LU-17250 mgs: generate a new MDT configuration by copy

[fs/lustre-release.git] / lustre / include / uapi / linux / lustre / lustre_cfg.h

diff --git a/lustre/include/uapi/linux/lustre/lustre_cfg.h b/lustre/include/uapi/linux/lustre/lustre_cfg.h
index 8b59e1e..2dcb57a 100644 (file)
--- a/lustre/include/uapi/linux/lustre/lustre_cfg.h
+++ b/lustre/include/uapi/linux/lustre/lustre_cfg.h
@@ -265,6 +265,9 @@ static inline void *lustre_cfg_buf(struct lustre_cfg *lcfg, __u32 index)
        if (index >= bufcount)
                return NULL;
 
+       if (!lcfg->lcfg_buflens[index])
+               return NULL;
+
        offset = LCFG_HDR_SIZE(lcfg->lcfg_bufcount);
        for (i = 0; i < index; i++)
                offset += __ALIGN_KERNEL(lcfg->lcfg_buflens[i], 8);