1049   loff_t startpos;  in tmpfs_read()  local
1072   startpos = filep->f_pos;  in tmpfs_read()
1074   endpos   = startpos + buflen;  in tmpfs_read()
1079       nread  = endpos - startpos;  in tmpfs_read()
1084   if (LOS_CopyFromKernel(buffer, buflen, &tfo->tfo_data[startpos], nread) != 0)  in tmpfs_read()
1109   loff_t startpos;  in tmpfs_readpage()  local
1132   startpos = off;  in tmpfs_readpage()
1134   endpos   = startpos + PAGE_SIZE;  in tmpfs_readpage()
1139       nread  = endpos - startpos;  in tmpfs_readpage()
1144   if (LOS_CopyFromKernel(buffer, PAGE_SIZE, &tfo->tfo_data[startpos], nread) != 0)  in tmpfs_readpage()
1250   loff_t startpos;  in tmpfs_write()  local
1275   startpos = filep->f_pos;  in tmpfs_write()
1277   endpos   = startpos + buflen;  in tmpfs_write()
1279   if (startpos < 0)  in tmpfs_write()
1290       data  = (char *)malloc(startpos + alloc);  in tmpfs_write()
1298           ret = memcpy_s(data, startpos + alloc, tfo->tfo_data, tfo->tfo_size);  in tmpfs_write()
1307       if (startpos > tfo->tfo_size)  in tmpfs_write()
1309 …(void)memset_s(data + tfo->tfo_size, startpos + alloc - tfo->tfo_size, 0, startpos - tfo->tfo_size…  in tmpfs_write()
1313       tfo->tfo_size = startpos + alloc;  in tmpfs_write()
1317   if (LOS_CopyToKernel(&tfo->tfo_data[startpos], nwritten, buffer, nwritten) != 0)  in tmpfs_write()