From: Christoph Hellwig <hch@infradead.org>
To: David Hildenbrand <david@redhat.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Vlastimil Babka <vbabka@suse.cz>, Michal Hocko <mhocko@suse.com>,
Dan Williams <dan.j.williams@intel.com>,
Pavel Tatashin <pasha.tatashin@oracle.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH v1 10/10] mm/memory_hotplug: allow online/offline memory by a kernel module
Date: Wed, 23 May 2018 12:51:19 -0700 [thread overview]
Message-ID: <20180523195119.GA20852@infradead.org> (raw)
In-Reply-To: <20180523151151.6730-11-david@redhat.com>
On Wed, May 23, 2018 at 05:11:51PM +0200, David Hildenbrand wrote:
> Kernel modules that want to control how/when memory is onlined/offlined
> need a proper interface to these functions. Also, for adding memory
> properly, memory_block_size_bytes is required.
Which module? Please send it along with the enabling code.
> --- a/drivers/base/memory.c
> +++ b/drivers/base/memory.c
> @@ -88,6 +88,7 @@ unsigned long __weak memory_block_size_bytes(void)
> {
> return MIN_MEMORY_BLOCK_SIZE;
> }
> +EXPORT_SYMBOL(memory_block_size_bytes);
> +EXPORT_SYMBOL(mem_hotplug_begin);
> +EXPORT_SYMBOL(mem_hotplug_done);
EXPORT_SYMBOL_GPL for any deep down VM internals, please.
next prev parent reply other threads:[~2018-05-23 19:51 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-23 15:11 [PATCH v1 00/10] mm: online/offline 4MB chunks controlled by device driver David Hildenbrand
2018-05-23 15:11 ` [PATCH v1 01/10] mm: introduce and use PageOffline() David Hildenbrand
2018-05-23 15:11 ` [PATCH v1 02/10] mm/page_ext.c: support online/offline of memory < section size David Hildenbrand
2018-05-23 15:11 ` [PATCH v1 03/10] kasan: prepare for online/offline of different start/size David Hildenbrand
2018-05-23 15:11 ` [PATCH v1 04/10] kdump: include PAGE_OFFLINE_MAPCOUNT_VALUE in VMCOREINFO David Hildenbrand
2018-05-23 15:11 ` [PATCH v1 05/10] mm/memory_hotplug: limit offline_pages() to sizes we can actually handle David Hildenbrand
2018-05-23 15:11 ` [PATCH v1 06/10] mm/memory_hotplug: onlining pages can only fail due to notifiers David Hildenbrand
2018-05-23 15:11 ` [PATCH v1 07/10] mm/memory_hotplug: print only with DEBUG_VM in online/offline_pages() David Hildenbrand
2018-05-23 15:11 ` [PATCH v1 08/10] mm/memory_hotplug: allow to control onlining/offlining of memory by a driver David Hildenbrand
2018-05-23 15:11 ` [PATCH v1 09/10] mm/memory_hotplug: teach offline_pages() to not try forever David Hildenbrand
2018-05-24 14:39 ` Michal Hocko
2018-05-24 20:36 ` David Hildenbrand
2018-05-23 15:11 ` [PATCH v1 10/10] mm/memory_hotplug: allow online/offline memory by a kernel module David Hildenbrand
2018-05-23 19:51 ` Christoph Hellwig [this message]
2018-05-24 5:59 ` David Hildenbrand
2018-05-24 7:53 ` [PATCH v1 00/10] mm: online/offline 4MB chunks controlled by device driver Michal Hocko
2018-05-24 8:31 ` David Hildenbrand
2018-05-24 8:56 ` Dave Young
2018-05-24 9:14 ` David Hildenbrand
2018-05-28 8:28 ` Dave Young
2018-05-28 10:03 ` David Hildenbrand
2018-05-24 9:31 ` Michal Hocko
2018-05-24 10:45 ` David Hildenbrand
2018-05-24 12:03 ` Michal Hocko
2018-05-24 14:04 ` David Hildenbrand
2018-05-24 14:22 ` Michal Hocko
2018-05-24 21:07 ` David Hildenbrand
2018-06-11 11:53 ` David Hildenbrand
2018-06-11 11:56 ` Michal Hocko
2018-06-11 12:33 ` David Hildenbrand
2018-07-16 19:48 ` David Hildenbrand
2018-07-16 20:05 ` Michal Hocko
2018-07-18 9:56 ` David Hildenbrand
2018-07-18 11:23 ` Michal Hocko
2018-07-18 13:19 ` Michal Hocko
2018-07-18 13:39 ` David Hildenbrand
2018-07-18 13:43 ` Michal Hocko
2018-07-18 13:47 ` David Hildenbrand
2018-07-18 13:56 ` Michal Hocko
2018-05-25 15:08 ` David Hildenbrand
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