#include <linux/errno.h>
#include <linux/types.h>
-#define __DQUOT_VERSION__ "dquot_6.5.1"
-#define __DQUOT_NUM_VERSION__ 6*10000+5*100+1
+#define __DQUOT_VERSION__ "dquot_6.5.2"
#define MAXQUOTAS 2
#define USRQUOTA 0 /* element used for user quotas */
#define Q_GETQUOTA 0x800007 /* get user quota structure */
#define Q_SETQUOTA 0x800008 /* set user quota structure */
+/* Quota format type IDs */
+#define QFMT_VFS_OLD 1
+#define QFMT_VFS_V0 2
+
/* Size of block in which space limits are passed through the quota
* interface */
#define QIF_DQBLKSIZE_BITS 10
* Quota structure used for communication with userspace via quotactl
* Following flags are used to specify which fields are valid
*/
-#define QIF_BLIMITS 1
-#define QIF_SPACE 2
-#define QIF_ILIMITS 4
-#define QIF_INODES 8
-#define QIF_BTIME 16
-#define QIF_ITIME 32
+enum {
+ QIF_BLIMITS_B = 0,
+ QIF_SPACE_B,
+ QIF_ILIMITS_B,
+ QIF_INODES_B,
+ QIF_BTIME_B,
+ QIF_ITIME_B,
+};
+
+#define QIF_BLIMITS (1 << QIF_BLIMITS_B)
+#define QIF_SPACE (1 << QIF_SPACE_B)
+#define QIF_ILIMITS (1 << QIF_ILIMITS_B)
+#define QIF_INODES (1 << QIF_INODES_B)
+#define QIF_BTIME (1 << QIF_BTIME_B)
+#define QIF_ITIME (1 << QIF_ITIME_B)
#define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
#define QIF_USAGE (QIF_SPACE | QIF_INODES)
#define QIF_TIMES (QIF_BTIME | QIF_ITIME)
#include <asm/atomic.h>
typedef __kernel_uid32_t qid_t; /* Type in which we store ids in memory */
-typedef __u64 qsize_t; /* Type in which we store sizes */
+typedef long long qsize_t; /* Type in which we store sizes */
extern spinlock_t dq_data_lock;
unsigned int dqi_igrace;
qsize_t dqi_maxblimit;
qsize_t dqi_maxilimit;
- union {
- struct v1_mem_dqinfo v1_i;
- struct v2_mem_dqinfo v2_i;
- } u;
+ void *dqi_priv;
};
struct super_block;
#define DQ_FAKE_B 3 /* no limits only usage */
#define DQ_READ_B 4 /* dquot was read into memory */
#define DQ_ACTIVE_B 5 /* dquot is active (dquot_release not called) */
+#define DQ_LASTSET_B 6 /* Following 6 bits (see QIF_) are reserved\
+ * for the mask of entries set via SETQUOTA\
+ * quotactl. They are set under dq_data_lock\
+ * and the quota format handling dquot can\
+ * clear them when it sees fit. */
struct dquot {
struct hlist_node dq_hash; /* Hash list in memory */
struct quota_format_type *qf_next;
};
-#define DQUOT_USR_ENABLED 0x01 /* User diskquotas enabled */
-#define DQUOT_GRP_ENABLED 0x02 /* Group diskquotas enabled */
-#define DQUOT_USR_SUSPENDED 0x04 /* User diskquotas are off, but
+/* Quota state flags - they actually come in two flavors - for users and groups */
+enum {
+ _DQUOT_USAGE_ENABLED = 0, /* Track disk usage for users */
+ _DQUOT_LIMITS_ENABLED, /* Enforce quota limits for users */
+ _DQUOT_SUSPENDED, /* User diskquotas are off, but
* we have necessary info in
* memory to turn them on */
-#define DQUOT_GRP_SUSPENDED 0x08 /* The same for group quotas */
+ _DQUOT_STATE_FLAGS
+};
+#define DQUOT_USAGE_ENABLED (1 << _DQUOT_USAGE_ENABLED)
+#define DQUOT_LIMITS_ENABLED (1 << _DQUOT_LIMITS_ENABLED)
+#define DQUOT_SUSPENDED (1 << _DQUOT_SUSPENDED)
+#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
+ * 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 */
+
+static inline unsigned int dquot_state_flag(unsigned int flags, int type)
+{
+ if (type == USRQUOTA)
+ return flags;
+ return flags << _DQUOT_STATE_FLAGS;
+}
+
+static inline unsigned int dquot_generic_flag(unsigned int flags, int type)
+{
+ if (type == USRQUOTA)
+ return flags;
+ return flags >> _DQUOT_STATE_FLAGS;
+}
struct quota_info {
unsigned int flags; /* Flags for diskquotas on this device */