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Message-ID: <CACSyD1M9ad6wTeT-jAtAyWz2LztLrRok8bVT56+Xbx-NReRe7g@mail.gmail.com>
Date: Mon, 10 Jul 2023 22:59:18 +0800
From: 贺中坤 <hezhongkun.hzk@...edance.com>
To: Michal Hocko <mhocko@...e.com>
Cc: minchan@...nel.org, senozhatsky@...omium.org, david@...hat.com,
yosryahmed@...gle.com, linux-mm@...ck.org,
linux-kernel@...r.kernel.org
Subject: Re: [External] Re: [RFC PATCH 2/2] zram: charge the compressed RAM to
the page's memcgroup
>
> AFAICS your obj_cgroup_charge_zram doesn't have gfp argument.
>
> Anyway, memalloc_noreclaim_save is an abuse IMHO (the primary purpose of
> the flag is to prevent recursion into the memory reclaim). Do you really
> can not perform any memory recalim to trigger to free up some memory if
> the memcg is at the hard limit boundary?
>
Got it . I agree, memalloc_noreclaim_save should not be used, but return nomem
directly,which is more clear and satisfies both direct and indirect usage.
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