Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Definitions for diskquota-operations. When diskquota is configured these |
| 3 | * macros expand to the right source-code. |
| 4 | * |
| 5 | * Author: Marco van Wieringen <mvw@planets.elm.net> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | */ |
| 7 | #ifndef _LINUX_QUOTAOPS_ |
| 8 | #define _LINUX_QUOTAOPS_ |
| 9 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | #include <linux/fs.h> |
| 11 | |
Eric Sandeen | 56246f9 | 2010-05-16 09:00:00 -0400 | [diff] [blame] | 12 | #define DQUOT_SPACE_WARN 0x1 |
| 13 | #define DQUOT_SPACE_RESERVE 0x2 |
Eric Sandeen | 0e05842 | 2010-05-16 10:00:00 -0400 | [diff] [blame] | 14 | #define DQUOT_SPACE_NOFAIL 0x4 |
Eric Sandeen | 56246f9 | 2010-05-16 09:00:00 -0400 | [diff] [blame] | 15 | |
Jan Kara | 03b0634 | 2008-07-25 01:46:52 -0700 | [diff] [blame] | 16 | static inline struct quota_info *sb_dqopt(struct super_block *sb) |
| 17 | { |
| 18 | return &sb->s_dquot; |
| 19 | } |
Jan Kara | 74abb98 | 2008-07-25 01:46:51 -0700 | [diff] [blame] | 20 | |
Dmitry Monakhov | 1275562 | 2010-04-08 22:04:20 +0400 | [diff] [blame] | 21 | /* i_mutex must being held */ |
| 22 | static inline bool is_quota_modification(struct inode *inode, struct iattr *ia) |
| 23 | { |
| 24 | return (ia->ia_valid & ATTR_SIZE && ia->ia_size != inode->i_size) || |
Eric W. Biederman | 8e96e3b | 2012-03-03 21:17:15 -0800 | [diff] [blame^] | 25 | (ia->ia_valid & ATTR_UID && !uid_eq(ia->ia_uid, inode->i_uid)) || |
| 26 | (ia->ia_valid & ATTR_GID && !gid_eq(ia->ia_gid, inode->i_gid)); |
Dmitry Monakhov | 1275562 | 2010-04-08 22:04:20 +0400 | [diff] [blame] | 27 | } |
| 28 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #if defined(CONFIG_QUOTA) |
| 30 | |
Jiaying Zhang | fb5ffb0 | 2010-07-20 16:54:43 +0200 | [diff] [blame] | 31 | #define quota_error(sb, fmt, args...) \ |
| 32 | __quota_error((sb), __func__, fmt , ## args) |
| 33 | |
Joe Perches | b9075fa | 2011-10-31 17:11:33 -0700 | [diff] [blame] | 34 | extern __printf(3, 4) |
Joe Perches | 055adcb | 2010-11-23 18:49:54 -0800 | [diff] [blame] | 35 | void __quota_error(struct super_block *sb, const char *func, |
| 36 | const char *fmt, ...); |
Jiaying Zhang | fb5ffb0 | 2010-07-20 16:54:43 +0200 | [diff] [blame] | 37 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | /* |
| 39 | * declaration of quota_function calls in kernel. |
| 40 | */ |
Dmitry Monakhov | c469070 | 2010-02-09 17:53:36 +0100 | [diff] [blame] | 41 | void inode_add_rsv_space(struct inode *inode, qsize_t number); |
| 42 | void inode_claim_rsv_space(struct inode *inode, qsize_t number); |
| 43 | void inode_sub_rsv_space(struct inode *inode, qsize_t number); |
| 44 | |
Christoph Hellwig | 871a293 | 2010-03-03 09:05:07 -0500 | [diff] [blame] | 45 | void dquot_initialize(struct inode *inode); |
Christoph Hellwig | 9f75475 | 2010-03-03 09:05:05 -0500 | [diff] [blame] | 46 | void dquot_drop(struct inode *inode); |
Jan Kara | 3d9ea25 | 2008-10-10 16:12:23 +0200 | [diff] [blame] | 47 | struct dquot *dqget(struct super_block *sb, unsigned int id, int type); |
| 48 | void dqput(struct dquot *dquot); |
Jan Kara | 12c7752 | 2008-10-20 17:05:00 +0200 | [diff] [blame] | 49 | int dquot_scan_active(struct super_block *sb, |
| 50 | int (*fn)(struct dquot *dquot, unsigned long priv), |
| 51 | unsigned long priv); |
Jan Kara | 7d9056b | 2008-11-25 15:31:32 +0100 | [diff] [blame] | 52 | struct dquot *dquot_alloc(struct super_block *sb, int type); |
| 53 | void dquot_destroy(struct dquot *dquot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | |
Eric Sandeen | 56246f9 | 2010-05-16 09:00:00 -0400 | [diff] [blame] | 55 | int __dquot_alloc_space(struct inode *inode, qsize_t number, int flags); |
| 56 | void __dquot_free_space(struct inode *inode, qsize_t number, int flags); |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 57 | |
Christoph Hellwig | 63936dd | 2010-03-03 09:05:01 -0500 | [diff] [blame] | 58 | int dquot_alloc_inode(const struct inode *inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 60 | int dquot_claim_space_nodirty(struct inode *inode, qsize_t number); |
Christoph Hellwig | 63936dd | 2010-03-03 09:05:01 -0500 | [diff] [blame] | 61 | void dquot_free_inode(const struct inode *inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | |
Christoph Hellwig | 0f0dd62 | 2010-05-19 07:16:41 -0400 | [diff] [blame] | 63 | int dquot_disable(struct super_block *sb, int type, unsigned int flags); |
| 64 | /* Suspend quotas on remount RO */ |
| 65 | static inline int dquot_suspend(struct super_block *sb, int type) |
| 66 | { |
| 67 | return dquot_disable(sb, type, DQUOT_SUSPENDED); |
| 68 | } |
| 69 | int dquot_resume(struct super_block *sb, int type); |
| 70 | |
Jan Kara | b85f4b8 | 2008-07-25 01:46:50 -0700 | [diff] [blame] | 71 | int dquot_commit(struct dquot *dquot); |
| 72 | int dquot_acquire(struct dquot *dquot); |
| 73 | int dquot_release(struct dquot *dquot); |
| 74 | int dquot_commit_info(struct super_block *sb, int type); |
| 75 | int dquot_mark_dquot_dirty(struct dquot *dquot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | |
Christoph Hellwig | 907f455 | 2010-03-03 09:05:06 -0500 | [diff] [blame] | 77 | int dquot_file_open(struct inode *inode, struct file *file); |
| 78 | |
Christoph Hellwig | 287a809 | 2010-05-19 07:16:45 -0400 | [diff] [blame] | 79 | int dquot_enable(struct inode *inode, int type, int format_id, |
Jan Kara | f55abc0 | 2008-08-20 17:50:32 +0200 | [diff] [blame] | 80 | unsigned int flags); |
Jan Kara | f00c9e4 | 2010-09-15 17:38:58 +0200 | [diff] [blame] | 81 | int dquot_quota_on(struct super_block *sb, int type, int format_id, |
Al Viro | 77e69da | 2008-08-01 04:29:18 -0400 | [diff] [blame] | 82 | struct path *path); |
Christoph Hellwig | 287a809 | 2010-05-19 07:16:45 -0400 | [diff] [blame] | 83 | int dquot_quota_on_mount(struct super_block *sb, char *qf_name, |
Jan Kara | b85f4b8 | 2008-07-25 01:46:50 -0700 | [diff] [blame] | 84 | int format_id, int type); |
Christoph Hellwig | 287a809 | 2010-05-19 07:16:45 -0400 | [diff] [blame] | 85 | int dquot_quota_off(struct super_block *sb, int type); |
| 86 | int dquot_quota_sync(struct super_block *sb, int type, int wait); |
| 87 | int dquot_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii); |
| 88 | int dquot_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii); |
| 89 | int dquot_get_dqblk(struct super_block *sb, int type, qid_t id, |
Christoph Hellwig | b9b2dd3 | 2010-05-06 17:04:58 -0400 | [diff] [blame] | 90 | struct fs_disk_quota *di); |
Christoph Hellwig | 287a809 | 2010-05-19 07:16:45 -0400 | [diff] [blame] | 91 | int dquot_set_dqblk(struct super_block *sb, int type, qid_t id, |
Christoph Hellwig | c472b43 | 2010-05-06 17:05:17 -0400 | [diff] [blame] | 92 | struct fs_disk_quota *di); |
Jan Kara | b85f4b8 | 2008-07-25 01:46:50 -0700 | [diff] [blame] | 93 | |
Jan Kara | bc8e5f0 | 2010-05-13 19:58:50 +0200 | [diff] [blame] | 94 | int __dquot_transfer(struct inode *inode, struct dquot **transfer_to); |
Christoph Hellwig | b43fa82 | 2010-03-03 09:05:03 -0500 | [diff] [blame] | 95 | int dquot_transfer(struct inode *inode, struct iattr *iattr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | |
Jan Kara | 03b0634 | 2008-07-25 01:46:52 -0700 | [diff] [blame] | 97 | static inline struct mem_dqinfo *sb_dqinfo(struct super_block *sb, int type) |
| 98 | { |
| 99 | return sb_dqopt(sb)->info + type; |
| 100 | } |
Jan Kara | 74abb98 | 2008-07-25 01:46:51 -0700 | [diff] [blame] | 101 | |
| 102 | /* |
| 103 | * Functions for checking status of quota |
| 104 | */ |
| 105 | |
Dmitry Monakhov | ad1e6e8 | 2010-02-16 08:31:49 +0300 | [diff] [blame] | 106 | static inline bool sb_has_quota_usage_enabled(struct super_block *sb, int type) |
Jan Kara | 03b0634 | 2008-07-25 01:46:52 -0700 | [diff] [blame] | 107 | { |
Jan Kara | f55abc0 | 2008-08-20 17:50:32 +0200 | [diff] [blame] | 108 | return sb_dqopt(sb)->flags & |
| 109 | dquot_state_flag(DQUOT_USAGE_ENABLED, type); |
Jan Kara | 03b0634 | 2008-07-25 01:46:52 -0700 | [diff] [blame] | 110 | } |
Jan Kara | 74abb98 | 2008-07-25 01:46:51 -0700 | [diff] [blame] | 111 | |
Dmitry Monakhov | ad1e6e8 | 2010-02-16 08:31:49 +0300 | [diff] [blame] | 112 | static inline bool sb_has_quota_limits_enabled(struct super_block *sb, int type) |
Jan Kara | 03b0634 | 2008-07-25 01:46:52 -0700 | [diff] [blame] | 113 | { |
Jan Kara | f55abc0 | 2008-08-20 17:50:32 +0200 | [diff] [blame] | 114 | return sb_dqopt(sb)->flags & |
| 115 | dquot_state_flag(DQUOT_LIMITS_ENABLED, type); |
Jan Kara | 03b0634 | 2008-07-25 01:46:52 -0700 | [diff] [blame] | 116 | } |
Jan Kara | 74abb98 | 2008-07-25 01:46:51 -0700 | [diff] [blame] | 117 | |
Dmitry Monakhov | ad1e6e8 | 2010-02-16 08:31:49 +0300 | [diff] [blame] | 118 | static inline bool sb_has_quota_suspended(struct super_block *sb, int type) |
Jan Kara | 03b0634 | 2008-07-25 01:46:52 -0700 | [diff] [blame] | 119 | { |
Jan Kara | f55abc0 | 2008-08-20 17:50:32 +0200 | [diff] [blame] | 120 | return sb_dqopt(sb)->flags & |
| 121 | dquot_state_flag(DQUOT_SUSPENDED, type); |
Jan Kara | 03b0634 | 2008-07-25 01:46:52 -0700 | [diff] [blame] | 122 | } |
Jan Kara | 74abb98 | 2008-07-25 01:46:51 -0700 | [diff] [blame] | 123 | |
Dmitry Monakhov | ad1e6e8 | 2010-02-16 08:31:49 +0300 | [diff] [blame] | 124 | static inline unsigned sb_any_quota_suspended(struct super_block *sb) |
Jan Kara | 03b0634 | 2008-07-25 01:46:52 -0700 | [diff] [blame] | 125 | { |
Dmitry Monakhov | ad1e6e8 | 2010-02-16 08:31:49 +0300 | [diff] [blame] | 126 | unsigned type, tmsk = 0; |
| 127 | for (type = 0; type < MAXQUOTAS; type++) |
| 128 | tmsk |= sb_has_quota_suspended(sb, type) << type; |
| 129 | return tmsk; |
Jan Kara | 03b0634 | 2008-07-25 01:46:52 -0700 | [diff] [blame] | 130 | } |
Jan Kara | 74abb98 | 2008-07-25 01:46:51 -0700 | [diff] [blame] | 131 | |
Jan Kara | f55abc0 | 2008-08-20 17:50:32 +0200 | [diff] [blame] | 132 | /* Does kernel know about any quota information for given sb + type? */ |
Dmitry Monakhov | ad1e6e8 | 2010-02-16 08:31:49 +0300 | [diff] [blame] | 133 | static inline bool sb_has_quota_loaded(struct super_block *sb, int type) |
Jan Kara | f55abc0 | 2008-08-20 17:50:32 +0200 | [diff] [blame] | 134 | { |
| 135 | /* Currently if anything is on, then quota usage is on as well */ |
| 136 | return sb_has_quota_usage_enabled(sb, type); |
| 137 | } |
| 138 | |
Dmitry Monakhov | ad1e6e8 | 2010-02-16 08:31:49 +0300 | [diff] [blame] | 139 | static inline unsigned sb_any_quota_loaded(struct super_block *sb) |
Jan Kara | f55abc0 | 2008-08-20 17:50:32 +0200 | [diff] [blame] | 140 | { |
Dmitry Monakhov | ad1e6e8 | 2010-02-16 08:31:49 +0300 | [diff] [blame] | 141 | unsigned type, tmsk = 0; |
| 142 | for (type = 0; type < MAXQUOTAS; type++) |
| 143 | tmsk |= sb_has_quota_loaded(sb, type) << type; |
| 144 | return tmsk; |
Jan Kara | f55abc0 | 2008-08-20 17:50:32 +0200 | [diff] [blame] | 145 | } |
| 146 | |
Dmitry Monakhov | ad1e6e8 | 2010-02-16 08:31:49 +0300 | [diff] [blame] | 147 | static inline bool sb_has_quota_active(struct super_block *sb, int type) |
Jan Kara | f55abc0 | 2008-08-20 17:50:32 +0200 | [diff] [blame] | 148 | { |
| 149 | return sb_has_quota_loaded(sb, type) && |
| 150 | !sb_has_quota_suspended(sb, type); |
| 151 | } |
| 152 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | /* |
| 154 | * Operations supported for diskquotas. |
| 155 | */ |
Alexey Dobriyan | 61e225d | 2009-09-21 17:01:08 -0700 | [diff] [blame] | 156 | extern const struct dquot_operations dquot_operations; |
Christoph Hellwig | 287a809 | 2010-05-19 07:16:45 -0400 | [diff] [blame] | 157 | extern const struct quotactl_ops dquot_quotactl_ops; |
Jan Kara | 0ff5af8 | 2008-04-28 02:14:33 -0700 | [diff] [blame] | 158 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | #else |
| 160 | |
Jan Kara | f55abc0 | 2008-08-20 17:50:32 +0200 | [diff] [blame] | 161 | static inline int sb_has_quota_usage_enabled(struct super_block *sb, int type) |
Jan Kara | 03b0634 | 2008-07-25 01:46:52 -0700 | [diff] [blame] | 162 | { |
| 163 | return 0; |
| 164 | } |
| 165 | |
Jan Kara | f55abc0 | 2008-08-20 17:50:32 +0200 | [diff] [blame] | 166 | static inline int sb_has_quota_limits_enabled(struct super_block *sb, int type) |
Jan Kara | 03b0634 | 2008-07-25 01:46:52 -0700 | [diff] [blame] | 167 | { |
| 168 | return 0; |
| 169 | } |
| 170 | |
| 171 | static inline int sb_has_quota_suspended(struct super_block *sb, int type) |
| 172 | { |
| 173 | return 0; |
| 174 | } |
| 175 | |
| 176 | static inline int sb_any_quota_suspended(struct super_block *sb) |
| 177 | { |
| 178 | return 0; |
| 179 | } |
Jan Kara | 74abb98 | 2008-07-25 01:46:51 -0700 | [diff] [blame] | 180 | |
Jan Kara | f55abc0 | 2008-08-20 17:50:32 +0200 | [diff] [blame] | 181 | /* Does kernel know about any quota information for given sb + type? */ |
| 182 | static inline int sb_has_quota_loaded(struct super_block *sb, int type) |
| 183 | { |
| 184 | return 0; |
| 185 | } |
| 186 | |
| 187 | static inline int sb_any_quota_loaded(struct super_block *sb) |
| 188 | { |
| 189 | return 0; |
| 190 | } |
| 191 | |
| 192 | static inline int sb_has_quota_active(struct super_block *sb, int type) |
| 193 | { |
| 194 | return 0; |
| 195 | } |
| 196 | |
Christoph Hellwig | 871a293 | 2010-03-03 09:05:07 -0500 | [diff] [blame] | 197 | static inline void dquot_initialize(struct inode *inode) |
Andrew Morton | 50f8c37 | 2008-04-28 02:14:35 -0700 | [diff] [blame] | 198 | { |
| 199 | } |
| 200 | |
Christoph Hellwig | 9f75475 | 2010-03-03 09:05:05 -0500 | [diff] [blame] | 201 | static inline void dquot_drop(struct inode *inode) |
Andrew Morton | 50f8c37 | 2008-04-28 02:14:35 -0700 | [diff] [blame] | 202 | { |
| 203 | } |
| 204 | |
Christoph Hellwig | 63936dd | 2010-03-03 09:05:01 -0500 | [diff] [blame] | 205 | static inline int dquot_alloc_inode(const struct inode *inode) |
Andrew Morton | 50f8c37 | 2008-04-28 02:14:35 -0700 | [diff] [blame] | 206 | { |
| 207 | return 0; |
| 208 | } |
| 209 | |
Christoph Hellwig | 63936dd | 2010-03-03 09:05:01 -0500 | [diff] [blame] | 210 | static inline void dquot_free_inode(const struct inode *inode) |
Andrew Morton | 50f8c37 | 2008-04-28 02:14:35 -0700 | [diff] [blame] | 211 | { |
| 212 | } |
| 213 | |
Christoph Hellwig | b43fa82 | 2010-03-03 09:05:03 -0500 | [diff] [blame] | 214 | static inline int dquot_transfer(struct inode *inode, struct iattr *iattr) |
Andrew Morton | 50f8c37 | 2008-04-28 02:14:35 -0700 | [diff] [blame] | 215 | { |
| 216 | return 0; |
| 217 | } |
| 218 | |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 219 | static inline int __dquot_alloc_space(struct inode *inode, qsize_t number, |
Eric Sandeen | 56246f9 | 2010-05-16 09:00:00 -0400 | [diff] [blame] | 220 | int flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | { |
Eric Sandeen | 56246f9 | 2010-05-16 09:00:00 -0400 | [diff] [blame] | 222 | if (!(flags & DQUOT_SPACE_RESERVE)) |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 223 | inode_add_bytes(inode, number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | return 0; |
| 225 | } |
| 226 | |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 227 | static inline void __dquot_free_space(struct inode *inode, qsize_t number, |
Eric Sandeen | 56246f9 | 2010-05-16 09:00:00 -0400 | [diff] [blame] | 228 | int flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | { |
Eric Sandeen | 56246f9 | 2010-05-16 09:00:00 -0400 | [diff] [blame] | 230 | if (!(flags & DQUOT_SPACE_RESERVE)) |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 231 | inode_sub_bytes(inode, number); |
| 232 | } |
| 233 | |
| 234 | static inline int dquot_claim_space_nodirty(struct inode *inode, qsize_t number) |
| 235 | { |
| 236 | inode_add_bytes(inode, number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | return 0; |
| 238 | } |
| 239 | |
Christoph Hellwig | 0f0dd62 | 2010-05-19 07:16:41 -0400 | [diff] [blame] | 240 | static inline int dquot_disable(struct super_block *sb, int type, |
| 241 | unsigned int flags) |
| 242 | { |
| 243 | return 0; |
| 244 | } |
| 245 | |
| 246 | static inline int dquot_suspend(struct super_block *sb, int type) |
| 247 | { |
| 248 | return 0; |
| 249 | } |
| 250 | |
| 251 | static inline int dquot_resume(struct super_block *sb, int type) |
| 252 | { |
| 253 | return 0; |
| 254 | } |
| 255 | |
Christoph Hellwig | 871a293 | 2010-03-03 09:05:07 -0500 | [diff] [blame] | 256 | #define dquot_file_open generic_file_open |
| 257 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | #endif /* CONFIG_QUOTA */ |
| 259 | |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 260 | static inline int dquot_alloc_space_nodirty(struct inode *inode, qsize_t nr) |
Jan Kara | 03f6e92 | 2008-04-28 02:14:32 -0700 | [diff] [blame] | 261 | { |
Eric Sandeen | 56246f9 | 2010-05-16 09:00:00 -0400 | [diff] [blame] | 262 | return __dquot_alloc_space(inode, nr, DQUOT_SPACE_WARN); |
Jan Kara | 03f6e92 | 2008-04-28 02:14:32 -0700 | [diff] [blame] | 263 | } |
| 264 | |
Eric Sandeen | 0e05842 | 2010-05-16 10:00:00 -0400 | [diff] [blame] | 265 | static inline void dquot_alloc_space_nofail(struct inode *inode, qsize_t nr) |
| 266 | { |
| 267 | __dquot_alloc_space(inode, nr, DQUOT_SPACE_WARN|DQUOT_SPACE_NOFAIL); |
Jan Kara | 43d2932 | 2010-07-21 14:22:21 +0200 | [diff] [blame] | 268 | mark_inode_dirty_sync(inode); |
Jan Kara | 03f6e92 | 2008-04-28 02:14:32 -0700 | [diff] [blame] | 269 | } |
| 270 | |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 271 | static inline int dquot_alloc_space(struct inode *inode, qsize_t nr) |
Jan Kara | 03f6e92 | 2008-04-28 02:14:32 -0700 | [diff] [blame] | 272 | { |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 273 | int ret; |
| 274 | |
| 275 | ret = dquot_alloc_space_nodirty(inode, nr); |
Shaohua Li | d530148 | 2010-08-20 16:49:43 +0800 | [diff] [blame] | 276 | if (!ret) { |
| 277 | /* |
| 278 | * Mark inode fully dirty. Since we are allocating blocks, inode |
| 279 | * would become fully dirty soon anyway and it reportedly |
Dave Chinner | 250df6e | 2011-03-22 22:23:36 +1100 | [diff] [blame] | 280 | * reduces lock contention. |
Shaohua Li | d530148 | 2010-08-20 16:49:43 +0800 | [diff] [blame] | 281 | */ |
| 282 | mark_inode_dirty(inode); |
| 283 | } |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 284 | return ret; |
Jan Kara | 03f6e92 | 2008-04-28 02:14:32 -0700 | [diff] [blame] | 285 | } |
| 286 | |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 287 | static inline int dquot_alloc_block_nodirty(struct inode *inode, qsize_t nr) |
Jan Kara | 03f6e92 | 2008-04-28 02:14:32 -0700 | [diff] [blame] | 288 | { |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 289 | return dquot_alloc_space_nodirty(inode, nr << inode->i_blkbits); |
Jan Kara | 03f6e92 | 2008-04-28 02:14:32 -0700 | [diff] [blame] | 290 | } |
| 291 | |
Eric Sandeen | 0e05842 | 2010-05-16 10:00:00 -0400 | [diff] [blame] | 292 | static inline void dquot_alloc_block_nofail(struct inode *inode, qsize_t nr) |
| 293 | { |
| 294 | dquot_alloc_space_nofail(inode, nr << inode->i_blkbits); |
| 295 | } |
| 296 | |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 297 | static inline int dquot_alloc_block(struct inode *inode, qsize_t nr) |
Jan Kara | 03f6e92 | 2008-04-28 02:14:32 -0700 | [diff] [blame] | 298 | { |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 299 | return dquot_alloc_space(inode, nr << inode->i_blkbits); |
Jan Kara | 03f6e92 | 2008-04-28 02:14:32 -0700 | [diff] [blame] | 300 | } |
| 301 | |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 302 | static inline int dquot_prealloc_block_nodirty(struct inode *inode, qsize_t nr) |
Mingming Cao | f18df22 | 2009-01-13 16:43:09 +0100 | [diff] [blame] | 303 | { |
Eric Sandeen | 56246f9 | 2010-05-16 09:00:00 -0400 | [diff] [blame] | 304 | return __dquot_alloc_space(inode, nr << inode->i_blkbits, 0); |
Mingming Cao | f18df22 | 2009-01-13 16:43:09 +0100 | [diff] [blame] | 305 | } |
| 306 | |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 307 | static inline int dquot_prealloc_block(struct inode *inode, qsize_t nr) |
Mingming Cao | 740d9dc | 2009-01-13 16:43:14 +0100 | [diff] [blame] | 308 | { |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 309 | int ret; |
| 310 | |
| 311 | ret = dquot_prealloc_block_nodirty(inode, nr); |
| 312 | if (!ret) |
Jan Kara | 43d2932 | 2010-07-21 14:22:21 +0200 | [diff] [blame] | 313 | mark_inode_dirty_sync(inode); |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 314 | return ret; |
Mingming Cao | 740d9dc | 2009-01-13 16:43:14 +0100 | [diff] [blame] | 315 | } |
| 316 | |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 317 | static inline int dquot_reserve_block(struct inode *inode, qsize_t nr) |
Mingming Cao | 740d9dc | 2009-01-13 16:43:14 +0100 | [diff] [blame] | 318 | { |
Eric Sandeen | 56246f9 | 2010-05-16 09:00:00 -0400 | [diff] [blame] | 319 | return __dquot_alloc_space(inode, nr << inode->i_blkbits, |
| 320 | DQUOT_SPACE_WARN|DQUOT_SPACE_RESERVE); |
Mingming Cao | 740d9dc | 2009-01-13 16:43:14 +0100 | [diff] [blame] | 321 | } |
| 322 | |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 323 | static inline int dquot_claim_block(struct inode *inode, qsize_t nr) |
Jan Kara | 03f6e92 | 2008-04-28 02:14:32 -0700 | [diff] [blame] | 324 | { |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 325 | int ret; |
| 326 | |
| 327 | ret = dquot_claim_space_nodirty(inode, nr << inode->i_blkbits); |
| 328 | if (!ret) |
Jan Kara | 43d2932 | 2010-07-21 14:22:21 +0200 | [diff] [blame] | 329 | mark_inode_dirty_sync(inode); |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 330 | return ret; |
Jan Kara | 03f6e92 | 2008-04-28 02:14:32 -0700 | [diff] [blame] | 331 | } |
| 332 | |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 333 | static inline void dquot_free_space_nodirty(struct inode *inode, qsize_t nr) |
Jan Kara | 03f6e92 | 2008-04-28 02:14:32 -0700 | [diff] [blame] | 334 | { |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 335 | __dquot_free_space(inode, nr, 0); |
| 336 | } |
| 337 | |
| 338 | static inline void dquot_free_space(struct inode *inode, qsize_t nr) |
| 339 | { |
| 340 | dquot_free_space_nodirty(inode, nr); |
Jan Kara | 43d2932 | 2010-07-21 14:22:21 +0200 | [diff] [blame] | 341 | mark_inode_dirty_sync(inode); |
Christoph Hellwig | 5dd4056 | 2010-03-03 09:05:00 -0500 | [diff] [blame] | 342 | } |
| 343 | |
| 344 | static inline void dquot_free_block_nodirty(struct inode *inode, qsize_t nr) |
| 345 | { |
| 346 | dquot_free_space_nodirty(inode, nr << inode->i_blkbits); |
| 347 | } |
| 348 | |
| 349 | static inline void dquot_free_block(struct inode *inode, qsize_t nr) |
| 350 | { |
| 351 | dquot_free_space(inode, nr << inode->i_blkbits); |
| 352 | } |
| 353 | |
| 354 | static inline void dquot_release_reservation_block(struct inode *inode, |
| 355 | qsize_t nr) |
| 356 | { |
Eric Sandeen | 56246f9 | 2010-05-16 09:00:00 -0400 | [diff] [blame] | 357 | __dquot_free_space(inode, nr << inode->i_blkbits, DQUOT_SPACE_RESERVE); |
Jan Kara | 03f6e92 | 2008-04-28 02:14:32 -0700 | [diff] [blame] | 358 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | #endif /* _LINUX_QUOTAOPS_ */ |