On Sat, Nov 20, 2021 at 12:12:30PM -0800, Shakeel Butt wrote: > This patch let such applications not worry about the low level handling > of THPs in the kernel and splits the THPs synchronously on > MADV_DONTNEED. I don't mind the synchronous split, but I have concerns about the implementation. I don't think it's worth another pointer in task_struct. It's also the case that splitting is likely to succeed, so I think a better implementation would try to split and then put the page on the global deferred list if splitting fails.
