linux-kernel - Re: [PATCH] memcg: page_alloc: skip bulk allocator for __GFP

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Message-ID: <YWfZr+lL2lrBhSc/@dhcp22.suse.cz>
Date:   Thu, 14 Oct 2021 09:18:07 +0200
From:   Michal Hocko <mhocko@...e.com>
To:     Vasily Averin <vvs@...tuozzo.com>
Cc:     Shakeel Butt <shakeelb@...gle.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Uladzislau Rezki <urezki@...il.com>,
        Roman Gushchin <guro@...com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        cgroups@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] memcg: page_alloc: skip bulk allocator for __GFP_ACCOUNT

On Thu 14-10-21 10:05:21, Vasily Averin wrote:
[...]
> > +	/* Bulk allocator does not support memcg accounting. */
> > +	if (unlikely(gfp & __GFP_ACCOUNT))
> > +		goto out;
> > +
> 
> May be (memcg_kmem_enabled() && (gfp & __GFP_ACCOUNT)) check is better here?

Yes please

-- 
Michal Hocko
SUSE Labs