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Date: Mon, 25 May 2020 20:50:13 +0200 From: "Michael Kerrisk (man-pages)" <mtk.manpages@...il.com> To: "Kirill A. Shutemov" <kirill@...temov.name> Cc: Ian Rogers <irogers@...gle.com>, Rik van Riel <riel@...hat.com>, linux-man <linux-man@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, Linux-MM <linux-mm@...ck.org>, Linux API <linux-api@...r.kernel.org>, nilal@...hat.com, Florian Weimer <fweimer@...hat.com>, Colm MacCártaigh <colm@...costs.net>, Mike Kravetz <mike.kravetz@...cle.com> Subject: Re: [PATCH] proc.5: add "wf" to VmFlags in /proc/[pid]/smaps On Mon, 25 May 2020 at 16:59, Kirill A. Shutemov <kirill@...temov.name> wrote: > > On Mon, May 25, 2020 at 03:50:38PM +0200, Michael Kerrisk (man-pages) wrote: > > On 5/22/20 1:13 AM, Ian Rogers wrote: > > > On Thu, May 21, 2020 at 3:25 PM Ian Rogers <irogers@...gle.com> wrote: > > >> > > >> This patch documents a flag added in the following kernel commit: > > >> > > >> commit d2cd9ede6e193dd7d88b6d27399e96229a551b19 > > >> Author: Rik van Riel <riel@...hat.com> > > >> Date: Wed Sep 6 16:25:15 2017 -0700 > > >> > > >> mm,fork: introduce MADV_WIPEONFORK > > >> > > >> This was already documented in man2/madvise.2 in the commit: > > >> > > >> commit c0c4f6c29c494c466f3a2a6273c5b55b76a72927 > > >> Author: Rik van Riel <riel@...hat.com> > > >> Date: Tue Sep 19 20:32:00 2017 +0200 > > >> > > >> madvise.2: Document MADV_WIPEONFORK and MADV_KEEPONFORK > > >> > > >> Signed-off-by: Ian Rogers <irogers@...gle.com> > > > > > > Doing a quick audit of fs/proc/task_mmu.c having noticed this flag was > > > missing I note: > > > - "mp" isn't documented, only possible with INTEL_MPX > > > - "nl" is documented but not present in show_smap_vma_flags > > > - "um" and "uw" aren't documented > > > > I took a shot at fixing these: > > > > > > mp - MPX-specific VMA (x86, since Linux 3.19) > > This one is gone. The patch to remove leftovers of MPX is linux-next. Thanks, Kirill. I'll simply remove that entry. Cheers, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/
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