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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 <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Christoph Hellwig 2016-04-07 08:51:58 -07:00 • committed by Al Viro
commit c8b8e32d70
37 changed files with 99 additions and 112 deletions
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7
fs/direct-io.c
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@ -1113,7 +1113,7 @@ static inline int drop_refcount(struct dio *dio)
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 @@ do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
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 @@ out:
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 @@ ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
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);
}