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Commit 0409d3a332fc4347efba535a5003943f2a4aa1ca

Authored by David Woodhouse
1 parent 997b7af2fe
Exists in master and in 7 other branches imx_3.0.35_4.1.0, imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-l5.0.0_1.0.0-ga

Don't include private headers from user-visible parts of linux/quota.h 

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

Showing 1 changed file with 2 additions and 2 deletions Inline Diff

include/linux/quota.h
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1 /* 1 /*
2 * Copyright (c) 1982, 1986 Regents of the University of California. 2 * Copyright (c) 1982, 1986 Regents of the University of California.
3 * All rights reserved. 3 * All rights reserved.
4 * 4 *
5 * This code is derived from software contributed to Berkeley by 5 * This code is derived from software contributed to Berkeley by
6 * Robert Elz at The University of Melbourne. 6 * Robert Elz at The University of Melbourne.
7 * 7 *
8 * Redistribution and use in source and binary forms, with or without 8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions 9 * modification, are permitted provided that the following conditions
10 * are met: 10 * are met:
11 * 1. Redistributions of source code must retain the above copyright 11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer. 12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors 16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software 17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission. 18 * without specific prior written permission.
19 * 19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE. 30 * SUCH DAMAGE.
31 * 31 *
32 * Version: $Id: quota.h,v 2.0 1996/11/17 16:48:14 mvw Exp mvw $ 32 * Version: $Id: quota.h,v 2.0 1996/11/17 16:48:14 mvw Exp mvw $
33 */ 33 */
34 34
35 #ifndef _LINUX_QUOTA_ 35 #ifndef _LINUX_QUOTA_
36 #define _LINUX_QUOTA_ 36 #define _LINUX_QUOTA_
37 37
38 #include <linux/errno.h> 38 #include <linux/errno.h>
39 #include <linux/types.h> 39 #include <linux/types.h>
40 #include <linux/spinlock.h>
41 #include <linux/mutex.h>
42 40
43 #define __DQUOT_VERSION__ "dquot_6.5.1" 41 #define __DQUOT_VERSION__ "dquot_6.5.1"
44 #define __DQUOT_NUM_VERSION__ 6*10000+5*100+1 42 #define __DQUOT_NUM_VERSION__ 6*10000+5*100+1
45 43
46 typedef __kernel_uid32_t qid_t; /* Type in which we store ids in memory */ 44 typedef __kernel_uid32_t qid_t; /* Type in which we store ids in memory */
47 typedef __u64 qsize_t; /* Type in which we store sizes */ 45 typedef __u64 qsize_t; /* Type in which we store sizes */
48 46
49 extern spinlock_t dq_data_lock; 47 extern spinlock_t dq_data_lock;
50 48
51 /* Size of blocks in which are counted size limits */ 49 /* Size of blocks in which are counted size limits */
52 #define QUOTABLOCK_BITS 10 50 #define QUOTABLOCK_BITS 10
53 #define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS) 51 #define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS)
54 52
55 /* Conversion routines from and to quota blocks */ 53 /* Conversion routines from and to quota blocks */
56 #define qb2kb(x) ((x) << (QUOTABLOCK_BITS-10)) 54 #define qb2kb(x) ((x) << (QUOTABLOCK_BITS-10))
57 #define kb2qb(x) ((x) >> (QUOTABLOCK_BITS-10)) 55 #define kb2qb(x) ((x) >> (QUOTABLOCK_BITS-10))
58 #define toqb(x) (((x) + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS) 56 #define toqb(x) (((x) + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS)
59 57
60 #define MAXQUOTAS 2 58 #define MAXQUOTAS 2
61 #define USRQUOTA 0 /* element used for user quotas */ 59 #define USRQUOTA 0 /* element used for user quotas */
62 #define GRPQUOTA 1 /* element used for group quotas */ 60 #define GRPQUOTA 1 /* element used for group quotas */
63 61
64 /* 62 /*
65 * Definitions for the default names of the quotas files. 63 * Definitions for the default names of the quotas files.
66 */ 64 */
67 #define INITQFNAMES { \ 65 #define INITQFNAMES { \
68 "user", /* USRQUOTA */ \ 66 "user", /* USRQUOTA */ \
69 "group", /* GRPQUOTA */ \ 67 "group", /* GRPQUOTA */ \
70 "undefined", \ 68 "undefined", \
71 }; 69 };
72 70
73 /* 71 /*
74 * Command definitions for the 'quotactl' system call. 72 * Command definitions for the 'quotactl' system call.
75 * The commands are broken into a main command defined below 73 * The commands are broken into a main command defined below
76 * and a subcommand that is used to convey the type of 74 * and a subcommand that is used to convey the type of
77 * quota that is being manipulated (see above). 75 * quota that is being manipulated (see above).
78 */ 76 */
79 #define SUBCMDMASK 0x00ff 77 #define SUBCMDMASK 0x00ff
80 #define SUBCMDSHIFT 8 78 #define SUBCMDSHIFT 8
81 #define QCMD(cmd, type) (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK)) 79 #define QCMD(cmd, type) (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK))
82 80
83 #define Q_SYNC 0x800001 /* sync disk copy of a filesystems quotas */ 81 #define Q_SYNC 0x800001 /* sync disk copy of a filesystems quotas */
84 #define Q_QUOTAON 0x800002 /* turn quotas on */ 82 #define Q_QUOTAON 0x800002 /* turn quotas on */
85 #define Q_QUOTAOFF 0x800003 /* turn quotas off */ 83 #define Q_QUOTAOFF 0x800003 /* turn quotas off */
86 #define Q_GETFMT 0x800004 /* get quota format used on given filesystem */ 84 #define Q_GETFMT 0x800004 /* get quota format used on given filesystem */
87 #define Q_GETINFO 0x800005 /* get information about quota files */ 85 #define Q_GETINFO 0x800005 /* get information about quota files */
88 #define Q_SETINFO 0x800006 /* set information about quota files */ 86 #define Q_SETINFO 0x800006 /* set information about quota files */
89 #define Q_GETQUOTA 0x800007 /* get user quota structure */ 87 #define Q_GETQUOTA 0x800007 /* get user quota structure */
90 #define Q_SETQUOTA 0x800008 /* set user quota structure */ 88 #define Q_SETQUOTA 0x800008 /* set user quota structure */
91 89
92 /* 90 /*
93 * Quota structure used for communication with userspace via quotactl 91 * Quota structure used for communication with userspace via quotactl
94 * Following flags are used to specify which fields are valid 92 * Following flags are used to specify which fields are valid
95 */ 93 */
96 #define QIF_BLIMITS 1 94 #define QIF_BLIMITS 1
97 #define QIF_SPACE 2 95 #define QIF_SPACE 2
98 #define QIF_ILIMITS 4 96 #define QIF_ILIMITS 4
99 #define QIF_INODES 8 97 #define QIF_INODES 8
100 #define QIF_BTIME 16 98 #define QIF_BTIME 16
101 #define QIF_ITIME 32 99 #define QIF_ITIME 32
102 #define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS) 100 #define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
103 #define QIF_USAGE (QIF_SPACE | QIF_INODES) 101 #define QIF_USAGE (QIF_SPACE | QIF_INODES)
104 #define QIF_TIMES (QIF_BTIME | QIF_ITIME) 102 #define QIF_TIMES (QIF_BTIME | QIF_ITIME)
105 #define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES) 103 #define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
106 104
107 struct if_dqblk { 105 struct if_dqblk {
108 __u64 dqb_bhardlimit; 106 __u64 dqb_bhardlimit;
109 __u64 dqb_bsoftlimit; 107 __u64 dqb_bsoftlimit;
110 __u64 dqb_curspace; 108 __u64 dqb_curspace;
111 __u64 dqb_ihardlimit; 109 __u64 dqb_ihardlimit;
112 __u64 dqb_isoftlimit; 110 __u64 dqb_isoftlimit;
113 __u64 dqb_curinodes; 111 __u64 dqb_curinodes;
114 __u64 dqb_btime; 112 __u64 dqb_btime;
115 __u64 dqb_itime; 113 __u64 dqb_itime;
116 __u32 dqb_valid; 114 __u32 dqb_valid;
117 }; 115 };
118 116
119 /* 117 /*
120 * Structure used for setting quota information about file via quotactl 118 * Structure used for setting quota information about file via quotactl
121 * Following flags are used to specify which fields are valid 119 * Following flags are used to specify which fields are valid
122 */ 120 */
123 #define IIF_BGRACE 1 121 #define IIF_BGRACE 1
124 #define IIF_IGRACE 2 122 #define IIF_IGRACE 2
125 #define IIF_FLAGS 4 123 #define IIF_FLAGS 4
126 #define IIF_ALL (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS) 124 #define IIF_ALL (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)
127 125
128 struct if_dqinfo { 126 struct if_dqinfo {
129 __u64 dqi_bgrace; 127 __u64 dqi_bgrace;
130 __u64 dqi_igrace; 128 __u64 dqi_igrace;
131 __u32 dqi_flags; 129 __u32 dqi_flags;
132 __u32 dqi_valid; 130 __u32 dqi_valid;
133 }; 131 };
134 132
135 #ifdef __KERNEL__ 133 #ifdef __KERNEL__
134 #include <linux/spinlock.h>
135 #include <linux/mutex.h>
136 136
137 #include <linux/dqblk_xfs.h> 137 #include <linux/dqblk_xfs.h>
138 #include <linux/dqblk_v1.h> 138 #include <linux/dqblk_v1.h>
139 #include <linux/dqblk_v2.h> 139 #include <linux/dqblk_v2.h>
140 140
141 /* Maximal numbers of writes for quota operation (insert/delete/update) 141 /* Maximal numbers of writes for quota operation (insert/delete/update)
142 * (over VFS all formats) */ 142 * (over VFS all formats) */
143 #define DQUOT_INIT_ALLOC max(V1_INIT_ALLOC, V2_INIT_ALLOC) 143 #define DQUOT_INIT_ALLOC max(V1_INIT_ALLOC, V2_INIT_ALLOC)
144 #define DQUOT_INIT_REWRITE max(V1_INIT_REWRITE, V2_INIT_REWRITE) 144 #define DQUOT_INIT_REWRITE max(V1_INIT_REWRITE, V2_INIT_REWRITE)
145 #define DQUOT_DEL_ALLOC max(V1_DEL_ALLOC, V2_DEL_ALLOC) 145 #define DQUOT_DEL_ALLOC max(V1_DEL_ALLOC, V2_DEL_ALLOC)
146 #define DQUOT_DEL_REWRITE max(V1_DEL_REWRITE, V2_DEL_REWRITE) 146 #define DQUOT_DEL_REWRITE max(V1_DEL_REWRITE, V2_DEL_REWRITE)
147 147
148 /* 148 /*
149 * Data for one user/group kept in memory 149 * Data for one user/group kept in memory
150 */ 150 */
151 struct mem_dqblk { 151 struct mem_dqblk {
152 __u32 dqb_bhardlimit; /* absolute limit on disk blks alloc */ 152 __u32 dqb_bhardlimit; /* absolute limit on disk blks alloc */
153 __u32 dqb_bsoftlimit; /* preferred limit on disk blks */ 153 __u32 dqb_bsoftlimit; /* preferred limit on disk blks */
154 qsize_t dqb_curspace; /* current used space */ 154 qsize_t dqb_curspace; /* current used space */
155 __u32 dqb_ihardlimit; /* absolute limit on allocated inodes */ 155 __u32 dqb_ihardlimit; /* absolute limit on allocated inodes */
156 __u32 dqb_isoftlimit; /* preferred inode limit */ 156 __u32 dqb_isoftlimit; /* preferred inode limit */
157 __u32 dqb_curinodes; /* current # allocated inodes */ 157 __u32 dqb_curinodes; /* current # allocated inodes */
158 time_t dqb_btime; /* time limit for excessive disk use */ 158 time_t dqb_btime; /* time limit for excessive disk use */
159 time_t dqb_itime; /* time limit for excessive inode use */ 159 time_t dqb_itime; /* time limit for excessive inode use */
160 }; 160 };
161 161
162 /* 162 /*
163 * Data for one quotafile kept in memory 163 * Data for one quotafile kept in memory
164 */ 164 */
165 struct quota_format_type; 165 struct quota_format_type;
166 166
167 struct mem_dqinfo { 167 struct mem_dqinfo {
168 struct quota_format_type *dqi_format; 168 struct quota_format_type *dqi_format;
169 struct list_head dqi_dirty_list; /* List of dirty dquots */ 169 struct list_head dqi_dirty_list; /* List of dirty dquots */
170 unsigned long dqi_flags; 170 unsigned long dqi_flags;
171 unsigned int dqi_bgrace; 171 unsigned int dqi_bgrace;
172 unsigned int dqi_igrace; 172 unsigned int dqi_igrace;
173 union { 173 union {
174 struct v1_mem_dqinfo v1_i; 174 struct v1_mem_dqinfo v1_i;
175 struct v2_mem_dqinfo v2_i; 175 struct v2_mem_dqinfo v2_i;
176 } u; 176 } u;
177 }; 177 };
178 178
179 struct super_block; 179 struct super_block;
180 180
181 #define DQF_MASK 0xffff /* Mask for format specific flags */ 181 #define DQF_MASK 0xffff /* Mask for format specific flags */
182 #define DQF_INFO_DIRTY_B 16 182 #define DQF_INFO_DIRTY_B 16
183 #define DQF_INFO_DIRTY (1 << DQF_INFO_DIRTY_B) /* Is info dirty? */ 183 #define DQF_INFO_DIRTY (1 << DQF_INFO_DIRTY_B) /* Is info dirty? */
184 184
185 extern void mark_info_dirty(struct super_block *sb, int type); 185 extern void mark_info_dirty(struct super_block *sb, int type);
186 #define info_dirty(info) test_bit(DQF_INFO_DIRTY_B, &(info)->dqi_flags) 186 #define info_dirty(info) test_bit(DQF_INFO_DIRTY_B, &(info)->dqi_flags)
187 #define info_any_dquot_dirty(info) (!list_empty(&(info)->dqi_dirty_list)) 187 #define info_any_dquot_dirty(info) (!list_empty(&(info)->dqi_dirty_list))
188 #define info_any_dirty(info) (info_dirty(info) || info_any_dquot_dirty(info)) 188 #define info_any_dirty(info) (info_dirty(info) || info_any_dquot_dirty(info))
189 189
190 #define sb_dqopt(sb) (&(sb)->s_dquot) 190 #define sb_dqopt(sb) (&(sb)->s_dquot)
191 #define sb_dqinfo(sb, type) (sb_dqopt(sb)->info+(type)) 191 #define sb_dqinfo(sb, type) (sb_dqopt(sb)->info+(type))
192 192
193 struct dqstats { 193 struct dqstats {
194 int lookups; 194 int lookups;
195 int drops; 195 int drops;
196 int reads; 196 int reads;
197 int writes; 197 int writes;
198 int cache_hits; 198 int cache_hits;
199 int allocated_dquots; 199 int allocated_dquots;
200 int free_dquots; 200 int free_dquots;
201 int syncs; 201 int syncs;
202 }; 202 };
203 203
204 extern struct dqstats dqstats; 204 extern struct dqstats dqstats;
205 205
206 #define DQ_MOD_B 0 /* dquot modified since read */ 206 #define DQ_MOD_B 0 /* dquot modified since read */
207 #define DQ_BLKS_B 1 /* uid/gid has been warned about blk limit */ 207 #define DQ_BLKS_B 1 /* uid/gid has been warned about blk limit */
208 #define DQ_INODES_B 2 /* uid/gid has been warned about inode limit */ 208 #define DQ_INODES_B 2 /* uid/gid has been warned about inode limit */
209 #define DQ_FAKE_B 3 /* no limits only usage */ 209 #define DQ_FAKE_B 3 /* no limits only usage */
210 #define DQ_READ_B 4 /* dquot was read into memory */ 210 #define DQ_READ_B 4 /* dquot was read into memory */
211 #define DQ_ACTIVE_B 5 /* dquot is active (dquot_release not called) */ 211 #define DQ_ACTIVE_B 5 /* dquot is active (dquot_release not called) */
212 212
213 struct dquot { 213 struct dquot {
214 struct hlist_node dq_hash; /* Hash list in memory */ 214 struct hlist_node dq_hash; /* Hash list in memory */
215 struct list_head dq_inuse; /* List of all quotas */ 215 struct list_head dq_inuse; /* List of all quotas */
216 struct list_head dq_free; /* Free list element */ 216 struct list_head dq_free; /* Free list element */
217 struct list_head dq_dirty; /* List of dirty dquots */ 217 struct list_head dq_dirty; /* List of dirty dquots */
218 struct mutex dq_lock; /* dquot IO lock */ 218 struct mutex dq_lock; /* dquot IO lock */
219 atomic_t dq_count; /* Use count */ 219 atomic_t dq_count; /* Use count */
220 wait_queue_head_t dq_wait_unused; /* Wait queue for dquot to become unused */ 220 wait_queue_head_t dq_wait_unused; /* Wait queue for dquot to become unused */
221 struct super_block *dq_sb; /* superblock this applies to */ 221 struct super_block *dq_sb; /* superblock this applies to */
222 unsigned int dq_id; /* ID this applies to (uid, gid) */ 222 unsigned int dq_id; /* ID this applies to (uid, gid) */
223 loff_t dq_off; /* Offset of dquot on disk */ 223 loff_t dq_off; /* Offset of dquot on disk */
224 unsigned long dq_flags; /* See DQ_* */ 224 unsigned long dq_flags; /* See DQ_* */
225 short dq_type; /* Type of quota */ 225 short dq_type; /* Type of quota */
226 struct mem_dqblk dq_dqb; /* Diskquota usage */ 226 struct mem_dqblk dq_dqb; /* Diskquota usage */
227 }; 227 };
228 228
229 #define NODQUOT (struct dquot *)NULL 229 #define NODQUOT (struct dquot *)NULL
230 230
231 #define QUOTA_OK 0 231 #define QUOTA_OK 0
232 #define NO_QUOTA 1 232 #define NO_QUOTA 1
233 233
234 /* Operations which must be implemented by each quota format */ 234 /* Operations which must be implemented by each quota format */
235 struct quota_format_ops { 235 struct quota_format_ops {
236 int (*check_quota_file)(struct super_block *sb, int type); /* Detect whether file is in our format */ 236 int (*check_quota_file)(struct super_block *sb, int type); /* Detect whether file is in our format */
237 int (*read_file_info)(struct super_block *sb, int type); /* Read main info about file - called on quotaon() */ 237 int (*read_file_info)(struct super_block *sb, int type); /* Read main info about file - called on quotaon() */
238 int (*write_file_info)(struct super_block *sb, int type); /* Write main info about file */ 238 int (*write_file_info)(struct super_block *sb, int type); /* Write main info about file */
239 int (*free_file_info)(struct super_block *sb, int type); /* Called on quotaoff() */ 239 int (*free_file_info)(struct super_block *sb, int type); /* Called on quotaoff() */
240 int (*read_dqblk)(struct dquot *dquot); /* Read structure for one user */ 240 int (*read_dqblk)(struct dquot *dquot); /* Read structure for one user */
241 int (*commit_dqblk)(struct dquot *dquot); /* Write structure for one user */ 241 int (*commit_dqblk)(struct dquot *dquot); /* Write structure for one user */
242 int (*release_dqblk)(struct dquot *dquot); /* Called when last reference to dquot is being dropped */ 242 int (*release_dqblk)(struct dquot *dquot); /* Called when last reference to dquot is being dropped */
243 }; 243 };
244 244
245 /* Operations working with dquots */ 245 /* Operations working with dquots */
246 struct dquot_operations { 246 struct dquot_operations {
247 int (*initialize) (struct inode *, int); 247 int (*initialize) (struct inode *, int);
248 int (*drop) (struct inode *); 248 int (*drop) (struct inode *);
249 int (*alloc_space) (struct inode *, qsize_t, int); 249 int (*alloc_space) (struct inode *, qsize_t, int);
250 int (*alloc_inode) (const struct inode *, unsigned long); 250 int (*alloc_inode) (const struct inode *, unsigned long);
251 int (*free_space) (struct inode *, qsize_t); 251 int (*free_space) (struct inode *, qsize_t);
252 int (*free_inode) (const struct inode *, unsigned long); 252 int (*free_inode) (const struct inode *, unsigned long);
253 int (*transfer) (struct inode *, struct iattr *); 253 int (*transfer) (struct inode *, struct iattr *);
254 int (*write_dquot) (struct dquot *); /* Ordinary dquot write */ 254 int (*write_dquot) (struct dquot *); /* Ordinary dquot write */
255 int (*acquire_dquot) (struct dquot *); /* Quota is going to be created on disk */ 255 int (*acquire_dquot) (struct dquot *); /* Quota is going to be created on disk */
256 int (*release_dquot) (struct dquot *); /* Quota is going to be deleted from disk */ 256 int (*release_dquot) (struct dquot *); /* Quota is going to be deleted from disk */
257 int (*mark_dirty) (struct dquot *); /* Dquot is marked dirty */ 257 int (*mark_dirty) (struct dquot *); /* Dquot is marked dirty */
258 int (*write_info) (struct super_block *, int); /* Write of quota "superblock" */ 258 int (*write_info) (struct super_block *, int); /* Write of quota "superblock" */
259 }; 259 };
260 260
261 /* Operations handling requests from userspace */ 261 /* Operations handling requests from userspace */
262 struct quotactl_ops { 262 struct quotactl_ops {
263 int (*quota_on)(struct super_block *, int, int, char *); 263 int (*quota_on)(struct super_block *, int, int, char *);
264 int (*quota_off)(struct super_block *, int); 264 int (*quota_off)(struct super_block *, int);
265 int (*quota_sync)(struct super_block *, int); 265 int (*quota_sync)(struct super_block *, int);
266 int (*get_info)(struct super_block *, int, struct if_dqinfo *); 266 int (*get_info)(struct super_block *, int, struct if_dqinfo *);
267 int (*set_info)(struct super_block *, int, struct if_dqinfo *); 267 int (*set_info)(struct super_block *, int, struct if_dqinfo *);
268 int (*get_dqblk)(struct super_block *, int, qid_t, struct if_dqblk *); 268 int (*get_dqblk)(struct super_block *, int, qid_t, struct if_dqblk *);
269 int (*set_dqblk)(struct super_block *, int, qid_t, struct if_dqblk *); 269 int (*set_dqblk)(struct super_block *, int, qid_t, struct if_dqblk *);
270 int (*get_xstate)(struct super_block *, struct fs_quota_stat *); 270 int (*get_xstate)(struct super_block *, struct fs_quota_stat *);
271 int (*set_xstate)(struct super_block *, unsigned int, int); 271 int (*set_xstate)(struct super_block *, unsigned int, int);
272 int (*get_xquota)(struct super_block *, int, qid_t, struct fs_disk_quota *); 272 int (*get_xquota)(struct super_block *, int, qid_t, struct fs_disk_quota *);
273 int (*set_xquota)(struct super_block *, int, qid_t, struct fs_disk_quota *); 273 int (*set_xquota)(struct super_block *, int, qid_t, struct fs_disk_quota *);
274 }; 274 };
275 275
276 struct quota_format_type { 276 struct quota_format_type {
277 int qf_fmt_id; /* Quota format id */ 277 int qf_fmt_id; /* Quota format id */
278 struct quota_format_ops *qf_ops; /* Operations of format */ 278 struct quota_format_ops *qf_ops; /* Operations of format */
279 struct module *qf_owner; /* Module implementing quota format */ 279 struct module *qf_owner; /* Module implementing quota format */
280 struct quota_format_type *qf_next; 280 struct quota_format_type *qf_next;
281 }; 281 };
282 282
283 #define DQUOT_USR_ENABLED 0x01 /* User diskquotas enabled */ 283 #define DQUOT_USR_ENABLED 0x01 /* User diskquotas enabled */
284 #define DQUOT_GRP_ENABLED 0x02 /* Group diskquotas enabled */ 284 #define DQUOT_GRP_ENABLED 0x02 /* Group diskquotas enabled */
285 285
286 struct quota_info { 286 struct quota_info {
287 unsigned int flags; /* Flags for diskquotas on this device */ 287 unsigned int flags; /* Flags for diskquotas on this device */
288 struct mutex dqio_mutex; /* lock device while I/O in progress */ 288 struct mutex dqio_mutex; /* lock device while I/O in progress */
289 struct mutex dqonoff_mutex; /* Serialize quotaon & quotaoff */ 289 struct mutex dqonoff_mutex; /* Serialize quotaon & quotaoff */
290 struct rw_semaphore dqptr_sem; /* serialize ops using quota_info struct, pointers from inode to dquots */ 290 struct rw_semaphore dqptr_sem; /* serialize ops using quota_info struct, pointers from inode to dquots */
291 struct inode *files[MAXQUOTAS]; /* inodes of quotafiles */ 291 struct inode *files[MAXQUOTAS]; /* inodes of quotafiles */
292 struct mem_dqinfo info[MAXQUOTAS]; /* Information for each quota type */ 292 struct mem_dqinfo info[MAXQUOTAS]; /* Information for each quota type */
293 struct quota_format_ops *ops[MAXQUOTAS]; /* Operations for each type */ 293 struct quota_format_ops *ops[MAXQUOTAS]; /* Operations for each type */
294 }; 294 };
295 295
296 /* Inline would be better but we need to dereference super_block which is not defined yet */ 296 /* Inline would be better but we need to dereference super_block which is not defined yet */
297 int mark_dquot_dirty(struct dquot *dquot); 297 int mark_dquot_dirty(struct dquot *dquot);
298 298
299 #define dquot_dirty(dquot) test_bit(DQ_MOD_B, &(dquot)->dq_flags) 299 #define dquot_dirty(dquot) test_bit(DQ_MOD_B, &(dquot)->dq_flags)
300 300
301 #define sb_has_quota_enabled(sb, type) ((type)==USRQUOTA ? \ 301 #define sb_has_quota_enabled(sb, type) ((type)==USRQUOTA ? \
302 (sb_dqopt(sb)->flags & DQUOT_USR_ENABLED) : (sb_dqopt(sb)->flags & DQUOT_GRP_ENABLED)) 302 (sb_dqopt(sb)->flags & DQUOT_USR_ENABLED) : (sb_dqopt(sb)->flags & DQUOT_GRP_ENABLED))
303 303
304 #define sb_any_quota_enabled(sb) (sb_has_quota_enabled(sb, USRQUOTA) | \ 304 #define sb_any_quota_enabled(sb) (sb_has_quota_enabled(sb, USRQUOTA) | \
305 sb_has_quota_enabled(sb, GRPQUOTA)) 305 sb_has_quota_enabled(sb, GRPQUOTA))
306 306
307 int register_quota_format(struct quota_format_type *fmt); 307 int register_quota_format(struct quota_format_type *fmt);
308 void unregister_quota_format(struct quota_format_type *fmt); 308 void unregister_quota_format(struct quota_format_type *fmt);
309 309
310 struct quota_module_name { 310 struct quota_module_name {
311 int qm_fmt_id; 311 int qm_fmt_id;
312 char *qm_mod_name; 312 char *qm_mod_name;
313 }; 313 };
314 314
315 #define INIT_QUOTA_MODULE_NAMES {\ 315 #define INIT_QUOTA_MODULE_NAMES {\
316 {QFMT_VFS_OLD, "quota_v1"},\ 316 {QFMT_VFS_OLD, "quota_v1"},\
317 {QFMT_VFS_V0, "quota_v2"},\ 317 {QFMT_VFS_V0, "quota_v2"},\
318 {0, NULL}} 318 {0, NULL}}
319 319
320 #else 320 #else
321 321
322 # /* nodep */ include <sys/cdefs.h> 322 # /* nodep */ include <sys/cdefs.h>
323 323
324 __BEGIN_DECLS 324 __BEGIN_DECLS
325 long quotactl __P ((unsigned int, const char *, int, caddr_t)); 325 long quotactl __P ((unsigned int, const char *, int, caddr_t));
326 __END_DECLS 326 __END_DECLS
327 327
328 #endif /* __KERNEL__ */ 328 #endif /* __KERNEL__ */