From: Heming Zhao <heming.zhao@suse.com>
Date: Mon, 10 Mar 2025 07:36:21 +0000 (+0800)
Subject: dlm: make tcp still work in multi-link env
X-Git-Tag: v6.14.9~633
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4f1ad55aed5420128e1bbbc7882b904e96552500;p=thirdparty%2Fkernel%2Fstable.git

dlm: make tcp still work in multi-link env

[ Upstream commit 03d2b62208a336a3bb984b9465ef6d89a046ea22 ]

This patch bypasses multi-link errors in TCP mode, allowing dlm
to operate on the first tcp link.

Signed-off-by: Heming Zhao <heming.zhao@suse.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index d28141829c051..70abd4da17a63 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -1826,8 +1826,8 @@ static int dlm_tcp_listen_validate(void)
 {
 	/* We don't support multi-homed hosts */
 	if (dlm_local_count > 1) {
-		log_print("TCP protocol can't handle multi-homed hosts, try SCTP");
-		return -EINVAL;
+		log_print("Detect multi-homed hosts but use only the first IP address.");
+		log_print("Try SCTP, if you want to enable multi-link.");
 	}
 
 	return 0;