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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Nathan Scott4ce31212005-11-02 14:59:41 +11002 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
Nathan Scott4ce31212005-11-02 14:59:41 +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 Scott4ce31212005-11-02 14:59:41 +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 Scott4ce31212005-11-02 14:59:41 +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_QM_H__
19#define __XFS_QM_H__
20
21#include "xfs_dquot_item.h"
22#include "xfs_dquot.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070023
Linus Torvalds1da177e2005-04-16 15:20:36 -070024struct xfs_inode;
25
Christoph Hellwiga05931c2012-03-13 08:52:37 +000026extern struct kmem_zone *xfs_qm_dqtrxzone;
Linus Torvalds1da177e2005-04-16 15:20:36 -070027
28/*
Jie Liuafbd1232013-11-23 00:15:43 +080029 * Number of bmaps that we ask from bmapi when doing a quotacheck.
30 * We make this restriction to keep the memory usage to a minimum.
31 */
32#define XFS_DQITER_MAP_SIZE 10
33
34#define XFS_IS_DQUOT_UNINITIALIZED(dqp) ( \
35 !dqp->q_core.d_blk_hardlimit && \
36 !dqp->q_core.d_blk_softlimit && \
37 !dqp->q_core.d_rtb_hardlimit && \
38 !dqp->q_core.d_rtb_softlimit && \
39 !dqp->q_core.d_ino_hardlimit && \
40 !dqp->q_core.d_ino_softlimit && \
41 !dqp->q_core.d_bcount && \
42 !dqp->q_core.d_rtbcount && \
43 !dqp->q_core.d_icount)
44
45/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070046 * This defines the unit of allocation of dquots.
47 * Currently, it is just one file system block, and a 4K blk contains 30
48 * (136 * 30 = 4080) dquots. It's probably not worth trying to make
49 * this more dynamic.
50 * XXXsup However, if this number is changed, we have to make sure that we don't
51 * implicitly assume that we do allocations in chunks of a single filesystem
52 * block in the dquot/xqm code.
53 */
54#define XFS_DQUOT_CLUSTER_SIZE_FSB (xfs_filblks_t)1
Linus Torvalds1da177e2005-04-16 15:20:36 -070055
Linus Torvalds1da177e2005-04-16 15:20:36 -070056/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070057 * Various quota information for individual filesystems.
58 * The mount structure keeps a pointer to this.
59 */
60typedef struct xfs_quotainfo {
Christoph Hellwig9f920f12012-03-13 08:52:35 +000061 struct radix_tree_root qi_uquota_tree;
62 struct radix_tree_root qi_gquota_tree;
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -050063 struct radix_tree_root qi_pquota_tree;
Christoph Hellwig9f920f12012-03-13 08:52:35 +000064 struct mutex qi_tree_lock;
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -050065 struct xfs_inode *qi_uquotaip; /* user quota inode */
66 struct xfs_inode *qi_gquotaip; /* group quota inode */
67 struct xfs_inode *qi_pquotaip; /* project quota inode */
Dave Chinnercd56a392013-08-28 10:18:07 +100068 struct list_lru qi_lru;
Dave Chinner3a254042010-04-13 15:06:48 +100069 int qi_dquots;
Linus Torvalds1da177e2005-04-16 15:20:36 -070070 time_t qi_btimelimit; /* limit for blks timer */
71 time_t qi_itimelimit; /* limit for inodes timer */
72 time_t qi_rtbtimelimit;/* limit for rt blks timer */
Nathan Scott06d10dd2005-06-21 15:48:47 +100073 xfs_qwarncnt_t qi_bwarnlimit; /* limit for blks warnings */
74 xfs_qwarncnt_t qi_iwarnlimit; /* limit for inodes warnings */
75 xfs_qwarncnt_t qi_rtbwarnlimit;/* limit for rt blks warnings */
Christoph Hellwiga0b0b8a2009-03-29 09:51:00 +020076 struct mutex qi_quotaofflock;/* to serialize quotaoff */
Linus Torvalds1da177e2005-04-16 15:20:36 -070077 xfs_filblks_t qi_dqchunklen; /* # BBs in a chunk of dqs */
78 uint qi_dqperchunk; /* # ondisk dqs in above chunk */
79 xfs_qcnt_t qi_bhardlimit; /* default data blk hard limit */
80 xfs_qcnt_t qi_bsoftlimit; /* default data blk soft limit */
81 xfs_qcnt_t qi_ihardlimit; /* default inode count hard limit */
82 xfs_qcnt_t qi_isoftlimit; /* default inode count soft limit */
83 xfs_qcnt_t qi_rtbhardlimit;/* default realtime blk hard limit */
84 xfs_qcnt_t qi_rtbsoftlimit;/* default realtime blk soft limit */
Christoph Hellwigf8739c32012-03-13 08:52:34 +000085 struct shrinker qi_shrinker;
Linus Torvalds1da177e2005-04-16 15:20:36 -070086} xfs_quotainfo_t;
87
Chandra Seetharaman329e0872013-06-27 17:25:05 -050088static inline struct radix_tree_root *
89xfs_dquot_tree(
90 struct xfs_quotainfo *qi,
91 int type)
92{
93 switch (type) {
94 case XFS_DQ_USER:
95 return &qi->qi_uquota_tree;
96 case XFS_DQ_GROUP:
Chandra Seetharaman329e0872013-06-27 17:25:05 -050097 return &qi->qi_gquota_tree;
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -050098 case XFS_DQ_PROJ:
99 return &qi->qi_pquota_tree;
Chandra Seetharaman329e0872013-06-27 17:25:05 -0500100 default:
101 ASSERT(0);
102 }
103 return NULL;
104}
Chandra Seetharaman995961c2013-06-27 17:25:06 -0500105
106static inline struct xfs_inode *
107xfs_dq_to_quota_inode(struct xfs_dquot *dqp)
108{
109 switch (dqp->dq_flags & XFS_DQ_ALLTYPES) {
110 case XFS_DQ_USER:
111 return dqp->q_mount->m_quotainfo->qi_uquotaip;
112 case XFS_DQ_GROUP:
Chandra Seetharaman995961c2013-06-27 17:25:06 -0500113 return dqp->q_mount->m_quotainfo->qi_gquotaip;
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500114 case XFS_DQ_PROJ:
115 return dqp->q_mount->m_quotainfo->qi_pquotaip;
Chandra Seetharaman995961c2013-06-27 17:25:06 -0500116 default:
117 ASSERT(0);
118 }
119 return NULL;
120}
121
Chandra Seetharaman113a5682013-06-27 17:25:07 -0500122extern void xfs_trans_mod_dquot(struct xfs_trans *,
123 struct xfs_dquot *, uint, long);
124extern int xfs_trans_reserve_quota_bydquots(struct xfs_trans *,
125 struct xfs_mount *, struct xfs_dquot *,
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500126 struct xfs_dquot *, struct xfs_dquot *,
127 long, long, uint);
Chandra Seetharaman113a5682013-06-27 17:25:07 -0500128extern void xfs_trans_dqjoin(struct xfs_trans *, struct xfs_dquot *);
129extern void xfs_trans_log_dquot(struct xfs_trans *, struct xfs_dquot *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130
131/*
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500132 * We keep the usr, grp, and prj dquots separately so that locking will be
133 * easier to do at commit time. All transactions that we know of at this point
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134 * affect no more than two dquots of one type. Hence, the TRANS_MAXDQS value.
135 */
Chandra Seetharaman0e6436d2013-06-27 17:25:09 -0500136enum {
137 XFS_QM_TRANS_USR = 0,
138 XFS_QM_TRANS_GRP,
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500139 XFS_QM_TRANS_PRJ,
Chandra Seetharaman0e6436d2013-06-27 17:25:09 -0500140 XFS_QM_TRANS_DQTYPES
141};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142#define XFS_QM_TRANS_MAXDQS 2
Chandra Seetharaman0e6436d2013-06-27 17:25:09 -0500143struct xfs_dquot_acct {
144 struct xfs_dqtrx dqs[XFS_QM_TRANS_DQTYPES][XFS_QM_TRANS_MAXDQS];
145};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146
147/*
148 * Users are allowed to have a usage exceeding their softlimit for
149 * a period this long.
150 */
151#define XFS_QM_BTIMELIMIT (7 * 24*60*60) /* 1 week */
152#define XFS_QM_RTBTIMELIMIT (7 * 24*60*60) /* 1 week */
153#define XFS_QM_ITIMELIMIT (7 * 24*60*60) /* 1 week */
154
155#define XFS_QM_BWARNLIMIT 5
156#define XFS_QM_IWARNLIMIT 5
Nathan Scott06d10dd2005-06-21 15:48:47 +1000157#define XFS_QM_RTBWARNLIMIT 5
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158
Chandra Seetharaman113a5682013-06-27 17:25:07 -0500159extern void xfs_qm_destroy_quotainfo(struct xfs_mount *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160
161/* dquot stuff */
Chandra Seetharaman113a5682013-06-27 17:25:07 -0500162extern void xfs_qm_dqpurge_all(struct xfs_mount *, uint);
163extern void xfs_qm_dqrele_all_inodes(struct xfs_mount *, uint);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164
Christoph Hellwigfcafb712009-02-09 08:47:34 +0100165/* quota ops */
Chandra Seetharaman113a5682013-06-27 17:25:07 -0500166extern int xfs_qm_scall_trunc_qfiles(struct xfs_mount *, uint);
167extern int xfs_qm_scall_getquota(struct xfs_mount *, xfs_dqid_t,
Jan Kara14bf61f2014-10-09 16:03:13 +0200168 uint, struct qc_dqblk *);
Brian Fosterb1366452013-03-18 10:51:46 -0400169extern int xfs_qm_scall_setqlim(struct xfs_mount *, xfs_dqid_t, uint,
Jan Kara14bf61f2014-10-09 16:03:13 +0200170 struct qc_dqblk *);
Chandra Seetharaman113a5682013-06-27 17:25:07 -0500171extern int xfs_qm_scall_quotaon(struct xfs_mount *, uint);
172extern int xfs_qm_scall_quotaoff(struct xfs_mount *, uint);
Christoph Hellwigfcafb712009-02-09 08:47:34 +0100173
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174#endif /* __XFS_QM_H__ */