+ acpi-memhotplug-memory-resources-cannot-be-enabled-yet.patch added to -mm tree

* + acpi-memhotplug-memory-resources-cannot-be-enabled-yet.patch added to -mm tree
@ 2021-07-14 23:44 akpm
  2021-07-15  9:35 ` Oscar Salvador
  2021-07-15 12:14 ` Pankaj Gupta
  0 siblings, 2 replies; 3+ messages in thread
From: akpm @ 2021-07-14 23:44 UTC (permalink / raw)
  To: aneesh.kumar, anshuman.khandual, anton, ardb, bauerman, benh,
	bhe, borntraeger, bp, catalin.marinas, cheloha, christophe.leroy,
	dalias, dan.j.williams, dave.hansen, dave.jiang, david, gor, hca,
	hpa, jasowang, joe, justin.he, ldufour, lenb, luto, mhocko,
	michel, mingo, mm-commits, mpe, mst, nathanl, npiggin, osalvador,
	pankaj.gupta.linux, pankaj.gupta, pasha.tatashin, paulus, peterz,
	pmorel, rafael.j.wysocki, richard.weiyang, rjw, rppt, slyfox,
	tglx, vbabka, vishal.l.verma, vkuznets, wangkefeng.wang, will,
	ysato


The patch titled
     Subject: ACPI: memhotplug: memory resources cannot be enabled yet
has been added to the -mm tree.  Its filename is
     acpi-memhotplug-memory-resources-cannot-be-enabled-yet.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/acpi-memhotplug-memory-resources-cannot-be-enabled-yet.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/acpi-memhotplug-memory-resources-cannot-be-enabled-yet.patch

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next and is updated
there every 3-4 working days

------------------------------------------------------
From: David Hildenbrand <david@redhat.com>
Subject: ACPI: memhotplug: memory resources cannot be enabled yet

We allocate + initialize everything from scratch.  In case enabling the
device fails, we free all memory resourcs.

Link: https://lkml.kernel.org/r/20210712124052.26491-5-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Anton Blanchard <anton@ozlabs.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Baoquan He <bhe@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Jia He <justin.he@arm.com>
Cc: Joe Perches <joe@perches.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Laurent Dufour <ldufour@linux.ibm.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Michel Lespinasse <michel@lespinasse.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nathan Lynch <nathanl@linux.ibm.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Pankaj Gupta <pankaj.gupta@ionos.com>
Cc: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Pierre Morel <pmorel@linux.ibm.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Rich Felker <dalias@libc.org>
Cc: Scott Cheloha <cheloha@linux.ibm.com>
Cc: Sergei Trofimovich <slyfox@gentoo.org>
Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Yang <richard.weiyang@linux.alibaba.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/acpi/acpi_memhotplug.c |    4 ----
 1 file changed, 4 deletions(-)

--- a/drivers/acpi/acpi_memhotplug.c~acpi-memhotplug-memory-resources-cannot-be-enabled-yet
+++ a/drivers/acpi/acpi_memhotplug.c
@@ -182,10 +182,6 @@ static int acpi_memory_enable_device(str
 	 * (i.e. memory-hot-remove function)
 	 */
 	list_for_each_entry(info, &mem_device->res_list, list) {
-		if (info->enabled) { /* just sanity check...*/
-			num_enabled++;
-			continue;
-		}
 		/*
 		 * If the memory block size is zero, please ignore it.
 		 * Don't try to do the following memory hotplug flowchart.
_

Patches currently in -mm which might be from david@redhat.com are

memory-hotplugrst-remove-locking-details-from-admin-guide.patch
memory-hotplugrst-complete-admin-guide-overhaul.patch
mm-memory_hotplug-use-unsigned-long-for-pfn-in-zone_for_pfn_range.patch
mm-memory_hotplug-remove-nid-parameter-from-arch_remove_memory.patch
mm-memory_hotplug-remove-nid-parameter-from-remove_memory-and-friends.patch
acpi-memhotplug-memory-resources-cannot-be-enabled-yet.patch


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