linux-kernel - Re: [PATCH v2 2/4] mm/vmalloc: add support for __GFP

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Message-ID: <YZ1KZKkHSHcSBnBV@dhcp22.suse.cz>
Date:   Tue, 23 Nov 2021 21:09:08 +0100
From:   Michal Hocko <mhocko@...e.com>
To:     Uladzislau Rezki <urezki@...il.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Dave Chinner <david@...morbit.com>, Neil Brown <neilb@...e.de>,
        Christoph Hellwig <hch@....de>, linux-fsdevel@...r.kernel.org,
        linux-mm@...ck.org, LKML <linux-kernel@...r.kernel.org>,
        Ilya Dryomov <idryomov@...il.com>,
        Jeff Layton <jlayton@...nel.org>
Subject: Re: [PATCH v2 2/4] mm/vmalloc: add support for __GFP_NOFAIL

On Tue 23-11-21 20:01:50, Uladzislau Rezki wrote:
[...]
> I have raised two concerns in our previous discussion about this change,
> well that is sad...

I definitely didn't mean to ignore any of the feedback. IIRC we were in
a disagreement in the failure mode for retry loop - i.e. free all the
allocated pages in case page table pages cannot be allocated. I still
maintain my position and until there is a wider consensus on that I will
keep my current implementation. The other concern was about failures
warning but that shouldn't be a problem when basing on the current Linus
tree. Am I missing something?
-- 
Michal Hocko
SUSE Labs