Re: [PATCH 09/10] udf: replace udf_*_offset macros with functions

Jan Kara
2008-01-31T16:48:26Z

On Wed 30-01-08 22:03:59, marcin.slusarz@gmail.com wrote:
> - translate udf_file_entry_alloc_offset macro into function
> - translate udf_ext0_offset macro into function
> - add comment about crypticly named fields in struct udf_inode_info
>
> Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
> Cc: Jan Kara <jack@suse.cz>
Acked-by: Jan Kara <jack@suse.cz>

Honza

> ---
> fs/udf/udfdecl.h | 29 +++++++++++++++++++----------
> include/linux/udf_fs_i.h | 4 ++--
> 2 files changed, 21 insertions(+), 12 deletions(-)
>
> diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
> index c6c457b..375be1b 100644
> --- a/fs/udf/udfdecl.h
> +++ b/fs/udf/udfdecl.h
> @@ -12,6 +12,7 @@
> #include <linux/buffer_head.h>
>
> #include "udfend.h"
> +#include "udf_i.h"
>
> #define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
> #define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
> @@ -23,16 +24,24 @@
> #define UDF_NAME_LEN 256
> #define UDF_PATH_LEN 1023
>
> -#define udf_file_entry_alloc_offset(inode)\
> - (UDF_I(inode)->i_use ?\
> - sizeof(struct unallocSpaceEntry) :\
> - ((UDF_I(inode)->i_efe ?\
> - sizeof(struct extendedFileEntry) :\
> - sizeof(struct fileEntry)) + UDF_I(inode)->i_lenEAttr))
> -
> -#define udf_ext0_offset(inode)\
> - (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB ?\
> - udf_file_entry_alloc_offset(inode) : 0)
> +static inline size_t udf_file_entry_alloc_offset(struct inode *inode)
> +{
> + struct udf_inode_info *iinfo = UDF_I(inode);
> + if (iinfo->i_use)
> + return sizeof(struct unallocSpaceEntry);
> + else if (iinfo->i_efe)
> + return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr;
> + else
> + return sizeof(struct fileEntry) + iinfo->i_lenEAttr;
> +}
> +
> +static inline size_t udf_ext0_offset(struct inode *inode)
> +{
> + if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
> + return udf_file_entry_alloc_offset(inode);
> + else
> + return 0;
> +}
>
> #define udf_get_lb_pblock(sb,loc,offset) udf_get_pblock((sb), (loc).logicalBlockNum, (loc).partitionReferenceNum, (offset))
>
> diff --git a/include/linux/udf_fs_i.h b/include/linux/udf_fs_i.h
> index ffaf056..6281a52 100644
> --- a/include/linux/udf_fs_i.h
> +++ b/include/linux/udf_fs_i.h
> @@ -27,8 +27,8 @@ struct udf_inode_info
> __u32 i_next_alloc_block;
> __u32 i_next_alloc_goal;
> unsigned i_alloc_type : 3;
> - unsigned i_efe : 1;
> - unsigned i_use : 1;
> + unsigned i_efe : 1; /* extendedFileEntry */
> + unsigned i_use : 1; /* unallocSpaceEntry */
> unsigned i_strat4096 : 1;
> unsigned reserved : 26;
> union
> --
> 1.5.3.7
>
--
Jan Kara <jack@suse.cz>
SUSE Labs, CR