1 files changed, 26 insertions, 29 deletions

diff --git a/include/linux/quota.h b/include/linux/quota.h
index 78c48895b12a..b462916b2a0a 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -73,6 +73,8 @@
 /* Quota format type IDs */
 #define QFMT_VFS_OLD 1
 #define QFMT_VFS_V0 2
+#define QFMT_OCFS2 3
+#define QFMT_VFS_V1 4
 
 /* Size of block in which space limits are passed through the quota
  * interface */
@@ -277,9 +279,6 @@ struct dquot {
         struct mem_dqblk dq_dqb;        /* Diskquota usage */
 };
 
-#define QUOTA_OK          0
-#define NO_QUOTA          1
-
 /* Operations which must be implemented by each quota format */
 struct quota_format_ops {
         int (*check_quota_file)(struct super_block *sb, int type);      /* Detect whether file is in our format */
@@ -293,13 +292,6 @@ struct quota_format_ops {
 
 /* Operations working with dquots */
 struct dquot_operations {
-        int (*initialize) (struct inode *, int);
-        int (*drop) (struct inode *);
-        int (*alloc_space) (struct inode *, qsize_t, int);
-        int (*alloc_inode) (const struct inode *, qsize_t);
-        int (*free_space) (struct inode *, qsize_t);
-        int (*free_inode) (const struct inode *, qsize_t);
-        int (*transfer) (struct inode *, struct iattr *);
         int (*write_dquot) (struct dquot *);            /* Ordinary dquot write */
         struct dquot *(*alloc_dquot)(struct super_block *, int);        /* Allocate memory for new dquot */
         void (*destroy_dquot)(struct dquot *);          /* Free memory for dquot */
@@ -307,21 +299,16 @@ struct dquot_operations {
         int (*release_dquot) (struct dquot *);          /* Quota is going to be deleted from disk */
         int (*mark_dirty) (struct dquot *);             /* Dquot is marked dirty */
         int (*write_info) (struct super_block *, int);  /* Write of quota "superblock" */
-        /* reserve quota for delayed block allocation */
-        int (*reserve_space) (struct inode *, qsize_t, int);
-        /* claim reserved quota for delayed alloc */
-        int (*claim_space) (struct inode *, qsize_t);
-        /* release rsved quota for delayed alloc */
-        void (*release_rsv) (struct inode *, qsize_t);
-        /* get reserved quota for delayed alloc */
-        qsize_t (*get_reserved_space) (struct inode *);
+        /* get reserved quota for delayed alloc, value returned is managed by
+         * quota code only */
+        qsize_t *(*get_reserved_space) (struct inode *);
 };
 
 /* Operations handling requests from userspace */
 struct quotactl_ops {
         int (*quota_on)(struct super_block *, int, int, char *, int);
         int (*quota_off)(struct super_block *, int, int);
-        int (*quota_sync)(struct super_block *, int);
+        int (*quota_sync)(struct super_block *, int, int);
         int (*get_info)(struct super_block *, int, struct if_dqinfo *);
         int (*set_info)(struct super_block *, int, struct if_dqinfo *);
         int (*get_dqblk)(struct super_block *, int, qid_t, struct if_dqblk *);
@@ -334,7 +321,7 @@ struct quotactl_ops {
 
 struct quota_format_type {
         int qf_fmt_id;  /* Quota format id */
-        struct quota_format_ops *qf_ops;        /* Operations of format */
+        const struct quota_format_ops *qf_ops;  /* Operations of format */
         struct module *qf_owner;                /* Module implementing quota format */
         struct quota_format_type *qf_next;
 };
@@ -354,27 +341,37 @@ enum {
 #define DQUOT_STATE_FLAGS       (DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED | \
                                  DQUOT_SUSPENDED)
 /* Other quota flags */
-#define DQUOT_QUOTA_SYS_FILE    (1 << 6)        /* Quota file is a special
+#define DQUOT_STATE_LAST        (_DQUOT_STATE_FLAGS * MAXQUOTAS)
+#define DQUOT_QUOTA_SYS_FILE    (1 << DQUOT_STATE_LAST)
+                                                /* Quota file is a special
                                                  * system file and user cannot
                                                  * touch it. Filesystem is
                                                  * responsible for setting
                                                  * S_NOQUOTA, S_NOATIME flags
                                                  */
-#define DQUOT_NEGATIVE_USAGE    (1 << 7)        /* Allow negative quota usage */
+#define DQUOT_NEGATIVE_USAGE    (1 << (DQUOT_STATE_LAST + 1))
+                                               /* Allow negative quota usage */
 
 static inline unsigned int dquot_state_flag(unsigned int flags, int type)
 {
-        if (type == USRQUOTA)
-                return flags;
-        return flags << _DQUOT_STATE_FLAGS;
+        return flags << _DQUOT_STATE_FLAGS * type;
 }
 
 static inline unsigned int dquot_generic_flag(unsigned int flags, int type)
 {
-        if (type == USRQUOTA)
-                return flags;
-        return flags >> _DQUOT_STATE_FLAGS;
+        return (flags >> _DQUOT_STATE_FLAGS * type) & DQUOT_STATE_FLAGS;
+}
+
+#ifdef CONFIG_QUOTA_NETLINK_INTERFACE
+extern void quota_send_warning(short type, unsigned int id, dev_t dev,
+                               const char warntype);
+#else
+static inline void quota_send_warning(short type, unsigned int id, dev_t dev,
+                                      const char warntype)
+{
+        return;
 }
+#endif /* CONFIG_QUOTA_NETLINK_INTERFACE */
 
 struct quota_info {
         unsigned int flags;                     /* Flags for diskquotas on this device */
@@ -383,7 +380,7 @@ struct quota_info {
         struct rw_semaphore dqptr_sem;          /* serialize ops using quota_info struct, pointers from inode to dquots */
         struct inode *files[MAXQUOTAS];         /* inodes of quotafiles */
         struct mem_dqinfo info[MAXQUOTAS];      /* Information for each quota type */
-        struct quota_format_ops *ops[MAXQUOTAS];        /* Operations for each type */
+        const struct quota_format_ops *ops[MAXQUOTAS];  /* Operations for each type */
 };
 
 int register_quota_format(struct quota_format_type *fmt);