Commit 0bdb1db2 authored Feb 19, 2010 by Sage Weil Committed by Chris Mason Mar 15, 2010

Btrfs: flush data on snapshot creation



Flush any delalloc extents when we create a snapshot, so that recently
written file data is always included in the snapshot.

A later commit will add the ability to snapshot without the flush, but
most people expect flushing.

Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

parent bd4d1088

fs/btrfs/transaction.c

+1 −4

Original line number	Diff line number	Diff line
		@@ -997,13 +997,10 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,

		mutex_unlock(&root->fs_info->trans_mutex);

		if (flush_on_commit) {
		if (flush_on_commit \|\| snap_pending) {
		btrfs_start_delalloc_inodes(root, 1);
		ret = btrfs_wait_ordered_extents(root, 0, 1);
		BUG_ON(ret);
		} else if (snap_pending) {
		ret = btrfs_wait_ordered_extents(root, 0, 1);
		BUG_ON(ret);
		}

		/*