diff options
Diffstat (limited to 'fs/btrfs/qgroup.h')
| -rw-r--r-- | fs/btrfs/qgroup.h | 61 |
1 files changed, 19 insertions, 42 deletions
diff --git a/fs/btrfs/qgroup.h b/fs/btrfs/qgroup.h index c5242aa9a4b2..6387dcfa354c 100644 --- a/fs/btrfs/qgroup.h +++ b/fs/btrfs/qgroup.h @@ -19,43 +19,18 @@ #ifndef __BTRFS_QGROUP__ #define __BTRFS_QGROUP__ +#include "ulist.h" +#include "delayed-ref.h" + /* - * A description of the operations, all of these operations only happen when we - * are adding the 1st reference for that subvolume in the case of adding space - * or on the last reference delete in the case of subtraction. The only - * exception is the last one, which is added for confusion. - * - * BTRFS_QGROUP_OPER_ADD_EXCL: adding bytes where this subvolume is the only - * one pointing at the bytes we are adding. This is called on the first - * allocation. - * - * BTRFS_QGROUP_OPER_ADD_SHARED: adding bytes where this bytenr is going to be - * shared between subvols. This is called on the creation of a ref that already - * has refs from a different subvolume, so basically reflink. - * - * BTRFS_QGROUP_OPER_SUB_EXCL: removing bytes where this subvolume is the only - * one referencing the range. - * - * BTRFS_QGROUP_OPER_SUB_SHARED: removing bytes where this subvolume shares with - * refs with other subvolumes. + * Record a dirty extent, and info qgroup to update quota on it + * TODO: Use kmem cache to alloc it. */ -enum btrfs_qgroup_operation_type { - BTRFS_QGROUP_OPER_ADD_EXCL, - BTRFS_QGROUP_OPER_ADD_SHARED, - BTRFS_QGROUP_OPER_SUB_EXCL, - BTRFS_QGROUP_OPER_SUB_SHARED, - BTRFS_QGROUP_OPER_SUB_SUBTREE, -}; - -struct btrfs_qgroup_operation { - u64 ref_root; +struct btrfs_qgroup_extent_record { + struct rb_node node; u64 bytenr; u64 num_bytes; - u64 seq; - enum btrfs_qgroup_operation_type type; - struct seq_list elem; - struct rb_node n; - struct list_head list; + struct ulist *old_roots; }; int btrfs_quota_enable(struct btrfs_trans_handle *trans, @@ -79,16 +54,18 @@ int btrfs_limit_qgroup(struct btrfs_trans_handle *trans, int btrfs_read_qgroup_config(struct btrfs_fs_info *fs_info); void btrfs_free_qgroup_config(struct btrfs_fs_info *fs_info); struct btrfs_delayed_extent_op; -int btrfs_qgroup_record_ref(struct btrfs_trans_handle *trans, - struct btrfs_fs_info *fs_info, u64 ref_root, +int btrfs_qgroup_prepare_account_extents(struct btrfs_trans_handle *trans, + struct btrfs_fs_info *fs_info); +struct btrfs_qgroup_extent_record +*btrfs_qgroup_insert_dirty_extent(struct btrfs_delayed_ref_root *delayed_refs, + struct btrfs_qgroup_extent_record *record); +int +btrfs_qgroup_account_extent(struct btrfs_trans_handle *trans, + struct btrfs_fs_info *fs_info, u64 bytenr, u64 num_bytes, - enum btrfs_qgroup_operation_type type, - int mod_seq); -int btrfs_delayed_qgroup_accounting(struct btrfs_trans_handle *trans, - struct btrfs_fs_info *fs_info); -void btrfs_remove_qgroup_operation(struct btrfs_trans_handle *trans, - struct btrfs_fs_info *fs_info, - struct btrfs_qgroup_operation *oper); + struct ulist *old_roots, struct ulist *new_roots); +int btrfs_qgroup_account_extents(struct btrfs_trans_handle *trans, + struct btrfs_fs_info *fs_info); int btrfs_run_qgroups(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info); int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans, |