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    Subject[PATCH 3.16 018/245] Btrfs: fix wrong max inline data size limit
    3.16.83-rc1 review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Wang Shilong <wangsl.fnst@cn.fujitsu.com>

    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))
    \
     
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