bcachefs: fix ja->cur_idx use while reading journal

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

diff --git a/fs/bcachefs/journal_io.c b/fs/bcachefs/journal_io.c
index 4178dd9ceb8e91ee3e0a4a81efb5a85160a79c62..67ff2633ba16a3e3301c78b398baa82720bc0c3c 100644 (file)
--- a/fs/bcachefs/journal_io.c
+++ b/fs/bcachefs/journal_io.c
@@ -584,7 +584,7 @@ static void bch2_journal_read_device(struct closure *cl)
        while (ja->bucket_seq[ja->cur_idx] > min_seq &&
               ja->bucket_seq[ja->cur_idx] >
               ja->bucket_seq[(ja->cur_idx + 1) % ja->nr])
-               ja->cur_idx++;
+               ja->cur_idx = (ja->cur_idx + 1) % ja->nr;
 
        ja->sectors_free = 0;