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

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

Signed-off-by: Will Newton <will.newton@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Will Newton 2008-07-16 20:13:43 -07:00 committed by David S. Miller
parent 7b1c65faa2
commit 70efce27fc
1 changed files with 4 additions and 4 deletions
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8
net/ipv4/tcp.c
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@ -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