From: Oscar Salvador <osalvador@suse.de>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@redhat.com>,
Michal Hocko <mhocko@kernel.org>,
VlastimilBabkavbabka@suse.cz, pasha.tatashin@soleen.com,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Anshuman Khandual <anshuman.khandual@arm.com>
Subject: Re: [PATCH v2 0/7] Allocate memmap from hotadded memory (per device)
Date: Mon, 22 Feb 2021 12:15:10 +0100 [thread overview]
Message-ID: <20210222111506.GA23651@linux> (raw)
In-Reply-To: <20210217101851.GA28996@linux>
On Wed, Feb 17, 2021 at 11:18:59AM +0100, Oscar Salvador wrote:
> On Tue, Feb 09, 2021 at 02:38:47PM +0100, Oscar Salvador wrote:
> > Hi,
> >
> > here is v2.
> >
> > Changes from v1 -> v2
> > - Addressed feedback from David
> > - Fence off the feature in case struct page size is not
> > multiple of PMD size or pageblock alignment cannot be guaranted
> > - Tested on x86_64 small and large memory_blocks
> > - Tested on arm64 4KB and 64KB page sizes (for some reason I cannot boot
> > my VM with 16KB page size).
> >
> > Arm64 with 4KB page size behaves like x86_64 after [1], which made section
> > size smaller.
> > With 64KB, the feature gets fenced off due to pageblock alignment.
> >
> > Changes from RFCv3 -> v1:
> > - Addressed feedback from David
> > - Re-order patches
> >
> > Changes from v2 -> v3 (RFC):
> > - Re-order patches (Michal)
> > - Fold "mm,memory_hotplug: Introduce MHP_MEMMAP_ON_MEMORY" in patch#1
> > - Add kernel boot option to enable this feature (Michal)
> >
> > Changes from v1 -> v2 (RFC):
> > - Addressed feedback provided by David
> > - Add a arch_support_memmap_on_memory to be called
> > from mhp_supports_memmap_on_memory, as atm,
> > only ARM, powerpc and x86_64 have altmat support.
> >
> > [1] https://lore.kernel.org/lkml/cover.1611206601.git.sudaraja@codeaurora.org/
>
> Let me refloat this one :-)
Kindly ping :-)
--
Oscar Salvador
SUSE L3
next prev parent reply other threads:[~2021-02-22 11:15 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-09 13:38 [PATCH v2 0/7] Allocate memmap from hotadded memory (per device) Oscar Salvador
2021-02-09 13:38 ` [PATCH v2 1/7] mm,memory_hotplug: Allocate memmap from the added memory range Oscar Salvador
2021-02-25 18:58 ` David Hildenbrand
2021-02-28 18:50 ` Oscar Salvador
2021-03-01 8:30 ` David Hildenbrand
2021-03-01 8:32 ` David Hildenbrand
2021-02-09 13:38 ` [PATCH v2 2/7] acpi,memhotplug: Enable MHP_MEMMAP_ON_MEMORY when supported Oscar Salvador
2021-02-09 13:38 ` [PATCH v2 3/7] mm,memory_hotplug: Add kernel boot option to enable memmap_on_memory Oscar Salvador
2021-02-25 18:25 ` David Hildenbrand
2021-02-26 12:14 ` Oscar Salvador
2021-03-01 8:27 ` David Hildenbrand
2021-02-09 13:38 ` [PATCH v2 4/7] mm,memory_hotplug: Enforce struct page size to be multiple of PMD Oscar Salvador
2021-02-25 18:26 ` David Hildenbrand
2021-02-26 12:06 ` Oscar Salvador
2021-03-01 10:06 ` Oscar Salvador
2021-03-01 10:24 ` David Hildenbrand
2021-02-09 13:38 ` [PATCH v2 5/7] mm,memory_hotplug: Enforce pageblock alignment when memmap_on_memory Oscar Salvador
2021-02-25 18:27 ` David Hildenbrand
2021-02-26 12:06 ` Oscar Salvador
2021-02-09 13:38 ` [PATCH v2 6/7] x86/Kconfig: Introduce ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE Oscar Salvador
2021-02-25 18:29 ` David Hildenbrand
2021-02-26 12:04 ` Oscar Salvador
2021-03-01 8:45 ` David Hildenbrand
2021-03-01 10:07 ` Oscar Salvador
2021-02-09 13:38 ` [PATCH v2 7/7] arm64/Kconfig: " Oscar Salvador
2021-02-25 18:29 ` David Hildenbrand
2021-02-26 12:10 ` Oscar Salvador
2021-02-17 10:18 ` [PATCH v2 0/7] Allocate memmap from hotadded memory (per device) Oscar Salvador
2021-02-22 11:15 ` Oscar Salvador [this message]
2021-02-22 11:28 ` David Hildenbrand
2021-02-23 7:48 ` Oscar Salvador
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