57     unsigned int blksize;  in sysMapBlockFile()  local
73     if (fscanf(mapf, "%zu %u\n%u\n", &size, &blksize, &range_count) != 3) {  in sysMapBlockFile()
77     if (blksize != 0) {  in sysMapBlockFile()
78         blocks = ((size-1) / blksize) + 1;  in sysMapBlockFile()
80     if (size == 0 || blksize == 0 || blocks > SIZE_MAX / blksize || range_count == 0) {  in sysMapBlockFile()
82              size, blksize, range_count);  in sysMapBlockFile()
95     reserve = mmap64(NULL, blocks * blksize, PROT_NONE, MAP_PRIVATE | MAP_ANON, -1, 0);  in sysMapBlockFile()
105         munmap(reserve, blocks * blksize);  in sysMapBlockFile()
111     size_t remaining_size = blocks * blksize;  in sysMapBlockFile()
120         size_t length = (end - start) * blksize;  in sysMapBlockFile()
121         if (end <= start || (end - start) > SIZE_MAX / blksize || length > remaining_size) {  in sysMapBlockFile()
127 …oid* addr = mmap64(next, length, PROT_READ, MAP_PRIVATE | MAP_FIXED, fd, ((off64_t)start)*blksize);  in sysMapBlockFile()
145       munmap(reserve, blocks * blksize);  in sysMapBlockFile()