From: Michal Hocko <mhocko@kernel.org>
To: linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@suse.de>, Vlastimil Babka <vbabka@suse.cz>,
Andrea Arcangeli <aarcange@redhat.com>,
Jerome Glisse <jglisse@redhat.com>,
Reza Arbab <arbab@linux.vnet.ibm.com>,
Yasuaki Ishimatsu <yasu.isimatu@gmail.com>,
qiuxishi@huawei.com, Kani Toshimitsu <toshi.kani@hpe.com>,
slaoub@gmail.com, Joonsoo Kim <js1304@gmail.com>,
Andi Kleen <ak@linux.intel.com>,
David Rientjes <rientjes@google.com>,
Daniel Kiper <daniel.kiper@oracle.com>,
Igor Mammedov <imammedo@redhat.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
LKML <linux-kernel@vger.kernel.org>
Subject:
Date: Sat, 15 Apr 2017 14:17:31 +0200 [thread overview]
Message-ID: <20170415121734.6692-1-mhocko@kernel.org> (raw)
In-Reply-To: <20170410110351.12215-1-mhocko@kernel.org>
Hi,
here I 3 more preparatory patches which I meant to send on Thursday but
forgot... After more thinking about pfn walkers I have realized that
the current code doesn't check offline holes in zones. From a quick
review that doesn't seem to be a problem currently. Pfn walkers can race
with memory offlining and with the original hotplug impementation those
offline pages can change the zone but I wasn't able to find any serious
problem other than small confusion. The new hotplug code, will not have
any valid zone, though so those code paths should check PageReserved
to rule offline holes. I hope I have addressed all of them in these 3
patches. I would appreciate if Vlastimil and Jonsoo double check after
me.
next prev parent reply other threads:[~2017-04-15 12:19 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-10 11:03 [PATCH -v2 0/9] mm: make movable onlining suck less Michal Hocko
2017-04-10 11:03 ` [PATCH 1/9] mm: remove return value from init_currently_empty_zone Michal Hocko
2017-04-11 8:10 ` Balbir Singh
2017-04-13 12:03 ` Vlastimil Babka
2017-04-13 19:43 ` YASUAKI ISHIMATSU
2017-04-10 11:03 ` [PATCH 2/9] mm, memory_hotplug: use node instead of zone in can_online_high_movable Michal Hocko
2017-04-13 12:46 ` Vlastimil Babka
2017-04-13 19:45 ` YASUAKI ISHIMATSU
2017-04-10 11:03 ` [PATCH 3/9] mm: drop page_initialized check from get_nid_for_pfn Michal Hocko
2017-04-13 12:59 ` Vlastimil Babka
2017-04-10 11:03 ` [PATCH 4/9] mm, memory_hotplug: get rid of is_zone_device_section Michal Hocko
2017-04-10 16:20 ` Jerome Glisse
2017-04-10 16:31 ` Michal Hocko
2017-04-13 13:05 ` Vlastimil Babka
2017-04-17 20:12 ` Jerome Glisse
2017-04-18 7:19 ` Michal Hocko
2017-04-10 11:03 ` [PATCH 5/9] mm, memory_hotplug: split up register_one_node Michal Hocko
2017-04-13 14:05 ` Vlastimil Babka
2017-04-13 14:13 ` Michal Hocko
2017-04-10 11:03 ` [PATCH 6/9] mm, memory_hotplug: do not associate hotadded memory to zones until online Michal Hocko
2017-04-10 16:25 ` [PATCH v3 " Michal Hocko
2017-04-20 8:25 ` Vlastimil Babka
2017-04-20 9:06 ` Michal Hocko
2017-04-20 10:51 ` Vlastimil Babka
2017-04-10 11:03 ` [PATCH 7/9] mm, memory_hotplug: replace for_device by want_memblock in arch_add_memory Michal Hocko
2017-04-20 8:29 ` Vlastimil Babka
2017-04-10 11:03 ` [PATCH 8/9] mm, memory_hotplug: fix the section mismatch warning Michal Hocko
2017-04-10 11:03 ` [PATCH 9/9] mm, memory_hotplug: remove unused cruft after memory hotplug rework Michal Hocko
2017-04-20 8:38 ` Vlastimil Babka
2017-04-10 14:27 ` [PATCH -v2 0/9] mm: make movable onlining suck less Igor Mammedov
2017-04-10 14:56 ` Michal Hocko
2017-04-10 15:22 ` Michal Hocko
2017-04-10 15:31 ` Michal Hocko
2017-04-11 8:01 ` Igor Mammedov
2017-04-11 8:41 ` Michal Hocko
2017-04-11 9:53 ` Igor Mammedov
2017-04-11 10:47 ` Michal Hocko
2017-04-10 16:02 ` Michal Hocko
2017-04-18 8:23 ` Vlastimil Babka
2017-04-10 16:09 ` Michal Hocko
2017-04-11 6:38 ` Igor Mammedov
2017-04-11 9:23 ` Michal Hocko
2017-04-11 9:59 ` Igor Mammedov
2017-04-11 11:01 ` Michal Hocko
2017-04-11 11:38 ` Michal Hocko
2017-04-11 12:38 ` Michal Hocko
2017-04-10 15:43 ` Reza Arbab
2017-04-11 8:59 ` Michal Hocko
2017-04-10 16:35 ` Jerome Glisse
2017-04-10 17:53 ` Michal Hocko
2017-04-11 2:51 ` Balbir Singh
2017-04-11 17:03 ` Michal Hocko
2017-04-17 21:51 ` Dan Williams
2017-04-18 7:14 ` Michal Hocko
2017-04-18 16:42 ` Dan Williams
2017-04-18 19:54 ` Michal Hocko
2017-04-20 3:37 ` Dan Williams
2017-04-15 12:17 ` Michal Hocko [this message]
2017-04-15 12:17 ` [PATCH 1/3] mm: consider zone which is not fully populated to have holes Michal Hocko
2017-04-18 8:45 ` Vlastimil Babka
2017-04-18 9:27 ` Michal Hocko
2017-04-19 11:59 ` Vlastimil Babka
2017-04-19 12:16 ` Michal Hocko
2017-04-19 12:34 ` Vlastimil Babka
2017-04-19 12:50 ` Michal Hocko
2017-04-15 12:17 ` [PATCH 2/3] mm, compaction: skip over holes in __reset_isolation_suitable Michal Hocko
2017-04-15 12:17 ` [PATCH 3/3] mm: __first_valid_page skip over offline pages Michal Hocko
2017-04-17 5:47 ` your mail Joonsoo Kim
2017-04-17 8:15 ` Michal Hocko
2017-04-20 1:27 ` Joonsoo Kim
2017-04-20 7:28 ` Michal Hocko
2017-04-20 8:49 ` Michal Hocko
2017-04-20 11:56 ` Vlastimil Babka
2017-04-20 12:13 ` Michal Hocko
2017-04-21 2:46 ` [lkp-robot] 73821bb516: WARNING:at_mm/memblock.c:#memblock_virt_alloc_internal kernel test robot
2017-04-21 8:05 ` Michal Hocko
2017-04-21 4:38 ` your mail Joonsoo Kim
2017-04-21 7:16 ` Michal Hocko
2017-04-24 1:44 ` Joonsoo Kim
2017-04-24 7:53 ` Michal Hocko
2017-04-25 2:50 ` Joonsoo Kim
2017-04-26 9:19 ` Michal Hocko
2017-04-27 2:08 ` Joonsoo Kim
2017-04-27 15:10 ` Michal Hocko
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