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udf: replace udf_*_offset macros with functions 

- 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>
Signed-off-by: Jan Kara <jack@suse.cz>
wifi-calibration
marcin.slusarz@gmail.com 2008-01-30 22:03:59 +01:00 committed by Jan Kara
parent 1ab9278570
commit d652eefb70
2 changed files with 20 additions and 11 deletions
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4
fs/udf/udf_i.h
View File

@ -12,8 +12,8 @@ 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 {

27
fs/udf/udfdecl.h
View File

@ -11,6 +11,7 @@
#include "udf_sb.h"
#include "udfend.h"
#include "udf_i.h"
#define UDF_PREALLOCATE
#define UDF_DEFAULT_PREALLOC_BLOCKS 8
@ -42,16 +43,24 @@ do { \
#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))
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;
}
#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_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))