include/linux/scatterlist.h

   1 #ifndef _LINUX_SCATTERLIST_H
   2 #define _LINUX_SCATTERLIST_H
   3
   4 #include <asm/scatterlist.h>
   5 #include <linux/mm.h>
   6 #include <linux/string.h>
   7
   8 static inline void sg_set_buf(struct scatterlist *sg, void *buf,
   9                               unsigned int buflen)
  10 {
  11         sg->page = virt_to_page(buf);
  12         sg->offset = offset_in_page(buf);
  13         sg->length = buflen;
  14 }
  15
  16 static inline void sg_init_one(struct scatterlist *sg, void *buf,
  17                                unsigned int buflen)
  18 {
  19         memset(sg, 0, sizeof(*sg));
  20         sg_set_buf(sg, buf, buflen);
  21 }
  22
  23 #endif /* _LINUX_SCATTERLIST_H */