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Btrfs: Add root tree pointer transaction ids

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This patch adds transaction IDs to root tree pointers.
Transaction IDs in tree pointers are compared with the
generation numbers in block headers when reading root
blocks of trees. This can detect some types of IO errors.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
This commit is contained in:
Yan Zheng 2008-10-29 14:49:05 -04:00 • committed by Chris Mason
commit 84234f3a1f
6 changed files with 39 additions and 7 deletions
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