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block_dev: remove DAX leftovers 

DAX support for block devices was removed in commits 03cdad
("block: disable block device DAX by default") and 99a01cd
("block: remove BLK_DEV_DAX config option"), but we still kept a call to
dax_do_io and some uneeded i_flags manipulations introduced in commit
bbab37 ("block: Add support for DAX reads/writes to block devices").

Remove those leftovers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
hifive-unleashed-5.1
Christoph Hellwig 2016-09-14 11:56:13 +02:00 committed by Jens Axboe
parent d21ea4bc0f
commit 2237570168
1 changed files with 1 additions and 10 deletions
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11
fs/block_dev.c
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@ -180,9 +180,6 @@ blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
struct file *file = iocb->ki_filp;
struct inode *inode = bdev_file_inode(file);
if (IS_DAX(inode))
return dax_do_io(iocb, inode, iter, blkdev_get_block,
NULL, DIO_SKIP_DIO_COUNT);
return __blockdev_direct_IO(iocb, inode, I_BDEV(inode), iter,
blkdev_get_block, NULL, NULL,
DIO_SKIP_DIO_COUNT);
@ -1275,7 +1272,6 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
bdev->bd_disk = disk;
bdev->bd_queue = disk->queue;
bdev->bd_contains = bdev;
bdev->bd_inode->i_flags = 0;
if (!partno) {
ret = -ENXIO;
@ -1303,11 +1299,8 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
}
}
if (!ret) {
if (!ret)
bd_set_size(bdev,(loff_t)get_capacity(disk)<<9);
if (!bdev_dax_capable(bdev))
bdev->bd_inode->i_flags &= ~S_DAX;
}
/*
* If the device is invalidated, rescan partition
@ -1342,8 +1335,6 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
goto out_clear;
}
bd_set_size(bdev, (loff_t)bdev->bd_part->nr_sects << 9);
if (!bdev_dax_capable(bdev))
bdev->bd_inode->i_flags &= ~S_DAX;
}
} else {
if (bdev->bd_contains == bdev) {