linux-kernel - Re: [PATCH] mm: khugepaged: skip huge page collapse for special files

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Message-ID: <YXnGfaw5fh8aBNnG@casper.infradead.org>
Date:   Wed, 27 Oct 2021 22:37:01 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Yang Shi <shy828301@...il.com>
Cc:     Hugh Dickins <hughd@...gle.com>, Hao Sun <sunhao.th@...il.com>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Song Liu <songliubraving@...com>,
        Andrea Righi <andrea.righi@...onical.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux MM <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        stable <stable@...r.kernel.org>
Subject: Re: [PATCH] mm: khugepaged: skip huge page collapse for special files

On Wed, Oct 27, 2021 at 02:32:02PM -0700, Yang Shi wrote:
> > This doesn't make sense to me.  if vma->vm_file, we already returned,
> > so this is dead code.
> 
> Yes, Song mentioned the same thing. Fixed by an incremental patch.

I saw that after I sent this.  My email sometimes arrives slowly.