* client shows interest in that lock, e.g. glimpse is occured. */
#define LDLM_DIRTY_AGE_LIMIT (10)
#define LDLM_DEFAULT_PARALLEL_AST_LIMIT 1024
+#define LDLM_DEFAULT_LRU_SHRINK_BATCH (16)
/**
* LDLM non-error return states
LDLM_NS_TYPE_MGT, /**< MGT namespace */
};
+enum ldlm_namespace_flags {
+ /**
+ * Flag to indicate the LRU cancel is in progress.
+ * Used to limit the process by 1 thread only.
+ */
+ LDLM_LRU_CANCEL = 0
+};
+
/**
* LDLM Namespace.
*
*/
unsigned int ns_max_unused;
+ /**
+ * Cancel batch, if unused lock count exceed lru_size
+ * Only be used if LRUR disable.
+ */
+ unsigned int ns_cancel_batch;
+
/** Maximum allowed age (last used time) for locks in the LRU. Set in
* seconds from userspace, but stored in ns to avoid repeat conversions.
*/
struct kobject ns_kobj; /* sysfs object */
struct completion ns_kobj_unregister;
+
+ /**
+ * To avoid another ns_lock usage, a separate bitops field.
+ */
+ unsigned long ns_flags;
};
/**
struct list_head l_exp_list;
};
+enum ldlm_match_flags {
+ LDLM_MATCH_UNREF = BIT(0),
+ LDLM_MATCH_AST = BIT(1),
+ LDLM_MATCH_AST_ANY = BIT(2),
+};
+
/**
* Describe the overlap between two locks. itree_overlap_cb data.
*/
union ldlm_policy_data *lmd_policy;
__u64 lmd_flags;
__u64 lmd_skip_flags;
- int lmd_unref;
- bool lmd_has_ast_data;
+ enum ldlm_match_flags lmd_match;
};
/** For uncommitted cross-MDT lock, store transno this lock belongs to */
}
#define LDLM_LOCK_REF_DEL(lock) \
- lu_ref_del(&lock->l_reference, "handle", current)
+ lu_ref_del(&lock->l_reference, "handle", lock)
static inline struct ldlm_lock *
ldlm_handle2lock_long(const struct lustre_handle *h, __u64 flags)
void ldlm_lock_fail_match(struct ldlm_lock *lock);
void ldlm_lock_allow_match(struct ldlm_lock *lock);
void ldlm_lock_allow_match_locked(struct ldlm_lock *lock);
+
enum ldlm_mode ldlm_lock_match_with_skip(struct ldlm_namespace *ns,
__u64 flags, __u64 skip_flags,
const struct ldlm_res_id *res_id,
union ldlm_policy_data *policy,
enum ldlm_mode mode,
struct lustre_handle *lh,
- int unref);
+ enum ldlm_match_flags match_flags);
static inline enum ldlm_mode ldlm_lock_match(struct ldlm_namespace *ns,
__u64 flags,
const struct ldlm_res_id *res_id,
enum ldlm_type type,
union ldlm_policy_data *policy,
enum ldlm_mode mode,
- struct lustre_handle *lh,
- int unref)
+ struct lustre_handle *lh)
{
return ldlm_lock_match_with_skip(ns, flags, 0, res_id, type, policy,
- mode, lh, unref);
+ mode, lh, 0);
}
struct ldlm_lock *search_itree(struct ldlm_resource *res,
struct ldlm_match_data *data);