direct-io: eliminate the offset argument to ->direct_IO
Including blkdev_direct_IO and dax_do_io. It has to be ki_pos to actually
work, so eliminate the superflous argument.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 4720377..8949d3e 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -1113,7 +1113,7 @@
static inline ssize_t
do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
struct block_device *bdev, struct iov_iter *iter,
- loff_t offset, get_block_t get_block, dio_iodone_t end_io,
+ get_block_t get_block, dio_iodone_t end_io,
dio_submit_t submit_io, int flags)
{
unsigned i_blkbits = ACCESS_ONCE(inode->i_blkbits);
@@ -1121,6 +1121,7 @@
unsigned blocksize_mask = (1 << blkbits) - 1;
ssize_t retval = -EINVAL;
size_t count = iov_iter_count(iter);
+ loff_t offset = iocb->ki_pos;
loff_t end = offset + count;
struct dio *dio;
struct dio_submit sdio = { 0, };
@@ -1328,7 +1329,7 @@
ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
struct block_device *bdev, struct iov_iter *iter,
- loff_t offset, get_block_t get_block,
+ get_block_t get_block,
dio_iodone_t end_io, dio_submit_t submit_io,
int flags)
{
@@ -1344,7 +1345,7 @@
prefetch(bdev->bd_queue);
prefetch((char *)bdev->bd_queue + SMP_CACHE_BYTES);
- return do_blockdev_direct_IO(iocb, inode, bdev, iter, offset, get_block,
+ return do_blockdev_direct_IO(iocb, inode, bdev, iter, get_block,
end_io, submit_io, flags);
}