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>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 6184c100a94a..79abf70a126d 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -166,7 +166,7 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
  * @wait:	Poll table structure pointer for which the driver adds
  *		a wait queue
  *
- * Return: (POLLIN | POLLRDNORM) if data is available for reading
+ * Return: (EPOLLIN | EPOLLRDNORM) if data is available for reading
  *	   or 0 for other cases
  */
 __poll_t iio_buffer_poll(struct file *filp,
@@ -180,7 +180,7 @@ __poll_t iio_buffer_poll(struct file *filp,
 
 	poll_wait(filp, &rb->pollq, wait);
 	if (iio_buffer_ready(indio_dev, rb, rb->watermark, 0))
-		return POLLIN | POLLRDNORM;
+		return EPOLLIN | EPOLLRDNORM;
 	return 0;
 }
 
@@ -1396,7 +1396,7 @@ static int iio_push_to_buffer(struct iio_buffer *buffer, const void *data)
 	 * We can't just test for watermark to decide if we wake the poll queue
 	 * because read may request less samples than the watermark.
 	 */
-	wake_up_interruptible_poll(&buffer->pollq, POLLIN | POLLRDNORM);
+	wake_up_interruptible_poll(&buffer->pollq, EPOLLIN | EPOLLRDNORM);
 	return 0;
 }