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Inherit system-wide BLKDEV_IOSIZE definition.

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Submitted by:	kan
This commit is contained in:
Craig Rodrigues 2005-12-13 02:32:30 +00:00
parent 22fc836263
commit e497db39e8
1 changed files with 1 additions and 13 deletions
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14
sys/gnu/fs/xfs/FreeBSD/xfs_freebsd.h
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@ -118,20 +118,8 @@
#define NBPC PAGE_SIZE /* Number of bytes per click */
#define BPCSHIFT PAGE_SHIFT /* LOG2(NBPC) if exact */
/*
* Size of block device i/o is parameterized here.
* Currently the system supports page-sized i/o.
*/
#define BLKDEV_IOSHIFT BPCSHIFT
#ifndef BLKDEV_IOSIZE
#define BLKDEV_IOSIZE (1<<BLKDEV_IOSHIFT)
#else
# if NBPC != BLKDEV_IOSIZE
# error Wrong BLKDEV_IOSIZE
# endif
#endif
/* number of BB's per block device block */
#define BLKDEV_BB BTOBB(BLKDEV_IOSIZE)
#define BLKDEV_BB BTOBB(BLKDEV_IOSIZE)
/* bytes to clicks */
#define btoct(x) ((__psunsigned_t)(x)>>BPCSHIFT)