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Commit d51908ce authored by Anand Jain's avatar Anand Jain Committed by Chris Mason
Browse files

btrfs: preparatory to make btrfs_rm_dev_replace_srcdev() seed aware 



There is no logical change in this patch, just a preparatory patch,
so that changes can be easily reasoned.

Signed-off-by: default avatarAnand Jain <anand.jain@oracle.com>
Signed-off-by: default avatarChris Mason <clm@fb.com>
parent 56094eec

fs/btrfs/volumes.c

+9 −5
Original line number Diff line number Diff line
@@ -1815,19 +1815,23 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path) 
void btrfs_rm_dev_replace_srcdev(struct btrfs_fs_info *fs_info,

				 struct btrfs_device *srcdev)

{

	struct btrfs_fs_devices *fs_devices;



	WARN_ON(!mutex_is_locked(&fs_info->fs_devices->device_list_mutex));



	fs_devices = fs_info->fs_devices;



	list_del_rcu(&srcdev->dev_list);

	list_del_rcu(&srcdev->dev_alloc_list);

	fs_info->fs_devices->num_devices--;

	fs_devices->num_devices--;

	if (srcdev->missing) {

		fs_info->fs_devices->missing_devices--;

		fs_info->fs_devices->rw_devices++;

		fs_devices->missing_devices--;

		fs_devices->rw_devices++;

	}

	if (srcdev->can_discard)

		fs_info->fs_devices->num_can_discard--;

		fs_devices->num_can_discard--;

	if (srcdev->bdev) {

		fs_info->fs_devices->open_devices--;

		fs_devices->open_devices--;



		/*

		 * zero out the old super if it is not writable