On Thu, Mar 05, 2020 at 11:03:54AM -0800, Sean Christopherson wrote: > We've also discussed taking a file descriptor to hold the backing, but > unless I'm misreading the pagecache code, that doesn't solve the incorrect > accounting problem because the current task, i.e. evicting task, would be > charged. In other words, whether the backing is kernel or user controlled > is purely an ABI question. Even if the file is owned by a different process the account happens to "current"? /Jarkko
