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Btrfs: flush data on snapshot creation

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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>
This commit is contained in:
Sage Weil 2010-02-19 14:13:50 -08:00 committed by Chris Mason
parent bd4d108889
commit 0bdb1db297
1 changed files with 1 additions and 4 deletions
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5
fs/btrfs/transaction.c
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@ -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);
}
/*