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fcebe456 JB |
1 | /* |
2 | * Copyright (C) 2014 Facebook. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public | |
6 | * License v2 as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public | |
14 | * License along with this program; if not, write to the | |
15 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
16 | * Boston, MA 021110-1307, USA. | |
17 | */ | |
18 | ||
19 | #ifndef __BTRFS_QGROUP__ | |
20 | #define __BTRFS_QGROUP__ | |
21 | ||
3368d001 QW |
22 | #include "ulist.h" |
23 | #include "delayed-ref.h" | |
24 | ||
3368d001 QW |
25 | /* |
26 | * Record a dirty extent, and info qgroup to update quota on it | |
27 | * TODO: Use kmem cache to alloc it. | |
28 | */ | |
29 | struct btrfs_qgroup_extent_record { | |
30 | struct rb_node node; | |
31 | u64 bytenr; | |
32 | u64 num_bytes; | |
33 | struct ulist *old_roots; | |
34 | }; | |
35 | ||
fcebe456 JB |
36 | int btrfs_quota_enable(struct btrfs_trans_handle *trans, |
37 | struct btrfs_fs_info *fs_info); | |
38 | int btrfs_quota_disable(struct btrfs_trans_handle *trans, | |
39 | struct btrfs_fs_info *fs_info); | |
40 | int btrfs_qgroup_rescan(struct btrfs_fs_info *fs_info); | |
41 | void btrfs_qgroup_rescan_resume(struct btrfs_fs_info *fs_info); | |
42 | int btrfs_qgroup_wait_for_completion(struct btrfs_fs_info *fs_info); | |
43 | int btrfs_add_qgroup_relation(struct btrfs_trans_handle *trans, | |
44 | struct btrfs_fs_info *fs_info, u64 src, u64 dst); | |
45 | int btrfs_del_qgroup_relation(struct btrfs_trans_handle *trans, | |
46 | struct btrfs_fs_info *fs_info, u64 src, u64 dst); | |
47 | int btrfs_create_qgroup(struct btrfs_trans_handle *trans, | |
4087cf24 | 48 | struct btrfs_fs_info *fs_info, u64 qgroupid); |
fcebe456 JB |
49 | int btrfs_remove_qgroup(struct btrfs_trans_handle *trans, |
50 | struct btrfs_fs_info *fs_info, u64 qgroupid); | |
51 | int btrfs_limit_qgroup(struct btrfs_trans_handle *trans, | |
52 | struct btrfs_fs_info *fs_info, u64 qgroupid, | |
53 | struct btrfs_qgroup_limit *limit); | |
54 | int btrfs_read_qgroup_config(struct btrfs_fs_info *fs_info); | |
55 | void btrfs_free_qgroup_config(struct btrfs_fs_info *fs_info); | |
56 | struct btrfs_delayed_extent_op; | |
3b7d00f9 QW |
57 | int btrfs_qgroup_prepare_account_extents(struct btrfs_trans_handle *trans, |
58 | struct btrfs_fs_info *fs_info); | |
3368d001 QW |
59 | struct btrfs_qgroup_extent_record |
60 | *btrfs_qgroup_insert_dirty_extent(struct btrfs_delayed_ref_root *delayed_refs, | |
61 | struct btrfs_qgroup_extent_record *record); | |
442244c9 QW |
62 | int |
63 | btrfs_qgroup_account_extent(struct btrfs_trans_handle *trans, | |
64 | struct btrfs_fs_info *fs_info, | |
65 | u64 bytenr, u64 num_bytes, | |
66 | struct ulist *old_roots, struct ulist *new_roots); | |
550d7a2e QW |
67 | int btrfs_qgroup_account_extents(struct btrfs_trans_handle *trans, |
68 | struct btrfs_fs_info *fs_info); | |
fcebe456 JB |
69 | int btrfs_run_qgroups(struct btrfs_trans_handle *trans, |
70 | struct btrfs_fs_info *fs_info); | |
71 | int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans, | |
72 | struct btrfs_fs_info *fs_info, u64 srcid, u64 objectid, | |
73 | struct btrfs_qgroup_inherit *inherit); | |
74 | int btrfs_qgroup_reserve(struct btrfs_root *root, u64 num_bytes); | |
75 | void btrfs_qgroup_free(struct btrfs_root *root, u64 num_bytes); | |
76 | ||
77 | void assert_qgroups_uptodate(struct btrfs_trans_handle *trans); | |
78 | ||
79 | #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS | |
80 | int btrfs_verify_qgroup_counts(struct btrfs_fs_info *fs_info, u64 qgroupid, | |
81 | u64 rfer, u64 excl); | |
82 | #endif | |
83 | ||
84 | #endif /* __BTRFS_QGROUP__ */ |