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 <chan...@linux.vnet.ibm.com>
---
 utils.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/utils.c b/utils.c
index d0189ad..74dde1e 100644
--- a/utils.c
+++ b/utils.c
@@ -562,14 +562,18 @@ 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);
        }
-- 
2.5.5

--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to