Post Syndicated from corbet original https://lwn.net/Articles/974512/

The problem of sharing page tables across processes has been discussed
numerous times over the years, Khaled Aziz said at the beginning of his 2024 Linux Storage,
Filesystem, Memory-Management and BPF Summit session on the topic. He
was there to, once again, talk about the proposed mshare() system call (which, in its
current form, is no longer actually a system call but the feature still
goes by that name) and to see what can be done to finally get it into the
mainline.