From: lantianyu1986@gmail.com
To: kys@microsoft.com, haiyangz@microsoft.com,
sthemmin@microsoft.com, sashal@kernel.org,
akpm@linux-foundation.org, michael.h.kelley@microsoft.com,
david@redhat.com
Cc: Tianyu Lan <Tianyu.Lan@microsoft.com>,
linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, vkuznets@redhat.com,
eric.devolder@oracle.com, vbabka@suse.cz, osalvador@suse.de,
pavel.tatashin@microsoft.com, rppt@linux.ibm.com,
mhocko@suse.com
Subject: [RFC PATCH V2 2/10] mm: expose is_mem_section_removable() symbol
Date: Tue, 7 Jan 2020 21:09:42 +0800 [thread overview]
Message-ID: <20200107130950.2983-3-Tianyu.Lan@microsoft.com> (raw)
In-Reply-To: <20200107130950.2983-1-Tianyu.Lan@microsoft.com>
From: Tianyu Lan <Tianyu.Lan@microsoft.com>
Hyper-V balloon driver will use is_mem_section_removable() to
check whether memory block is removable or not when receive
memory hot remove msg. Expose it.
Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
---
mm/memory_hotplug.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index d04369e6d3cc..a4ebfc5c48b3 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1179,6 +1179,7 @@ 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_GPL(is_mem_section_removable);
/*
* Confirm all pages in a range [start, end) belong to the same zone.
--
2.14.5
next prev parent reply other threads:[~2020-01-07 13:10 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-07 13:09 [RFC PATCH V2 00/10] x86/Hyper-V: Add Dynamic memory hot-remove function lantianyu1986
2020-01-07 13:09 ` [RFC PATCH V2 1/10] mm/resource: Move child to new resource when release mem region lantianyu1986
2020-01-20 18:34 ` Michael Kelley
2020-01-20 19:20 ` Michael Kelley
2020-01-07 13:09 ` lantianyu1986 [this message]
2020-01-07 13:36 ` [RFC PATCH V2 2/10] mm: expose is_mem_section_removable() symbol Michal Hocko
2020-01-10 13:41 ` David Hildenbrand
2020-01-13 14:49 ` [EXTERNAL] " Tianyu Lan
2020-01-13 15:01 ` David Hildenbrand
2020-01-14 9:50 ` Michal Hocko
2020-01-17 16:35 ` Tianyu Lan
2020-01-20 14:14 ` Michal Hocko
2020-01-07 13:09 ` [RFC PATCH V2 3/10] x86/Hyper-V/Balloon: Replace hot-add and balloon up works with a common work lantianyu1986
2020-01-20 19:12 ` Michael Kelley
2020-01-07 13:09 ` [RFC PATCH V2 4/10] x86/Hyper-V/Balloon: Convert spin lock ha_lock to mutex lantianyu1986
2020-01-07 13:09 ` [RFC PATCH V2 5/10] x86/Hyper-V/Balloon: Avoid releasing ha_lock when traverse ha_region_list lantianyu1986
2020-01-07 13:09 ` [RFC PATCH V2 6/10] x86/Hyper-V/Balloon: Enable mem hot-remove capability lantianyu1986
2020-01-07 13:09 ` [RFC PATCH V2 7/10] x86/Hyper-V/Balloon: Handle mem hot-remove request lantianyu1986
2020-01-07 13:09 ` [RFC PATCH V2 8/10] x86/Hyper-V/Balloon: Handle request with non-aligned page number lantianyu1986
2020-01-07 13:09 ` [RFC PATCH V2 9/10] x86/Hyper-V/Balloon: Hot add mem in the gaps of hot add region lantianyu1986
2020-01-07 13:09 ` [RFC PATCH V2 10/10] x86/Hyper-V: Workaround Hyper-V unballoon msg bug lantianyu1986
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