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direct-io: eliminate the offset argument to ->direct_IO

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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>
This commit is contained in:
Christoph Hellwig
2016-04-07 08:51:58 -07:00
committed by Al Viro
parent 13712713ca
commit c8b8e32d70
37 changed files with 99 additions and 112 deletions
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6
fs/fat/inode.c
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@@ -244,13 +244,13 @@ static int fat_write_end(struct file *file, struct address_space *mapping,
return err;
}
static ssize_t fat_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
loff_t offset)
static ssize_t fat_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
{
struct file *file = iocb->ki_filp;
struct address_space *mapping = file->f_mapping;
struct inode *inode = mapping->host;
size_t count = iov_iter_count(iter);
loff_t offset = iocb->ki_pos;
ssize_t ret;
if (iov_iter_rw(iter) == WRITE) {
@@ -272,7 +272,7 @@ static ssize_t fat_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
* FAT need to use the DIO_LOCKING for avoiding the race
* condition of fat_get_block() and ->truncate().
*/
ret = blockdev_direct_IO(iocb, inode, iter, offset, fat_get_block);
ret = blockdev_direct_IO(iocb, inode, iter, fat_get_block);
if (ret < 0 && iov_iter_rw(iter) == WRITE)
fat_write_failed(mapping, offset + count);