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Date:   Thu, 19 Apr 2018 01:42:51 +0300
From:   Cyrill Gorcunov <gorcunov@gmail.com>
To:     Andrew Morton <akpm@linux-foundation.org>
Cc:     LKML <linux-kernel@vger.kernel.org>,
        Michal Hocko <mhocko@kernel.org>,
        Randy Dunlap <rdunlap@infradead.org>,
        Andrey Vagin <avagin@openvz.org>,
        Andrew Morton <akpm@linuxfoundation.org>,
        Pavel Emelyanov <xemul@virtuozzo.com>,
        Michael Kerrisk <mtk.manpages@gmail.com>,
        Yang Shi <yang.shi@linux.alibaba.com>
Subject: Re: [PATCH v2] prctl: Deprecate non PR_SET_MM_MAP operations
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 <20180418152820.e8f317534c01696d4835a40f@linux-foundation.org>
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On Wed, Apr 18, 2018 at 03:28:20PM -0700, Andrew Morton wrote:
> On Thu, 5 Apr 2018 21:26:51 +0300 Cyrill Gorcunov <gorcunov@gmail.com> wrote:
> 
> > Subject: [PATCH v2] prctl: Deprecate non PR_SET_MM_MAP operations
> 
> s/Deprecate/remove/ !

Thanks!

> > 
> > Googling didn't reveal some other users of this operation
> > so I think it should be safe to remove this interface.
> 
> It does seem a bit sudden.  We could just add a "this interface is
> scheduled for removal" warning, then delete the code for real later in
> the year. To give people time to migrate or to complain to us.

Yes, I remember this rule of deprecation but taking into account
how special this code is (and I spent significant amount of time
trying to find a real example of its usage outside of criu)
I think it should be safe to simply remove it. Surely I won't
ever do this with some common syscall.