Btrfs: prealloc more blocks for the extent map

Signed-off-by: N Chris Mason <chris.mason@oracle.com>

Btrfs: prealloc more blocks for the extent map
Signed-off-by: N Chris Mason <chris.mason@oracle.com>
308535a0 · Chris Mason · David Woodhouse · 7c4452b9 · 308535a0
隐藏空白更改
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Showing with 1 addition and 1 deletion

fs/btrfs/extent-tree.c fs/btrfs/extent-tree.c +1 -1

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--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -541,7 +541,7 @@ static int find_free_extent(struct btrfs_trans_handle *trans, struct btrfs_root
 	if (num_blocks == 0) {
 		fill_prealloc = 1;
 		num_blocks = 1;
-		total_needed = min(level + 2, BTRFS_MAX_LEVEL) * 3;
+		total_needed = (min(level + 1, BTRFS_MAX_LEVEL) + 2) * 3;
 	}
 	find_search_start(root, 0);
 	if (info->block_group_cache &&