LU-1876 hsm: layout lock implementation on server side

[fs/lustre-release.git] / lustre / include / lustre_dlm.h

diff --git a/lustre/include/lustre_dlm.h b/lustre/include/lustre_dlm.h
index 08b6e7d..5ad5f9b 100644 (file)
--- a/lustre/include/lustre_dlm.h
+++ b/lustre/include/lustre_dlm.h
@@ -90,6 +90,7 @@ typedef enum {
         ELDLM_LOCK_ABORTED = 301,
         ELDLM_LOCK_REPLACED = 302,
         ELDLM_NO_LOCK_DATA = 303,
+        ELDLM_LOCK_WOULDBLOCK = 304,
 
         ELDLM_NAMESPACE_EXISTS = 400,
         ELDLM_BAD_NAMESPACE    = 401
@@ -1153,6 +1154,12 @@ struct ldlm_resource {
        struct inode            *lr_lvb_inode;
 };
 
+static inline bool ldlm_has_layout(struct ldlm_lock *lock)
+{
+       return lock->l_resource->lr_type == LDLM_IBITS &&
+               lock->l_policy_data.l_inodebits.bits & MDS_INODELOCK_LAYOUT;
+}
+
 static inline char *
 ldlm_ns_name(struct ldlm_namespace *ns)
 {