ref: 8668c0f48be313029675abbe949a5b74c68aa56d
parent: 38ddd83efb42a1ad30873e6a296009fa0e63678a
author: ngkaho1234 <[email protected]>
date: Sat Dec 12 18:12:05 EST 2015
ext4: journal test code skeleton.
--- a/lwext4/ext4.c
+++ b/lwext4/ext4.c
@@ -2505,6 +2505,53 @@
d->next_off = 0;
}
+int ext4_test_journal(const char *mount_point)
+{+ struct ext4_mountpoint *mp = ext4_get_mount(mount_point);
+ if (!mp)
+ return ENOENT;
+
+ int r = ENOTSUP;
+ EXT4_MP_LOCK(mp);
+ if (ext4_sb_feature_com(&mp->fs.sb, EXT4_FCOM_HAS_JOURNAL)) {+ struct jbd_fs *jbd_fs = calloc(1, sizeof(struct jbd_fs));
+ struct jbd_journal *journal;
+ if (!jbd_fs) {+ r = ENOMEM;
+ goto Finish;
+ }
+ journal = calloc(1, sizeof(struct jbd_journal));
+ if (!journal) {+ free(jbd_fs);
+ r = ENOMEM;
+ goto Finish;
+ }
+
+ r = jbd_get_fs(&mp->fs, jbd_fs);
+ if (r != EOK) {+ free(jbd_fs);
+ goto Finish;
+ }
+ r = jbd_journal_start(jbd_fs, journal);
+ if (r != EOK) {+ jbd_put_fs(jbd_fs);
+ free(journal);
+ free(jbd_fs);
+ goto Finish;
+ }
+
+ jbd_journal_stop(journal);
+ jbd_put_fs(jbd_fs);
+ free(journal);
+ free(jbd_fs);
+ }
+
+
+Finish:
+ EXT4_MP_UNLOCK(mp);
+ return r;
+}
+
/**
* @}
*/