btrfs-progs: Use helper function to access btrfs_super_block->sys_chunk_array_size

btrfs_super_block->sys_chunk_array_size is stored as le32 data on
disk. However insert_temp_chunk_item() writes sys_chunk_array_size in
host cpu order. This commit fixes this by using super block access
helper functions to read and write
btrfs_super_block->sys_chunk_array_size field.

Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/utils.c b/utils.c
index 69b580a..acbdf9f 100644 (file)
--- a/utils.c
+++ b/utils.c
@@ -560,14 +560,18 @@ static int insert_temp_chunk_item(int fd, struct extent_buffer *buf,
         */
        if (type & BTRFS_BLOCK_GROUP_SYSTEM) {
                char *cur;
+               u32 array_size;
 
-               cur = (char *)sb->sys_chunk_array + sb->sys_chunk_array_size;
+               cur = (char *)sb->sys_chunk_array
+                       + btrfs_super_sys_array_size(sb);
                memcpy(cur, &disk_key, sizeof(disk_key));
                cur += sizeof(disk_key);
                read_extent_buffer(buf, cur, (unsigned long int)chunk,
                                   btrfs_chunk_item_size(1));
-               sb->sys_chunk_array_size += btrfs_chunk_item_size(1) +
+               array_size = btrfs_super_sys_array_size(sb);
+               array_size += btrfs_chunk_item_size(1) +
                                            sizeof(disk_key);
+               btrfs_set_super_sys_array_size(sb, array_size);
 
                ret = write_temp_super(fd, sb, cfg->super_bytenr);
        }