linux-kernel - Re: [PATCH v4 3/4] mm: Mark pages allocated through vmalloc

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Message-ID: <20180302082014.4zlhvot6lzg75x66@node.shutemov.name>
Date:   Fri, 2 Mar 2018 11:20:14 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     linux-mm@...ck.org, Matthew Wilcox <mawilcox@...rosoft.com>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        linux-kernel@...r.kernel.org,
        Fengguang Wu <fengguang.wu@...el.com>,
        linux-api@...r.kernel.org
Subject: Re: [PATCH v4 3/4] mm: Mark pages allocated through vmalloc

On Thu, Mar 01, 2018 at 01:15:22PM -0800, Matthew Wilcox wrote:
> From: Matthew Wilcox <mawilcox@...rosoft.com>
> 
> Use a bit in page_type to mark pages which have been allocated through
> vmalloc.  This can be helpful when debugging crashdumps or analysing
> memory fragmentation.  Add a KPF flag to report these pages to userspace
> and update page-types.c to interpret that flag.
> 
> Signed-off-by: Matthew Wilcox <mawilcox@...rosoft.com>

Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>

-- 
 Kirill A. Shutemov