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Tue, 07 Jan 2020 05:10:12 -0800 (PST) Received: from localhost.corp.microsoft.com ([167.220.255.5]) by smtp.googlemail.com with ESMTPSA id m71sm27522400pje.0.2020.01.07.05.10.07 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 07 Jan 2020 05:10:11 -0800 (PST) From: lantianyu1986@gmail.com X-Google-Original-From: Tianyu.Lan@microsoft.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 , 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 Message-Id: <20200107130950.2983-3-Tianyu.Lan@microsoft.com> X-Mailer: git-send-email 2.14.5 In-Reply-To: <20200107130950.2983-1-Tianyu.Lan@microsoft.com> References: <20200107130950.2983-1-Tianyu.Lan@microsoft.com> X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Tianyu Lan 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 --- 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.