LU-1842 quota: define quota records for glb/slv indexes

[fs/lustre-release.git] / lustre / quota / lquota_internal.h

diff --git a/lustre/quota/lquota_internal.h b/lustre/quota/lquota_internal.h
index b39f633..22fc7a2 100644 (file)
--- a/lustre/quota/lquota_internal.h
+++ b/lustre/quota/lquota_internal.h
@@ -33,11 +33,61 @@
 
 #define QTYPE_NAME(qtype) ((qtype) == USRQUOTA ? "usr" : "grp")
 
+#define QIF_IFLAGS (QIF_INODES | QIF_ITIME | QIF_ILIMITS)
+#define QIF_BFLAGS (QIF_SPACE | QIF_BTIME | QIF_BLIMITS)
+
+/* The biggest filename are the one used for slave index which are in the form
+ * of 0x%x-%s,glb_fid.f_oid,slv_uuid, that's to say:
+ * 2(0x) + 8(f_oid) + 1(-) + 40(UUID_MAX) which means 51 chars + '\0' */
+#define LQUOTA_NAME_MAX 52
+
+/* reserved OID in FID_SEQ_QUOTA for local objects */
+enum lquota_local_oid {
+       LQUOTA_USR_OID          = 1UL, /* slave index copy for user quota */
+       LQUOTA_GRP_OID          = 2UL, /* slave index copy for group quota */
+       /* all OIDs after this are allocated dynamically by the QMT */
+       LQUOTA_GENERATED_OID    = 4096UL,
+};
+
+/* Common data shared by quota-level handlers. This is allocated per-thread to
+ * reduce stack consumption */
+struct lquota_thread_info {
+       union  lquota_rec       qti_rec;
+       struct lu_buf           qti_lb;
+       struct lu_attr          qti_attr;
+       struct dt_object_format qti_dof;
+       struct lustre_mdt_attrs qti_lma;
+       struct lu_fid           qti_fid;
+       char                    qti_buf[LQUOTA_NAME_MAX];
+};
+
+#define qti_glb_rec    qti_rec.lqr_glb_rec
+#define qti_acct_rec   qti_rec.lqr_acct_rec
+#define qti_slv_rec    qti_rec.lqr_slv_rec
+
+extern struct lu_context_key lquota_thread_key;
+
+/* extract lquota_threa_info context from environment */
+static inline
+struct lquota_thread_info *lquota_info(const struct lu_env *env)
+{
+       struct lquota_thread_info       *info;
+
+       info = lu_context_key_get(&env->le_ctx, &lquota_thread_key);
+       LASSERT(info);
+       return info;
+}
+
 /* lquota_lib.c */
 struct dt_object *acct_obj_lookup(const struct lu_env *, struct dt_device *,
-                                  __u32);
+                                 int);
 
 /* lproc_quota.c */
 extern struct file_operations lprocfs_quota_seq_fops;
 
+/* quota_interface.c
+ * old quota module initialization routines, to be removed */
+int init_lustre_quota(void);
+void exit_lustre_quota(void);
+
 #endif /* _LQUOTA_INTERNAL_H */