134 	void *src, *tmp;  in z_erofs_handle_inplace_io()  local
161 	src = erofs_vm_map_ram(rq->in, nrpages_in);  in z_erofs_handle_inplace_io()
162 	if (!src)  in z_erofs_handle_inplace_io()
165 	return src;  in z_erofs_handle_inplace_io()
170 	src = erofs_get_pcpubuf(nrpages_in);  in z_erofs_handle_inplace_io()
171 	if (!src) {  in z_erofs_handle_inplace_io()
177 	tmp = src;  in z_erofs_handle_inplace_io()
194 	return src;  in z_erofs_handle_inplace_io()
200 	u8 *headpage, *src;  in z_erofs_lz4_decompress()  local
224 	src = z_erofs_handle_inplace_io(rq, headpage, &inputmargin, &maptype,  in z_erofs_lz4_decompress()
226 	if (IS_ERR(src))  in z_erofs_lz4_decompress()
227 		return PTR_ERR(src);  in z_erofs_lz4_decompress()
231 		ret = LZ4_decompress_safe_partial(src + inputmargin, out,  in z_erofs_lz4_decompress()
234 		ret = LZ4_decompress_safe(src + inputmargin, out,  in z_erofs_lz4_decompress()
242 			       16, 1, src + inputmargin, rq->inputsize, true);  in z_erofs_lz4_decompress()
252 		kunmap_atomic(src);  in z_erofs_lz4_decompress()
254 		vm_unmap_ram(src, PAGE_ALIGN(rq->inputsize) >> PAGE_SHIFT);  in z_erofs_lz4_decompress()
256 		erofs_put_pcpubuf(src);  in z_erofs_lz4_decompress()
373 	unsigned char *src, *dst;  in z_erofs_shifted_transform()  local
385 	src = kmap_atomic(*rq->in);  in z_erofs_shifted_transform()
388 		memcpy(dst + rq->pageofs_out, src, righthalf);  in z_erofs_shifted_transform()
395 			memmove(src, src + righthalf, rq->pageofs_out);  in z_erofs_shifted_transform()
398 			memcpy(dst, src + righthalf, rq->pageofs_out);  in z_erofs_shifted_transform()
402 	kunmap_atomic(src);  in z_erofs_shifted_transform()