From: Kent Overstreet <kent.overstreet@linux.dev>
Date: Thu, 22 Aug 2024 02:27:45 +0000 (-0400)
Subject: bcachefs: Fix warning in bch2_fs_journal_stop()
X-Git-Tag: microblaze-v6.13~9^2~154
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=7f2de6947f92cfa4be8e5eaa1237e962bb8ee65f;p=linux-2.6-microblaze.git

bcachefs: Fix warning in bch2_fs_journal_stop()

j->last_empty_seq needs to match j->seq when the journal is empty

Reported-by: syzbot+4093905737cf289b6b38@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
---

diff --git a/fs/bcachefs/journal.c b/fs/bcachefs/journal.c
index 649e3a01608a..f5f7db50ca31 100644
--- a/fs/bcachefs/journal.c
+++ b/fs/bcachefs/journal.c
@@ -1260,7 +1260,7 @@ int bch2_fs_journal_start(struct journal *j, u64 cur_seq)
 	}
 
 	if (!had_entries)
-		j->last_empty_seq = cur_seq;
+		j->last_empty_seq = cur_seq - 1; /* to match j->seq */
 
 	spin_lock(&j->lock);