usb/gadget/f_mass_storage.c

705 	unsigned int		amount;
739 		 * Try to read the remaining amount.
746 		amount = min(amount_left, FSG_BUFLEN);
749 			amount = min(amount, (unsigned int) PAGE_CACHE_SIZE -
762 		if (amount == 0) {
774 				      lldiv(amount, curlun->blksize),
781 		VLDBG(curlun, "file read %u @ %llu -> %d\n", amount,
789 		} else if (nread < amount) {
791 					(int) nread, amount);
801 		if (nread < amount) {
833 	unsigned int		amount;
877 			 * Try to get the remaining amount.
885 			amount = min(amount_left_to_req, FSG_BUFLEN);
888 				amount = min(amount,
891 			if (amount == 0) {
898 			amount -= (amount & (curlun->blksize - 1));
899 			if (amount == 0) {
908 			usb_offset += amount;
909 			common->usb_amount_left -= amount;
910 			amount_left_to_req -= amount;
914 			/* amount is always divisible by 512, hence by
916 			bh->outreq->length = amount;
917 			bh->bulk_out_intended_length = amount;
943 			amount = bh->outreq->actual;
948 					       lldiv(amount, curlun->blksize),
954 			VLDBG(curlun, "file write %u @ %llu -> %d\n", amount,
962 			} else if (nwritten < amount) {
964 						(int) nwritten, amount);
973 			if (nwritten < amount) {
974 				printf("nwritten:%zd amount:%u\n", nwritten,
975 				       amount);
1015 	unsigned int		amount;
1048 		 * Try to read the remaining amount, but not more than
1053 		amount = min(amount_left, FSG_BUFLEN);
1054 		if (amount == 0) {
1064 				      lldiv(amount, curlun->blksize),
1070 		VLDBG(curlun, "file read %u @ %llu -> %d\n", amount,
1077 		} else if (nread < amount) {
1079 					(int) nread, amount);
1465 	u32			amount;
1491 			amount = min(common->usb_amount_left, FSG_BUFLEN);
1493 			/* amount is always divisible by 512, hence by
1495 			bh->outreq->length = amount;
1496 			bh->bulk_out_intended_length = amount;
1504 			common->usb_amount_left -= amount;