From mboxrd@z Thu Jan 1 00:00:00 1970 From: Liang Li Subject: [PATCH v2 repost 3/7] mm: add a function to get the max pfn Date: Wed, 27 Jul 2016 09:23:32 +0800 Message-ID: <1469582616-5729-4-git-send-email-liang.z.li__12050.2283484258$1469583107$gmane$org@intel.com> References: <1469582616-5729-1-git-send-email-liang.z.li@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1469582616-5729-1-git-send-email-liang.z.li@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: linux-kernel@vger.kernel.org Cc: virtio-dev@lists.oasis-open.org, kvm@vger.kernel.org, Amit Shah , Liang Li , qemu-devel@nongnu.org, dgilbert@redhat.com, linux-mm@kvack.org, "Michael S. Tsirkin" , Paolo Bonzini , Andrew Morton , virtualization@lists.linux-foundation.org, Mel Gorman , Vlastimil Babka List-Id: virtualization@lists.linuxfoundation.org Expose the function to get the max pfn, so it can be used in the virtio-balloon device driver. Signed-off-by: Liang Li Cc: Andrew Morton Cc: Vlastimil Babka Cc: Mel Gorman Cc: Michael S. Tsirkin Cc: Paolo Bonzini Cc: Cornelia Huck Cc: Amit Shah --- mm/page_alloc.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 8b3e134..7da61ad 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4517,6 +4517,12 @@ void show_free_areas(unsigned int filter) show_swap_cache_info(); } +unsigned long get_max_pfn(void) +{ + return max_pfn; +} +EXPORT_SYMBOL(get_max_pfn); + static void zoneref_set_zone(struct zone *zone, struct zoneref *zoneref) { zoneref->zone = zone; -- 1.9.1