From: David Hildenbrand <david@redhat.com>
To: linux-mm@kvack.org
Cc: David Hildenbrand <david@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.com>, Vlastimil Babka <vbabka@suse.cz>,
Dan Williams <dan.j.williams@intel.com>,
Pavel Tatashin <pasha.tatashin@oracle.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH RFC 8/8] mm: export more functions used to online/offline memory
Date: Fri, 13 Apr 2018 15:33:42 +0200 [thread overview]
Message-ID: <20180413133344.3672-1-david@redhat.com> (raw)
In-Reply-To: <20180413131632.1413-1-david@redhat.com>
Kernel modules that want to control how/when memory is onlined/offlined
need these functions.
Signed-off-by: David Hildenbrand <david@redhat.com>
---
mm/memory_hotplug.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index ac14ea772792..3c374d308cf4 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -979,6 +979,7 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages, int online_typ
memory_notify(MEM_CANCEL_ONLINE, &arg);
return ret;
}
+EXPORT_SYMBOL(online_pages);
#endif /* CONFIG_MEMORY_HOTPLUG_SPARSE */
static void reset_node_present_pages(pg_data_t *pgdat)
@@ -1296,6 +1297,7 @@ bool is_mem_section_removable(unsigned long start_pfn, unsigned long nr_pages)
/* All pageblocks in the memory block are likely to be hot-removable */
return true;
}
+EXPORT_SYMBOL(is_mem_section_removable);
/*
* Confirm all pages in a range [start, end) belong to the same zone.
@@ -1752,6 +1754,7 @@ int offline_pages(unsigned long start_pfn, unsigned long nr_pages)
{
return __offline_pages(start_pfn, start_pfn + nr_pages);
}
+EXPORT_SYMBOL(offline_pages);
#endif /* CONFIG_MEMORY_HOTREMOVE */
/**
@@ -1802,6 +1805,7 @@ int walk_memory_range(unsigned long start_pfn, unsigned long end_pfn,
return 0;
}
+EXPORT_SYMBOL(walk_memory_range);
#ifdef CONFIG_MEMORY_HOTREMOVE
static int check_memblock_offlined_cb(struct memory_block *mem, void *arg)
--
2.14.3
prev parent reply other threads:[~2018-04-13 13:33 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20180413131632.1413-1-david@redhat.com>
2018-04-13 13:16 ` [PATCH RFC 1/8] mm/memory_hotplug: Revert "mm/memory_hotplug: optimize memory hotplug" David Hildenbrand
2018-04-13 13:16 ` [PATCH RFC 2/8] mm: introduce PG_offline David Hildenbrand
2018-04-13 13:40 ` Michal Hocko
2018-04-13 13:46 ` David Hildenbrand
2018-04-17 11:50 ` David Hildenbrand
2018-04-13 17:11 ` Matthew Wilcox
2018-04-16 8:31 ` David Hildenbrand
2018-04-21 16:52 ` Vlastimil Babka
2018-04-22 3:01 ` Matthew Wilcox
2018-04-22 8:17 ` David Hildenbrand
2018-04-22 14:02 ` Matthew Wilcox
2018-04-22 15:13 ` David Hildenbrand
2018-04-29 21:08 ` Michal Hocko
2018-04-30 6:31 ` David Hildenbrand
2018-04-20 7:30 ` David Hildenbrand
2018-04-13 13:16 ` [PATCH RFC 3/8] mm: use PG_offline in online/offlining code David Hildenbrand
2018-04-13 13:31 ` [PATCH RFC 4/8] kdump: expose PG_offline David Hildenbrand
2018-04-13 13:33 ` [PATCH RFC 5/8] mm: only mark section offline when all pages are offline David Hildenbrand
2018-04-13 13:33 ` [PATCH RFC 6/8] mm: offline_pages() is also limited by MAX_ORDER David Hildenbrand
2018-04-13 13:33 ` [PATCH RFC 7/8] mm: allow to control onlining/offlining of memory by a driver David Hildenbrand
2018-04-13 15:59 ` Michal Hocko
2018-04-13 16:32 ` David Hildenbrand
2018-04-13 13:33 ` David Hildenbrand [this message]
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