From 9086db86e0b09c39abead4d747119695553e3978 Mon Sep 17 00:00:00 2001 From: Qu Wenruo Date: Mon, 20 Apr 2015 09:53:50 +0800 Subject: btrfs: qgroup: Add the ability to skip given qgroup for old/new_roots. This is used by later qgroup fix patches for snapshot. As current snapshot accounting is done by btrfs_qgroup_inherit(), but new extent oriented quota mechanism will account extent from btrfs_copy_root() and other snapshot things, causing wrong result. So add this ability to handle snapshot accounting. Signed-off-by: Qu Wenruo Signed-off-by: Chris Mason --- fs/btrfs/transaction.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'fs/btrfs/transaction.h') diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h index 036fa83d6ccb..eb09c2067fa8 100644 --- a/fs/btrfs/transaction.h +++ b/fs/btrfs/transaction.h @@ -154,6 +154,29 @@ static inline void btrfs_set_inode_last_trans(struct btrfs_trans_handle *trans, spin_unlock(&BTRFS_I(inode)->lock); } +/* + * Make qgroup codes to skip given qgroupid, means the old/new_roots for + * qgroup won't contain the qgroupid in it. + */ +static inline void btrfs_set_skip_qgroup(struct btrfs_trans_handle *trans, + u64 qgroupid) +{ + struct btrfs_delayed_ref_root *delayed_refs; + + delayed_refs = &trans->transaction->delayed_refs; + WARN_ON(delayed_refs->qgroup_to_skip); + delayed_refs->qgroup_to_skip = qgroupid; +} + +static inline void btrfs_clear_skip_qgroup(struct btrfs_trans_handle *trans) +{ + struct btrfs_delayed_ref_root *delayed_refs; + + delayed_refs = &trans->transaction->delayed_refs; + WARN_ON(!delayed_refs->qgroup_to_skip); + delayed_refs->qgroup_to_skip = 0; +} + int btrfs_end_transaction(struct btrfs_trans_handle *trans, struct btrfs_root *root); struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root, -- cgit