Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull second vfs update from Al Viro:
 "Now that net-next went in...  Here's the next big chunk - killing
  ->aio_read() and ->aio_write().

  There'll be one more pile today (direct_IO changes and
  generic_write_checks() cleanups/fixes), but I'd prefer to keep that
  one separate"

* 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits)
  ->aio_read and ->aio_write removed
  pcm: another weird API abuse
  infinibad: weird APIs switched to ->write_iter()
  kill do_sync_read/do_sync_write
  fuse: use iov_iter_get_pages() for non-splice path
  fuse: switch to ->read_iter/->write_iter
  switch drivers/char/mem.c to ->read_iter/->write_iter
  make new_sync_{read,write}() static
  coredump: accept any write method
  switch /dev/loop to vfs_iter_write()
  serial2002: switch to __vfs_read/__vfs_write
  ashmem: use __vfs_read()
  export __vfs_read()
  autofs: switch to __vfs_write()
  new helper: __vfs_write()
  switch hugetlbfs to ->read_iter()
  coda: switch to ->read_iter/->write_iter
  ncpfs: switch to ->read_iter/->write_iter
  net/9p: remove (now-)unused helpers
  p9_client_attach(): set fid->uid correctly
  ...

1 files changed, 8 insertions, 17 deletions

diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
index b3fa05032234..e5bbf748b698 100644
--- a/fs/fuse/cuse.c
+++ b/fs/fuse/cuse.c
@@ -88,32 +88,23 @@ static struct list_head *cuse_conntbl_head(dev_t devt)
  * FUSE file.
  */
 
-static ssize_t cuse_read(struct file *file, char __user *buf, size_t count,
-			 loff_t *ppos)
+static ssize_t cuse_read_iter(struct kiocb *kiocb, struct iov_iter *to)
 {
+	struct fuse_io_priv io = { .async = 0, .file = kiocb->ki_filp };
 	loff_t pos = 0;
-	struct iovec iov = { .iov_base = buf, .iov_len = count };
-	struct fuse_io_priv io = { .async = 0, .file = file };
-	struct iov_iter ii;
-	iov_iter_init(&ii, READ, &iov, 1, count);
 
-	return fuse_direct_io(&io, &ii, &pos, FUSE_DIO_CUSE);
+	return fuse_direct_io(&io, to, &pos, FUSE_DIO_CUSE);
 }
 
-static ssize_t cuse_write(struct file *file, const char __user *buf,
-			  size_t count, loff_t *ppos)
+static ssize_t cuse_write_iter(struct kiocb *kiocb, struct iov_iter *from)
 {
+	struct fuse_io_priv io = { .async = 0, .file = kiocb->ki_filp };
 	loff_t pos = 0;
-	struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = count };
-	struct fuse_io_priv io = { .async = 0, .file = file };
-	struct iov_iter ii;
-	iov_iter_init(&ii, WRITE, &iov, 1, count);
-
 	/*
 	 * No locking or generic_write_checks(), the server is
 	 * responsible for locking and sanity checks.
 	 */
-	return fuse_direct_io(&io, &ii, &pos,
+	return fuse_direct_io(&io, from, &pos,
 			      FUSE_DIO_WRITE | FUSE_DIO_CUSE);
 }
 
@@ -186,8 +177,8 @@ static long cuse_file_compat_ioctl(struct file *file, unsigned int cmd,
 
 static const struct file_operations cuse_frontend_fops = {
 	.owner			= THIS_MODULE,
-	.read			= cuse_read,
-	.write			= cuse_write,
+	.read_iter		= cuse_read_iter,
+	.write_iter		= cuse_write_iter,
 	.open			= cuse_open,
 	.release		= cuse_release,
 	.unlocked_ioctl		= cuse_file_ioctl,