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Diff for /xfs-linux/xfs_bmap_btree.h between versions 1.77 and 1.78

version 1.77, 2007/08/02 16:04:40 version 1.78, 2007/08/02 16:06:13
Line 35  typedef struct xfs_bmdr_block { Line 35  typedef struct xfs_bmdr_block {
   
 /*  /*
  * Bmap btree record and extent descriptor.   * Bmap btree record and extent descriptor.
  * For 32-bit kernels,  
  *  l0:31 is an extent flag (value 1 indicates non-normal).  
  *  l0:0-30 and l1:9-31 are startoff.  
  *  l1:0-8, l2:0-31, and l3:21-31 are startblock.  
  *  l3:0-20 are blockcount.  
  * For 64-bit kernels,  
  *  l0:63 is an extent flag (value 1 indicates non-normal).   *  l0:63 is an extent flag (value 1 indicates non-normal).
  *  l0:9-62 are startoff.   *  l0:9-62 are startoff.
  *  l0:0-8 and l1:21-63 are startblock.   *  l0:0-8 and l1:21-63 are startblock.
  *  l1:0-20 are blockcount.   *  l1:0-20 are blockcount.
  */   */
   
 #ifndef XFS_NATIVE_HOST  
   
 #define BMBT_TOTAL_BITLEN       128     /* 128 bits, 16 bytes */  
 #define BMBT_EXNTFLAG_BITOFF    0  
 #define BMBT_EXNTFLAG_BITLEN    1  #define BMBT_EXNTFLAG_BITLEN    1
 #define BMBT_STARTOFF_BITOFF    (BMBT_EXNTFLAG_BITOFF + BMBT_EXNTFLAG_BITLEN)  
 #define BMBT_STARTOFF_BITLEN    54  #define BMBT_STARTOFF_BITLEN    54
 #define BMBT_STARTBLOCK_BITOFF  (BMBT_STARTOFF_BITOFF + BMBT_STARTOFF_BITLEN)  
 #define BMBT_STARTBLOCK_BITLEN  52  #define BMBT_STARTBLOCK_BITLEN  52
 #define BMBT_BLOCKCOUNT_BITOFF  \  
         (BMBT_STARTBLOCK_BITOFF + BMBT_STARTBLOCK_BITLEN)  
 #define BMBT_BLOCKCOUNT_BITLEN  (BMBT_TOTAL_BITLEN - BMBT_BLOCKCOUNT_BITOFF)  
   
 #else  
   
 #define BMBT_TOTAL_BITLEN       128     /* 128 bits, 16 bytes */  
 #define BMBT_EXNTFLAG_BITOFF    63  
 #define BMBT_EXNTFLAG_BITLEN    1  
 #define BMBT_STARTOFF_BITOFF    (BMBT_EXNTFLAG_BITOFF - BMBT_STARTOFF_BITLEN)  
 #define BMBT_STARTOFF_BITLEN    54  
 #define BMBT_STARTBLOCK_BITOFF  85 /* 128 - 43 (other 9 is in first word) */  
 #define BMBT_STARTBLOCK_BITLEN  52  
 #define BMBT_BLOCKCOUNT_BITOFF  64 /* Start of second 64 bit container */  
 #define BMBT_BLOCKCOUNT_BITLEN  21  #define BMBT_BLOCKCOUNT_BITLEN  21
   
 #endif /* XFS_NATIVE_HOST */  
   
   
 #define BMBT_USE_64     1  #define BMBT_USE_64     1
   
Removed from v.1.77  
changed lines
  Added in v.1.78

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