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 (file)
--- 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)