58 static char *get_dname(struct dentry *dentry)  in get_dname()  argument
62 	int len = dentry->d_name.len;  in get_dname()
64 	dname = dentry->d_name.name;  in get_dname()
73 static int tracefs_syscall_mkdir(struct inode *inode, struct dentry *dentry, umode_t mode)  in tracefs_syscall_mkdir()  argument
78 	name = get_dname(dentry);  in tracefs_syscall_mkdir()
96 static int tracefs_syscall_rmdir(struct inode *inode, struct dentry *dentry)  in tracefs_syscall_rmdir()  argument
101 	name = get_dname(dentry);  in tracefs_syscall_rmdir()
113 	mutex_unlock(&dentry->d_inode->i_mutex);  in tracefs_syscall_rmdir()
118 	mutex_lock(&dentry->d_inode->i_mutex);  in tracefs_syscall_rmdir()
244 static int tracefs_show_options(struct seq_file *m, struct dentry *root)  in tracefs_show_options()
302 static struct dentry *trace_mount(struct file_system_type *fs_type,  in trace_mount()
317 static struct dentry *start_creating(const char *name, struct dentry *parent)  in start_creating()
319 	struct dentry *dentry;  in start_creating()  local
338 	dentry = lookup_one_len(name, parent, strlen(name));  in start_creating()
339 	if (!IS_ERR(dentry) && dentry->d_inode) {  in start_creating()
340 		dput(dentry);  in start_creating()
341 		dentry = ERR_PTR(-EEXIST);  in start_creating()
343 	if (IS_ERR(dentry))  in start_creating()
345 	return dentry;  in start_creating()
348 static struct dentry *failed_creating(struct dentry *dentry)  in failed_creating()  argument
350 	mutex_unlock(&dentry->d_parent->d_inode->i_mutex);  in failed_creating()
351 	dput(dentry);  in failed_creating()
356 static struct dentry *end_creating(struct dentry *dentry)  in end_creating()  argument
358 	mutex_unlock(&dentry->d_parent->d_inode->i_mutex);  in end_creating()
359 	return dentry;  in end_creating()
388 struct dentry *tracefs_create_file(const char *name, umode_t mode,  in tracefs_create_file()
389 				   struct dentry *parent, void *data,  in tracefs_create_file()
392 	struct dentry *dentry;  in tracefs_create_file()  local
398 	dentry = start_creating(name, parent);  in tracefs_create_file()
400 	if (IS_ERR(dentry))  in tracefs_create_file()
403 	inode = tracefs_get_inode(dentry->d_sb);  in tracefs_create_file()
405 		return failed_creating(dentry);  in tracefs_create_file()
410 	d_instantiate(dentry, inode);  in tracefs_create_file()
411 	fsnotify_create(dentry->d_parent->d_inode, dentry);  in tracefs_create_file()
412 	return end_creating(dentry);  in tracefs_create_file()
415 static struct dentry *__create_dir(const char *name, struct dentry *parent,  in __create_dir()
418 	struct dentry *dentry = start_creating(name, parent);  in __create_dir()  local
421 	if (IS_ERR(dentry))  in __create_dir()
424 	inode = tracefs_get_inode(dentry->d_sb);  in __create_dir()
426 		return failed_creating(dentry);  in __create_dir()
434 	d_instantiate(dentry, inode);  in __create_dir()
435 	inc_nlink(dentry->d_parent->d_inode);  in __create_dir()
436 	fsnotify_mkdir(dentry->d_parent->d_inode, dentry);  in __create_dir()
437 	return end_creating(dentry);  in __create_dir()
457 struct dentry *tracefs_create_dir(const char *name, struct dentry *parent)  in tracefs_create_dir()
479 struct dentry *tracefs_create_instance_dir(const char *name, struct dentry *parent,  in tracefs_create_instance_dir()
483 	struct dentry *dentry;  in tracefs_create_instance_dir()  local
489 	dentry = __create_dir(name, parent, &tracefs_dir_inode_operations);  in tracefs_create_instance_dir()
490 	if (!dentry)  in tracefs_create_instance_dir()
496 	return dentry;  in tracefs_create_instance_dir()
499 static inline int tracefs_positive(struct dentry *dentry)  in tracefs_positive()  argument
501 	return dentry->d_inode && !d_unhashed(dentry);  in tracefs_positive()
504 static int __tracefs_remove(struct dentry *dentry, struct dentry *parent)  in __tracefs_remove()  argument
508 	if (tracefs_positive(dentry)) {  in __tracefs_remove()
509 		if (dentry->d_inode) {  in __tracefs_remove()
510 			dget(dentry);  in __tracefs_remove()
511 			switch (dentry->d_inode->i_mode & S_IFMT) {  in __tracefs_remove()
513 				ret = simple_rmdir(parent->d_inode, dentry);  in __tracefs_remove()
516 				simple_unlink(parent->d_inode, dentry);  in __tracefs_remove()
520 				d_delete(dentry);  in __tracefs_remove()
521 			dput(dentry);  in __tracefs_remove()
536 void tracefs_remove(struct dentry *dentry)  in tracefs_remove()  argument
538 	struct dentry *parent;  in tracefs_remove()
541 	if (IS_ERR_OR_NULL(dentry))  in tracefs_remove()
544 	parent = dentry->d_parent;  in tracefs_remove()
549 	ret = __tracefs_remove(dentry, parent);  in tracefs_remove()
563 void tracefs_remove_recursive(struct dentry *dentry)  in tracefs_remove_recursive()  argument
565 	struct dentry *child, *parent;  in tracefs_remove_recursive()
567 	if (IS_ERR_OR_NULL(dentry))  in tracefs_remove_recursive()
570 	parent = dentry->d_parent;  in tracefs_remove_recursive()
574 	parent = dentry;  in tracefs_remove_recursive()
617 	if (child != dentry)  in tracefs_remove_recursive()