| From: Wang Shilong <wangsl.fnst@cn.fujitsu.com> |
| Date: Thu, 17 Jul 2014 11:44:12 +0800 |
| Subject: Btrfs: fix wrong max inline data size limit |
| |
| commit c01a5c074c0f6f85a3b02e39432b9e5576ab51de upstream. |
| |
| inline data is stored from offset of @disk_bytenr in |
| struct btrfs_file_extent_item. So substracting total |
| size of struct btrfs_file_extent_item is wrong, fix it. |
| |
| Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com> |
| Reviewed-by: David Sterba <dsterba@suse.cz> |
| Signed-off-by: Chris Mason <clm@fb.com> |
| Signed-off-by: Ben Hutchings <ben@decadent.org.uk> |
| --- |
| fs/btrfs/ctree.h | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/fs/btrfs/ctree.h |
| +++ b/fs/btrfs/ctree.h |
| @@ -394,7 +394,7 @@ struct btrfs_header { |
| #define BTRFS_LEAF_DATA_SIZE(r) (__BTRFS_LEAF_DATA_SIZE(r->leafsize)) |
| #define BTRFS_MAX_INLINE_DATA_SIZE(r) (BTRFS_LEAF_DATA_SIZE(r) - \ |
| sizeof(struct btrfs_item) - \ |
| - sizeof(struct btrfs_file_extent_item)) |
| + offsetof(struct btrfs_file_extent_item, disk_bytenr)) |
| #define BTRFS_MAX_XATTR_SIZE(r) (BTRFS_LEAF_DATA_SIZE(r) - \ |
| sizeof(struct btrfs_item) -\ |
| sizeof(struct btrfs_dir_item)) |
