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Commit a343832f authored by Xiao Guangrong's avatar Xiao Guangrong Committed by Chris Mason
Browse files

btrfs: using btrfs_stack_device_id() get devid 



We can use btrfs_stack_device_id() to get dev_item->devid

Signed-off-by: default avatarXiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent 91748467

fs/btrfs/volumes.c

+3 −3
Original line number Diff line number Diff line
@@ -599,7 +599,7 @@ static int __btrfs_open_devices(struct btrfs_fs_devices *fs_devices, 
			goto error_close;



		disk_super = (struct btrfs_super_block *)bh->b_data;

		devid = le64_to_cpu(disk_super->dev_item.devid);

		devid = btrfs_stack_device_id(&disk_super->dev_item);

		if (devid != device->devid)

			goto error_brelse;
@@ -701,7 +701,7 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder, 
		goto error_close;

	}

	disk_super = (struct btrfs_super_block *)bh->b_data;

	devid = le64_to_cpu(disk_super->dev_item.devid);

	devid = btrfs_stack_device_id(&disk_super->dev_item);

	transid = btrfs_super_generation(disk_super);

	if (disk_super->label[0])

		printk(KERN_INFO "device label %s ", disk_super->label);
@@ -1194,7 +1194,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path) 
			goto error_close;

		}

		disk_super = (struct btrfs_super_block *)bh->b_data;

		devid = le64_to_cpu(disk_super->dev_item.devid);

		devid = btrfs_stack_device_id(&disk_super->dev_item);

		dev_uuid = disk_super->dev_item.uuid;

		device = btrfs_find_device(root, devid, dev_uuid,

					   disk_super->fsid);