ref: 740927e660015515a8ab6c3e777e76aeffcd140f
parent: 824e15d0a277d9c6b9e357226dce4ae79d748bbc
author: ngkaho1234 <ngkaho1234@gmail.com>
date: Thu Dec 17 04:44:06 EST 2015
ext4_journal: wrap around journal->start if it overflows.
--- a/lwext4/ext4_journal.c
+++ b/lwext4/ext4_journal.c
@@ -1160,6 +1160,7 @@
if (first_in_queue) {journal->start = trans->start_iblock +
trans->alloc_blocks;
+ wrap(&journal->jbd_fs->sb, journal->start);
journal->trans_id = trans->trans_id + 1;
}
jbd_journal_free_trans(journal, trans, false);
@@ -1172,11 +1173,13 @@
trans_node);
journal->start = trans->start_iblock +
trans->alloc_blocks;
+ wrap(&journal->jbd_fs->sb, journal->start);
journal->trans_id = trans->trans_id + 1;
jbd_journal_free_trans(journal,
trans, false);
} else {journal->start = trans->start_iblock;
+ wrap(&journal->jbd_fs->sb, journal->start);
journal->trans_id = trans->trans_id;
break;
}
@@ -1213,6 +1216,7 @@
if (TAILQ_EMPTY(&journal->cp_queue)) { if (trans->data_cnt) {journal->start = trans->start_iblock;
+ wrap(&journal->jbd_fs->sb, journal->start);
journal->trans_id = trans->trans_id;
jbd_journal_write_sb(journal);
jbd_write_sb(journal->jbd_fs);
@@ -1222,6 +1226,7 @@
} else {journal->start = trans->start_iblock +
trans->alloc_blocks;
+ wrap(&journal->jbd_fs->sb, journal->start);
journal->trans_id = trans->trans_id + 1;
jbd_journal_write_sb(journal);
jbd_journal_free_trans(journal, trans, false);