Lazy zeroing is actually a special case of lazy copying known as Copy on Write. Any shared data, not just zeros, can be shared by ‘many-to-one’ read-only mappings, then at the time of write (if it ever happens), we copy said data.
Lazy zeroing is actually a special case of lazy copying known as Copy on Write. Any shared data, not just zeros, can be shared by ‘many-to-one’ read-only mappings, then at the time of write (if it ever happens), we copy said data.