73 static char *get_dname(struct dentry *dentry)  in get_dname()  argument
77 	int len = dentry->d_name.len;  in get_dname()
79 	dname = dentry->d_name.name;  in get_dname()
89 				 struct inode *inode, struct dentry *dentry,  in tracefs_syscall_mkdir()  argument
96 	name = get_dname(dentry);  in tracefs_syscall_mkdir()
123 static int tracefs_syscall_rmdir(struct inode *inode, struct dentry *dentry)  in tracefs_syscall_rmdir()  argument
128 	name = get_dname(dentry);  in tracefs_syscall_rmdir()
140 	inode_unlock(d_inode(dentry));  in tracefs_syscall_rmdir()
145 	inode_lock(d_inode(dentry));  in tracefs_syscall_rmdir()
179 	struct inode *inode = d_backing_inode(path->dentry);  in tracefs_getattr()
186 static int tracefs_setattr(struct mnt_idmap *idmap, struct dentry *dentry,  in tracefs_setattr()  argument
190 	struct inode *inode = d_inode(dentry);  in tracefs_setattr()
199 	return simple_setattr(idmap, dentry, attr);  in tracefs_setattr()
354 static int tracefs_show_options(struct seq_file *m, struct dentry *root)  in tracefs_show_options()
388 static void tracefs_d_release(struct dentry *dentry)  in tracefs_d_release()  argument
390 	if (dentry->d_fsdata)  in tracefs_d_release()
391 		eventfs_d_release(dentry);  in tracefs_d_release()
394 static int tracefs_d_revalidate(struct dentry *dentry, unsigned int flags)  in tracefs_d_revalidate()  argument
396 	struct eventfs_inode *ei = dentry->d_fsdata;  in tracefs_d_revalidate()
440 static struct dentry *trace_mount(struct file_system_type *fs_type,  in trace_mount()
455 struct dentry *tracefs_start_creating(const char *name, struct dentry *parent)  in tracefs_start_creating()
457 	struct dentry *dentry;  in tracefs_start_creating()  local
477 		dentry = ERR_PTR(-ENOENT);  in tracefs_start_creating()
479 		dentry = lookup_one_len(name, parent, strlen(name));  in tracefs_start_creating()
480 	if (!IS_ERR(dentry) && d_inode(dentry)) {  in tracefs_start_creating()
481 		dput(dentry);  in tracefs_start_creating()
482 		dentry = ERR_PTR(-EEXIST);  in tracefs_start_creating()
485 	if (IS_ERR(dentry)) {  in tracefs_start_creating()
490 	return dentry;  in tracefs_start_creating()
493 struct dentry *tracefs_failed_creating(struct dentry *dentry)  in tracefs_failed_creating()  argument
495 	inode_unlock(d_inode(dentry->d_parent));  in tracefs_failed_creating()
496 	dput(dentry);  in tracefs_failed_creating()
501 struct dentry *tracefs_end_creating(struct dentry *dentry)  in tracefs_end_creating()  argument
503 	inode_unlock(d_inode(dentry->d_parent));  in tracefs_end_creating()
504 	return dentry;  in tracefs_end_creating()
508 static struct inode *instance_inode(struct dentry *parent, struct inode *inode)  in instance_inode()
553 struct dentry *tracefs_create_file(const char *name, umode_t mode,  in tracefs_create_file()
554 				   struct dentry *parent, void *data,  in tracefs_create_file()
558 	struct dentry *dentry;  in tracefs_create_file()  local
567 	dentry = tracefs_start_creating(name, parent);  in tracefs_create_file()
569 	if (IS_ERR(dentry))  in tracefs_create_file()
572 	inode = tracefs_get_inode(dentry->d_sb);  in tracefs_create_file()
574 		return tracefs_failed_creating(dentry);  in tracefs_create_file()
583 	inode->i_uid = d_inode(dentry->d_parent)->i_uid;  in tracefs_create_file()
584 	inode->i_gid = d_inode(dentry->d_parent)->i_gid;  in tracefs_create_file()
585 	d_instantiate(dentry, inode);  in tracefs_create_file()
586 	fsnotify_create(d_inode(dentry->d_parent), dentry);  in tracefs_create_file()
587 	return tracefs_end_creating(dentry);  in tracefs_create_file()
590 static struct dentry *__create_dir(const char *name, struct dentry *parent,  in __create_dir()
594 	struct dentry *dentry = tracefs_start_creating(name, parent);  in __create_dir()  local
597 	if (IS_ERR(dentry))  in __create_dir()
600 	inode = tracefs_get_inode(dentry->d_sb);  in __create_dir()
602 		return tracefs_failed_creating(dentry);  in __create_dir()
608 	inode->i_uid = d_inode(dentry->d_parent)->i_uid;  in __create_dir()
609 	inode->i_gid = d_inode(dentry->d_parent)->i_gid;  in __create_dir()
616 	d_instantiate(dentry, inode);  in __create_dir()
617 	inc_nlink(d_inode(dentry->d_parent));  in __create_dir()
618 	fsnotify_mkdir(d_inode(dentry->d_parent), dentry);  in __create_dir()
619 	return tracefs_end_creating(dentry);  in __create_dir()
639 struct dentry *tracefs_create_dir(const char *name, struct dentry *parent)  in tracefs_create_dir()
664 __init struct dentry *tracefs_create_instance_dir(const char *name,  in tracefs_create_instance_dir()
665 					  struct dentry *parent,  in tracefs_create_instance_dir()
669 	struct dentry *dentry;  in tracefs_create_instance_dir()  local
675 	dentry = __create_dir(name, parent, &tracefs_instance_dir_inode_operations);  in tracefs_create_instance_dir()
676 	if (!dentry)  in tracefs_create_instance_dir()
682 	return dentry;  in tracefs_create_instance_dir()
685 static void remove_one(struct dentry *victim)  in remove_one()
698 void tracefs_remove(struct dentry *dentry)  in tracefs_remove()  argument
700 	if (IS_ERR_OR_NULL(dentry))  in tracefs_remove()
704 	simple_recursive_removal(dentry, remove_one);  in tracefs_remove()