From: Sebastien Buisson <sbuisson@ddn.com>
Date: Fri, 17 Jan 2020 16:31:04 +0000 (+0100)
Subject: LU-13152 llapi: llapi_layout_get_by_xattr groks DoM
X-Git-Tag: 2.13.52~66
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=3e23353201a753104d1fcdab28353646e40644dc

LU-13152 llapi: llapi_layout_get_by_xattr groks DoM

llapi_layout_get_by_xattr() function must be updated to handle
lov component with LOV_PATTERN_MDT pattern.

Signed-off-by: Clement Barthelemy <clement.barthelemy@nextino.eu>
Signed-off-by: Sebastien Buisson <sbuisson@ddn.com>
Change-Id: I6553e66cd4f3b5acc65790da94555350c98fe179
Reviewed-on: https://review.whamcloud.com/37269
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>
---

diff --git a/lustre/utils/liblustreapi_layout.c b/lustre/utils/liblustreapi_layout.c
index c9525fe..aefde5d 100644
--- a/lustre/utils/liblustreapi_layout.c
+++ b/lustre/utils/liblustreapi_layout.c
@@ -549,8 +549,12 @@ struct llapi_layout *llapi_layout_get_by_xattr(void *lov_xattr,
 		else if (v1->lmm_pattern == (LOV_PATTERN_RAID0 |
 					 LOV_PATTERN_OVERSTRIPING))
 			comp->llc_pattern = LLAPI_LAYOUT_OVERSTRIPING;
+		else if (v1->lmm_pattern == LOV_PATTERN_MDT)
+			comp->llc_pattern = LLAPI_LAYOUT_MDT;
 		else
-			/* Lustre only supports RAID0 for now. */
+			/* Lustre only supports RAID0, overstripping
+			 * and DoM for now.
+			 */
 			comp->llc_pattern = v1->lmm_pattern;
 
 		if (v1->lmm_stripe_size == 0)