LU-3321 obdclass: Add a preallocated percpu cl_env

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

diff --git a/lustre/include/cl_object.h b/lustre/include/cl_object.h
index f57e2ac..6c9bdf0 100644 (file)
--- a/lustre/include/cl_object.h
+++ b/lustre/include/cl_object.h
@@ -2769,6 +2769,15 @@ static inline void *cl_object_page_slice(struct cl_object *clob,
        return (void *)((char *)page + clob->co_slice_off);
 }
 
+/**
+ * Return refcount of cl_object.
+ */
+static inline int cl_object_refc(struct cl_object *clob)
+{
+       struct lu_object_header *header = clob->co_lu.lo_header;
+       return cfs_atomic_read(&header->loh_ref);
+}
+
 /** @} cl_object */
 
 /** \defgroup cl_page cl_page
@@ -3250,6 +3259,8 @@ void           cl_env_reexit     (void *cookie);
 void           cl_env_implant    (struct lu_env *env, int *refcheck);
 void           cl_env_unplant    (struct lu_env *env, int *refcheck);
 unsigned       cl_env_cache_purge(unsigned nr);
+struct lu_env *cl_env_percpu_get (void);
+void           cl_env_percpu_put (struct lu_env *env);
 
 /** @} cl_env */