[Btrfs-devel][PATCH]Fix type and memory leak in extent-tree.c

[Yan Zheng]

Hello,

This patch fixes a type in update_block_group and memory leak in
btrfs_free_block_groups.

Regards
YZ
----
diff -r bc6bfcf7a158 extent-tree.c
--- a/extent-tree.c	Tue Oct 30 16:56:53 2007 -0400
+++ b/extent-tree.c	Thu Nov 01 16:04:48 2007 +0800
@@ -591,13 +591,13 @@ static int update_block_group(struct btr

 				cache->data = data;
 				if (data) {
-					bit_to_clear = BLOCK_GROUP_DATA;
-					bit_to_set = BLOCK_GROUP_METADATA;
+					bit_to_clear = BLOCK_GROUP_METADATA;
+					bit_to_set = BLOCK_GROUP_DATA;
 					cache->item.flags |=
 						BTRFS_BLOCK_GROUP_DATA;
 				} else {
-					bit_to_clear = BLOCK_GROUP_METADATA;
-					bit_to_set = BLOCK_GROUP_DATA;
+					bit_to_clear = BLOCK_GROUP_DATA;
+					bit_to_set = BLOCK_GROUP_METADATA;
 					cache->item.flags &=
 						~BTRFS_BLOCK_GROUP_DATA;
 				}
@@ -1459,6 +1459,7 @@ int btrfs_free_block_groups(struct btrfs
 {
 	u64 start;
 	u64 end;
+	u64 ptr;
 	int ret;

 	while(1) {
@@ -1466,6 +1467,9 @@ int btrfs_free_block_groups(struct btrfs
 					    &start, &end, (unsigned int)-1);
 		if (ret)
 			break;
+		ret = get_state_private(&info->block_group_cache, start, &ptr);
+		if (!ret)
+			kfree((void *)(unsigned long)ptr);
 		clear_extent_bits(&info->block_group_cache, start,
 				  end, (unsigned int)-1, GFP_NOFS);
 	}