btrfs: qgroup: Add new qgroup calculation function

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btrfs_qgroup_account_extents().

The new btrfs_qgroup_account_extents() function should be called in
btrfs_commit_transaction() and it will update all the qgroup according
to delayed_ref_root->dirty_extent_root.

The new function can handle both normal operation during
commit_transaction() or in rescan in a unified method with clearer
logic.

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

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Qu Wenruo 2015-04-16 15:37:33 +08:00 • committed by Chris Mason

parent 21633fc603

commit 550d7a2ed5

3 changed files with 118 additions and 0 deletions

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fs/btrfs/extent-tree.h

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fs/btrfs/qgroup.c

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fs/btrfs/qgroup.h

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