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[/] [or1k/] [tags/] [LINUX_2_4_26_OR32/] [linux/] [linux-2.4/] [include/] [linux/] [quotaops.h] - Blame information for rev 1765

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/*
 * Definitions for diskquota-operations. When diskquota is configured these
 * macros expand to the right source-code.
 *
 * Author:  Marco van Wieringen <mvw@planets.elm.net>
 *
 * Version: $Id: quotaops.h,v 1.1.1.1 2004-04-15 02:35:06 phoenix Exp $
 *
 */
#ifndef _LINUX_QUOTAOPS_
#define _LINUX_QUOTAOPS_
 
#include <linux/config.h>
#include <linux/smp_lock.h>
 
#if defined(CONFIG_QUOTA)
 
#include <linux/fs.h>
 
/*
 * declaration of quota_function calls in kernel.
 */
extern void sync_dquots_dev(kdev_t dev, int type);
extern void sync_dquots_sb(struct super_block *sb, int type);
 
extern void dquot_initialize(struct inode *inode, int type);
extern void dquot_drop(struct inode *inode);
 
extern int  dquot_alloc_space(struct inode *inode, qsize_t number, int prealloc);
extern int  dquot_alloc_inode(const struct inode *inode, unsigned long number);
 
extern void dquot_free_space(struct inode *inode, qsize_t number);
extern void dquot_free_inode(const struct inode *inode, unsigned long number);
 
extern int  dquot_transfer(struct inode *inode, struct iattr *iattr);
 
/*
 * Operations supported for diskquotas.
 */
extern struct dquot_operations dquot_operations;
extern struct quotactl_ops vfs_quotactl_ops;
 
#define sb_dquot_ops (&dquot_operations)
#define sb_quotactl_ops (&vfs_quotactl_ops)
 
static __inline__ void DQUOT_INIT(struct inode *inode)
{
        if (!inode->i_sb)
                out_of_line_bug();
        lock_kernel();
        if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode))
                inode->i_sb->dq_op->initialize(inode, -1);
        unlock_kernel();
}
 
static __inline__ void DQUOT_DROP(struct inode *inode)
{
        lock_kernel();
        if (IS_QUOTAINIT(inode)) {
                if (!inode->i_sb)
                        out_of_line_bug();
                inode->i_sb->dq_op->drop(inode);        /* Ops must be set when there's any quota... */
        }
        unlock_kernel();
}
 
static __inline__ int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
{
        lock_kernel();
        if (sb_any_quota_enabled(inode->i_sb)) {
                /* Used space is updated in alloc_space() */
                if (inode->i_sb->dq_op->alloc_space(inode, nr, 1) == NO_QUOTA) {
                        unlock_kernel();
                        return 1;
                }
        }
        else
                inode_add_bytes(inode, nr);
        unlock_kernel();
        return 0;
}
 
static __inline__ int DQUOT_PREALLOC_SPACE(struct inode *inode, qsize_t nr)
{
        int ret;
        if (!(ret =  DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr)))
                mark_inode_dirty(inode);
        return ret;
}
 
static __inline__ int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
{
        lock_kernel();
        if (sb_any_quota_enabled(inode->i_sb)) {
                /* Used space is updated in alloc_space() */
                if (inode->i_sb->dq_op->alloc_space(inode, nr, 0) == NO_QUOTA) {
                        unlock_kernel();
                        return 1;
                }
        }
        else
                inode_add_bytes(inode, nr);
        unlock_kernel();
        return 0;
}
 
static __inline__ int DQUOT_ALLOC_SPACE(struct inode *inode, qsize_t nr)
{
        int ret;
        if (!(ret = DQUOT_ALLOC_SPACE_NODIRTY(inode, nr)))
                mark_inode_dirty(inode);
        return ret;
}
 
static __inline__ int DQUOT_ALLOC_INODE(struct inode *inode)
{
        lock_kernel();
        if (sb_any_quota_enabled(inode->i_sb)) {
                DQUOT_INIT(inode);
                if (inode->i_sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA) {
                        unlock_kernel();
                        return 1;
                }
        }
        unlock_kernel();
        return 0;
}
 
static __inline__ void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
{
        lock_kernel();
        if (sb_any_quota_enabled(inode->i_sb))
                inode->i_sb->dq_op->free_space(inode, nr);
        else
                inode_sub_bytes(inode, nr);
        unlock_kernel();
}
 
static __inline__ void DQUOT_FREE_SPACE(struct inode *inode, qsize_t nr)
{
        DQUOT_FREE_SPACE_NODIRTY(inode, nr);
        mark_inode_dirty(inode);
}
 
static __inline__ void DQUOT_FREE_INODE(struct inode *inode)
{
        lock_kernel();
        if (sb_any_quota_enabled(inode->i_sb))
                inode->i_sb->dq_op->free_inode(inode, 1);
        unlock_kernel();
}
 
static __inline__ int DQUOT_TRANSFER(struct inode *inode, struct iattr *iattr)
{
        lock_kernel();
        if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode)) {
                DQUOT_INIT(inode);
                if (inode->i_sb->dq_op->transfer(inode, iattr) == NO_QUOTA) {
                        unlock_kernel();
                        return 1;
                }
        }
        unlock_kernel();
        return 0;
}
 
#define DQUOT_SYNC_DEV(dev)     sync_dquots_dev(dev, -1)
#define DQUOT_SYNC_SB(sb)       sync_dquots_sb(sb, -1)
 
static __inline__ int DQUOT_OFF(struct super_block *sb)
{
        int ret = -ENOSYS;
 
        lock_kernel();
        if (sb->s_qcop && sb->s_qcop->quota_off)
                ret = sb->s_qcop->quota_off(sb, -1);
        unlock_kernel();
        return ret;
}
 
#else
 
/*
 * NO-OP when quota not configured.
 */
#define sb_dquot_ops                            (NULL)
#define sb_quotactl_ops                         (NULL)
#define sync_dquots_dev(dev, type)              do { } while(0)
#define DQUOT_INIT(inode)                       do { } while(0)
#define DQUOT_DROP(inode)                       do { } while(0)
#define DQUOT_ALLOC_INODE(inode)                (0)
#define DQUOT_FREE_INODE(inode)                 do { } while(0)
#define DQUOT_SYNC_DEV(dev)                     do { } while(0)
#define DQUOT_SYNC_SB(sb)                       do { } while(0)
#define DQUOT_OFF(sb)                           do { } while(0)
#define DQUOT_TRANSFER(inode, iattr)            (0)
extern __inline__ int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
{
        lock_kernel();
        inode_add_bytes(inode, nr);
        unlock_kernel();
        return 0;
}
 
extern __inline__ int DQUOT_PREALLOC_SPACE(struct inode *inode, qsize_t nr)
{
        DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr);
        mark_inode_dirty(inode);
        return 0;
}
 
extern __inline__ int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
{
        lock_kernel();
        inode_add_bytes(inode, nr);
        unlock_kernel();
        return 0;
}
 
extern __inline__ int DQUOT_ALLOC_SPACE(struct inode *inode, qsize_t nr)
{
        DQUOT_ALLOC_SPACE_NODIRTY(inode, nr);
        mark_inode_dirty(inode);
        return 0;
}
 
extern __inline__ void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
{
        lock_kernel();
        inode_sub_bytes(inode, nr);
        unlock_kernel();
}
 
extern __inline__ void DQUOT_FREE_SPACE(struct inode *inode, qsize_t nr)
{
        DQUOT_FREE_SPACE_NODIRTY(inode, nr);
        mark_inode_dirty(inode);
}
 
#endif /* CONFIG_QUOTA */
 
#define DQUOT_PREALLOC_BLOCK_NODIRTY(inode, nr) DQUOT_PREALLOC_SPACE_NODIRTY(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)
#define DQUOT_PREALLOC_BLOCK(inode, nr) DQUOT_PREALLOC_SPACE(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)
#define DQUOT_ALLOC_BLOCK_NODIRTY(inode, nr) DQUOT_ALLOC_SPACE_NODIRTY(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)
#define DQUOT_ALLOC_BLOCK(inode, nr) DQUOT_ALLOC_SPACE(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)
#define DQUOT_FREE_BLOCK_NODIRTY(inode, nr) DQUOT_FREE_SPACE_NODIRTY(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)
#define DQUOT_FREE_BLOCK(inode, nr) DQUOT_FREE_SPACE(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)
 
#endif /* _LINUX_QUOTAOPS_ */

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[/] [or1k/] [tags/] [LINUX_2_4_26_OR32/] [linux/] [linux-2.4/] [include/] [linux/] [quotaops.h] - Blame information for rev 1765

Line No.	Rev	Author	Line
1	1275	phoenix	`/*`
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>`
6			`*`
7			`* Version: $Id: quotaops.h,v 1.1.1.1 2004-04-15 02:35:06 phoenix Exp $`
8			`*`
9			`*/`
10			`#ifndef _LINUX_QUOTAOPS_`
11			`#define _LINUX_QUOTAOPS_`
12
13			`#include <linux/config.h>`
14			`#include <linux/smp_lock.h>`
15
16			`#if defined(CONFIG_QUOTA)`
17
18			`#include <linux/fs.h>`
19
20			`/*`
21			`* declaration of quota_function calls in kernel.`
22			`*/`
23			`extern void sync_dquots_dev(kdev_t dev, int type);`
24			`extern void sync_dquots_sb(struct super_block *sb, int type);`
25
26			`extern void dquot_initialize(struct inode *inode, int type);`
27			`extern void dquot_drop(struct inode *inode);`
28
29			`extern int dquot_alloc_space(struct inode *inode, qsize_t number, int prealloc);`
30			`extern int dquot_alloc_inode(const struct inode *inode, unsigned long number);`
31
32			`extern void dquot_free_space(struct inode *inode, qsize_t number);`
33			`extern void dquot_free_inode(const struct inode *inode, unsigned long number);`
34
35			`extern int dquot_transfer(struct inode inode, struct iattr iattr);`
36
37			`/*`
38			`* Operations supported for diskquotas.`
39			`*/`
40			`extern struct dquot_operations dquot_operations;`
41			`extern struct quotactl_ops vfs_quotactl_ops;`
42
43			`#define sb_dquot_ops (&dquot_operations)`
44			`#define sb_quotactl_ops (&vfs_quotactl_ops)`
45
46			`static __inline__ void DQUOT_INIT(struct inode *inode)`
47			`{`
48			`if (!inode->i_sb)`
49			`out_of_line_bug();`
50			`lock_kernel();`
51			`if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode))`
52			`inode->i_sb->dq_op->initialize(inode, -1);`
53			`unlock_kernel();`
54			`}`
55
56			`static __inline__ void DQUOT_DROP(struct inode *inode)`
57			`{`
58			`lock_kernel();`
59			`if (IS_QUOTAINIT(inode)) {`
60			`if (!inode->i_sb)`
61			`out_of_line_bug();`
62			`inode->i_sb->dq_op->drop(inode); /* Ops must be set when there's any quota... */`
63			`}`
64			`unlock_kernel();`
65			`}`
66
67			`static __inline__ int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)`
68			`{`
69			`lock_kernel();`
70			`if (sb_any_quota_enabled(inode->i_sb)) {`
71			`/* Used space is updated in alloc_space() */`
72			`if (inode->i_sb->dq_op->alloc_space(inode, nr, 1) == NO_QUOTA) {`
73			`unlock_kernel();`
74			`return 1;`
75			`}`
76			`}`
77			`else`
78			`inode_add_bytes(inode, nr);`
79			`unlock_kernel();`
80			`return 0;`
81			`}`
82
83			`static __inline__ int DQUOT_PREALLOC_SPACE(struct inode *inode, qsize_t nr)`
84			`{`
85			`int ret;`
86			`if (!(ret = DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr)))`
87			`mark_inode_dirty(inode);`
88			`return ret;`
89			`}`
90
91			`static __inline__ int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)`
92			`{`
93			`lock_kernel();`
94			`if (sb_any_quota_enabled(inode->i_sb)) {`
95			`/* Used space is updated in alloc_space() */`
96			`if (inode->i_sb->dq_op->alloc_space(inode, nr, 0) == NO_QUOTA) {`
97			`unlock_kernel();`
98			`return 1;`
99			`}`
100			`}`
101			`else`
102			`inode_add_bytes(inode, nr);`
103			`unlock_kernel();`
104			`return 0;`
105			`}`
106
107			`static __inline__ int DQUOT_ALLOC_SPACE(struct inode *inode, qsize_t nr)`
108			`{`
109			`int ret;`
110			`if (!(ret = DQUOT_ALLOC_SPACE_NODIRTY(inode, nr)))`
111			`mark_inode_dirty(inode);`
112			`return ret;`
113			`}`
114
115			`static __inline__ int DQUOT_ALLOC_INODE(struct inode *inode)`
116			`{`
117			`lock_kernel();`
118			`if (sb_any_quota_enabled(inode->i_sb)) {`
119			`DQUOT_INIT(inode);`
120			`if (inode->i_sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA) {`
121			`unlock_kernel();`
122			`return 1;`
123			`}`
124			`}`
125			`unlock_kernel();`
126			`return 0;`
127			`}`
128
129			`static __inline__ void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr)`
130			`{`
131			`lock_kernel();`
132			`if (sb_any_quota_enabled(inode->i_sb))`
133			`inode->i_sb->dq_op->free_space(inode, nr);`
134			`else`
135			`inode_sub_bytes(inode, nr);`
136			`unlock_kernel();`
137			`}`
138
139			`static __inline__ void DQUOT_FREE_SPACE(struct inode *inode, qsize_t nr)`
140			`{`
141			`DQUOT_FREE_SPACE_NODIRTY(inode, nr);`
142			`mark_inode_dirty(inode);`
143			`}`
144
145			`static __inline__ void DQUOT_FREE_INODE(struct inode *inode)`
146			`{`
147			`lock_kernel();`
148			`if (sb_any_quota_enabled(inode->i_sb))`
149			`inode->i_sb->dq_op->free_inode(inode, 1);`
150			`unlock_kernel();`
151			`}`
152
153			`static __inline__ int DQUOT_TRANSFER(struct inode inode, struct iattr iattr)`
154			`{`
155			`lock_kernel();`
156			`if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode)) {`
157			`DQUOT_INIT(inode);`
158			`if (inode->i_sb->dq_op->transfer(inode, iattr) == NO_QUOTA) {`
159			`unlock_kernel();`
160			`return 1;`
161			`}`
162			`}`
163			`unlock_kernel();`
164			`return 0;`
165			`}`
166
167			`#define DQUOT_SYNC_DEV(dev) sync_dquots_dev(dev, -1)`
168			`#define DQUOT_SYNC_SB(sb) sync_dquots_sb(sb, -1)`
169
170			`static __inline__ int DQUOT_OFF(struct super_block *sb)`
171			`{`
172			`int ret = -ENOSYS;`
173
174			`lock_kernel();`
175			`if (sb->s_qcop && sb->s_qcop->quota_off)`
176			`ret = sb->s_qcop->quota_off(sb, -1);`
177			`unlock_kernel();`
178			`return ret;`
179			`}`
180
181			`#else`
182
183			`/*`
184			`* NO-OP when quota not configured.`
185			`*/`
186			`#define sb_dquot_ops (NULL)`
187			`#define sb_quotactl_ops (NULL)`
188			`#define sync_dquots_dev(dev, type) do { } while(0)`
189			`#define DQUOT_INIT(inode) do { } while(0)`
190			`#define DQUOT_DROP(inode) do { } while(0)`
191			`#define DQUOT_ALLOC_INODE(inode) (0)`
192			`#define DQUOT_FREE_INODE(inode) do { } while(0)`
193			`#define DQUOT_SYNC_DEV(dev) do { } while(0)`
194			`#define DQUOT_SYNC_SB(sb) do { } while(0)`
195			`#define DQUOT_OFF(sb) do { } while(0)`
196			`#define DQUOT_TRANSFER(inode, iattr) (0)`
197			`extern __inline__ int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)`
198			`{`
199			`lock_kernel();`
200			`inode_add_bytes(inode, nr);`
201			`unlock_kernel();`
202			`return 0;`
203			`}`
204
205			`extern __inline__ int DQUOT_PREALLOC_SPACE(struct inode *inode, qsize_t nr)`
206			`{`
207			`DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr);`
208			`mark_inode_dirty(inode);`
209			`return 0;`
210			`}`
211
212			`extern __inline__ int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)`
213			`{`
214			`lock_kernel();`
215			`inode_add_bytes(inode, nr);`
216			`unlock_kernel();`
217			`return 0;`
218			`}`
219
220			`extern __inline__ int DQUOT_ALLOC_SPACE(struct inode *inode, qsize_t nr)`
221			`{`
222			`DQUOT_ALLOC_SPACE_NODIRTY(inode, nr);`
223			`mark_inode_dirty(inode);`
224			`return 0;`
225			`}`
226
227			`extern __inline__ void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr)`
228			`{`
229			`lock_kernel();`
230			`inode_sub_bytes(inode, nr);`
231			`unlock_kernel();`
232			`}`
233
234			`extern __inline__ void DQUOT_FREE_SPACE(struct inode *inode, qsize_t nr)`
235			`{`
236			`DQUOT_FREE_SPACE_NODIRTY(inode, nr);`
237			`mark_inode_dirty(inode);`
238			`}`
239
240			`#endif /* CONFIG_QUOTA */`
241
242			`#define DQUOT_PREALLOC_BLOCK_NODIRTY(inode, nr) DQUOT_PREALLOC_SPACE_NODIRTY(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)`
243			`#define DQUOT_PREALLOC_BLOCK(inode, nr) DQUOT_PREALLOC_SPACE(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)`
244			`#define DQUOT_ALLOC_BLOCK_NODIRTY(inode, nr) DQUOT_ALLOC_SPACE_NODIRTY(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)`
245			`#define DQUOT_ALLOC_BLOCK(inode, nr) DQUOT_ALLOC_SPACE(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)`
246			`#define DQUOT_FREE_BLOCK_NODIRTY(inode, nr) DQUOT_FREE_SPACE_NODIRTY(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)`
247			`#define DQUOT_FREE_BLOCK(inode, nr) DQUOT_FREE_SPACE(inode, ((qsize_t)(nr)) << (inode)->i_sb->s_blocksize_bits)`
248
249			`#endif /* _LINUX_QUOTAOPS_ */`