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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Nathan Scott7b718762005-11-02 14:58:39 +11002 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
Nathan Scott7b718762005-11-02 14:58:39 +11005 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * published by the Free Software Foundation.
8 *
Nathan Scott7b718762005-11-02 14:58:39 +11009 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 *
Nathan Scott7b718762005-11-02 14:58:39 +110014 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 */
18#ifndef __XFS_QUOTA_H__
19#define __XFS_QUOTA_H__
20
Christoph Hellwigfcafb712009-02-09 08:47:34 +010021struct xfs_trans;
22
Linus Torvalds1da177e2005-04-16 15:20:36 -070023/*
24 * The ondisk form of a dquot structure.
25 */
26#define XFS_DQUOT_MAGIC 0x4451 /* 'DQ' */
27#define XFS_DQUOT_VERSION (u_int8_t)0x01 /* latest version number */
28
29/*
30 * uid_t and gid_t are hard-coded to 32 bits in the inode.
31 * Hence, an 'id' in a dquot is 32 bits..
32 */
Nathan Scottc310ab62005-11-02 10:31:41 +110033typedef __uint32_t xfs_dqid_t;
Linus Torvalds1da177e2005-04-16 15:20:36 -070034
35/*
Nathan Scottc41564b2006-03-29 08:55:14 +100036 * Even though users may not have quota limits occupying all 64-bits,
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 * they may need 64-bit accounting. Hence, 64-bit quota-counters,
38 * and quota-limits. This is a waste in the common case, but hey ...
39 */
40typedef __uint64_t xfs_qcnt_t;
41typedef __uint16_t xfs_qwarncnt_t;
42
43/*
44 * This is the main portion of the on-disk representation of quota
45 * information for a user. This is the q_core of the xfs_dquot_t that
46 * is kept in kernel memory. We pad this with some more expansion room
47 * to construct the on disk structure.
48 */
49typedef struct xfs_disk_dquot {
Christoph Hellwig1149d962005-11-02 15:01:12 +110050 __be16 d_magic; /* dquot magic = XFS_DQUOT_MAGIC */
51 __u8 d_version; /* dquot version */
52 __u8 d_flags; /* XFS_DQ_USER/PROJ/GROUP */
53 __be32 d_id; /* user,project,group id */
54 __be64 d_blk_hardlimit;/* absolute limit on disk blks */
55 __be64 d_blk_softlimit;/* preferred limit on disk blks */
56 __be64 d_ino_hardlimit;/* maximum # allocated inodes */
57 __be64 d_ino_softlimit;/* preferred inode limit */
58 __be64 d_bcount; /* disk blocks owned by the user */
59 __be64 d_icount; /* inodes owned by the user */
60 __be32 d_itimer; /* zero if within inode limits if not,
Linus Torvalds1da177e2005-04-16 15:20:36 -070061 this is when we refuse service */
Christoph Hellwig1149d962005-11-02 15:01:12 +110062 __be32 d_btimer; /* similar to above; for disk blocks */
63 __be16 d_iwarns; /* warnings issued wrt num inodes */
64 __be16 d_bwarns; /* warnings issued wrt disk blocks */
65 __be32 d_pad0; /* 64 bit align */
66 __be64 d_rtb_hardlimit;/* absolute limit on realtime blks */
67 __be64 d_rtb_softlimit;/* preferred limit on RT disk blks */
68 __be64 d_rtbcount; /* realtime blocks owned */
69 __be32 d_rtbtimer; /* similar to above; for RT disk blocks */
70 __be16 d_rtbwarns; /* warnings issued wrt RT disk blocks */
71 __be16 d_pad;
Linus Torvalds1da177e2005-04-16 15:20:36 -070072} xfs_disk_dquot_t;
73
74/*
75 * This is what goes on disk. This is separated from the xfs_disk_dquot because
76 * carrying the unnecessary padding would be a waste of memory.
77 */
78typedef struct xfs_dqblk {
79 xfs_disk_dquot_t dd_diskdq; /* portion that lives incore as well */
Christoph Hellwig3fe58f32013-04-03 16:11:16 +110080 char dd_fill[4]; /* filling for posterity */
81
82 /*
83 * These two are only present on filesystems with the CRC bits set.
84 */
85 __be32 dd_crc; /* checksum */
86 __be64 dd_lsn; /* last modification in log */
87 uuid_t dd_uuid; /* location information */
Linus Torvalds1da177e2005-04-16 15:20:36 -070088} xfs_dqblk_t;
89
Dave Chinner6fcdc592013-06-03 15:28:46 +100090#define XFS_DQUOT_CRC_OFF offsetof(struct xfs_dqblk, dd_crc)
91
Linus Torvalds1da177e2005-04-16 15:20:36 -070092/*
93 * flags for q_flags field in the dquot.
94 */
95#define XFS_DQ_USER 0x0001 /* a user quota */
Nathan Scottc8ad20f2005-06-21 15:38:48 +100096#define XFS_DQ_PROJ 0x0002 /* project quota */
Linus Torvalds1da177e2005-04-16 15:20:36 -070097#define XFS_DQ_GROUP 0x0004 /* a group quota */
Christoph Hellwigdf6771b2008-12-03 12:20:30 +010098#define XFS_DQ_DIRTY 0x0008 /* dquot is dirty */
Christoph Hellwig92678552011-12-06 21:58:18 +000099#define XFS_DQ_FREEING 0x0010 /* dquot is beeing torn down */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000101#define XFS_DQ_ALLTYPES (XFS_DQ_USER|XFS_DQ_PROJ|XFS_DQ_GROUP)
102
Christoph Hellwig0b1b2132009-12-14 23:14:59 +0000103#define XFS_DQ_FLAGS \
104 { XFS_DQ_USER, "USER" }, \
105 { XFS_DQ_PROJ, "PROJ" }, \
106 { XFS_DQ_GROUP, "GROUP" }, \
Christoph Hellwig92678552011-12-06 21:58:18 +0000107 { XFS_DQ_DIRTY, "DIRTY" }, \
108 { XFS_DQ_FREEING, "FREEING" }
Christoph Hellwig0b1b2132009-12-14 23:14:59 +0000109
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110/*
Dave Chinnerb0a9dab2013-07-10 07:04:01 +1000111 * We have the possibility of all three quota types being active at once, and
112 * hence free space modification requires modification of all three current
113 * dquots in a single transaction. For this case we need to have a reservation
114 * of at least 3 dquots.
115 *
116 * However, a chmod operation can change both UID and GID in a single
117 * transaction, resulting in requiring {old, new} x {uid, gid} dquots to be
118 * modified. Hence for this case we need to reserve space for at least 4 dquots.
119 *
120 * And in the worst case, there's a rename operation that can be modifying up to
121 * 4 inodes with dquots attached to them. In reality, the only inodes that can
122 * have their dquots modified are the source and destination directory inodes
123 * due to directory name creation and removal. That can require space allocation
124 * and/or freeing on both directory inodes, and hence all three dquots on each
125 * inode can be modified. And if the directories are world writeable, all the
126 * dquots can be unique and so 6 dquots can be modified....
127 *
128 * And, of course, we also need to take into account the dquot log format item
129 * used to describe each dquot.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130 */
Dave Chinnerb0a9dab2013-07-10 07:04:01 +1000131#define XFS_DQUOT_LOGRES(mp) \
132 ((sizeof(struct xfs_dq_logformat) + sizeof(struct xfs_disk_dquot)) * 6)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133
134/*
135 * These are the structures used to lay out dquots and quotaoff
136 * records on the log. Quite similar to those of inodes.
137 */
138
139/*
140 * log format struct for dquots.
141 * The first two fields must be the type and size fitting into
142 * 32 bits : log_recovery code assumes that.
143 */
144typedef struct xfs_dq_logformat {
145 __uint16_t qlf_type; /* dquot log item type */
146 __uint16_t qlf_size; /* size of this item */
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000147 xfs_dqid_t qlf_id; /* usr/grp/proj id : 32 bits */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148 __int64_t qlf_blkno; /* blkno of dquot buffer */
149 __int32_t qlf_len; /* len of dquot buffer */
150 __uint32_t qlf_boffset; /* off of dquot in buffer */
151} xfs_dq_logformat_t;
152
153/*
154 * log format struct for QUOTAOFF records.
155 * The first two fields must be the type and size fitting into
156 * 32 bits : log_recovery code assumes that.
157 * We write two LI_QUOTAOFF logitems per quotaoff, the last one keeps a pointer
158 * to the first and ensures that the first logitem is taken out of the AIL
159 * only when the last one is securely committed.
160 */
161typedef struct xfs_qoff_logformat {
162 unsigned short qf_type; /* quotaoff log item type */
163 unsigned short qf_size; /* size of this item */
164 unsigned int qf_flags; /* USR and/or GRP */
165 char qf_pad[12]; /* padding for future */
166} xfs_qoff_logformat_t;
167
168
169/*
170 * Disk quotas status in m_qflags, and also sb_qflags. 16 bits.
171 */
172#define XFS_UQUOTA_ACCT 0x0001 /* user quota accounting ON */
173#define XFS_UQUOTA_ENFD 0x0002 /* user quota limits enforced */
174#define XFS_UQUOTA_CHKD 0x0004 /* quotacheck run on usr quotas */
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000175#define XFS_PQUOTA_ACCT 0x0008 /* project quota accounting ON */
176#define XFS_OQUOTA_ENFD 0x0010 /* other (grp/prj) quota limits enforced */
177#define XFS_OQUOTA_CHKD 0x0020 /* quotacheck run on other (grp/prj) quotas */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178#define XFS_GQUOTA_ACCT 0x0040 /* group quota accounting ON */
179
180/*
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500181 * Conversion to and from the combined OQUOTA flag (if necessary)
182 * is done only in xfs_sb_qflags_to_disk() and xfs_sb_qflags_from_disk()
183 */
184#define XFS_GQUOTA_ENFD 0x0080 /* group quota limits enforced */
185#define XFS_GQUOTA_CHKD 0x0100 /* quotacheck run on group quotas */
186#define XFS_PQUOTA_ENFD 0x0200 /* project quota limits enforced */
187#define XFS_PQUOTA_CHKD 0x0400 /* quotacheck run on project quotas */
188
189/*
Tim Shimmin4cd4a032005-09-05 08:24:10 +1000190 * Quota Accounting/Enforcement flags
191 */
192#define XFS_ALL_QUOTA_ACCT \
193 (XFS_UQUOTA_ACCT | XFS_GQUOTA_ACCT | XFS_PQUOTA_ACCT)
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500194#define XFS_ALL_QUOTA_ENFD \
195 (XFS_UQUOTA_ENFD | XFS_GQUOTA_ENFD | XFS_PQUOTA_ENFD)
196#define XFS_ALL_QUOTA_CHKD \
197 (XFS_UQUOTA_CHKD | XFS_GQUOTA_CHKD | XFS_PQUOTA_CHKD)
Tim Shimmin4cd4a032005-09-05 08:24:10 +1000198
199#define XFS_IS_QUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_ALL_QUOTA_ACCT)
Tim Shimmin4cd4a032005-09-05 08:24:10 +1000200#define XFS_IS_UQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_UQUOTA_ACCT)
201#define XFS_IS_PQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_PQUOTA_ACCT)
202#define XFS_IS_GQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_GQUOTA_ACCT)
Kouta Ooizumie6d29422007-05-08 13:49:33 +1000203#define XFS_IS_UQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_UQUOTA_ENFD)
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500204#define XFS_IS_GQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_GQUOTA_ENFD)
205#define XFS_IS_PQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_PQUOTA_ENFD)
Tim Shimmin4cd4a032005-09-05 08:24:10 +1000206
207/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208 * Incore only flags for quotaoff - these bits get cleared when quota(s)
209 * are in the process of getting turned off. These flags are in m_qflags but
210 * never in sb_qflags.
211 */
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500212#define XFS_UQUOTA_ACTIVE 0x1000 /* uquotas are being turned off */
213#define XFS_GQUOTA_ACTIVE 0x2000 /* gquotas are being turned off */
214#define XFS_PQUOTA_ACTIVE 0x4000 /* pquotas are being turned off */
Chandra Seetharaman4177af32012-01-23 17:31:43 +0000215#define XFS_ALL_QUOTA_ACTIVE \
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500216 (XFS_UQUOTA_ACTIVE | XFS_GQUOTA_ACTIVE | XFS_PQUOTA_ACTIVE)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217
218/*
219 * Checking XFS_IS_*QUOTA_ON() while holding any inode lock guarantees
220 * quota will be not be switched off as long as that inode lock is held.
221 */
222#define XFS_IS_QUOTA_ON(mp) ((mp)->m_qflags & (XFS_UQUOTA_ACTIVE | \
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000223 XFS_GQUOTA_ACTIVE | \
224 XFS_PQUOTA_ACTIVE))
225#define XFS_IS_OQUOTA_ON(mp) ((mp)->m_qflags & (XFS_GQUOTA_ACTIVE | \
226 XFS_PQUOTA_ACTIVE))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227#define XFS_IS_UQUOTA_ON(mp) ((mp)->m_qflags & XFS_UQUOTA_ACTIVE)
228#define XFS_IS_GQUOTA_ON(mp) ((mp)->m_qflags & XFS_GQUOTA_ACTIVE)
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000229#define XFS_IS_PQUOTA_ON(mp) ((mp)->m_qflags & XFS_PQUOTA_ACTIVE)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230
231/*
232 * Flags to tell various functions what to do. Not all of these are meaningful
233 * to a single function. None of these XFS_QMOPT_* flags are meant to have
234 * persistent values (ie. their values can and will change between versions)
235 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236#define XFS_QMOPT_DQALLOC 0x0000002 /* alloc dquot ondisk if needed */
237#define XFS_QMOPT_UQUOTA 0x0000004 /* user dquot requested */
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000238#define XFS_QMOPT_PQUOTA 0x0000008 /* project dquot requested */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239#define XFS_QMOPT_FORCE_RES 0x0000010 /* ignore quota limits */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240#define XFS_QMOPT_SBVERSION 0x0000040 /* change superblock version num */
Nathan Scott9a2a7de2006-03-31 13:04:49 +1000241#define XFS_QMOPT_DOWARN 0x0000400 /* increase warning cnt if needed */
Nathan Scott9a2a7de2006-03-31 13:04:49 +1000242#define XFS_QMOPT_DQREPAIR 0x0001000 /* repair dquot if damaged */
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000243#define XFS_QMOPT_GQUOTA 0x0002000 /* group dquot requested */
Nathan Scott9a2a7de2006-03-31 13:04:49 +1000244#define XFS_QMOPT_ENOSPC 0x0004000 /* enospc instead of edquot (prj) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245
246/*
247 * flags to xfs_trans_mod_dquot to indicate which field needs to be
248 * modified.
249 */
250#define XFS_QMOPT_RES_REGBLKS 0x0010000
251#define XFS_QMOPT_RES_RTBLKS 0x0020000
252#define XFS_QMOPT_BCOUNT 0x0040000
253#define XFS_QMOPT_ICOUNT 0x0080000
254#define XFS_QMOPT_RTBCOUNT 0x0100000
255#define XFS_QMOPT_DELBCOUNT 0x0200000
256#define XFS_QMOPT_DELRTBCOUNT 0x0400000
257#define XFS_QMOPT_RES_INOS 0x0800000
258
259/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260 * flags for dqalloc.
261 */
Dave Chinner20026d92010-02-04 09:48:58 +1100262#define XFS_QMOPT_INHERIT 0x1000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263
264/*
265 * flags to xfs_trans_mod_dquot.
266 */
267#define XFS_TRANS_DQ_RES_BLKS XFS_QMOPT_RES_REGBLKS
268#define XFS_TRANS_DQ_RES_RTBLKS XFS_QMOPT_RES_RTBLKS
269#define XFS_TRANS_DQ_RES_INOS XFS_QMOPT_RES_INOS
270#define XFS_TRANS_DQ_BCOUNT XFS_QMOPT_BCOUNT
271#define XFS_TRANS_DQ_DELBCOUNT XFS_QMOPT_DELBCOUNT
272#define XFS_TRANS_DQ_ICOUNT XFS_QMOPT_ICOUNT
273#define XFS_TRANS_DQ_RTBCOUNT XFS_QMOPT_RTBCOUNT
274#define XFS_TRANS_DQ_DELRTBCOUNT XFS_QMOPT_DELRTBCOUNT
275
276
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000277#define XFS_QMOPT_QUOTALL \
278 (XFS_QMOPT_UQUOTA | XFS_QMOPT_PQUOTA | XFS_QMOPT_GQUOTA)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279#define XFS_QMOPT_RESBLK_MASK (XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_RES_RTBLKS)
280
281#ifdef __KERNEL__
282/*
283 * This check is done typically without holding the inode lock;
Nathan Scottc41564b2006-03-29 08:55:14 +1000284 * that may seem racy, but it is harmless in the context that it is used.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 * The inode cannot go inactive as long a reference is kept, and
286 * therefore if dquot(s) were attached, they'll stay consistent.
287 * If, for example, the ownership of the inode changes while
288 * we didn't have the inode locked, the appropriate dquot(s) will be
289 * attached atomically.
290 */
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500291#define XFS_NOT_DQATTACHED(mp, ip) \
292 ((XFS_IS_UQUOTA_ON(mp) && (ip)->i_udquot == NULL) || \
293 (XFS_IS_GQUOTA_ON(mp) && (ip)->i_gdquot == NULL) || \
294 (XFS_IS_PQUOTA_ON(mp) && (ip)->i_pdquot == NULL))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000296#define XFS_QM_NEED_QUOTACHECK(mp) \
297 ((XFS_IS_UQUOTA_ON(mp) && \
298 (mp->m_sb.sb_qflags & XFS_UQUOTA_CHKD) == 0) || \
299 (XFS_IS_GQUOTA_ON(mp) && \
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500300 (mp->m_sb.sb_qflags & XFS_GQUOTA_CHKD) == 0) || \
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000301 (XFS_IS_PQUOTA_ON(mp) && \
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500302 (mp->m_sb.sb_qflags & XFS_PQUOTA_CHKD) == 0))
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000303
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304#define XFS_MOUNT_QUOTA_ALL (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500305 XFS_UQUOTA_CHKD|XFS_GQUOTA_ACCT|\
306 XFS_GQUOTA_ENFD|XFS_GQUOTA_CHKD|\
307 XFS_PQUOTA_ACCT|XFS_PQUOTA_ENFD|\
308 XFS_PQUOTA_CHKD)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309
310
311/*
312 * The structure kept inside the xfs_trans_t keep track of dquot changes
313 * within a transaction and apply them later.
314 */
315typedef struct xfs_dqtrx {
316 struct xfs_dquot *qt_dquot; /* the dquot this refers to */
317 ulong qt_blk_res; /* blks reserved on a dquot */
318 ulong qt_blk_res_used; /* blks used from the reservation */
319 ulong qt_ino_res; /* inode reserved on a dquot */
320 ulong qt_ino_res_used; /* inodes used from the reservation */
321 long qt_bcount_delta; /* dquot blk count changes */
322 long qt_delbcnt_delta; /* delayed dquot blk count changes */
323 long qt_icount_delta; /* dquot inode count changes */
324 ulong qt_rtblk_res; /* # blks reserved on a dquot */
325 ulong qt_rtblk_res_used;/* # blks used from reservation */
326 long qt_rtbcount_delta;/* dquot realtime blk changes */
327 long qt_delrtb_delta; /* delayed RT blk count changes */
328} xfs_dqtrx_t;
329
Christoph Hellwig7d095252009-06-08 15:33:32 +0200330#ifdef CONFIG_XFS_QUOTA
331extern void xfs_trans_dup_dqinfo(struct xfs_trans *, struct xfs_trans *);
332extern void xfs_trans_free_dqinfo(struct xfs_trans *);
333extern void xfs_trans_mod_dquot_byino(struct xfs_trans *, struct xfs_inode *,
334 uint, long);
335extern void xfs_trans_apply_dquot_deltas(struct xfs_trans *);
336extern void xfs_trans_unreserve_and_mod_dquots(struct xfs_trans *);
337extern int xfs_trans_reserve_quota_nblks(struct xfs_trans *,
338 struct xfs_inode *, long, long, uint);
339extern int xfs_trans_reserve_quota_bydquots(struct xfs_trans *,
340 struct xfs_mount *, struct xfs_dquot *,
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500341 struct xfs_dquot *, struct xfs_dquot *, long, long, uint);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342
Christoph Hellwig7d095252009-06-08 15:33:32 +0200343extern int xfs_qm_vop_dqalloc(struct xfs_inode *, uid_t, gid_t, prid_t, uint,
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500344 struct xfs_dquot **, struct xfs_dquot **, struct xfs_dquot **);
Christoph Hellwig7d095252009-06-08 15:33:32 +0200345extern void xfs_qm_vop_create_dqattach(struct xfs_trans *, struct xfs_inode *,
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500346 struct xfs_dquot *, struct xfs_dquot *, struct xfs_dquot *);
Christoph Hellwig7d095252009-06-08 15:33:32 +0200347extern int xfs_qm_vop_rename_dqattach(struct xfs_inode **);
348extern struct xfs_dquot *xfs_qm_vop_chown(struct xfs_trans *,
349 struct xfs_inode *, struct xfs_dquot **, struct xfs_dquot *);
350extern int xfs_qm_vop_chown_reserve(struct xfs_trans *, struct xfs_inode *,
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500351 struct xfs_dquot *, struct xfs_dquot *,
352 struct xfs_dquot *, uint);
Christoph Hellwig7d095252009-06-08 15:33:32 +0200353extern int xfs_qm_dqattach(struct xfs_inode *, uint);
354extern int xfs_qm_dqattach_locked(struct xfs_inode *, uint);
355extern void xfs_qm_dqdetach(struct xfs_inode *);
356extern void xfs_qm_dqrele(struct xfs_dquot *);
357extern void xfs_qm_statvfs(struct xfs_inode *, struct kstatfs *);
Christoph Hellwig7d095252009-06-08 15:33:32 +0200358extern int xfs_qm_newmount(struct xfs_mount *, uint *, uint *);
359extern void xfs_qm_mount_quotas(struct xfs_mount *);
360extern void xfs_qm_unmount(struct xfs_mount *);
361extern void xfs_qm_unmount_quotas(struct xfs_mount *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362
Christoph Hellwig7d095252009-06-08 15:33:32 +0200363#else
Christoph Hellwig493b87e2009-06-12 11:34:55 -0400364static inline int
365xfs_qm_vop_dqalloc(struct xfs_inode *ip, uid_t uid, gid_t gid, prid_t prid,
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500366 uint flags, struct xfs_dquot **udqp, struct xfs_dquot **gdqp,
367 struct xfs_dquot **pdqp)
Christoph Hellwig493b87e2009-06-12 11:34:55 -0400368{
369 *udqp = NULL;
370 *gdqp = NULL;
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500371 *pdqp = NULL;
Christoph Hellwig493b87e2009-06-12 11:34:55 -0400372 return 0;
373}
Christoph Hellwig7d095252009-06-08 15:33:32 +0200374#define xfs_trans_dup_dqinfo(tp, tp2)
375#define xfs_trans_free_dqinfo(tp)
376#define xfs_trans_mod_dquot_byino(tp, ip, fields, delta)
377#define xfs_trans_apply_dquot_deltas(tp)
378#define xfs_trans_unreserve_and_mod_dquots(tp)
Christoph Hellwig5d2bf8a2010-11-06 11:42:56 +0000379static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp,
380 struct xfs_inode *ip, long nblks, long ninos, uint flags)
381{
382 return 0;
383}
384static inline int xfs_trans_reserve_quota_bydquots(struct xfs_trans *tp,
385 struct xfs_mount *mp, struct xfs_dquot *udqp,
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500386 struct xfs_dquot *gdqp, struct xfs_dquot *pdqp,
387 long nblks, long nions, uint flags)
Christoph Hellwig5d2bf8a2010-11-06 11:42:56 +0000388{
389 return 0;
390}
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500391#define xfs_qm_vop_create_dqattach(tp, ip, u, g, p)
Christoph Hellwig7d095252009-06-08 15:33:32 +0200392#define xfs_qm_vop_rename_dqattach(it) (0)
393#define xfs_qm_vop_chown(tp, ip, old, new) (NULL)
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500394#define xfs_qm_vop_chown_reserve(tp, ip, u, g, p, fl) (0)
Christoph Hellwig7d095252009-06-08 15:33:32 +0200395#define xfs_qm_dqattach(ip, fl) (0)
396#define xfs_qm_dqattach_locked(ip, fl) (0)
397#define xfs_qm_dqdetach(ip)
398#define xfs_qm_dqrele(d)
399#define xfs_qm_statvfs(ip, s)
Christoph Hellwig7d095252009-06-08 15:33:32 +0200400#define xfs_qm_newmount(mp, a, b) (0)
401#define xfs_qm_mount_quotas(mp)
402#define xfs_qm_unmount(mp)
Christoph Hellwig5d2bf8a2010-11-06 11:42:56 +0000403#define xfs_qm_unmount_quotas(mp)
Christoph Hellwig7d095252009-06-08 15:33:32 +0200404#endif /* CONFIG_XFS_QUOTA */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405
Christoph Hellwig7d095252009-06-08 15:33:32 +0200406#define xfs_trans_unreserve_quota_nblks(tp, ip, nblks, ninos, flags) \
407 xfs_trans_reserve_quota_nblks(tp, ip, -(nblks), -(ninos), flags)
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500408#define xfs_trans_reserve_quota(tp, mp, ud, gd, pd, nb, ni, f) \
409 xfs_trans_reserve_quota_bydquots(tp, mp, ud, gd, pd, nb, ni, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 f | XFS_QMOPT_RES_REGBLKS)
411
Dave Chinnera0fa2b62011-03-07 10:01:35 +1100412extern int xfs_qm_dqcheck(struct xfs_mount *, xfs_disk_dquot_t *,
413 xfs_dqid_t, uint, uint, char *);
Tim Shimmin4cd4a032005-09-05 08:24:10 +1000414extern int xfs_mount_reset_sbqflags(struct xfs_mount *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415
Christoph Hellwig3fe58f32013-04-03 16:11:16 +1100416extern const struct xfs_buf_ops xfs_dquot_buf_ops;
417
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418#endif /* __KERNEL__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419#endif /* __XFS_QUOTA_H__ */