On 04.11.2021 01:25, Sean Christopherson wrote:
From: Maciej S. Szmigiero <maciej.szmigiero@xxxxxxxxxx> There is no need to copy the whole memslot data after releasing slots_arch_lock for a moment to install temporary memslots copy in kvm_set_memslot() since this lock only protects the arch field of each memslot. Just resync this particular field after reacquiring slots_arch_lock. Note, this also eliminates the need to manually clear the INVALID flag when restoring memslots; the "setting" of the INVALID flag was an unwanted side effect of copying the entire memslots. Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@xxxxxxxxxx> [sean: tweak shortlog, note INVALID flag in changelog, revert comment]
This updated patch also open-codes kvm_copy_memslots(), which my previous version didn't. I think it's worth mentioning this in the change log, too. Thanks, Maciej
