taglinefilesource code
read2122drivers/char/mem.cint read1, read2;
read2127drivers/char/mem.cread2 = vread(buf + read1, (char *) ((unsigned long) file->f_pos), count - read1);
read2128drivers/char/mem.cif (read2 < 0)
read2129drivers/char/mem.creturn read2;
read2130drivers/char/mem.cfile->f_pos += read2;
read2131drivers/char/mem.creturn read1 + read2;