Re: [PATCH] mm/slub: embed __slab_alloc to its caller

[Christoph Lameter]

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.