101 #define __bvec_iter_bvec(bvec, iter)	(&(bvec)[(iter).bi_idx])  argument
104 #define mp_bvec_iter_page(bvec, iter)				\  argument
105 	(__bvec_iter_bvec((bvec), (iter))->bv_page)
107 #define mp_bvec_iter_len(bvec, iter)				\  argument
109 	    __bvec_iter_bvec((bvec), (iter))->bv_len - (iter).bi_bvec_done)
111 #define mp_bvec_iter_offset(bvec, iter)				\  argument
112 	(__bvec_iter_bvec((bvec), (iter))->bv_offset + (iter).bi_bvec_done)
114 #define mp_bvec_iter_page_idx(bvec, iter)			\  argument
115 	(mp_bvec_iter_offset((bvec), (iter)) / PAGE_SIZE)
117 #define mp_bvec_iter_bvec(bvec, iter)				\  argument
119 	.bv_page	= mp_bvec_iter_page((bvec), (iter)),	\
120 	.bv_len		= mp_bvec_iter_len((bvec), (iter)),	\
121 	.bv_offset	= mp_bvec_iter_offset((bvec), (iter)),	\
125  #define bvec_iter_offset(bvec, iter)				\  argument
126 	(mp_bvec_iter_offset((bvec), (iter)) % PAGE_SIZE)
128 #define bvec_iter_len(bvec, iter)				\  argument
129 	min_t(unsigned, mp_bvec_iter_len((bvec), (iter)),		\
130 	      PAGE_SIZE - bvec_iter_offset((bvec), (iter)))
132 #define bvec_iter_page(bvec, iter)				\  argument
133 	(mp_bvec_iter_page((bvec), (iter)) +			\
134 	 mp_bvec_iter_page_idx((bvec), (iter)))
136 #define bvec_iter_bvec(bvec, iter)				\  argument
138 	.bv_page	= bvec_iter_page((bvec), (iter)),	\
139 	.bv_len		= bvec_iter_len((bvec), (iter)),	\
140 	.bv_offset	= bvec_iter_offset((bvec), (iter)),	\
207 static inline void bvec_advance(const struct bio_vec *bvec,  in bvec_advance()  argument
216 		bv->bv_page = bvec->bv_page + (bvec->bv_offset >> PAGE_SHIFT);  in bvec_advance()
217 		bv->bv_offset = bvec->bv_offset & ~PAGE_MASK;  in bvec_advance()
220 			   bvec->bv_len - iter_all->done);  in bvec_advance()
223 	if (iter_all->done == bvec->bv_len) {  in bvec_advance()
236 static inline void *bvec_kmap_local(struct bio_vec *bvec)  in bvec_kmap_local()  argument
238 	return kmap_local_page(bvec->bv_page) + bvec->bv_offset;  in bvec_kmap_local()
247 static inline void memcpy_from_bvec(char *to, struct bio_vec *bvec)  in memcpy_from_bvec()  argument
249 	memcpy_from_page(to, bvec->bv_page, bvec->bv_offset, bvec->bv_len);  in memcpy_from_bvec()
258 static inline void memcpy_to_bvec(struct bio_vec *bvec, const char *from)  in memcpy_to_bvec()  argument
260 	memcpy_to_page(bvec->bv_page, bvec->bv_offset, from, bvec->bv_len);  in memcpy_to_bvec()
269 static inline void memzero_bvec(struct bio_vec *bvec)  in memzero_bvec()  argument
271 	memzero_page(bvec->bv_page, bvec->bv_offset, bvec->bv_len);  in memzero_bvec()
280 static inline void *bvec_virt(struct bio_vec *bvec)  in bvec_virt()  argument
282 	WARN_ON_ONCE(PageHighMem(bvec->bv_page));  in bvec_virt()
283 	return page_address(bvec->bv_page) + bvec->bv_offset;  in bvec_virt()
290 static inline phys_addr_t bvec_phys(const struct bio_vec *bvec)  in bvec_phys()  argument
297 	return PFN_PHYS(page_to_pfn(bvec->bv_page)) + bvec->bv_offset;  in bvec_phys()