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0b61f8a4 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | /* |
7b718769 NS |
3 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. | |
1da177e4 LT |
5 | */ |
6 | #ifndef __XFS_QUOTA_H__ | |
7 | #define __XFS_QUOTA_H__ | |
8 | ||
76456fc2 | 9 | #include "xfs_quota_defs.h" |
fcafb71b | 10 | |
1da177e4 | 11 | /* |
76456fc2 | 12 | * Kernel only quota definitions and functions |
1da177e4 | 13 | */ |
c8ad20ff | 14 | |
76456fc2 | 15 | struct xfs_trans; |
6f5de180 | 16 | struct xfs_buf; |
1da177e4 | 17 | |
1da177e4 LT |
18 | /* |
19 | * This check is done typically without holding the inode lock; | |
c41564b5 | 20 | * that may seem racy, but it is harmless in the context that it is used. |
1da177e4 LT |
21 | * The inode cannot go inactive as long a reference is kept, and |
22 | * therefore if dquot(s) were attached, they'll stay consistent. | |
23 | * If, for example, the ownership of the inode changes while | |
24 | * we didn't have the inode locked, the appropriate dquot(s) will be | |
25 | * attached atomically. | |
26 | */ | |
92f8ff73 CS |
27 | #define XFS_NOT_DQATTACHED(mp, ip) \ |
28 | ((XFS_IS_UQUOTA_ON(mp) && (ip)->i_udquot == NULL) || \ | |
29 | (XFS_IS_GQUOTA_ON(mp) && (ip)->i_gdquot == NULL) || \ | |
30 | (XFS_IS_PQUOTA_ON(mp) && (ip)->i_pdquot == NULL)) | |
1da177e4 | 31 | |
c8ad20ff NS |
32 | #define XFS_QM_NEED_QUOTACHECK(mp) \ |
33 | ((XFS_IS_UQUOTA_ON(mp) && \ | |
34 | (mp->m_sb.sb_qflags & XFS_UQUOTA_CHKD) == 0) || \ | |
35 | (XFS_IS_GQUOTA_ON(mp) && \ | |
83e782e1 | 36 | (mp->m_sb.sb_qflags & XFS_GQUOTA_CHKD) == 0) || \ |
c8ad20ff | 37 | (XFS_IS_PQUOTA_ON(mp) && \ |
83e782e1 | 38 | (mp->m_sb.sb_qflags & XFS_PQUOTA_CHKD) == 0)) |
1da177e4 | 39 | |
7e85bc6c DW |
40 | static inline uint |
41 | xfs_quota_chkd_flag( | |
1a7ed271 | 42 | xfs_dqtype_t type) |
7e85bc6c | 43 | { |
1a7ed271 | 44 | switch (type) { |
8cd4901d | 45 | case XFS_DQTYPE_USER: |
7e85bc6c | 46 | return XFS_UQUOTA_CHKD; |
8cd4901d | 47 | case XFS_DQTYPE_GROUP: |
7e85bc6c | 48 | return XFS_GQUOTA_CHKD; |
8cd4901d | 49 | case XFS_DQTYPE_PROJ: |
7e85bc6c DW |
50 | return XFS_PQUOTA_CHKD; |
51 | default: | |
52 | return 0; | |
53 | } | |
54 | } | |
55 | ||
1da177e4 LT |
56 | /* |
57 | * The structure kept inside the xfs_trans_t keep track of dquot changes | |
58 | * within a transaction and apply them later. | |
59 | */ | |
078f4a7d | 60 | struct xfs_dqtrx { |
1da177e4 | 61 | struct xfs_dquot *qt_dquot; /* the dquot this refers to */ |
903b1fc2 DW |
62 | |
63 | uint64_t qt_blk_res; /* blks reserved on a dquot */ | |
64 | int64_t qt_bcount_delta; /* dquot blk count changes */ | |
65 | int64_t qt_delbcnt_delta; /* delayed dquot blk count changes */ | |
66 | ||
67 | uint64_t qt_rtblk_res; /* # blks reserved on a dquot */ | |
68 | uint64_t qt_rtblk_res_used;/* # blks used from reservation */ | |
69 | int64_t qt_rtbcount_delta;/* dquot realtime blk changes */ | |
70 | int64_t qt_delrtb_delta; /* delayed RT blk count changes */ | |
71 | ||
72 | uint64_t qt_ino_res; /* inode reserved on a dquot */ | |
73 | uint64_t qt_ino_res_used; /* inodes used from the reservation */ | |
74 | int64_t qt_icount_delta; /* dquot inode count changes */ | |
078f4a7d | 75 | }; |
1da177e4 | 76 | |
7d095257 CH |
77 | #ifdef CONFIG_XFS_QUOTA |
78 | extern void xfs_trans_dup_dqinfo(struct xfs_trans *, struct xfs_trans *); | |
79 | extern void xfs_trans_free_dqinfo(struct xfs_trans *); | |
80 | extern void xfs_trans_mod_dquot_byino(struct xfs_trans *, struct xfs_inode *, | |
903b1fc2 | 81 | uint, int64_t); |
7d095257 CH |
82 | extern void xfs_trans_apply_dquot_deltas(struct xfs_trans *); |
83 | extern void xfs_trans_unreserve_and_mod_dquots(struct xfs_trans *); | |
02b7ee4e DW |
84 | int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp, struct xfs_inode *ip, |
85 | int64_t dblocks, int64_t rblocks, bool force); | |
7d095257 CH |
86 | extern int xfs_trans_reserve_quota_bydquots(struct xfs_trans *, |
87 | struct xfs_mount *, struct xfs_dquot *, | |
903b1fc2 | 88 | struct xfs_dquot *, struct xfs_dquot *, int64_t, long, uint); |
ad4a7473 DW |
89 | int xfs_trans_reserve_quota_icreate(struct xfs_trans *tp, |
90 | struct xfs_dquot *udqp, struct xfs_dquot *gdqp, | |
91 | struct xfs_dquot *pdqp, int64_t dblocks); | |
7d095257 | 92 | |
54295159 | 93 | extern int xfs_qm_vop_dqalloc(struct xfs_inode *, kuid_t, kgid_t, |
7aab1b28 DE |
94 | prid_t, uint, struct xfs_dquot **, struct xfs_dquot **, |
95 | struct xfs_dquot **); | |
7d095257 | 96 | extern void xfs_qm_vop_create_dqattach(struct xfs_trans *, struct xfs_inode *, |
92f8ff73 | 97 | struct xfs_dquot *, struct xfs_dquot *, struct xfs_dquot *); |
7d095257 CH |
98 | extern int xfs_qm_vop_rename_dqattach(struct xfs_inode **); |
99 | extern struct xfs_dquot *xfs_qm_vop_chown(struct xfs_trans *, | |
100 | struct xfs_inode *, struct xfs_dquot **, struct xfs_dquot *); | |
c14cfcca | 101 | extern int xfs_qm_dqattach(struct xfs_inode *); |
4882c19d | 102 | extern int xfs_qm_dqattach_locked(struct xfs_inode *ip, bool doalloc); |
7d095257 CH |
103 | extern void xfs_qm_dqdetach(struct xfs_inode *); |
104 | extern void xfs_qm_dqrele(struct xfs_dquot *); | |
105 | extern void xfs_qm_statvfs(struct xfs_inode *, struct kstatfs *); | |
7d095257 CH |
106 | extern int xfs_qm_newmount(struct xfs_mount *, uint *, uint *); |
107 | extern void xfs_qm_mount_quotas(struct xfs_mount *); | |
108 | extern void xfs_qm_unmount(struct xfs_mount *); | |
109 | extern void xfs_qm_unmount_quotas(struct xfs_mount *); | |
110 | ||
85546500 DW |
111 | static inline int |
112 | xfs_quota_reserve_blkres(struct xfs_inode *ip, int64_t blocks) | |
113 | { | |
02b7ee4e | 114 | return xfs_trans_reserve_quota_nblks(NULL, ip, blocks, 0, false); |
85546500 | 115 | } |
108523b8 | 116 | bool xfs_inode_near_dquot_enforcement(struct xfs_inode *ip, xfs_dqtype_t type); |
7d095257 | 117 | #else |
493b87e5 | 118 | static inline int |
54295159 | 119 | xfs_qm_vop_dqalloc(struct xfs_inode *ip, kuid_t kuid, kgid_t kgid, |
7aab1b28 DE |
120 | prid_t prid, uint flags, struct xfs_dquot **udqp, |
121 | struct xfs_dquot **gdqp, struct xfs_dquot **pdqp) | |
493b87e5 CH |
122 | { |
123 | *udqp = NULL; | |
124 | *gdqp = NULL; | |
92f8ff73 | 125 | *pdqp = NULL; |
493b87e5 CH |
126 | return 0; |
127 | } | |
7d095257 CH |
128 | #define xfs_trans_dup_dqinfo(tp, tp2) |
129 | #define xfs_trans_free_dqinfo(tp) | |
7ac6eb46 | 130 | #define xfs_trans_mod_dquot_byino(tp, ip, fields, delta) do { } while (0) |
7d095257 CH |
131 | #define xfs_trans_apply_dquot_deltas(tp) |
132 | #define xfs_trans_unreserve_and_mod_dquots(tp) | |
5d2bf8a5 | 133 | static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp, |
02b7ee4e DW |
134 | struct xfs_inode *ip, int64_t dblocks, int64_t rblocks, |
135 | bool force) | |
5d2bf8a5 CH |
136 | { |
137 | return 0; | |
138 | } | |
139 | static inline int xfs_trans_reserve_quota_bydquots(struct xfs_trans *tp, | |
140 | struct xfs_mount *mp, struct xfs_dquot *udqp, | |
92f8ff73 | 141 | struct xfs_dquot *gdqp, struct xfs_dquot *pdqp, |
903b1fc2 | 142 | int64_t nblks, long nions, uint flags) |
5d2bf8a5 CH |
143 | { |
144 | return 0; | |
145 | } | |
85546500 DW |
146 | |
147 | static inline int | |
148 | xfs_quota_reserve_blkres(struct xfs_inode *ip, int64_t blocks) | |
149 | { | |
150 | return 0; | |
151 | } | |
152 | ||
ad4a7473 DW |
153 | static inline int |
154 | xfs_trans_reserve_quota_icreate(struct xfs_trans *tp, struct xfs_dquot *udqp, | |
155 | struct xfs_dquot *gdqp, struct xfs_dquot *pdqp, int64_t dblocks) | |
156 | { | |
157 | return 0; | |
158 | } | |
159 | ||
92f8ff73 | 160 | #define xfs_qm_vop_create_dqattach(tp, ip, u, g, p) |
7d095257 CH |
161 | #define xfs_qm_vop_rename_dqattach(it) (0) |
162 | #define xfs_qm_vop_chown(tp, ip, old, new) (NULL) | |
c14cfcca | 163 | #define xfs_qm_dqattach(ip) (0) |
7d095257 CH |
164 | #define xfs_qm_dqattach_locked(ip, fl) (0) |
165 | #define xfs_qm_dqdetach(ip) | |
7ac6eb46 DW |
166 | #define xfs_qm_dqrele(d) do { (d) = (d); } while(0) |
167 | #define xfs_qm_statvfs(ip, s) do { } while(0) | |
7d095257 CH |
168 | #define xfs_qm_newmount(mp, a, b) (0) |
169 | #define xfs_qm_mount_quotas(mp) | |
170 | #define xfs_qm_unmount(mp) | |
5d2bf8a5 | 171 | #define xfs_qm_unmount_quotas(mp) |
108523b8 | 172 | #define xfs_inode_near_dquot_enforcement(ip, type) (false) |
7d095257 CH |
173 | #endif /* CONFIG_XFS_QUOTA */ |
174 | ||
85546500 DW |
175 | static inline int |
176 | xfs_quota_unreserve_blkres(struct xfs_inode *ip, int64_t blocks) | |
177 | { | |
178 | return xfs_quota_reserve_blkres(ip, -blocks); | |
179 | } | |
180 | ||
4cd4a034 | 181 | extern int xfs_mount_reset_sbqflags(struct xfs_mount *); |
1da177e4 | 182 | |
1da177e4 | 183 | #endif /* __XFS_QUOTA_H__ */ |