From: Yan Zheng Date: Mon, 8 Dec 2008 21:46:26 +0000 (-0500) Subject: Btrfs: superblock duplication X-Git-Tag: v2.6.29-rc1~27^2~9^2~31 X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a512bbf855ff0af474257475f2e6da7acd854f52;p=pandora-kernel.git 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 --- Reading git-diff-tree failed