FUSE has two functions with very similar name: fuse_direct_io() and
fuse_direct_IO().  Which is very confusing.  Rename one of them to remove
the ambiguity.

Signed-off-by: Luis Henriques <luis@igalia.com>
---
Hi!

Maybe fuse_sync_direct_io() isn't the best name either, but at least it'll
stop confusing me (and etags).

 fs/fuse/cuse.c   |  6 +++---
 fs/fuse/dax.c    |  2 +-
 fs/fuse/file.c   | 14 +++++++-------
 fs/fuse/fuse_i.h |  8 ++++----
 4 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
index 4079cf8e5974..01f61fc8e354 100644
--- a/fs/fuse/cuse.c
+++ b/fs/fuse/cuse.c
@@ -98,7 +98,7 @@ static ssize_t cuse_read_iter(struct kiocb *kiocb, struct iov_iter *to)
 	struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(kiocb);
 	loff_t pos = 0;
 
-	return fuse_direct_io(&io, to, &pos, FUSE_DIO_CUSE);
+	return fuse_sync_direct_io(&io, to, &pos, FUSE_DIO_CUSE);
 }
 
 static ssize_t cuse_write_iter(struct kiocb *kiocb, struct iov_iter *from)
@@ -109,8 +109,8 @@ static ssize_t cuse_write_iter(struct kiocb *kiocb, struct iov_iter *from)
 	 * No locking or generic_write_checks(), the server is
 	 * responsible for locking and sanity checks.
 	 */
-	return fuse_direct_io(&io, from, &pos,
-			      FUSE_DIO_WRITE | FUSE_DIO_CUSE);
+	return fuse_sync_direct_io(&io, from, &pos,
+				   FUSE_DIO_WRITE | FUSE_DIO_CUSE);
 }
 
 static int cuse_open(struct inode *inode, struct file *file)
diff --git a/fs/fuse/dax.c b/fs/fuse/dax.c
index 85cdf0199bc0..86e308960b24 100644
--- a/fs/fuse/dax.c
+++ b/fs/fuse/dax.c
@@ -709,7 +709,7 @@ static ssize_t fuse_dax_direct_write(struct kiocb *iocb, struct iov_iter *from)
 	struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(iocb);
 	ssize_t ret;
 
-	ret = fuse_direct_io(&io, from, &iocb->ki_pos, FUSE_DIO_WRITE);
+	ret = fuse_sync_direct_io(&io, from, &iocb->ki_pos, FUSE_DIO_WRITE);
 
 	fuse_write_update_attr(inode, iocb->ki_pos, ret);
 	return ret;
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 8d6135a6108a..bbdbc2dc3a07 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1654,8 +1654,8 @@ static int fuse_get_user_pages(struct fuse_args_pages *ap, struct iov_iter *ii,
 	return ret < 0 ? ret : 0;
 }
 
-ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter,
-		       loff_t *ppos, int flags)
+ssize_t fuse_sync_direct_io(struct fuse_io_priv *io, struct iov_iter *iter,
+			    loff_t *ppos, int flags)
 {
 	int write = flags & FUSE_DIO_WRITE;
 	int cuse = flags & FUSE_DIO_CUSE;
@@ -1756,7 +1756,7 @@ ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter,
 
 	return res > 0 ? res : err;
 }
-EXPORT_SYMBOL_GPL(fuse_direct_io);
+EXPORT_SYMBOL_GPL(fuse_sync_direct_io);
 
 static ssize_t __fuse_direct_read(struct fuse_io_priv *io,
 				  struct iov_iter *iter,
@@ -1765,7 +1765,7 @@ static ssize_t __fuse_direct_read(struct fuse_io_priv *io,
 	ssize_t res;
 	struct inode *inode = file_inode(io->iocb->ki_filp);
 
-	res = fuse_direct_io(io, iter, ppos, 0);
+	res = fuse_sync_direct_io(io, iter, ppos, 0);
 
 	fuse_invalidate_atime(inode);
 
@@ -1807,8 +1807,8 @@ static ssize_t fuse_direct_write_iter(struct kiocb *iocb, struct iov_iter *from)
 		} else {
 			struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(iocb);
 
-			res = fuse_direct_io(&io, from, &iocb->ki_pos,
-					     FUSE_DIO_WRITE);
+			res = fuse_sync_direct_io(&io, from, &iocb->ki_pos,
+						  FUSE_DIO_WRITE);
 			fuse_write_update_attr(inode, iocb->ki_pos, res);
 		}
 		if (res > 0 && mapping->nrpages) {
@@ -2788,7 +2788,7 @@ fuse_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
 	}
 
 	if (iov_iter_rw(iter) == WRITE) {
-		ret = fuse_direct_io(io, iter, &pos, FUSE_DIO_WRITE);
+		ret = fuse_sync_direct_io(io, iter, &pos, FUSE_DIO_WRITE);
 		fuse_invalidate_attr_mask(inode, FUSE_STATX_MODSIZE);
 	} else {
 		ret = __fuse_direct_read(io, iter, &pos);
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index c8d4c5f3af7e..f892f60d3d22 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1167,17 +1167,17 @@ int fuse_do_open(struct fuse_mount *fm, u64 nodeid, struct file *file,
 		 bool isdir);
 
 /*
- * fuse_direct_io() flags
+ * fuse_sync_direct_io() flags
  */
 
 /** If set, it is WRITE; otherwise - READ */
 #define FUSE_DIO_WRITE (1 << 0)
 
-/** CUSE pass fuse_direct_io() a file which f_mapping->host is not from FUSE */
+/** CUSE pass fuse_sync_direct_io() a file which f_mapping->host is not from FUSE */
 #define FUSE_DIO_CUSE  (1 << 1)
 
-ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter,
-		       loff_t *ppos, int flags);
+ssize_t fuse_sync_direct_io(struct fuse_io_priv *io, struct iov_iter *iter,
+			    loff_t *ppos, int flags);
 long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
 		   unsigned int flags);
 long fuse_ioctl_common(struct file *file, unsigned int cmd,