From: Paulo Alcantara <pc@cjr.nz>
Date: Thu, 2 Dec 2021 15:29:35 -0300
Subject: [PATCH] cifs: fix missed refcounting of ipc tcon
Git-commit: 65de262a209da0951eb9bc60b3b7faf3bbffa38a
References: git-fixes
Patch-mainline: v5.16-rc4
Fix missed refcounting of IPC tcon used for getting domain-based DFS
root referrals. We want to keep it alive as long as mount is active
and can be refreshed. For standalone DFS root referrals it wouldn't
be a problem as the client ends up having an IPC tcon for both mount
and cache.
Fixes: c88f7dcd6d64 ("cifs: support nested dfs links over reconnect")
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
Acked-by: Paulo Alcantara <palcantara@suse.de>
---
fs/cifs/connect.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 6b705026da1a..90f38fb9baa0 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3426,6 +3426,7 @@ static int connect_dfs_root(struct mount_ctx *mnt_ctx, struct dfs_cache_tgt_list
*/
mount_put_conns(mnt_ctx);
mount_get_dfs_conns(mnt_ctx);
+ set_root_ses(mnt_ctx);
full_path = build_unc_path_to_root(ctx, cifs_sb, true);
if (IS_ERR(full_path))
--
2.34.1