#define _LINUX_QUOTAOPS_
#include <linux/smp_lock.h>
-
#include <linux/fs.h>
+static inline struct quota_info *sb_dqopt(struct super_block *sb)
+{
+ return &sb->s_dquot;
+}
+
#if defined(CONFIG_QUOTA)
/*
* declaration of quota_function calls in kernel.
*/
-extern void sync_dquots(struct super_block *sb, int type);
-
-extern int dquot_initialize(struct inode *inode, int type);
-extern int 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 int dquot_free_space(struct inode *inode, qsize_t number);
-extern int dquot_free_inode(const struct inode *inode, unsigned long number);
-
-extern int dquot_transfer(struct inode *inode, struct iattr *iattr);
-extern int dquot_commit(struct dquot *dquot);
-extern int dquot_acquire(struct dquot *dquot);
-extern int dquot_release(struct dquot *dquot);
-extern int dquot_commit_info(struct super_block *sb, int type);
-extern int dquot_mark_dquot_dirty(struct dquot *dquot);
-
-extern int vfs_quota_on(struct super_block *sb, int type, int format_id,
- char *path, int remount);
-extern int vfs_quota_on_mount(struct super_block *sb, char *qf_name,
- int format_id, int type);
-extern int vfs_quota_off(struct super_block *sb, int type, int remount);
-extern int vfs_quota_sync(struct super_block *sb, int type);
-extern int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
-extern int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
-extern int vfs_get_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di);
-extern int vfs_set_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di);
+void sync_dquots(struct super_block *sb, int type);
+
+int dquot_initialize(struct inode *inode, int type);
+int dquot_drop(struct inode *inode);
+
+int dquot_alloc_space(struct inode *inode, qsize_t number, int prealloc);
+int dquot_alloc_inode(const struct inode *inode, unsigned long number);
+
+int dquot_free_space(struct inode *inode, qsize_t number);
+int dquot_free_inode(const struct inode *inode, unsigned long number);
+
+int dquot_transfer(struct inode *inode, struct iattr *iattr);
+int dquot_commit(struct dquot *dquot);
+int dquot_acquire(struct dquot *dquot);
+int dquot_release(struct dquot *dquot);
+int dquot_commit_info(struct super_block *sb, int type);
+int dquot_mark_dquot_dirty(struct dquot *dquot);
+
+int vfs_quota_on(struct super_block *sb, int type, int format_id,
+ char *path, int remount);
+int vfs_quota_on_path(struct super_block *sb, int type, int format_id,
+ struct path *path);
+int vfs_quota_on_mount(struct super_block *sb, char *qf_name,
+ int format_id, int type);
+int vfs_quota_off(struct super_block *sb, int type, int remount);
+int vfs_quota_sync(struct super_block *sb, int type);
+int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
+int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
+int vfs_get_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di);
+int vfs_set_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di);
+
+void vfs_dq_drop(struct inode *inode);
+int vfs_dq_transfer(struct inode *inode, struct iattr *iattr);
+int vfs_dq_quota_on_remount(struct super_block *sb);
+
+static inline struct mem_dqinfo *sb_dqinfo(struct super_block *sb, int type)
+{
+ return sb_dqopt(sb)->info + type;
+}
+
+/*
+ * Functions for checking status of quota
+ */
+
+static inline int sb_has_quota_enabled(struct super_block *sb, int type)
+{
+ if (type == USRQUOTA)
+ return sb_dqopt(sb)->flags & DQUOT_USR_ENABLED;
+ return sb_dqopt(sb)->flags & DQUOT_GRP_ENABLED;
+}
+
+static inline int sb_any_quota_enabled(struct super_block *sb)
+{
+ return sb_has_quota_enabled(sb, USRQUOTA) ||
+ sb_has_quota_enabled(sb, GRPQUOTA);
+}
+
+static inline int sb_has_quota_suspended(struct super_block *sb, int type)
+{
+ if (type == USRQUOTA)
+ return sb_dqopt(sb)->flags & DQUOT_USR_SUSPENDED;
+ return sb_dqopt(sb)->flags & DQUOT_GRP_SUSPENDED;
+}
+
+static inline int sb_any_quota_suspended(struct super_block *sb)
+{
+ return sb_has_quota_suspended(sb, USRQUOTA) ||
+ sb_has_quota_suspended(sb, GRPQUOTA);
+}
/*
* Operations supported for diskquotas.
/* It is better to call this function outside of any transaction as it might
* need a lot of space in journal for dquot structure allocation. */
-static inline void DQUOT_INIT(struct inode *inode)
+static inline void vfs_dq_init(struct inode *inode)
{
BUG_ON(!inode->i_sb);
if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode))
inode->i_sb->dq_op->initialize(inode, -1);
}
-/* The same as with DQUOT_INIT */
-static inline void DQUOT_DROP(struct inode *inode)
-{
- /* Here we can get arbitrary inode from clear_inode() so we have
- * to be careful. OTOH we don't need locking as quota operations
- * are allowed to change only at mount time */
- if (!IS_NOQUOTA(inode) && inode->i_sb && inode->i_sb->dq_op
- && inode->i_sb->dq_op->drop) {
- int cnt;
- /* Test before calling to rule out calls from proc and such
- * where we are not allowed to block. Note that this is
- * actually reliable test even without the lock - the caller
- * must assure that nobody can come after the DQUOT_DROP and
- * add quota pointers back anyway */
- for (cnt = 0; cnt < MAXQUOTAS; cnt++)
- if (inode->i_dquot[cnt] != NODQUOT)
- break;
- if (cnt < MAXQUOTAS)
- inode->i_sb->dq_op->drop(inode);
- }
-}
-
/* The following allocation/freeing/transfer functions *must* be called inside
* a transaction (deadlocks possible otherwise) */
-static inline int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
+static inline int vfs_dq_prealloc_space_nodirty(struct inode *inode, qsize_t nr)
{
if (sb_any_quota_enabled(inode->i_sb)) {
/* Used space is updated in alloc_space() */
return 0;
}
-static inline int DQUOT_PREALLOC_SPACE(struct inode *inode, qsize_t nr)
+static inline int vfs_dq_prealloc_space(struct inode *inode, qsize_t nr)
{
int ret;
- if (!(ret = DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr)))
+ if (!(ret = vfs_dq_prealloc_space_nodirty(inode, nr)))
mark_inode_dirty(inode);
return ret;
}
-static inline int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
+static inline int vfs_dq_alloc_space_nodirty(struct inode *inode, qsize_t nr)
{
if (sb_any_quota_enabled(inode->i_sb)) {
/* Used space is updated in alloc_space() */
return 0;
}
-static inline int DQUOT_ALLOC_SPACE(struct inode *inode, qsize_t nr)
+static inline int vfs_dq_alloc_space(struct inode *inode, qsize_t nr)
{
int ret;
- if (!(ret = DQUOT_ALLOC_SPACE_NODIRTY(inode, nr)))
+ if (!(ret = vfs_dq_alloc_space_nodirty(inode, nr)))
mark_inode_dirty(inode);
return ret;
}
-static inline int DQUOT_ALLOC_INODE(struct inode *inode)
+static inline int vfs_dq_alloc_inode(struct inode *inode)
{
if (sb_any_quota_enabled(inode->i_sb)) {
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
if (inode->i_sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA)
return 1;
}
return 0;
}
-static inline void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
+static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr)
{
if (sb_any_quota_enabled(inode->i_sb))
inode->i_sb->dq_op->free_space(inode, nr);
inode_sub_bytes(inode, nr);
}
-static inline void DQUOT_FREE_SPACE(struct inode *inode, qsize_t nr)
+static inline void vfs_dq_free_space(struct inode *inode, qsize_t nr)
{
- DQUOT_FREE_SPACE_NODIRTY(inode, nr);
+ vfs_dq_free_space_nodirty(inode, nr);
mark_inode_dirty(inode);
}
-static inline void DQUOT_FREE_INODE(struct inode *inode)
+static inline void vfs_dq_free_inode(struct inode *inode)
{
if (sb_any_quota_enabled(inode->i_sb))
inode->i_sb->dq_op->free_inode(inode, 1);
}
-static inline int DQUOT_TRANSFER(struct inode *inode, struct iattr *iattr)
-{
- 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)
- return 1;
- }
- return 0;
-}
-
/* The following two functions cannot be called inside a transaction */
-static inline void DQUOT_SYNC(struct super_block *sb)
+static inline void vfs_dq_sync(struct super_block *sb)
{
sync_dquots(sb, -1);
}
-static inline int DQUOT_OFF(struct super_block *sb, int remount)
+static inline int vfs_dq_off(struct super_block *sb, int remount)
{
int ret = -ENOSYS;
return ret;
}
-static inline int DQUOT_ON_REMOUNT(struct super_block *sb)
+#else
+
+static inline int sb_has_quota_enabled(struct super_block *sb, int type)
{
- int cnt;
- int ret = 0, err;
+ return 0;
+}
- if (!sb->s_qcop || !sb->s_qcop->quota_on)
- return -ENOSYS;
- for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- err = sb->s_qcop->quota_on(sb, cnt, 0, NULL, 1);
- if (err < 0 && !ret)
- ret = err;
- }
- return ret;
+static inline int sb_any_quota_enabled(struct super_block *sb)
+{
+ return 0;
}
-#else
+static inline int sb_has_quota_suspended(struct super_block *sb, int type)
+{
+ return 0;
+}
+
+static inline int sb_any_quota_suspended(struct super_block *sb)
+{
+ return 0;
+}
/*
* NO-OP when quota not configured.
#define sb_dquot_ops (NULL)
#define sb_quotactl_ops (NULL)
-static inline void DQUOT_INIT(struct inode *inode)
+static inline void vfs_dq_init(struct inode *inode)
{
}
-static inline void DQUOT_DROP(struct inode *inode)
+static inline void vfs_dq_drop(struct inode *inode)
{
}
-static inline int DQUOT_ALLOC_INODE(struct inode *inode)
+static inline int vfs_dq_alloc_inode(struct inode *inode)
{
return 0;
}
-static inline void DQUOT_FREE_INODE(struct inode *inode)
+static inline void vfs_dq_free_inode(struct inode *inode)
{
}
-static inline void DQUOT_SYNC(struct super_block *sb)
+static inline void vfs_dq_sync(struct super_block *sb)
{
}
-static inline int DQUOT_OFF(struct super_block *sb, int remount)
+static inline int vfs_dq_off(struct super_block *sb, int remount)
{
return 0;
}
-static inline int DQUOT_ON_REMOUNT(struct super_block *sb)
+static inline int vfs_dq_quota_on_remount(struct super_block *sb)
{
return 0;
}
-static inline int DQUOT_TRANSFER(struct inode *inode, struct iattr *iattr)
+static inline int vfs_dq_transfer(struct inode *inode, struct iattr *iattr)
{
return 0;
}
-static inline int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
+static inline int vfs_dq_prealloc_space_nodirty(struct inode *inode, qsize_t nr)
{
inode_add_bytes(inode, nr);
return 0;
}
-static inline int DQUOT_PREALLOC_SPACE(struct inode *inode, qsize_t nr)
+static inline int vfs_dq_prealloc_space(struct inode *inode, qsize_t nr)
{
- DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr);
+ vfs_dq_prealloc_space_nodirty(inode, nr);
mark_inode_dirty(inode);
return 0;
}
-static inline int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
+static inline int vfs_dq_alloc_space_nodirty(struct inode *inode, qsize_t nr)
{
inode_add_bytes(inode, nr);
return 0;
}
-static inline int DQUOT_ALLOC_SPACE(struct inode *inode, qsize_t nr)
+static inline int vfs_dq_alloc_space(struct inode *inode, qsize_t nr)
{
- DQUOT_ALLOC_SPACE_NODIRTY(inode, nr);
+ vfs_dq_alloc_space_nodirty(inode, nr);
mark_inode_dirty(inode);
return 0;
}
-static inline void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
+static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr)
{
inode_sub_bytes(inode, nr);
}
-static inline void DQUOT_FREE_SPACE(struct inode *inode, qsize_t nr)
+static inline void vfs_dq_free_space(struct inode *inode, qsize_t nr)
{
- DQUOT_FREE_SPACE_NODIRTY(inode, nr);
+ vfs_dq_free_space_nodirty(inode, nr);
mark_inode_dirty(inode);
}
#endif /* CONFIG_QUOTA */
-static inline int DQUOT_PREALLOC_BLOCK_NODIRTY(struct inode *inode, qsize_t nr)
+static inline int vfs_dq_prealloc_block_nodirty(struct inode *inode, qsize_t nr)
{
- return DQUOT_PREALLOC_SPACE_NODIRTY(inode,
+ return vfs_dq_prealloc_space_nodirty(inode,
nr << inode->i_sb->s_blocksize_bits);
}
-static inline int DQUOT_PREALLOC_BLOCK(struct inode *inode, qsize_t nr)
+static inline int vfs_dq_prealloc_block(struct inode *inode, qsize_t nr)
{
- return DQUOT_PREALLOC_SPACE(inode,
+ return vfs_dq_prealloc_space(inode,
nr << inode->i_sb->s_blocksize_bits);
}
-static inline int DQUOT_ALLOC_BLOCK_NODIRTY(struct inode *inode, qsize_t nr)
+static inline int vfs_dq_alloc_block_nodirty(struct inode *inode, qsize_t nr)
{
- return DQUOT_ALLOC_SPACE_NODIRTY(inode,
+ return vfs_dq_alloc_space_nodirty(inode,
nr << inode->i_sb->s_blocksize_bits);
}
-static inline int DQUOT_ALLOC_BLOCK(struct inode *inode, qsize_t nr)
+static inline int vfs_dq_alloc_block(struct inode *inode, qsize_t nr)
{
- return DQUOT_ALLOC_SPACE(inode,
+ return vfs_dq_alloc_space(inode,
nr << inode->i_sb->s_blocksize_bits);
}
-static inline void DQUOT_FREE_BLOCK_NODIRTY(struct inode *inode, qsize_t nr)
+static inline void vfs_dq_free_block_nodirty(struct inode *inode, qsize_t nr)
{
- DQUOT_FREE_SPACE_NODIRTY(inode, nr << inode->i_sb->s_blocksize_bits);
+ vfs_dq_free_space_nodirty(inode, nr << inode->i_sb->s_blocksize_bits);
}
-static inline void DQUOT_FREE_BLOCK(struct inode *inode, qsize_t nr)
+static inline void vfs_dq_free_block(struct inode *inode, qsize_t nr)
{
- DQUOT_FREE_SPACE(inode, nr << inode->i_sb->s_blocksize_bits);
+ vfs_dq_free_space(inode, nr << inode->i_sb->s_blocksize_bits);
}
+/*
+ * Define uppercase equivalents for compatibility with old function names
+ * Can go away when we think all users have been converted (15/04/2008)
+ */
+#define DQUOT_INIT(inode) vfs_dq_init(inode)
+#define DQUOT_DROP(inode) vfs_dq_drop(inode)
+#define DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr) \
+ vfs_dq_prealloc_space_nodirty(inode, nr)
+#define DQUOT_PREALLOC_SPACE(inode, nr) vfs_dq_prealloc_space(inode, nr)
+#define DQUOT_ALLOC_SPACE_NODIRTY(inode, nr) \
+ vfs_dq_alloc_space_nodirty(inode, nr)
+#define DQUOT_ALLOC_SPACE(inode, nr) vfs_dq_alloc_space(inode, nr)
+#define DQUOT_PREALLOC_BLOCK_NODIRTY(inode, nr) \
+ vfs_dq_prealloc_block_nodirty(inode, nr)
+#define DQUOT_PREALLOC_BLOCK(inode, nr) vfs_dq_prealloc_block(inode, nr)
+#define DQUOT_ALLOC_BLOCK_NODIRTY(inode, nr) \
+ vfs_dq_alloc_block_nodirty(inode, nr)
+#define DQUOT_ALLOC_BLOCK(inode, nr) vfs_dq_alloc_block(inode, nr)
+#define DQUOT_ALLOC_INODE(inode) vfs_dq_alloc_inode(inode)
+#define DQUOT_FREE_SPACE_NODIRTY(inode, nr) \
+ vfs_dq_free_space_nodirty(inode, nr)
+#define DQUOT_FREE_SPACE(inode, nr) vfs_dq_free_space(inode, nr)
+#define DQUOT_FREE_BLOCK_NODIRTY(inode, nr) \
+ vfs_dq_free_block_nodirty(inode, nr)
+#define DQUOT_FREE_BLOCK(inode, nr) vfs_dq_free_block(inode, nr)
+#define DQUOT_FREE_INODE(inode) vfs_dq_free_inode(inode)
+#define DQUOT_TRANSFER(inode, iattr) vfs_dq_transfer(inode, iattr)
+#define DQUOT_SYNC(sb) vfs_dq_sync(sb)
+#define DQUOT_OFF(sb, remount) vfs_dq_off(sb, remount)
+#define DQUOT_ON_REMOUNT(sb) vfs_dq_quota_on_remount(sb)
+
#endif /* _LINUX_QUOTAOPS_ */
git.openpandora.org / pandora-kernel.git / blobdiff