From: Chris Packham <Chris.Packham@alliedtelesis.co.nz>
To: "corbet@lwn.net" <corbet@lwn.net>
Cc: "rppt@linux.ibm.com" <rppt@linux.ibm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"willy@infradead.org" <willy@infradead.org>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>
Subject: Re: [PATCH v3 2/3] docs/core-api: memory-allocation: remove uses of c:func:
Date: Thu, 24 Oct 2019 21:07:36 +0000 [thread overview]
Message-ID: <1ab8d0451f29ba9b72dc758f7c1fc1ba0657ac61.camel@alliedtelesis.co.nz> (raw)
In-Reply-To: <20191024145712.165556c1@lwn.net>
On Thu, 2019-10-24 at 14:57 -0600, Jonathan Corbet wrote:
> On Thu, 24 Oct 2019 20:51:23 +0000
> Chris Packham <Chris.Packham@alliedtelesis.co.nz> wrote:
>
> > When I do actually get a series that applies to docs-next it'll
> > conflict with 59bb47985c1d ("mm, sl[aou]b: guarantee
> > natural alignment for kmalloc(power-of-two)") in Linus's tree.
>
> Alternatively, if I sync up to -rc4, does the problem go away? I should
> be able to explain that to Linus without too much trouble...
>
Yes the series applies cleanly once docs-next is merged with v5.4-rc4.
There is a merge conflict between 6ee0fac199e1 ("docs: fix memory.low
description in cgroup-v2.rst") in your tree and 9783aa9917f8 ("mm,
memcg: proportional memory.{low,min} reclaim") in Linus's tree. Here's
the resolution I came up with in my test merge
diff --cc Documentation/admin-guide/cgroup-v2.rst
index 26d1cde6b34a,5361ebec3361..515c2d9eef84
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@@ -1117,8 -1120,11 +1120,11 @@@ PAGE_SIZE multiple when read back
Best-effort memory protection. If the memory usage of a
cgroup is within its effective low boundary, the cgroup's
- memory won't be reclaimed unless memory can be reclaimed
+ memory won't be reclaimed unless there is no reclaimable
- memory available in unprotected cgroups.
+ from unprotected cgroups. Above the effective low boundary (or
+ effective min boundary if it is higher), pages are reclaimed
+ proportionally to the overage, reducing reclaim pressure for
+ smaller overages.
Effective low boundary is limited by memory.low values of
all ancestor cgroups. If there is memory.low overcommitment
next prev parent reply other threads:[~2019-10-24 21:07 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-24 19:50 [PATCH v3 0/3] docs/core-api: memory-allocation: minor cleanups Chris Packham
2019-10-24 19:50 ` [PATCH v3 1/3] docs/core-api: memory-allocation: fix typo Chris Packham
2019-10-24 19:50 ` [PATCH v3 2/3] docs/core-api: memory-allocation: remove uses of c:func: Chris Packham
2019-10-24 20:29 ` Jonathan Corbet
2019-10-24 20:51 ` Chris Packham
2019-10-24 20:57 ` Jonathan Corbet
2019-10-24 21:07 ` Chris Packham [this message]
2019-10-25 20:26 ` Mike Rapoport
2019-10-24 19:50 ` [PATCH v3 3/3] docs/core-api: memory-allocation: mention size helpers Chris Packham
2019-10-24 20:16 ` [PATCH v3 0/3] docs/core-api: memory-allocation: minor cleanups Matthew Wilcox
2019-10-25 20:25 ` Mike Rapoport
2019-10-29 10:46 ` Jonathan Corbet
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