On Mon, Sep 10, 2012 at 12:38:35AM -0600, Wang Sheng-Hui wrote:
> To check the duplicated super blocks, use BTRFS_SUPER_MIRROR_MAX
> as the loops limit.
>
> Signed-off-by: Wang Sheng-Hui <shh...@gmail.com>
> ---
> fs/btrfs/disk-io.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
> index 22e98e0..a431144 100644
> --- a/fs/btrfs/disk-io.c
> +++ b/fs/btrfs/disk-io.c
> @@ -2723,7 +2723,7 @@ struct buffer_head *btrfs_read_dev_super(struct
> block_device *bdev)
> * So, we need to add a special mount option to scan for
> * later supers, using BTRFS_SUPER_MIRROR_MAX instead
> */
> - for (i = 0; i < 1; i++) {
> + for (i = 0; i < BTRFS_SUPER_MIRROR_MAX; i++) {
> bytenr = btrfs_sb_offset(i);
> if (bytenr + 4096 >= i_size_read(bdev->bd_inode))
> break;
We don't want to do this, it should be left for -o recovery or some such mount
option. Thanks,
Josef
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