commit 9f198a2ac543eaaf47be275531ad5cbd50db3edf
author Vasily Averin <vvs@virtuozzo.com> Fri Jan 24 09:10:47 2020 +0300
committer Mike Marshall <hubcap@omnibond.com> Tue Feb 04 15:22:04 2020 -0500
tree fef688c538de1542fc01a74b9daf88605bbb3afb
parent d5226fa6dbae0569ee43ecfc08bdcd6770fc4755

help_next should increase position index

if seq_file .next fuction does not change position index,
read after some lseek can generate unexpected output.

https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>

fs/orangefs/orangefs-debugfs.c

diff --git a/fs/orangefs/orangefs-debugfs.c b/fs/orangefs/orangefs-debugfs.c
index 25543a9..29eaa45 100644
--- a/fs/orangefs/orangefs-debugfs.c
+++ b/fs/orangefs/orangefs-debugfs.c
@@ -273,6 +273,7 @@
 
 static void *help_next(struct seq_file *m, void *v, loff_t *pos)
 {
+	(*pos)++;
 	gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_next: start\n");
 
 	return NULL;