linux-kernel - Re: [RFC 0/4] add static huge zero folio support

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Message-ID: <vocblxknnal2t4756bkqcdajt2gkctp2wdjhfg3xkp66j47qk3@saj77wmrflqz>
Date: Wed, 23 Jul 2025 11:08:23 +0200
From: "Pankaj Raghav (Samsung)" <kernel@...kajraghav.com>
To: David Hildenbrand <david@...hat.com>
Cc: Suren Baghdasaryan <surenb@...gle.com>, 
	Ryan Roberts <ryan.roberts@....com>, Mike Rapoport <rppt@...nel.org>, Michal Hocko <mhocko@...e.com>, 
	Thomas Gleixner <tglx@...utronix.de>, Nico Pache <npache@...hat.com>, Dev Jain <dev.jain@....com>, 
	Baolin Wang <baolin.wang@...ux.alibaba.com>, Borislav Petkov <bp@...en8.de>, Ingo Molnar <mingo@...hat.com>, 
	"H . Peter Anvin" <hpa@...or.com>, Vlastimil Babka <vbabka@...e.cz>, Zi Yan <ziy@...dia.com>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, 
	Andrew Morton <akpm@...ux-foundation.org>, "Liam R . Howlett" <Liam.Howlett@...cle.com>, 
	Jens Axboe <axboe@...nel.dk>, linux-kernel@...r.kernel.org, linux-mm@...ck.org, 
	willy@...radead.org, x86@...nel.org, linux-block@...r.kernel.org, 
	linux-fsdevel@...r.kernel.org, "Darrick J . Wong" <djwong@...nel.org>, mcgrof@...nel.org, 
	gost.dev@...sung.com, hch@....de, Pankaj Raghav <p.raghav@...sung.com>
Subject: Re: [RFC 0/4] add static huge zero folio support

> > 
> > I will send patches to individual subsystems using the huge_zero_folio
> > once this gets upstreamed.
> > 
> > Looking forward to some feedback.
> 
> Please run scripts/checkpatch.pl on your patches.
> 
> There are quite some warning for patch #2 and #3, in particular, around
> using spaces vs. tabs.

Ah, you are right. I usually run it as a post-commit hook but I forgot
to add it when I changed my workflow.

Thanks for pointing it out. I also got a unused variable warning for huge_zero_static_fail_count
as we don't use it when CONFIG_STATIC_HUGE_ZERO_FOLIO is disabled.

I will change them in the new version.

--
Pankaj