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linux-sg2042
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Don't blatt first element of prv in sg_chain() 

I realize that sg chaining is a ploy to make the rest of the kernel
devs feel the pain of the SCSI subsystem.  But this was a little
unsubtle.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Rusty Russell 2008-01-11 10:12:55 +01:00 committed by Jens Axboe
parent 88fb61e4ba
commit b801a1e7db
1 changed files with 2 additions and 2 deletions
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4
include/linux/scatterlist.h
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@ -191,8 +191,8 @@ static inline void sg_chain(struct scatterlist *prv, unsigned int prv_nents,
/*
* offset and length are unused for chain entry. Clear them.
*/
prv->offset = 0;
prv->length = 0;
prv[prv_nents - 1].offset = 0;
prv[prv_nents - 1].length = 0;
/*
* Set lowest bit to indicate a link pointer, and make sure to clear