linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: "Kleen, Andi" <andi.kleen@intel.com>
To: "Tang, Feng" <feng.tang@intel.com>, Qian Cai <cai@lca.pw>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Michal Hocko <mhocko@suse.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Matthew Wilcox <willy@infradead.org>,
	Mel Gorman <mgorman@suse.de>, Kees Cook <keescook@chromium.org>,
	Luis Chamberlain <mcgrof@kernel.org>,
	Iurii Zaikin <yzaikin@google.com>,
	"Chen, Tim C" <tim.c.chen@intel.com>,
	"Hansen, Dave" <dave.hansen@intel.com>,
	"Huang, Ying" <ying.huang@intel.com>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH 0/3] make vm_committed_as_batch aware of vm overcommit policy
Date: Thu, 28 May 2020 15:21:36 +0000	[thread overview]
Message-ID: <E8ECBC65D0B2554DAD44EBE43059B3741A2BFEEC@ORSMSX110.amr.corp.intel.com> (raw)
In-Reply-To: <20200528151020.GF93879@shbuild999.sh.intel.com>



>If it's true, then there could be 2 solutions, one is to skip the WARN_ONCE as it has no practical value, as the real >check is the following code, the other is to rectify the percpu counter when the policy is changing to >OVERCOMMIT_NEVER.

I think it's better to fix it up when the policy changes. That's the right place. The WARN_ON might be useful to catch other bugs.

-Andi
 

  reply	other threads:[~2020-05-28 15:21 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-08  7:25 Feng Tang
2020-05-08  7:25 ` [PATCH 1/3] proc/meminfo: avoid open coded reading of vm_committed_as Feng Tang
2020-05-15  7:22   ` Michal Hocko
2020-05-08  7:25 ` [PATCH 2/3] mm/util.c: make vm_memory_committed() more accurate Feng Tang
2020-05-15  7:23   ` Michal Hocko
2020-05-15  8:11     ` Feng Tang
2020-05-15  9:04       ` Michal Hocko
2020-05-15 13:01         ` Feng Tang
2020-05-08  7:25 ` [PATCH 3/3] mm: adjust vm_committed_as_batch according to vm overcommit policy Feng Tang
2020-05-08 11:24   ` Matthew Wilcox
2020-05-08 12:33     ` Feng Tang
2020-05-15  7:41   ` Michal Hocko
2020-05-15  8:02     ` Feng Tang
2020-05-15  9:08       ` Michal Hocko
2020-05-15 11:26         ` Feng Tang
2020-05-15  7:44   ` Michal Hocko
2020-05-15  8:38     ` Feng Tang
2020-05-21 21:27 ` [PATCH 0/3] make vm_committed_as_batch aware of " Qian Cai
2020-05-26 18:14   ` Qian Cai
2020-05-27  1:14     ` Andi Kleen
2020-05-27  1:43       ` Feng Tang
2020-05-27  1:46     ` Feng Tang
2020-05-27  2:25       ` Qian Cai
2020-05-27 10:46         ` Feng Tang
2020-05-27 12:05           ` Qian Cai
2020-05-27 13:33             ` Feng Tang
2020-05-27 15:42               ` Qian Cai
2020-05-28 14:18           ` Qian Cai
2020-05-28 15:10             ` Feng Tang
2020-05-28 15:21               ` Kleen, Andi [this message]
2020-05-29 15:43                 ` Feng Tang
2020-05-29 15:50                   ` Andi Kleen
2020-05-29 16:04                     ` Feng Tang
2020-05-28 15:48               ` Michal Hocko

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=E8ECBC65D0B2554DAD44EBE43059B3741A2BFEEC@ORSMSX110.amr.corp.intel.com \
    --to=andi.kleen@intel.com \
    --cc=akpm@linux-foundation.org \
    --cc=cai@lca.pw \
    --cc=dave.hansen@intel.com \
    --cc=feng.tang@intel.com \
    --cc=hannes@cmpxchg.org \
    --cc=keescook@chromium.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=mcgrof@kernel.org \
    --cc=mgorman@suse.de \
    --cc=mhocko@suse.com \
    --cc=sfr@canb.auug.org.au \
    --cc=tim.c.chen@intel.com \
    --cc=willy@infradead.org \
    --cc=ying.huang@intel.com \
    --cc=yzaikin@google.com \
    --subject='RE: [PATCH 0/3] make vm_committed_as_batch aware of vm overcommit policy' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
on how to clone and mirror all data and code used for this inbox