Sharing page tables with msharefs

Posted Jul 21, 2022 14:45 UTC (Thu) by rwmj (subscriber, #5474)
Parent article: Sharing page tables with msharefs

> Automatic sharing would need to have different semantics, though; otherwise applications will be surprised when an mprotect() or mremap() call in another process changes their mappings.

Wouldn't any automatic sharing solution have to spot this case and "unshare" the PTEs?

Sharing page tables with msharefs

Posted Jul 22, 2022 10:13 UTC (Fri) by flussence (guest, #85566) [Link]

It sounds like there's a lot of overlap here with Transparent Hugepages, which had to deal with similar merging and splitting.