aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/quotaops.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/quotaops.h')
-rw-r--r--include/linux/quotaops.h137
1 files changed, 106 insertions, 31 deletions
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 5110201a4159..f86702053853 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -37,11 +37,11 @@ extern int dquot_release(struct dquot *dquot);
37extern int dquot_commit_info(struct super_block *sb, int type); 37extern int dquot_commit_info(struct super_block *sb, int type);
38extern int dquot_mark_dquot_dirty(struct dquot *dquot); 38extern int dquot_mark_dquot_dirty(struct dquot *dquot);
39 39
40extern int vfs_quota_on(struct super_block *sb, int type, int format_id, char *path); 40extern int vfs_quota_on(struct super_block *sb, int type, int format_id,
41 char *path, int remount);
41extern int vfs_quota_on_mount(struct super_block *sb, char *qf_name, 42extern int vfs_quota_on_mount(struct super_block *sb, char *qf_name,
42 int format_id, int type); 43 int format_id, int type);
43extern int vfs_quota_off(struct super_block *sb, int type); 44extern int vfs_quota_off(struct super_block *sb, int type, int remount);
44#define vfs_quota_off_mount(sb, type) vfs_quota_off(sb, type)
45extern int vfs_quota_sync(struct super_block *sb, int type); 45extern int vfs_quota_sync(struct super_block *sb, int type);
46extern int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii); 46extern int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
47extern int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii); 47extern int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
@@ -59,7 +59,7 @@ extern struct quotactl_ops vfs_quotactl_ops;
59 59
60/* It is better to call this function outside of any transaction as it might 60/* It is better to call this function outside of any transaction as it might
61 * need a lot of space in journal for dquot structure allocation. */ 61 * need a lot of space in journal for dquot structure allocation. */
62static __inline__ void DQUOT_INIT(struct inode *inode) 62static inline void DQUOT_INIT(struct inode *inode)
63{ 63{
64 BUG_ON(!inode->i_sb); 64 BUG_ON(!inode->i_sb);
65 if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode)) 65 if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode))
@@ -67,7 +67,7 @@ static __inline__ void DQUOT_INIT(struct inode *inode)
67} 67}
68 68
69/* The same as with DQUOT_INIT */ 69/* The same as with DQUOT_INIT */
70static __inline__ void DQUOT_DROP(struct inode *inode) 70static inline void DQUOT_DROP(struct inode *inode)
71{ 71{
72 /* Here we can get arbitrary inode from clear_inode() so we have 72 /* Here we can get arbitrary inode from clear_inode() so we have
73 * to be careful. OTOH we don't need locking as quota operations 73 * to be careful. OTOH we don't need locking as quota operations
@@ -90,7 +90,7 @@ static __inline__ void DQUOT_DROP(struct inode *inode)
90 90
91/* The following allocation/freeing/transfer functions *must* be called inside 91/* The following allocation/freeing/transfer functions *must* be called inside
92 * a transaction (deadlocks possible otherwise) */ 92 * a transaction (deadlocks possible otherwise) */
93static __inline__ int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr) 93static inline int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
94{ 94{
95 if (sb_any_quota_enabled(inode->i_sb)) { 95 if (sb_any_quota_enabled(inode->i_sb)) {
96 /* Used space is updated in alloc_space() */ 96 /* Used space is updated in alloc_space() */
@@ -102,7 +102,7 @@ static __inline__ int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t
102 return 0; 102 return 0;
103} 103}
104 104
105static __inline__ int DQUOT_PREALLOC_SPACE(struct inode *inode, qsize_t nr) 105static inline int DQUOT_PREALLOC_SPACE(struct inode *inode, qsize_t nr)
106{ 106{
107 int ret; 107 int ret;
108 if (!(ret = DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr))) 108 if (!(ret = DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr)))
@@ -110,7 +110,7 @@ static __inline__ int DQUOT_PREALLOC_SPACE(struct inode *inode, qsize_t nr)
110 return ret; 110 return ret;
111} 111}
112 112
113static __inline__ int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr) 113static inline int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
114{ 114{
115 if (sb_any_quota_enabled(inode->i_sb)) { 115 if (sb_any_quota_enabled(inode->i_sb)) {
116 /* Used space is updated in alloc_space() */ 116 /* Used space is updated in alloc_space() */
@@ -122,7 +122,7 @@ static __inline__ int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
122 return 0; 122 return 0;
123} 123}
124 124
125static __inline__ int DQUOT_ALLOC_SPACE(struct inode *inode, qsize_t nr) 125static inline int DQUOT_ALLOC_SPACE(struct inode *inode, qsize_t nr)
126{ 126{
127 int ret; 127 int ret;
128 if (!(ret = DQUOT_ALLOC_SPACE_NODIRTY(inode, nr))) 128 if (!(ret = DQUOT_ALLOC_SPACE_NODIRTY(inode, nr)))
@@ -130,7 +130,7 @@ static __inline__ int DQUOT_ALLOC_SPACE(struct inode *inode, qsize_t nr)
130 return ret; 130 return ret;
131} 131}
132 132
133static __inline__ int DQUOT_ALLOC_INODE(struct inode *inode) 133static inline int DQUOT_ALLOC_INODE(struct inode *inode)
134{ 134{
135 if (sb_any_quota_enabled(inode->i_sb)) { 135 if (sb_any_quota_enabled(inode->i_sb)) {
136 DQUOT_INIT(inode); 136 DQUOT_INIT(inode);
@@ -140,7 +140,7 @@ static __inline__ int DQUOT_ALLOC_INODE(struct inode *inode)
140 return 0; 140 return 0;
141} 141}
142 142
143static __inline__ void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr) 143static inline void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
144{ 144{
145 if (sb_any_quota_enabled(inode->i_sb)) 145 if (sb_any_quota_enabled(inode->i_sb))
146 inode->i_sb->dq_op->free_space(inode, nr); 146 inode->i_sb->dq_op->free_space(inode, nr);
@@ -148,19 +148,19 @@ static __inline__ void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
148 inode_sub_bytes(inode, nr); 148 inode_sub_bytes(inode, nr);
149} 149}
150 150
151static __inline__ void DQUOT_FREE_SPACE(struct inode *inode, qsize_t nr) 151static inline void DQUOT_FREE_SPACE(struct inode *inode, qsize_t nr)
152{ 152{
153 DQUOT_FREE_SPACE_NODIRTY(inode, nr); 153 DQUOT_FREE_SPACE_NODIRTY(inode, nr);
154 mark_inode_dirty(inode); 154 mark_inode_dirty(inode);
155} 155}
156 156
157static __inline__ void DQUOT_FREE_INODE(struct inode *inode) 157static inline void DQUOT_FREE_INODE(struct inode *inode)
158{ 158{
159 if (sb_any_quota_enabled(inode->i_sb)) 159 if (sb_any_quota_enabled(inode->i_sb))
160 inode->i_sb->dq_op->free_inode(inode, 1); 160 inode->i_sb->dq_op->free_inode(inode, 1);
161} 161}
162 162
163static __inline__ int DQUOT_TRANSFER(struct inode *inode, struct iattr *iattr) 163static inline int DQUOT_TRANSFER(struct inode *inode, struct iattr *iattr)
164{ 164{
165 if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode)) { 165 if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode)) {
166 DQUOT_INIT(inode); 166 DQUOT_INIT(inode);
@@ -171,14 +171,32 @@ static __inline__ int DQUOT_TRANSFER(struct inode *inode, struct iattr *iattr)
171} 171}
172 172
173/* The following two functions cannot be called inside a transaction */ 173/* The following two functions cannot be called inside a transaction */
174#define DQUOT_SYNC(sb) sync_dquots(sb, -1) 174static inline void DQUOT_SYNC(struct super_block *sb)
175{
176 sync_dquots(sb, -1);
177}
175 178
176static __inline__ int DQUOT_OFF(struct super_block *sb) 179static inline int DQUOT_OFF(struct super_block *sb, int remount)
177{ 180{
178 int ret = -ENOSYS; 181 int ret = -ENOSYS;
179 182
180 if (sb_any_quota_enabled(sb) && sb->s_qcop && sb->s_qcop->quota_off) 183 if (sb->s_qcop && sb->s_qcop->quota_off)
181 ret = sb->s_qcop->quota_off(sb, -1); 184 ret = sb->s_qcop->quota_off(sb, -1, remount);
185 return ret;
186}
187
188static inline int DQUOT_ON_REMOUNT(struct super_block *sb)
189{
190 int cnt;
191 int ret = 0, err;
192
193 if (!sb->s_qcop || !sb->s_qcop->quota_on)
194 return -ENOSYS;
195 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
196 err = sb->s_qcop->quota_on(sb, cnt, 0, NULL, 1);
197 if (err < 0 && !ret)
198 ret = err;
199 }
182 return ret; 200 return ret;
183} 201}
184 202
@@ -189,13 +207,43 @@ static __inline__ int DQUOT_OFF(struct super_block *sb)
189 */ 207 */
190#define sb_dquot_ops (NULL) 208#define sb_dquot_ops (NULL)
191#define sb_quotactl_ops (NULL) 209#define sb_quotactl_ops (NULL)
192#define DQUOT_INIT(inode) do { } while(0) 210
193#define DQUOT_DROP(inode) do { } while(0) 211static inline void DQUOT_INIT(struct inode *inode)
194#define DQUOT_ALLOC_INODE(inode) (0) 212{
195#define DQUOT_FREE_INODE(inode) do { } while(0) 213}
196#define DQUOT_SYNC(sb) do { } while(0) 214
197#define DQUOT_OFF(sb) do { } while(0) 215static inline void DQUOT_DROP(struct inode *inode)
198#define DQUOT_TRANSFER(inode, iattr) (0) 216{
217}
218
219static inline int DQUOT_ALLOC_INODE(struct inode *inode)
220{
221 return 0;
222}
223
224static inline void DQUOT_FREE_INODE(struct inode *inode)
225{
226}
227
228static inline void DQUOT_SYNC(struct super_block *sb)
229{
230}
231
232static inline int DQUOT_OFF(struct super_block *sb, int remount)
233{
234 return 0;
235}
236
237static inline int DQUOT_ON_REMOUNT(struct super_block *sb)
238{
239 return 0;
240}
241
242static inline int DQUOT_TRANSFER(struct inode *inode, struct iattr *iattr)
243{
244 return 0;
245}
246
199static inline int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr) 247static inline int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
200{ 248{
201 inode_add_bytes(inode, nr); 249 inode_add_bytes(inode, nr);
@@ -235,11 +283,38 @@ static inline void DQUOT_FREE_SPACE(struct inode *inode, qsize_t nr)
235 283
236#endif /* CONFIG_QUOTA */ 284#endif /* CONFIG_QUOTA */
237 285
238#define DQUOT_PREALLOC_BLOCK_NODIRTY(inode, nr) DQUOT_PREALLOC_SPACE_NODIRTY(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits) 286static inline int DQUOT_PREALLOC_BLOCK_NODIRTY(struct inode *inode, qsize_t nr)
239#define DQUOT_PREALLOC_BLOCK(inode, nr) DQUOT_PREALLOC_SPACE(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits) 287{
240#define DQUOT_ALLOC_BLOCK_NODIRTY(inode, nr) DQUOT_ALLOC_SPACE_NODIRTY(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits) 288 return DQUOT_PREALLOC_SPACE_NODIRTY(inode,
241#define DQUOT_ALLOC_BLOCK(inode, nr) DQUOT_ALLOC_SPACE(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits) 289 nr << inode->i_sb->s_blocksize_bits);
242#define DQUOT_FREE_BLOCK_NODIRTY(inode, nr) DQUOT_FREE_SPACE_NODIRTY(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits) 290}
243#define DQUOT_FREE_BLOCK(inode, nr) DQUOT_FREE_SPACE(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits) 291
292static inline int DQUOT_PREALLOC_BLOCK(struct inode *inode, qsize_t nr)
293{
294 return DQUOT_PREALLOC_SPACE(inode,
295 nr << inode->i_sb->s_blocksize_bits);
296}
297
298static inline int DQUOT_ALLOC_BLOCK_NODIRTY(struct inode *inode, qsize_t nr)
299{
300 return DQUOT_ALLOC_SPACE_NODIRTY(inode,
301 nr << inode->i_sb->s_blocksize_bits);
302}
303
304static inline int DQUOT_ALLOC_BLOCK(struct inode *inode, qsize_t nr)
305{
306 return DQUOT_ALLOC_SPACE(inode,
307 nr << inode->i_sb->s_blocksize_bits);
308}
309
310static inline void DQUOT_FREE_BLOCK_NODIRTY(struct inode *inode, qsize_t nr)
311{
312 DQUOT_FREE_SPACE_NODIRTY(inode, nr << inode->i_sb->s_blocksize_bits);
313}
314
315static inline void DQUOT_FREE_BLOCK(struct inode *inode, qsize_t nr)
316{
317 DQUOT_FREE_SPACE(inode, nr << inode->i_sb->s_blocksize_bits);
318}
244 319
245#endif /* _LINUX_QUOTAOPS_ */ 320#endif /* _LINUX_QUOTAOPS_ */