linux-kernel - Re: [PATCH] mm: mmap: remove verify_mm

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Date:   Wed, 14 Nov 2018 14:20:22 -0800 (PST)
From:   David Rientjes <rientjes@...gle.com>
To:     Yangtao Li <tiny.windzz@...il.com>
cc:     akpm@...ux-foundation.org, mhocko@...e.com,
        dan.j.williams@...el.com, linux@...inikbrodowski.net,
        dave.hansen@...ux.intel.com, dwmw@...zon.co.uk, mhocko@...nel.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm: mmap: remove verify_mm_writelocked()

On Thu, 8 Nov 2018, Yangtao Li wrote:

> We should get rid of this function. It no longer serves its purpose.This
> is a historical artifact from 2005 where do_brk was called outside of
> the core mm.We do have a proper abstraction in vm_brk_flags and that one
> does the locking properly.So there is no need to use this function.
> 
> Signed-off-by: Yangtao Li <tiny.windzz@...il.com>

Acked-by: David Rientjes <rientjes@...gle.com>