Commit 70efce27 authored by Will Newton's avatar Will Newton Committed by David S. Miller
Browse files

net/ipv4/tcp.c: Fix use of PULLHUP instead of POLLHUP in comments. 



Change PULLHUP to POLLHUP in tcp_poll comments and clean up another
comment for grammar and coding style.

Signed-off-by: default avatarWill Newton <will.newton@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7b1c65fa

net/ipv4/tcp.c

+4 −4
Original line number Diff line number Diff line
@@ -344,8 +344,8 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait) 
		return inet_csk_listen_poll(sk);



	/* Socket is not locked. We are protected from async events

	   by poll logic and correct handling of state changes

	   made by another threads is impossible in any case.

	 * by poll logic and correct handling of state changes

	 * made by other threads is impossible in any case.

	 */



	mask = 0;
@@ -371,10 +371,10 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait) 
	 * in state CLOSE_WAIT. One solution is evident --- to set POLLHUP

	 * if and only if shutdown has been made in both directions.

	 * Actually, it is interesting to look how Solaris and DUX

	 * solve this dilemma. I would prefer, if PULLHUP were maskable,

	 * solve this dilemma. I would prefer, if POLLHUP were maskable,

	 * then we could set it on SND_SHUTDOWN. BTW examples given

	 * in Stevens' books assume exactly this behaviour, it explains

	 * why PULLHUP is incompatible with POLLOUT.	--ANK

	 * why POLLHUP is incompatible with POLLOUT.	--ANK

	 *

	 * NOTE. Check for TCP_CLOSE is added. The goal is to prevent

	 * blocking on fresh not-connected or disconnected socket. --ANK