Messages in this thread | | | Date | Tue, 11 Aug 2020 14:40:14 -0700 (PDT) | From | David Rientjes <> | Subject | Re: [PATCH] mm/slub: fix missing ALLOC_SLOWPATH stat when bulk alloc |
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On Tue, 11 Aug 2020, wuyun.wu@huawei.com wrote:
> From: Abel Wu <wuyun.wu@huawei.com> > > The ALLOC_SLOWPATH statistics is missing in bulk allocation now. > Fix it by doing statistics in alloc slow path. > > Signed-off-by: Abel Wu <wuyun.wu@huawei.com> > --- > mm/slub.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/mm/slub.c b/mm/slub.c > index df93a5a0e9a4..5d89e4064f83 100644 > --- a/mm/slub.c > +++ b/mm/slub.c > @@ -2600,6 +2600,8 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, > void *freelist; > struct page *page; > > + stat(s, ALLOC_SLOWPATH); > + > page = c->page; > if (!page) { > /* > @@ -2788,7 +2790,6 @@ static __always_inline void *slab_alloc_node(struct kmem_cache *s, > page = c->page; > if (unlikely(!object || !node_match(page, node))) { > object = __slab_alloc(s, gfpflags, node, addr, c); > - stat(s, ALLOC_SLOWPATH); > } else { > void *next_object = get_freepointer_safe(s, object); >
Acked-by: David Rientjes <rientjes@google.com>
> -- > 2.28.0.windows.1
Lol :)
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