin Mithra <zsm@chromium.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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@ -53,7 +53,7 @@ static const struct file_operations tracefs_file_operations = {
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static struct tracefs_dir_ops {
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int (*mkdir)(const char *name);
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int (*rmdir)(const char *name);
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} tracefs_ops;
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} tracefs_ops __ro_after_init;
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static char *get_dname(struct dentry *dentry)
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{
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@ -478,7 +478,8 @@ struct dentry *tracefs_create_dir(const char *name, struct dentry *parent)
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*
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* Returns the dentry of the instances directory.
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*/
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struct dentry *tracefs_create_instance_dir(const char *name, struct dentry *parent,
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__init struct dentry *tracefs_create_instance_dir(const char *name,
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struct dentry *parent,
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int (*mkdir)(const char *name),
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int (*rmdir)(const char *name))
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{
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