fs/block_dev.c: skip rw_page if bdev has integrity

[karo-tx-linux.git] / fs / block_dev.c

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 897ee0503932fbbf7adc88b0fd27591576696160..054ef1bbb821b403f47ab8bd02c7960dac73f6ae 100644 (file)
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -152,7 +152,8 @@ blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, loff_t offset)
        struct inode *inode = file->f_mapping->host;
 
        return __blockdev_direct_IO(iocb, inode, I_BDEV(inode), iter, offset,
-                                   blkdev_get_block, NULL, NULL, 0);
+                                   blkdev_get_block, NULL, NULL,
+                                   DIO_SKIP_DIO_COUNT);
 }
 
 int __sync_blockdev(struct block_device *bdev, int wait)
@@ -375,7 +376,7 @@ int bdev_read_page(struct block_device *bdev, sector_t sector,
                        struct page *page)
 {
        const struct block_device_operations *ops = bdev->bd_disk->fops;
-       if (!ops->rw_page)
+       if (!ops->rw_page || bdev_get_integrity(bdev))
                return -EOPNOTSUPP;
        return ops->rw_page(bdev, sector + get_start_sect(bdev), page, READ);
 }
@@ -406,7 +407,7 @@ int bdev_write_page(struct block_device *bdev, sector_t sector,
        int result;
        int rw = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : WRITE;
        const struct block_device_operations *ops = bdev->bd_disk->fops;
-       if (!ops->rw_page)
+       if (!ops->rw_page || bdev_get_integrity(bdev))
                return -EOPNOTSUPP;
        set_page_writeback(page);
        result = ops->rw_page(bdev, sector + get_start_sect(bdev), page, rw);
@@ -1716,7 +1717,7 @@ struct block_device *lookup_bdev(const char *pathname)
        if (error)
                return ERR_PTR(error);
 
-       inode = path.dentry->d_inode;
+       inode = d_backing_inode(path.dentry);
        error = -ENOTBLK;
        if (!S_ISBLK(inode->i_mode))
                goto fail;