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From: David Hildenbrand <david@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>,
	Oscar Salvador <osalvador@suse.de>
Cc: linux-kernel@vger.kernel.org, Michal Hocko <mhocko@suse.com>,
	linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org,
	linux-ia64@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
	x86@kernel.org, "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Alexander Duyck <alexander.h.duyck@linux.intel.com>,
	Alexander Potapenko <glider@google.com>,
	Andy Lutomirski <luto@kernel.org>,
	Anshuman Khandual <anshuman.khandual@arm.com>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Borislav Petkov <bp@alien8.de>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	Christophe Leroy <christophe.leroy@c-s.fr>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
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	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Halil Pasic <pasic@linux.ibm.com>,
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	Pavel Tatashin <pasha.tatashin@soleen.com>,
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	Rich Felker <dalias@libc.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Steve Capper <steve.capper@arm.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	Tony Luck <tony.luck@intel.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Vlastimil Babka <vbabka@suse.cz>,
	Wei Yang <richard.weiyang@gmail.com>,
	Wei Yang <richardw.yang@linux.intel.com>,
	Will Deacon <will@kernel.org>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Yu Zhao <yuzhao@google.com>
Subject: Re: [PATCH v6 00/10] mm/memory_hotplug: Shrink zones before removing memory
Date: Fri, 31 Jan 2020 10:18:34 +0100
Message-ID: <f7ed4448-8f41-599d-4689-914eeaf84d6d@redhat.com> (raw)
In-Reply-To: <20200130204043.29e21049775e3a637db733e0@linux-foundation.org>

On 31.01.20 05:40, Andrew Morton wrote:
> On Tue, 3 Dec 2019 14:36:38 +0100 Oscar Salvador <osalvador@suse.de> wrote:
> 
>> On Mon, Dec 02, 2019 at 10:09:51AM +0100, David Hildenbrand wrote:
>>> @Michal, @Oscar, can some of you at least have a patch #5 now so we can
>>> proceed with that? (the other patches can stay in -next some time longer)
>>
>> Hi, 
>>
>> I will be having a look at patch#5 shortly.
>>
>> Thanks for the reminder
> 
> Things haven't improved a lot :(
> 
> mm-memmap_init-update-variable-name-in-memmap_init_zone.patch
> mm-memory_hotplug-poison-memmap-in-remove_pfn_range_from_zone.patch
> mm-memory_hotplug-we-always-have-a-zone-in-find_smallestbiggest_section_pfn.patch
> mm-memory_hotplug-dont-check-for-all-holes-in-shrink_zone_span.patch
> mm-memory_hotplug-drop-local-variables-in-shrink_zone_span.patch
> mm-memory_hotplug-cleanup-__remove_pages.patch
> 
> The first patch has reviews, the remainder are unloved.

Trying hard not to rant about the review mentality on this list, but I'm
afraid I can't totally bite my tongue ... :)

Now, this is an uncomfortable situation for you and me. You have to ping
people about review and patches are stuck in your tree. I have a growing
list of patches that are somewhat considered "done", but well,
not-upstream-at-all. I have patches that are long in RHEL and were
properly tested, but could get dropped any time because -ENOREVIEW.

Our process nowadays seems to be, to only upstream what has an ACK/RB
(fixes/features/cleanups). I can understand this is desirable (yet, I am
not sure if this makes sense with the current take-and-not-give-back
review mentality on this list).

Although it will make upstreaming stuff *even harder* and *even slower*,
maybe we should start to only queue patches that have an ACK/RB, so they
won't get blocked by this later on? At least that makes your life easier
and people won't have to eventually follow up on patches that have been
in linux-next for months.

Note: the result will be that many of my patches will still not get
reviewed, won't get queued/upstreamed, I will continuously ping and
resend, I will lose interest because I have better things to do, I will
lose interest in our code quality, I will lose interest to review.

(side note: some people might actually enjoy me sending less cleanup
patches, so this approach might be desirable for some ;) )

One alternative is to send patches upstream once they have been lying
around in linux-next for $RANDOM number of months, because they
obviously saw some testing and nobody started to yell at them once
stumbling over them on linux-mm.

-- 
Thanks,

David / dhildenb



  reply index

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-06  8:56 David Hildenbrand
2019-10-06  8:56 ` [PATCH v6 01/10] mm/memunmap: Don't access uninitialized memmap in memunmap_pages() David Hildenbrand
2019-10-06 19:58   ` Damian Tometzki
2019-10-06 20:13     ` David Hildenbrand
2019-10-14  9:05   ` David Hildenbrand
2019-10-06  8:56 ` [PATCH v6 02/10] mm/memmap_init: Update variable name in memmap_init_zone David Hildenbrand
2019-10-06  8:56 ` [PATCH v6 03/10] mm/memory_hotplug: Don't access uninitialized memmaps in shrink_pgdat_span() David Hildenbrand
2019-10-14  9:31   ` David Hildenbrand
2019-10-06  8:56 ` [PATCH v6 04/10] mm/memory_hotplug: Don't access uninitialized memmaps in shrink_zone_span() David Hildenbrand
2019-10-14  9:32   ` David Hildenbrand
2019-10-14 19:17     ` Andrew Morton
2019-11-19 14:16       ` David Hildenbrand
2019-11-19 20:44         ` Andrew Morton
2019-10-06  8:56 ` [PATCH v6 05/10] mm/memory_hotplug: Shrink zones when offlining memory David Hildenbrand
2019-10-14  9:39   ` David Hildenbrand
2019-10-14 19:16     ` Andrew Morton
2019-10-27 22:45   ` David Hildenbrand
2019-11-30 23:21     ` Andrew Morton
2019-11-30 23:43       ` David Hildenbrand
2019-12-18 17:08       ` David Hildenbrand
2019-12-18 20:16         ` Andrew Morton
2019-12-03 15:10   ` Oscar Salvador
2019-12-03 15:27     ` David Hildenbrand
2019-10-06  8:56 ` [PATCH v6 06/10] mm/memory_hotplug: Poison memmap in remove_pfn_range_from_zone() David Hildenbrand
2019-10-16 14:01   ` David Hildenbrand
2020-02-04  8:59   ` Oscar Salvador
2019-10-06  8:56 ` [PATCH v6 07/10] mm/memory_hotplug: We always have a zone in find_(smallest|biggest)_section_pfn David Hildenbrand
2020-02-04  9:06   ` Oscar Salvador
2020-02-05  8:57   ` Wei Yang
2020-02-05  8:59     ` David Hildenbrand
2020-02-05  9:26       ` Wei Yang
2019-10-06  8:56 ` [PATCH v6 08/10] mm/memory_hotplug: Don't check for "all holes" in shrink_zone_span() David Hildenbrand
2020-02-04  9:13   ` Oscar Salvador
2020-02-04  9:20     ` David Hildenbrand
2020-02-04 14:25   ` Baoquan He
2020-02-04 14:42     ` David Hildenbrand
2020-02-05 12:43       ` Baoquan He
2020-02-05 13:20         ` David Hildenbrand
2020-02-05 13:34           ` Baoquan He
2020-02-05 13:38             ` David Hildenbrand
2020-02-05 14:12               ` Baoquan He
2020-02-05 14:16                 ` David Hildenbrand
2020-02-05 14:26                   ` Baoquan He
2020-02-05  9:59   ` Wei Yang
2020-02-05 14:48     ` Baoquan He
2020-02-05 22:56       ` Wei Yang
2020-02-05 23:08         ` Baoquan He
2020-02-05 23:26           ` Wei Yang
2020-02-05 23:30             ` Baoquan He
2020-02-05 23:34               ` Wei Yang
2020-02-05 14:54     ` David Laight
2020-02-05 14:55       ` David Hildenbrand
2019-10-06  8:56 ` [PATCH v6 09/10] mm/memory_hotplug: Drop local variables " David Hildenbrand
2020-02-04  9:26   ` Oscar Salvador
2020-02-04  9:29     ` David Hildenbrand
2020-02-05 10:07   ` Wei Yang
2019-10-06  8:56 ` [PATCH v6 10/10] mm/memory_hotplug: Cleanup __remove_pages() David Hildenbrand
2020-02-04  9:46   ` Oscar Salvador
2020-02-04 12:41     ` David Hildenbrand
2020-02-04 13:13       ` Segher Boessenkool
2020-02-04 13:38         ` David Hildenbrand
2020-02-05 12:51           ` Segher Boessenkool
2020-02-05 13:17             ` David Hildenbrand
2020-02-05 13:18               ` David Hildenbrand
2020-02-05 13:23                 ` David Hildenbrand
2020-02-05 11:48   ` Wei Yang
2019-12-02  9:09 ` [PATCH v6 00/10] mm/memory_hotplug: Shrink zones before removing memory David Hildenbrand
2019-12-03 13:36   ` Oscar Salvador
2020-01-31  4:40     ` Andrew Morton
2020-01-31  9:18       ` David Hildenbrand [this message]
2020-01-31 10:03         ` Michal Hocko
2020-01-31 10:36           ` David Hildenbrand
2020-02-04  1:46         ` Andrew Morton
2020-02-04  8:45           ` David Hildenbrand
2020-02-04  9:51             ` Oscar Salvador

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