[PATCH 5.15 467/565] ocfs2: update seq_file index in ocfs2_dlm_seq_next

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5.15-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Wengang Wang <wen.gang.wang@xxxxxxxxxx>

commit 914eec5e980171bc128e7e24f7a22aa1d803570e upstream.

The following INFO level message was seen:

seq_file: buggy .next function ocfs2_dlm_seq_next [ocfs2] did not
update position index

Fix:
Update *pos (so m->index) to make seq_read_iter happy though the index its
self makes no sense to ocfs2_dlm_seq_next.

Link: https://lkml.kernel.org/r/20241119174500.9198-1-wen.gang.wang@xxxxxxxxxx
Signed-off-by: Wengang Wang <wen.gang.wang@xxxxxxxxxx>
Reviewed-by: Joseph Qi <joseph.qi@xxxxxxxxxxxxxxxxx>
Cc: Mark Fasheh <mark@xxxxxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Cc: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Cc: Changwei Ge <gechangwei@xxxxxxx>
Cc: Jun Piao <piaojun@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 fs/ocfs2/dlmglue.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -3108,6 +3108,7 @@ static void *ocfs2_dlm_seq_next(struct s
 	struct ocfs2_lock_res *iter = v;
 	struct ocfs2_lock_res *dummy = &priv->p_iter_res;
 
+	(*pos)++;
 	spin_lock(&ocfs2_dlm_tracking_lock);
 	iter = ocfs2_dlm_next_res(iter, priv);
 	list_del_init(&dummy->l_debug_list);






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