This is a note to let you know that I've just added the patch titled fs: dlm: fix debugfs dump to the 5.12-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: fs-dlm-fix-debugfs-dump.patch and it can be found in the queue-5.12 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit ce785497794004b99ac240c2aedba7f51d1aff05 Author: Alexander Aring <aahringo@xxxxxxxxxx> Date: Mon Mar 1 17:05:08 2021 -0500 fs: dlm: fix debugfs dump [ Upstream commit 92c48950b43f4a767388cf87709d8687151a641f ] This patch fixes the following message which randomly pops up during glocktop call: seq_file: buggy .next function table_seq_next did not update position index The issue is that seq_read_iter() in fs/seq_file.c also needs an increment of the index in an non next record case as well which this patch fixes otherwise seq_read_iter() will print out the above message. Signed-off-by: Alexander Aring <aahringo@xxxxxxxxxx> Signed-off-by: David Teigland <teigland@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/fs/dlm/debug_fs.c b/fs/dlm/debug_fs.c index d6bbccb0ed15..d5bd990bcab8 100644 --- a/fs/dlm/debug_fs.c +++ b/fs/dlm/debug_fs.c @@ -542,6 +542,7 @@ static void *table_seq_next(struct seq_file *seq, void *iter_ptr, loff_t *pos) if (bucket >= ls->ls_rsbtbl_size) { kfree(ri); + ++*pos; return NULL; } tree = toss ? &ls->ls_rsbtbl[bucket].toss : &ls->ls_rsbtbl[bucket].keep;