Yan Zheng a512bbf855 Btrfs: superblock duplication ...

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: Yan Zheng <zheng.yan@oracle.com>

2008-12-08 16:46:26 -05:00

4.3 KiB

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