From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ob0-f179.google.com (mail-ob0-f179.google.com [209.85.214.179]) by kanga.kvack.org (Postfix) with ESMTP id 7E5F06B006C for ; Fri, 27 Feb 2015 05:37:57 -0500 (EST) Received: by mail-ob0-f179.google.com with SMTP id wp4so17437567obc.10 for ; Fri, 27 Feb 2015 02:37:57 -0800 (PST) Received: from mail-oi0-x231.google.com (mail-oi0-x231.google.com. [2607:f8b0:4003:c06::231]) by mx.google.com with ESMTPS id l138si1862559oib.128.2015.02.27.02.37.56 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 27 Feb 2015 02:37:56 -0800 (PST) Received: by mail-oi0-f49.google.com with SMTP id v63so14825860oia.8 for ; Fri, 27 Feb 2015 02:37:56 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <1424958666-18241-2-git-send-email-vbabka@suse.cz> References: <1424958666-18241-1-git-send-email-vbabka@suse.cz> <1424958666-18241-2-git-send-email-vbabka@suse.cz> From: Michael Kerrisk Date: Fri, 27 Feb 2015 11:37:35 +0100 Message-ID: Subject: Re: [PATCH 1/4] mm, documentation: clarify /proc/pid/status VmSwap limitations Content-Type: text/plain; charset=UTF-8 Sender: owner-linux-mm@kvack.org List-ID: To: Vlastimil Babka Cc: linux-mm , Jerome Marchand , Linux Kernel , Andrew Morton , linux-doc , Hugh Dickins , Michal Hocko , "Kirill A. Shutemov" , Cyrill Gorcunov , Randy Dunlap , linux-s390 , Martin Schwidefsky , Heiko Carstens , Peter Zijlstra , Paul Mackerras , Arnaldo Carvalho de Melo , Oleg Nesterov , Linux API [CC += linux-api@] On Thu, Feb 26, 2015 at 2:51 PM, Vlastimil Babka wrote: > The documentation for /proc/pid/status does not mention that the value of > VmSwap counts only swapped out anonymous private pages and not shmem. This is > not obvious, so document this limitation. > > Signed-off-by: Vlastimil Babka > --- > I've noticed that proc(5) manpage is currently missing the VmSwap field > altogether. > > Documentation/filesystems/proc.txt | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt > index a07ba61..d4f56ec 100644 > --- a/Documentation/filesystems/proc.txt > +++ b/Documentation/filesystems/proc.txt > @@ -231,6 +231,8 @@ Table 1-2: Contents of the status files (as of 2.6.30-rc7) > VmLib size of shared library code > VmPTE size of page table entries > VmSwap size of swap usage (the number of referred swapents) > + by anonymous private data (shmem swap usage is not > + included) > Threads number of threads > SigQ number of signals queued/max. number for queue > SigPnd bitmap of pending signals for the thread > -- > 2.1.4 > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@kvack.org. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: email@kvack.org -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Author of "The Linux Programming Interface", http://blog.man7.org/ -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org