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/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 478a9b4..5c0e59e 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1344,7 +1344,7 @@ n_tty_receive_char_special(struct tty_struct *tty, unsigned char c)
put_tty_queue(c, ldata);
smp_store_release(&ldata->canon_head, ldata->read_head);
kill_fasync(&tty->fasync, SIGIO, POLL_IN);
- wake_up_interruptible_poll(&tty->read_wait, POLLIN);
+ wake_up_interruptible_poll(&tty->read_wait, EPOLLIN);
return 0;
}
}
@@ -1625,7 +1625,7 @@ static void __receive_buf(struct tty_struct *tty, const unsigned char *cp,
if (read_cnt(ldata)) {
kill_fasync(&tty->fasync, SIGIO, POLL_IN);
- wake_up_interruptible_poll(&tty->read_wait, POLLIN);
+ wake_up_interruptible_poll(&tty->read_wait, EPOLLIN);
}
}
@@ -2376,22 +2376,22 @@ static __poll_t n_tty_poll(struct tty_struct *tty, struct file *file,
poll_wait(file, &tty->read_wait, wait);
poll_wait(file, &tty->write_wait, wait);
if (input_available_p(tty, 1))
- mask |= POLLIN | POLLRDNORM;
+ mask |= EPOLLIN | EPOLLRDNORM;
else {
tty_buffer_flush_work(tty->port);
if (input_available_p(tty, 1))
- mask |= POLLIN | POLLRDNORM;
+ mask |= EPOLLIN | EPOLLRDNORM;
}
if (tty->packet && tty->link->ctrl_status)
- mask |= POLLPRI | POLLIN | POLLRDNORM;
+ mask |= EPOLLPRI | EPOLLIN | EPOLLRDNORM;
if (test_bit(TTY_OTHER_CLOSED, &tty->flags))
- mask |= POLLHUP;
+ mask |= EPOLLHUP;
if (tty_hung_up_p(file))
- mask |= POLLHUP;
+ mask |= EPOLLHUP;
if (tty->ops->write && !tty_is_writelocked(tty) &&
tty_chars_in_buffer(tty) < WAKEUP_CHARS &&
tty_write_room(tty) > 0)
- mask |= POLLOUT | POLLWRNORM;
+ mask |= EPOLLOUT | EPOLLWRNORM;
return mask;
}