ocfs2: fix locking for res->tracking and dlm->tracking_list
[linux/fpc-iii.git] / fs / btrfs / qgroup.h
blob3d73e4c9c7df3e6afb65c67f3837635202163ee5
1 /*
2 * Copyright (C) 2014 Facebook. All rights reserved.
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.
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.
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.
19 #ifndef __BTRFS_QGROUP__
20 #define __BTRFS_QGROUP__
22 #include "ulist.h"
23 #include "delayed-ref.h"
26 * Record a dirty extent, and info qgroup to update quota on it
27 * TODO: Use kmem cache to alloc it.
29 struct btrfs_qgroup_extent_record {
30 struct rb_node node;
31 u64 bytenr;
32 u64 num_bytes;
33 struct ulist *old_roots;
37 * For qgroup event trace points only
39 #define QGROUP_RESERVE (1<<0)
40 #define QGROUP_RELEASE (1<<1)
41 #define QGROUP_FREE (1<<2)
43 int btrfs_quota_enable(struct btrfs_trans_handle *trans,
44 struct btrfs_fs_info *fs_info);
45 int btrfs_quota_disable(struct btrfs_trans_handle *trans,
46 struct btrfs_fs_info *fs_info);
47 int btrfs_qgroup_rescan(struct btrfs_fs_info *fs_info);
48 void btrfs_qgroup_rescan_resume(struct btrfs_fs_info *fs_info);
49 int btrfs_qgroup_wait_for_completion(struct btrfs_fs_info *fs_info,
50 bool interruptible);
51 int btrfs_add_qgroup_relation(struct btrfs_trans_handle *trans,
52 struct btrfs_fs_info *fs_info, u64 src, u64 dst);
53 int btrfs_del_qgroup_relation(struct btrfs_trans_handle *trans,
54 struct btrfs_fs_info *fs_info, u64 src, u64 dst);
55 int btrfs_create_qgroup(struct btrfs_trans_handle *trans,
56 struct btrfs_fs_info *fs_info, u64 qgroupid);
57 int btrfs_remove_qgroup(struct btrfs_trans_handle *trans,
58 struct btrfs_fs_info *fs_info, u64 qgroupid);
59 int btrfs_limit_qgroup(struct btrfs_trans_handle *trans,
60 struct btrfs_fs_info *fs_info, u64 qgroupid,
61 struct btrfs_qgroup_limit *limit);
62 int btrfs_read_qgroup_config(struct btrfs_fs_info *fs_info);
63 void btrfs_free_qgroup_config(struct btrfs_fs_info *fs_info);
64 struct btrfs_delayed_extent_op;
65 int btrfs_qgroup_prepare_account_extents(struct btrfs_trans_handle *trans,
66 struct btrfs_fs_info *fs_info);
67 struct btrfs_qgroup_extent_record
68 *btrfs_qgroup_insert_dirty_extent(struct btrfs_delayed_ref_root *delayed_refs,
69 struct btrfs_qgroup_extent_record *record);
70 int
71 btrfs_qgroup_account_extent(struct btrfs_trans_handle *trans,
72 struct btrfs_fs_info *fs_info,
73 u64 bytenr, u64 num_bytes,
74 struct ulist *old_roots, struct ulist *new_roots);
75 int btrfs_qgroup_account_extents(struct btrfs_trans_handle *trans,
76 struct btrfs_fs_info *fs_info);
77 int btrfs_run_qgroups(struct btrfs_trans_handle *trans,
78 struct btrfs_fs_info *fs_info);
79 int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans,
80 struct btrfs_fs_info *fs_info, u64 srcid, u64 objectid,
81 struct btrfs_qgroup_inherit *inherit);
82 void btrfs_qgroup_free_refroot(struct btrfs_fs_info *fs_info,
83 u64 ref_root, u64 num_bytes);
85 * TODO: Add proper trace point for it, as btrfs_qgroup_free() is
86 * called by everywhere, can't provide good trace for delayed ref case.
88 static inline void btrfs_qgroup_free_delayed_ref(struct btrfs_fs_info *fs_info,
89 u64 ref_root, u64 num_bytes)
91 btrfs_qgroup_free_refroot(fs_info, ref_root, num_bytes);
92 trace_btrfs_qgroup_free_delayed_ref(ref_root, num_bytes);
94 void assert_qgroups_uptodate(struct btrfs_trans_handle *trans);
96 #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
97 int btrfs_verify_qgroup_counts(struct btrfs_fs_info *fs_info, u64 qgroupid,
98 u64 rfer, u64 excl);
99 #endif
101 /* New io_tree based accurate qgroup reserve API */
102 int btrfs_qgroup_reserve_data(struct inode *inode, u64 start, u64 len);
103 int btrfs_qgroup_release_data(struct inode *inode, u64 start, u64 len);
104 int btrfs_qgroup_free_data(struct inode *inode, u64 start, u64 len);
106 int btrfs_qgroup_reserve_meta(struct btrfs_root *root, int num_bytes);
107 void btrfs_qgroup_free_meta_all(struct btrfs_root *root);
108 void btrfs_qgroup_free_meta(struct btrfs_root *root, int num_bytes);
109 void btrfs_qgroup_check_reserved_leak(struct inode *inode);
110 #endif /* __BTRFS_QGROUP__ */