From: Matthew Wilcox <willy@infradead.org>
To: Yu Zhao <yuzhao@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Hugh Dickins <hughd@google.com>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
Michal Hocko <mhocko@suse.com>,
Dan Williams <dan.j.williams@intel.com>,
Pavel Tatashin <pasha.tatashin@oracle.com>,
Souptick Joarder <jrdr.linux@gmail.com>,
Logan Gunthorpe <logang@deltatee.com>,
Keith Busch <keith.busch@intel.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm: remove pte_lock_deinit()
Date: Wed, 28 Nov 2018 18:42:22 -0800 [thread overview]
Message-ID: <20181129024222.GJ10377@bombadil.infradead.org> (raw)
In-Reply-To: <20181128235525.58780-1-yuzhao@google.com>
On Wed, Nov 28, 2018 at 04:55:25PM -0700, Yu Zhao wrote:
> Pagetable page doesn't touch page->mapping or have any used field
> that overlaps with it. No need to clear mapping in dtor. In fact,
> doing so might mask problems that otherwise would be detected by
> bad_page().
>
> Signed-off-by: Yu Zhao <yuzhao@google.com>
Reviewed-by: Matthew Wilcox <willy@infradead.org>
I do have plans to use page->mapping for pt_mm, but this patch won't
get in my way when I find the round tuits to do that work.
next prev parent reply other threads:[~2018-11-29 2:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-28 23:55 [PATCH] mm: remove pte_lock_deinit() Yu Zhao
2018-11-29 2:42 ` Matthew Wilcox [this message]
2018-11-29 8:39 ` Michal Hocko
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