From: Mikhail Pershin <mpershin@whamcloud.com>
Date: Fri, 13 Jun 2025 15:05:43 +0000 (+0300)
Subject: LU-19103 mgs: check mti nid format is old
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;ds=inline;p=fs%2Flustre-release.git

LU-19103 mgs: check mti nid format is old

Check mti NID list format passed by MGC in addition to
connection flags as real request can be prepared before
flags are negotiated

Signed-off-by: Mikhail Pershin <mpershin@whamcloud.com>
Change-Id: Ic669be26439bc1ef2f5713c0520af8c1c54fc981
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/59742
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
---

diff --git a/lustre/mgs/mgs_handler.c b/lustre/mgs/mgs_handler.c
index 88470b0..c28a8b5 100644
--- a/lustre/mgs/mgs_handler.c
+++ b/lustre/mgs/mgs_handler.c
@@ -360,7 +360,7 @@ static int mgs_target_reg(struct tgt_session_info *tsi)
 					  RCL_CLIENT);
 
 	/* Compatibility code for older targets, process mti as is */
-	if (!nidlist) {
+	if (!nidlist || !target_supports_large_nid(request_mti)) {
 		int limit;
 
 		mti = request_mti;