diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/super.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 4770c98bdb6..4db537b3a16 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1131,6 +1131,8 @@ static const struct super_operations ext4_nojournal_sops = { .drop_inode = ext4_drop_inode, .evict_inode = ext4_evict_inode, .sync_fs = ext4_sync_fs, + .freeze_fs = ext4_freeze, + .unfreeze_fs = ext4_unfreeze, .put_super = ext4_put_super, .statfs = ext4_statfs, .remount_fs = ext4_remount, @@ -4758,23 +4760,26 @@ static int ext4_freeze(struct super_block *sb) journal = EXT4_SB(sb)->s_journal; - /* Now we set up the journal barrier. */ - jbd2_journal_lock_updates(journal); + if (journal) { + /* Now we set up the journal barrier. */ + jbd2_journal_lock_updates(journal); - /* - * Don't clear the needs_recovery flag if we failed to flush - * the journal. - */ - error = jbd2_journal_flush(journal); - if (error < 0) - goto out; + /* + * Don't clear the needs_recovery flag if we failed to + * flush the journal. + */ + error = jbd2_journal_flush(journal); + if (error < 0) + goto out; + } /* Journal blocked and flushed, clear needs_recovery flag. */ EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER); error = ext4_commit_super(sb, 1); out: - /* we rely on upper layer to stop further updates */ - jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal); + if (journal) + /* we rely on upper layer to stop further updates */ + jbd2_journal_unlock_updates(journal); return error; } |