vfs: do bulk POLL* -> EPOLL* replacement
This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:
for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done
done
with de-mangling cleanups yet to come.
NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do. But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.
The next patch from Al will sort out the final differences, and we
should be all done.
Scripted-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c
index 88aa8ad..744c637 100644
--- a/net/rds/af_rds.c
+++ b/net/rds/af_rds.c
@@ -137,17 +137,17 @@ static int rds_getname(struct socket *sock, struct sockaddr *uaddr,
/*
* RDS' poll is without a doubt the least intuitive part of the interface,
- * as POLLIN and POLLOUT do not behave entirely as you would expect from
+ * as EPOLLIN and EPOLLOUT do not behave entirely as you would expect from
* a network protocol.
*
- * POLLIN is asserted if
+ * EPOLLIN is asserted if
* - there is data on the receive queue.
* - to signal that a previously congested destination may have become
* uncongested
* - A notification has been queued to the socket (this can be a congestion
* update, or a RDMA completion).
*
- * POLLOUT is asserted if there is room on the send queue. This does not mean
+ * EPOLLOUT is asserted if there is room on the send queue. This does not mean
* however, that the next sendmsg() call will succeed. If the application tries
* to send to a congested destination, the system call may still fail (and
* return ENOBUFS).
@@ -167,22 +167,22 @@ static __poll_t rds_poll(struct file *file, struct socket *sock,
read_lock_irqsave(&rs->rs_recv_lock, flags);
if (!rs->rs_cong_monitor) {
- /* When a congestion map was updated, we signal POLLIN for
+ /* When a congestion map was updated, we signal EPOLLIN for
* "historical" reasons. Applications can also poll for
* WRBAND instead. */
if (rds_cong_updated_since(&rs->rs_cong_track))
- mask |= (POLLIN | POLLRDNORM | POLLWRBAND);
+ mask |= (EPOLLIN | EPOLLRDNORM | EPOLLWRBAND);
} else {
spin_lock(&rs->rs_lock);
if (rs->rs_cong_notify)
- mask |= (POLLIN | POLLRDNORM);
+ mask |= (EPOLLIN | EPOLLRDNORM);
spin_unlock(&rs->rs_lock);
}
if (!list_empty(&rs->rs_recv_queue) ||
!list_empty(&rs->rs_notify_queue))
- mask |= (POLLIN | POLLRDNORM);
+ mask |= (EPOLLIN | EPOLLRDNORM);
if (rs->rs_snd_bytes < rds_sk_sndbuf(rs))
- mask |= (POLLOUT | POLLWRNORM);
+ mask |= (EPOLLOUT | EPOLLWRNORM);
read_unlock_irqrestore(&rs->rs_recv_lock, flags);
/* clear state any time we wake a seen-congested socket */