SG: clear termination bit in sg_chain()
Since we are using the last entry in the list, clear any possible termination bit that may have already been set. Pointed out by Rusty. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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@ -179,7 +179,11 @@ static inline void sg_chain(struct scatterlist *prv, unsigned int prv_nents,
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#ifndef ARCH_HAS_SG_CHAIN
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#ifndef ARCH_HAS_SG_CHAIN
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BUG();
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BUG();
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#endif
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#endif
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prv[prv_nents - 1].page_link = (unsigned long) sgl | 0x01;
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/*
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* Set lowest bit to indicate a link pointer, and make sure to clear
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* the termination bit if it happens to be set.
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*/
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prv[prv_nents - 1].page_link = ((unsigned long) sgl | 0x01) & ~0x02;
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}
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}
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/**
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/**
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