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Message-ID: <87wp20e9wf.fsf@concordia.ellerman.id.au> Date: Wed, 06 Dec 2017 15:51:44 +1100 From: Michael Ellerman <mpe@...erman.id.au> To: Cyril Hrubis <chrubis@...e.cz>, Michal Hocko <mhocko@...nel.org> Cc: Kees Cook <keescook@...omium.org>, Linux API <linux-api@...r.kernel.org>, Khalid Aziz <khalid.aziz@...cle.com>, Andrew Morton <akpm@...ux-foundation.org>, Russell King - ARM Linux <linux@...linux.org.uk>, Andrea Arcangeli <aarcange@...hat.com>, Linux-MM <linux-mm@...ck.org>, LKML <linux-kernel@...r.kernel.org>, linux-arch <linux-arch@...r.kernel.org>, Florian Weimer <fweimer@...hat.com>, John Hubbard <jhubbard@...dia.com>, Abdul Haleem <abdhalee@...ux.vnet.ibm.com>, Joel Stanley <joel@....id.au> Subject: Re: [PATCH 0/2] mm: introduce MAP_FIXED_SAFE Cyril Hrubis <chrubis@...e.cz> writes: > Hi! >> > MAP_FIXED_UNIQUE >> > MAP_FIXED_ONCE >> > MAP_FIXED_FRESH >> >> Well, I can open a poll for the best name, but none of those you are >> proposing sound much better to me. Yeah, naming sucks... > > Given that MAP_FIXED replaces the previous mapping MAP_FIXED_NOREPLACE > would probably be a best fit. Yeah that could work. I prefer "no clobber" as I just suggested, because the existing MAP_FIXED doesn't politely "replace" a mapping, it destroys the current one - which you or another thread may be using - and clobbers it with the new one. cheers
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