psz = PAGE_ALIGN(part->size);
if (part->memfd >= 0)
- p = mmap(NULL, psz, PROT_READ, MAP_SHARED, part->memfd, 0);
+ p = mmap(NULL, psz, PROT_READ, MAP_PRIVATE, part->memfd, 0);
else if (part->is_zero)
p = mmap(NULL, psz, PROT_READ, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
else