tree 9b8316a84e2cb5fa5ed4d16cdbfecd965ed7870c
parent 86b9f2eca5e0984145e3c7698a7cd6dd65c2a93f
author Yan, Zheng <zheng.yan@oracle.com> 1259227871 +0000
committer Chris Mason <chris.mason@oracle.com> 1261071216 -0500

Btrfs: don't add extent 0 to the free space cache v2

If block group 0 is completely free, btrfs_read_block_groups will
add extent [0, BTRFS_SUPER_INFO_OFFSET) to the free space cache.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>