https://github.com/torvalds/linux
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Tip revision: 0215ffb08ce99e2bb59eca114a99499a4d06e704 authored by Linus Torvalds on 29 November 2006, 21:57:37 UTC
Linux 2.6.19
Tip revision: 0215ffb
scatterlist.h
#ifndef _LINUX_SCATTERLIST_H
#define _LINUX_SCATTERLIST_H

#include <asm/scatterlist.h>
#include <linux/mm.h>
#include <linux/string.h>

static inline void sg_set_buf(struct scatterlist *sg, const void *buf,
			      unsigned int buflen)
{
	sg->page = virt_to_page(buf);
	sg->offset = offset_in_page(buf);
	sg->length = buflen;
}

static inline void sg_init_one(struct scatterlist *sg, const void *buf,
			       unsigned int buflen)
{
	memset(sg, 0, sizeof(*sg));
	sg_set_buf(sg, buf, buflen);
}

#endif /* _LINUX_SCATTERLIST_H */
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