• Yan Zheng's avatar
    Btrfs: superblock duplication · a512bbf8
    Yan Zheng authored
    This patch implements superblock duplication. Superblocks
    are stored at offset 16K, 64M and 256G on every devices.
    Spaces used by superblocks are preserved by the allocator,
    which uses a reverse mapping function to find the logical
    addresses that correspond to superblocks. Thank you,
    Signed-off-by: default avatarYan Zheng <zheng.yan@oracle.com>
    a512bbf8
disk-io.h 4.27 KB