X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fobdclass%2Fcl_object.c;h=9b3e71b6907feca5d48488a09a16dcf60d8a685e;hb=94fe3dadb5774af0eb0fec6d21aa73a22ac4838c;hp=a63b0cfe6009d6ee531c812fb792486c8f4b9ad9;hpb=3742646beeb658f321745f5c275836879b9d077d;p=fs%2Flustre-release.git

diff --git a/lustre/obdclass/cl_object.c b/lustre/obdclass/cl_object.c
index a63b0cf..9b3e71b 100644
--- a/lustre/obdclass/cl_object.c
+++ b/lustre/obdclass/cl_object.c
@@ -474,6 +474,22 @@ int cl_object_layout_get(const struct lu_env *env, struct cl_object *obj,
 }
 EXPORT_SYMBOL(cl_object_layout_get);
 
+loff_t cl_object_maxbytes(struct cl_object *obj)
+{
+	struct lu_object_header	*top = obj->co_lu.lo_header;
+	loff_t maxbytes = LLONG_MAX;
+	ENTRY;
+
+	list_for_each_entry(obj, &top->loh_layers, co_lu.lo_linkage) {
+		if (obj->co_ops->coo_maxbytes != NULL)
+			maxbytes = min_t(loff_t, obj->co_ops->coo_maxbytes(obj),
+					 maxbytes);
+	}
+
+	RETURN(maxbytes);
+}
+EXPORT_SYMBOL(cl_object_maxbytes);
+
 /**
  * Helper function removing all object locks, and marking object for
  * deletion. All object pages must have been deleted at this point.