X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=include%2Flinux%2Fscatterlist.h;h=9b1ef0c820a72dab0fb8dea4658f26d9bc4ad6ab;hb=996034b117b467709dec7811ef134063934fa626;hp=eca1ec93775c658b5eac3a0685337bf8e82eb754;hpb=84be456f883c4685680fba8e5154b5f72e92957e;p=cascardo%2Flinux.git

diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index eca1ec93775c..9b1ef0c820a7 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -246,6 +246,7 @@ static inline void *sg_virt(struct scatterlist *sg)
 }
 
 int sg_nents(struct scatterlist *sg);
+int sg_nents_for_len(struct scatterlist *sg, u64 len);
 struct scatterlist *sg_next(struct scatterlist *);
 struct scatterlist *sg_last(struct scatterlist *s, unsigned int);
 void sg_init_table(struct scatterlist *, unsigned int);
@@ -264,13 +265,16 @@ int sg_alloc_table_from_pages(struct sg_table *sgt,
 	unsigned long offset, unsigned long size,
 	gfp_t gfp_mask);
 
+size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, void *buf,
+		      size_t buflen, off_t skip, bool to_buffer);
+
 size_t sg_copy_from_buffer(struct scatterlist *sgl, unsigned int nents,
-			   void *buf, size_t buflen);
+			   const void *buf, size_t buflen);
 size_t sg_copy_to_buffer(struct scatterlist *sgl, unsigned int nents,
 			 void *buf, size_t buflen);
 
 size_t sg_pcopy_from_buffer(struct scatterlist *sgl, unsigned int nents,
-			    void *buf, size_t buflen, off_t skip);
+			    const void *buf, size_t buflen, off_t skip);
 size_t sg_pcopy_to_buffer(struct scatterlist *sgl, unsigned int nents,
 			  void *buf, size_t buflen, off_t skip);