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-rw-r--r--include/linux/quotaops.h114
1 files changed, 61 insertions, 53 deletions
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 370abb1..aa36793 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -9,6 +9,10 @@
#include <linux/fs.h>
+#define DQUOT_SPACE_WARN 0x1
+#define DQUOT_SPACE_RESERVE 0x2
+#define DQUOT_SPACE_NOFAIL 0x4
+
static inline struct quota_info *sb_dqopt(struct super_block *sb)
{
return &sb->s_dquot;
@@ -41,15 +45,22 @@ int dquot_scan_active(struct super_block *sb,
struct dquot *dquot_alloc(struct super_block *sb, int type);
void dquot_destroy(struct dquot *dquot);
-int __dquot_alloc_space(struct inode *inode, qsize_t number,
- int warn, int reserve);
-void __dquot_free_space(struct inode *inode, qsize_t number, int reserve);
+int __dquot_alloc_space(struct inode *inode, qsize_t number, int flags);
+void __dquot_free_space(struct inode *inode, qsize_t number, int flags);
int dquot_alloc_inode(const struct inode *inode);
int dquot_claim_space_nodirty(struct inode *inode, qsize_t number);
void dquot_free_inode(const struct inode *inode);
+int dquot_disable(struct super_block *sb, int type, unsigned int flags);
+/* Suspend quotas on remount RO */
+static inline int dquot_suspend(struct super_block *sb, int type)
+{
+ return dquot_disable(sb, type, DQUOT_SUSPENDED);
+}
+int dquot_resume(struct super_block *sb, int type);
+
int dquot_commit(struct dquot *dquot);
int dquot_acquire(struct dquot *dquot);
int dquot_release(struct dquot *dquot);
@@ -58,27 +69,25 @@ int dquot_mark_dquot_dirty(struct dquot *dquot);
int dquot_file_open(struct inode *inode, struct file *file);
-int vfs_quota_on(struct super_block *sb, int type, int format_id,
- char *path, int remount);
-int vfs_quota_enable(struct inode *inode, int type, int format_id,
+int dquot_quota_on(struct super_block *sb, int type, int format_id,
+ char *path);
+int dquot_enable(struct inode *inode, int type, int format_id,
unsigned int flags);
-int vfs_quota_on_path(struct super_block *sb, int type, int format_id,
+int dquot_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 dquot_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_disable(struct super_block *sb, int type, unsigned int flags);
-int vfs_quota_sync(struct super_block *sb, int type, int wait);
-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,
+int dquot_quota_off(struct super_block *sb, int type);
+int dquot_quota_sync(struct super_block *sb, int type, int wait);
+int dquot_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
+int dquot_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
+int dquot_get_dqblk(struct super_block *sb, int type, qid_t id,
struct fs_disk_quota *di);
-int vfs_set_dqblk(struct super_block *sb, int type, qid_t id,
+int dquot_set_dqblk(struct super_block *sb, int type, qid_t id,
struct fs_disk_quota *di);
int __dquot_transfer(struct inode *inode, struct dquot **transfer_to);
int dquot_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)
{
@@ -145,20 +154,7 @@ static inline unsigned sb_any_quota_active(struct super_block *sb)
* Operations supported for diskquotas.
*/
extern const struct dquot_operations dquot_operations;
-extern const struct quotactl_ops vfs_quotactl_ops;
-
-#define sb_dquot_ops (&dquot_operations)
-#define sb_quotactl_ops (&vfs_quotactl_ops)
-
-/* Cannot be called inside a transaction */
-static inline int vfs_dq_off(struct super_block *sb, int remount)
-{
- int ret = -ENOSYS;
-
- if (sb->s_qcop && sb->s_qcop->quota_off)
- ret = sb->s_qcop->quota_off(sb, -1, remount);
- return ret;
-}
+extern const struct quotactl_ops dquot_quotactl_ops;
#else
@@ -203,12 +199,6 @@ static inline int sb_any_quota_active(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_initialize(struct inode *inode)
{
}
@@ -226,39 +216,45 @@ static inline void dquot_free_inode(const struct inode *inode)
{
}
-static inline int vfs_dq_off(struct super_block *sb, int remount)
+static inline int dquot_transfer(struct inode *inode, struct iattr *iattr)
{
return 0;
}
-static inline int vfs_dq_quota_on_remount(struct super_block *sb)
+static inline int __dquot_alloc_space(struct inode *inode, qsize_t number,
+ int flags)
{
+ if (!(flags & DQUOT_SPACE_RESERVE))
+ inode_add_bytes(inode, number);
return 0;
}
-static inline int dquot_transfer(struct inode *inode, struct iattr *iattr)
+static inline void __dquot_free_space(struct inode *inode, qsize_t number,
+ int flags)
+{
+ if (!(flags & DQUOT_SPACE_RESERVE))
+ inode_sub_bytes(inode, number);
+}
+
+static inline int dquot_claim_space_nodirty(struct inode *inode, qsize_t number)
{
+ inode_add_bytes(inode, number);
return 0;
}
-static inline int __dquot_alloc_space(struct inode *inode, qsize_t number,
- int warn, int reserve)
+static inline int dquot_disable(struct super_block *sb, int type,
+ unsigned int flags)
{
- if (!reserve)
- inode_add_bytes(inode, number);
return 0;
}
-static inline void __dquot_free_space(struct inode *inode, qsize_t number,
- int reserve)
+static inline int dquot_suspend(struct super_block *sb, int type)
{
- if (!reserve)
- inode_sub_bytes(inode, number);
+ return 0;
}
-static inline int dquot_claim_space_nodirty(struct inode *inode, qsize_t number)
+static inline int dquot_resume(struct super_block *sb, int type)
{
- inode_add_bytes(inode, number);
return 0;
}
@@ -268,7 +264,13 @@ static inline int dquot_claim_space_nodirty(struct inode *inode, qsize_t number)
static inline int dquot_alloc_space_nodirty(struct inode *inode, qsize_t nr)
{
- return __dquot_alloc_space(inode, nr, 1, 0);
+ return __dquot_alloc_space(inode, nr, DQUOT_SPACE_WARN);
+}
+
+static inline void dquot_alloc_space_nofail(struct inode *inode, qsize_t nr)
+{
+ __dquot_alloc_space(inode, nr, DQUOT_SPACE_WARN|DQUOT_SPACE_NOFAIL);
+ mark_inode_dirty(inode);
}
static inline int dquot_alloc_space(struct inode *inode, qsize_t nr)
@@ -286,6 +288,11 @@ static inline int dquot_alloc_block_nodirty(struct inode *inode, qsize_t nr)
return dquot_alloc_space_nodirty(inode, nr << inode->i_blkbits);
}
+static inline void dquot_alloc_block_nofail(struct inode *inode, qsize_t nr)
+{
+ dquot_alloc_space_nofail(inode, nr << inode->i_blkbits);
+}
+
static inline int dquot_alloc_block(struct inode *inode, qsize_t nr)
{
return dquot_alloc_space(inode, nr << inode->i_blkbits);
@@ -293,7 +300,7 @@ static inline int dquot_alloc_block(struct inode *inode, qsize_t nr)
static inline int dquot_prealloc_block_nodirty(struct inode *inode, qsize_t nr)
{
- return __dquot_alloc_space(inode, nr << inode->i_blkbits, 0, 0);
+ return __dquot_alloc_space(inode, nr << inode->i_blkbits, 0);
}
static inline int dquot_prealloc_block(struct inode *inode, qsize_t nr)
@@ -308,7 +315,8 @@ static inline int dquot_prealloc_block(struct inode *inode, qsize_t nr)
static inline int dquot_reserve_block(struct inode *inode, qsize_t nr)
{
- return __dquot_alloc_space(inode, nr << inode->i_blkbits, 1, 1);
+ return __dquot_alloc_space(inode, nr << inode->i_blkbits,
+ DQUOT_SPACE_WARN|DQUOT_SPACE_RESERVE);
}
static inline int dquot_claim_block(struct inode *inode, qsize_t nr)
@@ -345,7 +353,7 @@ static inline void dquot_free_block(struct inode *inode, qsize_t nr)
static inline void dquot_release_reservation_block(struct inode *inode,
qsize_t nr)
{
- __dquot_free_space(inode, nr << inode->i_blkbits, 1);
+ __dquot_free_space(inode, nr << inode->i_blkbits, DQUOT_SPACE_RESERVE);
}
#endif /* _LINUX_QUOTAOPS_ */
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