882 	struct fasync_struct *fa, **fp;  in fasync_remove_entry()  local
887 	for (fp = fapp; (fa = *fp) != NULL; fp = &fa->fa_next) {  in fasync_remove_entry()
888 		if (fa->fa_file != filp)  in fasync_remove_entry()
891 		write_lock_irq(&fa->fa_lock);  in fasync_remove_entry()
892 		fa->fa_file = NULL;  in fasync_remove_entry()
893 		write_unlock_irq(&fa->fa_lock);  in fasync_remove_entry()
895 		*fp = fa->fa_next;  in fasync_remove_entry()
896 		call_rcu(&fa->fa_rcu, fasync_free_rcu);  in fasync_remove_entry()
930         struct fasync_struct *fa, **fp;  in fasync_insert_entry()  local
934 	for (fp = fapp; (fa = *fp) != NULL; fp = &fa->fa_next) {  in fasync_insert_entry()
935 		if (fa->fa_file != filp)  in fasync_insert_entry()
938 		write_lock_irq(&fa->fa_lock);  in fasync_insert_entry()
939 		fa->fa_fd = fd;  in fasync_insert_entry()
940 		write_unlock_irq(&fa->fa_lock);  in fasync_insert_entry()
955 	return fa;  in fasync_insert_entry()
1003 static void kill_fasync_rcu(struct fasync_struct *fa, int sig, int band)  in kill_fasync_rcu()  argument
1005 	while (fa) {  in kill_fasync_rcu()
1009 		if (fa->magic != FASYNC_MAGIC) {  in kill_fasync_rcu()
1014 		read_lock_irqsave(&fa->fa_lock, flags);  in kill_fasync_rcu()
1015 		if (fa->fa_file) {  in kill_fasync_rcu()
1016 			fown = &fa->fa_file->f_owner;  in kill_fasync_rcu()
1021 				send_sigio(fown, fa->fa_fd, band);  in kill_fasync_rcu()
1023 		read_unlock_irqrestore(&fa->fa_lock, flags);  in kill_fasync_rcu()
1024 		fa = rcu_dereference(fa->fa_next);  in kill_fasync_rcu()