From: Matthew Wilcox <willy@infradead.org>
To: Randy Dunlap <rdunlap@infradead.org>
Cc: linux-mm@kvack.org, Matthew Wilcox <mawilcox@microsoft.com>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 0/4] Split page_type out from mapcount
Date: Wed, 28 Feb 2018 17:31:15 -0800 [thread overview]
Message-ID: <20180301013115.GA2946@bombadil.infradead.org> (raw)
In-Reply-To: <06c145aa-db40-df72-b626-da9d45f9111d@infradead.org>
On Wed, Feb 28, 2018 at 03:22:49PM -0800, Randy Dunlap wrote:
> On 02/28/2018 02:31 PM, Matthew Wilcox wrote:
> > From: Matthew Wilcox <mawilcox@microsoft.com>
> >
> > I want to use the _mapcount field to record what a page is in use as.
> > This can help with debugging and we can also expose that information to
> > userspace through /proc/kpageflags to help diagnose memory usage (not
> > included as part of this patch set).
>
> Hey,
>
> Will there be updates to tools/vm/ also, or are these a different set of
> (many) flags?
Those KPF flags are the ones I was talking about. I haven't looked into
what it takes to assign those flags yet.
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next prev parent reply other threads:[~2018-03-01 1:31 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-28 22:31 Matthew Wilcox
2018-02-28 22:31 ` [PATCH v3 1/4] s390: Use _refcount for pgtables Matthew Wilcox
2018-03-01 12:53 ` Kirill A. Shutemov
2018-03-01 14:04 ` Martin Schwidefsky
2018-03-01 14:28 ` Kirill A. Shutemov
2018-03-01 14:39 ` Martin Schwidefsky
2018-02-28 22:31 ` [PATCH v3 2/4] mm: Split page_type out from _map_count Matthew Wilcox
2018-02-28 22:31 ` [PATCH v3 3/4] mm: Mark pages allocated through vmalloc Matthew Wilcox
2018-02-28 22:31 ` [PATCH v3 4/4] mm: Mark pages in use for page tables Matthew Wilcox
2018-02-28 23:22 ` [PATCH v3 0/4] Split page_type out from mapcount Randy Dunlap
2018-03-01 1:31 ` Matthew Wilcox [this message]
2018-03-01 7:17 ` Martin Schwidefsky
2018-03-01 8:00 ` Martin Schwidefsky
2018-03-01 12:44 ` Kirill A. Shutemov
2018-03-01 14:47 ` Martin Schwidefsky
2018-03-01 14:50 ` Matthew Wilcox
2018-03-01 15:02 ` Martin Schwidefsky
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