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 	inode_unlock(dentry->d_inode);  in tracefs_syscall_rmdir()
118 	inode_lock(dentry->d_inode);  in tracefs_syscall_rmdir()
244 static int tracefs_show_options(struct seq_file *m, struct dentry *root)  in tracefs_show_options()
300 static struct dentry *trace_mount(struct file_system_type *fs_type,  in trace_mount()
315 static struct dentry *start_creating(const char *name, struct dentry *parent)  in start_creating()
317 	struct dentry *dentry;  in start_creating()  local
336 	dentry = lookup_one_len(name, parent, strlen(name));  in start_creating()
337 	if (!IS_ERR(dentry) && dentry->d_inode) {  in start_creating()
338 		dput(dentry);  in start_creating()
339 		dentry = ERR_PTR(-EEXIST);  in start_creating()
342 	if (IS_ERR(dentry)) {  in start_creating()
347 	return dentry;  in start_creating()
350 static struct dentry *failed_creating(struct dentry *dentry)  in failed_creating()  argument
352 	inode_unlock(dentry->d_parent->d_inode);  in failed_creating()
353 	dput(dentry);  in failed_creating()
358 static struct dentry *end_creating(struct dentry *dentry)  in end_creating()  argument
360 	inode_unlock(dentry->d_parent->d_inode);  in end_creating()
361 	return dentry;  in end_creating()
390 struct dentry *tracefs_create_file(const char *name, umode_t mode,  in tracefs_create_file()
391 				   struct dentry *parent, void *data,  in tracefs_create_file()
394 	struct dentry *dentry;  in tracefs_create_file()  local
400 	dentry = start_creating(name, parent);  in tracefs_create_file()
402 	if (IS_ERR(dentry))  in tracefs_create_file()
405 	inode = tracefs_get_inode(dentry->d_sb);  in tracefs_create_file()
407 		return failed_creating(dentry);  in tracefs_create_file()
412 	d_instantiate(dentry, inode);  in tracefs_create_file()
413 	fsnotify_create(dentry->d_parent->d_inode, dentry);  in tracefs_create_file()
414 	return end_creating(dentry);  in tracefs_create_file()
417 static struct dentry *__create_dir(const char *name, struct dentry *parent,  in __create_dir()
420 	struct dentry *dentry = start_creating(name, parent);  in __create_dir()  local
423 	if (IS_ERR(dentry))  in __create_dir()
426 	inode = tracefs_get_inode(dentry->d_sb);  in __create_dir()
428 		return failed_creating(dentry);  in __create_dir()
436 	d_instantiate(dentry, inode);  in __create_dir()
437 	inc_nlink(dentry->d_parent->d_inode);  in __create_dir()
438 	fsnotify_mkdir(dentry->d_parent->d_inode, dentry);  in __create_dir()
439 	return end_creating(dentry);  in __create_dir()
459 struct dentry *tracefs_create_dir(const char *name, struct dentry *parent)  in tracefs_create_dir()
481 __init struct dentry *tracefs_create_instance_dir(const char *name,  in tracefs_create_instance_dir()
482 					  struct dentry *parent,  in tracefs_create_instance_dir()
486 	struct dentry *dentry;  in tracefs_create_instance_dir()  local
492 	dentry = __create_dir(name, parent, &tracefs_dir_inode_operations);  in tracefs_create_instance_dir()
493 	if (!dentry)  in tracefs_create_instance_dir()
499 	return dentry;  in tracefs_create_instance_dir()
502 static int __tracefs_remove(struct dentry *dentry, struct dentry *parent)  in __tracefs_remove()  argument
506 	if (simple_positive(dentry)) {  in __tracefs_remove()
507 		if (dentry->d_inode) {  in __tracefs_remove()
508 			dget(dentry);  in __tracefs_remove()
509 			switch (dentry->d_inode->i_mode & S_IFMT) {  in __tracefs_remove()
511 				ret = simple_rmdir(parent->d_inode, dentry);  in __tracefs_remove()
514 				simple_unlink(parent->d_inode, dentry);  in __tracefs_remove()
518 				d_delete(dentry);  in __tracefs_remove()
519 			dput(dentry);  in __tracefs_remove()
534 void tracefs_remove(struct dentry *dentry)  in tracefs_remove()  argument
536 	struct dentry *parent;  in tracefs_remove()
539 	if (IS_ERR_OR_NULL(dentry))  in tracefs_remove()
542 	parent = dentry->d_parent;  in tracefs_remove()
544 	ret = __tracefs_remove(dentry, parent);  in tracefs_remove()
558 void tracefs_remove_recursive(struct dentry *dentry)  in tracefs_remove_recursive()  argument
560 	struct dentry *child, *parent;  in tracefs_remove_recursive()
562 	if (IS_ERR_OR_NULL(dentry))  in tracefs_remove_recursive()
565 	parent = dentry;  in tracefs_remove_recursive()
608 	if (child != dentry)  in tracefs_remove_recursive()