X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Flov%2Flov_io.c;fp=lustre%2Flov%2Flov_io.c;h=ae0964b165053924a9709d5787953a6b8abb2bb6;hp=9ffd102f06b56e90a2e78806d9d2f0e26844a368;hb=d31647c017a390c9553a38d82c02fe7001a33a05;hpb=587e5aa8342980f761930235714add1cca80686b

diff --git a/lustre/lov/lov_io.c b/lustre/lov/lov_io.c
index 9ffd102..ae0964b 100644
--- a/lustre/lov/lov_io.c
+++ b/lustre/lov/lov_io.c
@@ -1284,12 +1284,16 @@ static int lov_io_submit(const struct lu_env *env,
 	struct lov_io		*lio = cl2lov_io(env, ios);
 	struct lov_io_sub	*sub;
 	struct cl_page_list	*plist = &lov_env_info(env)->lti_plist;
-	struct cl_page		*page;
+	struct cl_page		*page = cl_page_list_first(qin);
 	struct cl_page		*tmp;
+	bool dio = false;
 	int index;
 	int rc = 0;
 	ENTRY;
 
+	if (page->cp_type == CPT_TRANSIENT)
+		dio = true;
+
 	cl_page_list_init(plist);
 	while (qin->pl_nr > 0) {
 		struct cl_2queue  *cl2q = &lov_env_info(env)->lti_cl2q;
@@ -1312,12 +1316,17 @@ static int lov_io_submit(const struct lu_env *env,
 		cl_page_list_move(&cl2q->c2_qin, qin, page);
 
 		index = page->cp_lov_index;
-		cl_page_list_for_each_safe(page, tmp, qin) {
-			/* this page is not on this stripe */
-			if (index != page->cp_lov_index)
-				continue;
-
-			cl_page_list_move(&cl2q->c2_qin, qin, page);
+		/* DIO is already split by stripe */
+		if (!dio) {
+			cl_page_list_for_each_safe(page, tmp, qin) {
+				/* this page is not on this stripe */
+				if (index != page->cp_lov_index)
+					continue;
+
+				cl_page_list_move(&cl2q->c2_qin, qin, page);
+			}
+		} else {
+			cl_page_list_splice(qin, &cl2q->c2_qin);
 		}
 
 		sub = lov_sub_get(env, lio, index);