LU-11750 krb5: krb5int_derive_key has 'hash' extra parameter

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

diff --git a/lustre/quota/qmt_internal.h b/lustre/quota/qmt_internal.h
index ac541b2..1ac3367 100644 (file)
--- a/lustre/quota/qmt_internal.h
+++ b/lustre/quota/qmt_internal.h
@@ -21,7 +21,7 @@
  * GPL HEADER END
  */
 /*
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2017, Intel Corporation.
  * Use is subject to license terms.
  */
 
@@ -65,19 +65,19 @@ struct qmt_device {
         * Once we support quota on non-default pools, then more pools will
         * be added to this hash table and pool master setup would have to be
         * handled via configuration logs */
-       cfs_hash_t              *qmt_pool_hash;
+       struct cfs_hash         *qmt_pool_hash;
 
        /* List of pools managed by this master target */
-       cfs_list_t               qmt_pool_list;
+       struct list_head         qmt_pool_list;
 
        /* procfs root directory for this qmt */
-       cfs_proc_dir_entry_t    *qmt_proc;
+       struct proc_dir_entry   *qmt_proc;
 
        /* dedicated thread in charge of space rebalancing */
        struct ptlrpc_thread     qmt_reba_thread;
 
        /* list of lqe entry which need space rebalancing */
-       cfs_list_t               qmt_reba_list;
+       struct list_head         qmt_reba_list;
 
        /* lock protecting rebalancing list */
        spinlock_t               qmt_reba_lock;
@@ -96,10 +96,10 @@ struct qmt_device {
  */
 struct qmt_pool_info {
        /* link to qmt's pool hash */
-       cfs_hlist_node_t         qpi_hash;
+       struct hlist_node        qpi_hash;
 
        /* chained list of all pools managed by the same qmt */
-       cfs_list_t               qpi_linkage;
+       struct list_head         qpi_linkage;
 
        /* Pool key composed of pool_id | (pool_type << 16)
         * Only pool ID 0 is supported for now and the pool type is either
@@ -116,21 +116,21 @@ struct qmt_pool_info {
 
        /* pointer to dt object associated with global indexes for both user
         * and group quota */
-       struct dt_object        *qpi_glb_obj[MAXQUOTAS];
+       struct dt_object        *qpi_glb_obj[LL_MAXQUOTAS];
 
        /* A pool supports two different quota types: user and group quota.
         * Each quota type has its own global index and lquota_entry hash table.
         */
-       struct lquota_site      *qpi_site[MAXQUOTAS];
+       struct lquota_site      *qpi_site[LL_MAXQUOTAS];
 
        /* number of slaves registered for each quota types */
-       int                      qpi_slv_nr[MAXQUOTAS];
+       int                      qpi_slv_nr[LL_MAXQUOTAS];
 
        /* reference on lqe (ID 0) storing grace time. */
-       struct lquota_entry     *qpi_grace_lqe[MAXQUOTAS];
+       struct lquota_entry     *qpi_grace_lqe[LL_MAXQUOTAS];
 
        /* procfs root directory for this pool */
-       cfs_proc_dir_entry_t    *qpi_proc;
+       struct proc_dir_entry   *qpi_proc;
 
        /* pool directory where all indexes related to this pool instance are
         * stored */
@@ -139,6 +139,22 @@ struct qmt_pool_info {
        /* Global quota parameters which apply to all quota type */
        /* the least value of qunit */
        unsigned long            qpi_least_qunit;
+
+       /* Least value of qunit when soft limit is exceeded.
+        *
+        * When soft limit is exceeded, qunit will be shrinked to least_qunit
+        * (1M for block limit), that results in significant write performance
+        * drop since the client will turn to sync write from now on.
+        *
+        * To retain the write performance in an acceptable level, we choose
+        * to sacrifice grace time accuracy a bit and use a larger least_qunit
+        * when soft limit is exceeded. It's (qpi_least_qunit * 4) by default,
+        * and user may enlarge it via procfs to get even better performance
+        * (with the cost of losing more grace time accuracy).
+        *
+        * See qmt_calc_softlimit().
+        */
+       unsigned long            qpi_soft_least_qunit;
 };
 
 /*
@@ -274,6 +290,14 @@ static inline bool qmt_space_exhausted(struct lquota_entry *lqe, __u64 now)
        return (qmt_hard_exhausted(lqe) || qmt_soft_exhausted(lqe, now));
 }
 
+/* helper routine clearing the default quota setting  */
+static inline void qmt_lqe_clear_default(struct lquota_entry *lqe)
+{
+       lqe->lqe_is_default = false;
+       lqe->lqe_gracetime &= ~((__u64)LQUOTA_FLAG_DEFAULT <<
+                                                       LQUOTA_GRACE_BITS);
+}
+
 /* number of seconds to wait for slaves to release quota space after
  * rebalancing */
 #define QMT_REBA_TIMEOUT 2
@@ -291,6 +315,8 @@ struct lquota_entry *qmt_pool_lqe_lookup(const struct lu_env *,
                                         union lquota_id *);
 /* qmt_entry.c */
 extern struct lquota_entry_operations qmt_lqe_ops;
+int qmt_lqe_set_default(const struct lu_env *env, struct qmt_pool_info *pool,
+                       struct lquota_entry *lqe, bool create_record);
 struct thandle *qmt_trans_start_with_slv(const struct lu_env *,
                                         struct lquota_entry *,
                                         struct dt_object *,
@@ -311,6 +337,9 @@ void qmt_revalidate(const struct lu_env *, struct lquota_entry *);
 __u64 qmt_alloc_expand(struct lquota_entry *, __u64, __u64);
 
 /* qmt_handler.c */
+int qmt_set_with_lqe(const struct lu_env *env, struct qmt_device *qmt,
+                    struct lquota_entry *lqe, __u64 hard, __u64 soft,
+                    __u64 time, __u32 valid, bool is_default, bool is_updated);
 int qmt_dqacq0(const struct lu_env *, struct lquota_entry *,
               struct qmt_device *, struct obd_uuid *, __u32, __u64, __u64,
               struct quota_body *);