59 #define __bvec_iter_bvec(bvec, iter)	(&(bvec)[(iter).bi_idx])  argument
62 #define mp_bvec_iter_page(bvec, iter)				\  argument
63 	(__bvec_iter_bvec((bvec), (iter))->bv_page)
65 #define mp_bvec_iter_len(bvec, iter)				\  argument
67 	    __bvec_iter_bvec((bvec), (iter))->bv_len - (iter).bi_bvec_done)
69 #define mp_bvec_iter_offset(bvec, iter)				\  argument
70 	(__bvec_iter_bvec((bvec), (iter))->bv_offset + (iter).bi_bvec_done)
72 #define mp_bvec_iter_page_idx(bvec, iter)			\  argument
73 	(mp_bvec_iter_offset((bvec), (iter)) / PAGE_SIZE)
75 #define mp_bvec_iter_bvec(bvec, iter)				\  argument
77 	.bv_page	= mp_bvec_iter_page((bvec), (iter)),	\
78 	.bv_len		= mp_bvec_iter_len((bvec), (iter)),	\
79 	.bv_offset	= mp_bvec_iter_offset((bvec), (iter)),	\
83  #define bvec_iter_offset(bvec, iter)				\  argument
84 	(mp_bvec_iter_offset((bvec), (iter)) % PAGE_SIZE)
86 #define bvec_iter_len(bvec, iter)				\  argument
87 	min_t(unsigned, mp_bvec_iter_len((bvec), (iter)),		\
88 	      PAGE_SIZE - bvec_iter_offset((bvec), (iter)))
90 #define bvec_iter_page(bvec, iter)				\  argument
91 	(mp_bvec_iter_page((bvec), (iter)) +			\
92 	 mp_bvec_iter_page_idx((bvec), (iter)))
94 #define bvec_iter_bvec(bvec, iter)				\  argument
96 	.bv_page	= bvec_iter_page((bvec), (iter)),	\
97 	.bv_len		= bvec_iter_len((bvec), (iter)),	\
98 	.bv_offset	= bvec_iter_offset((bvec), (iter)),	\
165 static inline void bvec_advance(const struct bio_vec *bvec,  in bvec_advance()  argument
174 		bv->bv_page = bvec->bv_page + (bvec->bv_offset >> PAGE_SHIFT);  in bvec_advance()
175 		bv->bv_offset = bvec->bv_offset & ~PAGE_MASK;  in bvec_advance()
178 			   bvec->bv_len - iter_all->done);  in bvec_advance()
181 	if (iter_all->done == bvec->bv_len) {  in bvec_advance()
194 static inline void *bvec_kmap_local(struct bio_vec *bvec)  in bvec_kmap_local()  argument
196 	return kmap_local_page(bvec->bv_page) + bvec->bv_offset;  in bvec_kmap_local()
205 static inline void memcpy_from_bvec(char *to, struct bio_vec *bvec)  in memcpy_from_bvec()  argument
207 	memcpy_from_page(to, bvec->bv_page, bvec->bv_offset, bvec->bv_len);  in memcpy_from_bvec()
216 static inline void memcpy_to_bvec(struct bio_vec *bvec, const char *from)  in memcpy_to_bvec()  argument
218 	memcpy_to_page(bvec->bv_page, bvec->bv_offset, from, bvec->bv_len);  in memcpy_to_bvec()
227 static inline void memzero_bvec(struct bio_vec *bvec)  in memzero_bvec()  argument
229 	memzero_page(bvec->bv_page, bvec->bv_offset, bvec->bv_len);  in memzero_bvec()
238 static inline void *bvec_virt(struct bio_vec *bvec)  in bvec_virt()  argument
240 	WARN_ON_ONCE(PageHighMem(bvec->bv_page));  in bvec_virt()
241 	return page_address(bvec->bv_page) + bvec->bv_offset;  in bvec_virt()