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linux-next/include/asm-s390/scatterlist.h
Jens Axboe d6ec084200 Add CONFIG_DEBUG_SG sg validation
Add a Kconfig entry which will toggle some sanity checks on the sg
entry and tables.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-22 21:20:03 +02:00

20 lines
383 B
C

#ifndef _ASMS390_SCATTERLIST_H
#define _ASMS390_SCATTERLIST_H
struct scatterlist {
#ifdef CONFIG_DEBUG_SG
unsigned long sg_magic;
#endif
unsigned long page_link;
unsigned int offset;
unsigned int length;
};
#ifdef __s390x__
#define ISA_DMA_THRESHOLD (0xffffffffffffffffUL)
#else
#define ISA_DMA_THRESHOLD (0xffffffffUL)
#endif
#endif /* _ASMS390X_SCATTERLIST_H */