On Tue, Aug 23, 2016 at 12:06 AM, Borislav Petkov <[email protected]> wrote: > On Mon, Aug 22, 2016 at 11:52:29PM +0300, Alexey Dobriyan wrote: >> Apply alternatives at the call site instead of function body. >> Save branch per clean page. > > Any size increase to an allyesconfig vmlinux and increase to > alternatives application time? > > Booting with "debug-alternative" should help.
x86_64 allyesconfig kernel lists whole 56 calls to clear_page(). My usual kernel lists 8. There are tons copy_from_user/copy_to_user entries and POPCNT and CLAC/STAC, so I think those several dozens clear pages don't matter.
