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| author | Qu Wenruo <quwenruo@cn.fujitsu.com> | 2015-04-20 09:53:50 +0800 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2015-06-10 09:26:23 -0700 |
| commit | 9086db86e0b09c39abead4d747119695553e3978 (patch) | |
| tree | 26cba099d0d7c8209e036024f70b32d3bd2615e0 /fs/btrfs/transaction.h | |
| parent | d4b804045924d7f8d2ea988be22c4b9e6492ec11 (diff) | |
| download | lwn-9086db86e0b09c39abead4d747119695553e3978.tar.gz lwn-9086db86e0b09c39abead4d747119695553e3978.zip | |
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 <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/transaction.h')
| -rw-r--r-- | fs/btrfs/transaction.h | 23 |
1 files changed, 23 insertions, 0 deletions
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, |