fs: simplify the blockdev_direct_IO prototype

Simple filesystems always pass inode->i_sb_bdev as the block device
argument, and never need a end_io handler.  Let's simply things for
them and for my grepping activity by dropping these arguments.  The
only thing not falling into that scheme is ext4, which passes and
end_io handler without needing special flags (yet), but given how
messy the direct I/O code there is use of __blockdev_direct_IO
in one instead of two out of three cases isn't going to make a large
difference anyway.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 13f113154a9f..666628b395f1 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -259,8 +259,8 @@ nilfs_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
                 return 0;
 
         /* Needs synchronization with the cleaner */
-        size = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
-                                  offset, nr_segs, nilfs_get_block, NULL);
+        size = blockdev_direct_IO(rw, iocb, inode, iov, offset, nr_segs,
+                                  nilfs_get_block);
 
         /*
          * In case of error extending write may have instantiated a few