Btrfs: add btrfs_compare_trees function

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This function is used to find the differences between
two trees. The tree compare skips whole subtrees if it
detects shared tree blocks and thus is pretty fast.

Signed-off-by: Alexander Block <ablock84@googlemail.com>
Reviewed-by: David Sterba <dave@jikos.cz>
Reviewed-by: Arne Jansen <sensille@gmx.net>
Reviewed-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Reviewed-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>

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This commit is contained in:

Alexander Block 2012-06-05 21:07:48 +02:00

parent 8ea05e3a42

commit 7069830a9e

2 changed files with 440 additions and 0 deletions

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425

fs/btrfs/ctree.c

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15

fs/btrfs/ctree.h

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