[lustre-devel] [PATCH 48/49] lustre: lmv: handle default stripe_count=-1 properly

James Simmons jsimmons at infradead.org
Wed Apr 14 21:02:40 PDT 2021

From: Andreas Dilger <adilger at whamcloud.com>

If the default LMV stripe_count=-1 print it as a signed value
instead of unsigned, to better match how it is set with "-c -1".

WC-bug-id: https://jira.whamcloud.com/browse/LU-14507
Lustre-commit: d9753b5ba6ad29f ("LU-14507 mdt: handle default stripe_count=-1 properly")
Signed-off-by: Andreas Dilger <adilger at whamcloud.com>
Reviewed-on: https://review.whamcloud.com/41983
Reviewed-by: Jian Yu <yujian at whamcloud.com>
Reviewed-by: Lai Siyao <lai.siyao at whamcloud.com>
Reviewed-by: Oleg Drokin <green at whamcloud.com>
Signed-off-by: James Simmons <jsimmons at infradead.org>
 fs/lustre/include/lustre_lmv.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/lustre/include/lustre_lmv.h b/fs/lustre/include/lustre_lmv.h
index afa4d60..aee8342 100644
--- a/fs/lustre/include/lustre_lmv.h
+++ b/fs/lustre/include/lustre_lmv.h
@@ -149,7 +149,8 @@ static inline void lmv1_le_to_cpu(struct lmv_mds_md_v1 *lmv_dst,
 	lmv_dst->lmv_hash_type = le32_to_cpu(lmv_src->lmv_hash_type);
 	lmv_dst->lmv_layout_version = le32_to_cpu(lmv_src->lmv_layout_version);
+	if (lmv_src->lmv_stripe_count > LMV_MAX_STRIPE_COUNT)
+		return;
 	for (i = 0; i < lmv_src->lmv_stripe_count; i++)

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