linux-kernel - Re: [PATCH v4] hugetlbfs: check for shareable lock before calling huge_pmd

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Message-ID: <20251013093308.4412-1-kartikey406@gmail.com>
Date: Mon, 13 Oct 2025 15:03:08 +0530
From: Deepanshu Kartikey <kartikey406@...il.com>
To: =muchun.song@...ux.dev,
	osalvador@...e.de,
	akpm@...ux-foundation.org,
	broonie@...nel.org,
	david@...hat.com
Cc: linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	syzbot+f26d7c75c26ec19790e7@...kaller.appspotmail.com
Subject: Re: [PATCH v4] hugetlbfs: check for shareable lock before calling huge_pmd_unshare()

Hi David,

That makes a lot of sense - moving the assertions after the early return 
checks is cleaner since the locks are only needed when actual unsharing 
work happens.

Should I send a v5 with your suggested change?

Thanks,
Deepanshu