> On Feb 2, 2021, at 6:11 PM, Christoph Lameter <cl@xxxxxxxxx> wrote: > > On Tue, 2 Feb 2021, Abel Wu wrote: > >> Since slab_alloc_node() is the only caller of __slab_alloc(), embed >> __slab_alloc() to its caller to save function call overhead. This >> will also expand the caller's code block size a bit, but hackbench >> tests on both host and guest didn't show a difference w/ or w/o >> this patch. > > slab_alloc_node is an always_inline function. It is intentional that only > the fast path was inlined and not the slow path. Oh I got it. Thanks for your excellent explanation. Best Regards, Abel
