881 	struct fasync_struct *fa, **fp;  in fasync_remove_entry()  local
886 	for (fp = fapp; (fa = *fp) != NULL; fp = &fa->fa_next) {  in fasync_remove_entry()
887 		if (fa->fa_file != filp)  in fasync_remove_entry()
890 		write_lock_irq(&fa->fa_lock);  in fasync_remove_entry()
891 		fa->fa_file = NULL;  in fasync_remove_entry()
892 		write_unlock_irq(&fa->fa_lock);  in fasync_remove_entry()
894 		*fp = fa->fa_next;  in fasync_remove_entry()
895 		call_rcu(&fa->fa_rcu, fasync_free_rcu);  in fasync_remove_entry()
929         struct fasync_struct *fa, **fp;  in fasync_insert_entry()  local
933 	for (fp = fapp; (fa = *fp) != NULL; fp = &fa->fa_next) {  in fasync_insert_entry()
934 		if (fa->fa_file != filp)  in fasync_insert_entry()
937 		write_lock_irq(&fa->fa_lock);  in fasync_insert_entry()
938 		fa->fa_fd = fd;  in fasync_insert_entry()
939 		write_unlock_irq(&fa->fa_lock);  in fasync_insert_entry()
954 	return fa;  in fasync_insert_entry()
1002 static void kill_fasync_rcu(struct fasync_struct *fa, int sig, int band)  in kill_fasync_rcu()  argument
1004 	while (fa) {  in kill_fasync_rcu()
1008 		if (fa->magic != FASYNC_MAGIC) {  in kill_fasync_rcu()
1013 		read_lock_irqsave(&fa->fa_lock, flags);  in kill_fasync_rcu()
1014 		if (fa->fa_file) {  in kill_fasync_rcu()
1015 			fown = &fa->fa_file->f_owner;  in kill_fasync_rcu()
1020 				send_sigio(fown, fa->fa_fd, band);  in kill_fasync_rcu()
1022 		read_unlock_irqrestore(&fa->fa_lock, flags);  in kill_fasync_rcu()
1023 		fa = rcu_dereference(fa->fa_next);  in kill_fasync_rcu()