diff options
Diffstat (limited to 'include/linux/quota.h')
| -rw-r--r-- | include/linux/quota.h | 55 |
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); |