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H A Dtransaction.cdiff 0ed4792af0e8346cb670b4bc540df7594f4b2020 Thu Apr 16 03:55:08 CDT 2015 Qu Wenruo <quwenruo@cn.fujitsu.com> btrfs: qgroup: Switch to new extent-oriented qgroup mechanism.

Switch from old ref_node based qgroup to extent based qgroup mechanism
for normal operations.

The new mechanism should hugely reduce the overhead of btrfs quota
system, and further more, the codes and logic should be more clean and
easier to maintain.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
H A Dextent-tree.cdiff 0ed4792af0e8346cb670b4bc540df7594f4b2020 Thu Apr 16 03:55:08 CDT 2015 Qu Wenruo <quwenruo@cn.fujitsu.com> btrfs: qgroup: Switch to new extent-oriented qgroup mechanism.

Switch from old ref_node based qgroup to extent based qgroup mechanism
for normal operations.

The new mechanism should hugely reduce the overhead of btrfs quota
system, and further more, the codes and logic should be more clean and
easier to maintain.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>