97 	struct fown_struct *f_owner;  in file_f_owner_allocate()  local
99 	f_owner = file_f_owner(file);  in file_f_owner_allocate()
100 	if (f_owner)  in file_f_owner_allocate()
103 	f_owner = kzalloc_obj(struct fown_struct);  in file_f_owner_allocate()
104 	if (!f_owner)  in file_f_owner_allocate()
107 	rwlock_init(&f_owner->lock);  in file_f_owner_allocate()
108 	f_owner->file = file;  in file_f_owner_allocate()
110 	if (unlikely(cmpxchg(&file->f_owner, NULL, f_owner)))  in file_f_owner_allocate()
111 		kfree(f_owner);  in file_f_owner_allocate()
118 	struct fown_struct *f_owner;  in file_f_owner_release()  local
120 	f_owner = file_f_owner(file);  in file_f_owner_release()
121 	if (f_owner) {  in file_f_owner_release()
122 		put_pid(f_owner->pid);  in file_f_owner_release()
123 		kfree(f_owner);  in file_f_owner_release()
130 	struct fown_struct *f_owner;  in __f_setown()  local
132 	f_owner = file_f_owner(filp);  in __f_setown()
133 	if (WARN_ON_ONCE(!f_owner))  in __f_setown()
136 	write_lock_irq(&f_owner->lock);  in __f_setown()
137 	if (force || !f_owner->pid) {  in __f_setown()
138 		put_pid(f_owner->pid);  in __f_setown()
139 		f_owner->pid = get_pid(pid);  in __f_setown()
140 		f_owner->pid_type = type;  in __f_setown()
145 			f_owner->uid = cred->uid;  in __f_setown()
146 			f_owner->euid = cred->euid;  in __f_setown()
149 	write_unlock_irq(&f_owner->lock);  in __f_setown()
198 	struct fown_struct *f_owner;  in f_getown()  local
200 	f_owner = file_f_owner(filp);  in f_getown()
201 	if (!f_owner)  in f_getown()
204 	read_lock_irq(&f_owner->lock);  in f_getown()
206 	if (pid_task(f_owner->pid, f_owner->pid_type)) {  in f_getown()
207 		pid = pid_vnr(f_owner->pid);  in f_getown()
208 		if (f_owner->pid_type == PIDTYPE_PGID)  in f_getown()
212 	read_unlock_irq(&f_owner->lock);  in f_getown()
265 	struct fown_struct *f_owner;  in f_getown_ex()  local
268 	f_owner = file_f_owner(filp);  in f_getown_ex()
269 	if (f_owner) {  in f_getown_ex()
270 		read_lock_irq(&f_owner->lock);  in f_getown_ex()
272 		if (pid_task(f_owner->pid, f_owner->pid_type))  in f_getown_ex()
273 			owner.pid = pid_vnr(f_owner->pid);  in f_getown_ex()
275 		pid_type = f_owner->pid_type;  in f_getown_ex()
296 	if (f_owner)  in f_getown_ex()
297 		read_unlock_irq(&f_owner->lock);  in f_getown_ex()
311 	struct fown_struct *f_owner;  in f_getowner_uids()  local
316 	f_owner = file_f_owner(filp);  in f_getowner_uids()
317 	if (f_owner) {  in f_getowner_uids()
318 		read_lock_irq(&f_owner->lock);  in f_getowner_uids()
319 		src[0] = from_kuid(user_ns, f_owner->uid);  in f_getowner_uids()
320 		src[1] = from_kuid(user_ns, f_owner->euid);  in f_getowner_uids()
321 		read_unlock_irq(&f_owner->lock);  in f_getowner_uids()
423 	struct fown_struct *f_owner;  in f_owner_sig()  local
436 	f_owner = file_f_owner(filp);  in f_owner_sig()
438 		f_owner->signum = signum;  in f_owner_sig()
439 	else if (f_owner)  in f_owner_sig()
440 		ret = f_owner->signum;  in f_owner_sig()