linux-kernel - Re: [PATCH] mm: don't call should_failslab() for !CONFIG

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Message-ID: <20211007163654.44wiufdolvqkddnd@meerkat.local>
Date:   Thu, 7 Oct 2021 12:36:54 -0400
From:   Konstantin Ryabitsev <konstantin@...uxfoundation.org>
To:     Vlastimil Babka <vbabka@...e.cz>
Cc:     Jens Axboe <axboe@...nel.dk>, LKML <linux-kernel@...r.kernel.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Christoph Lameter <cl@...ux.com>,
        David Rientjes <rientjes@...gle.com>,
        Pekka Enberg <penberg@...nel.org>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        Howard McLauchlan <hmclauchlan@...com>, bpf@...r.kernel.org
Subject: Re: [PATCH] mm: don't call should_failslab() for !CONFIG_FAILSLAB

On Thu, Oct 07, 2021 at 05:32:52PM +0200, Vlastimil Babka wrote:
> On 10/5/21 17:31, Jens Axboe wrote:
> > Allocations can be a very hot path, and this out-of-line function
> > call is noticeable.
> > 
> > Signed-off-by: Jens Axboe <axboe@...nel.dk>
> 
> It used to be inline b4 (hi, Konstantin!)

Congratulations, you made me look. :)

-K