From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx1.redhat.com ([209.132.183.28]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gPlt8-0004tk-Ex for kexec@lists.infradead.org; Thu, 22 Nov 2018 10:07:11 +0000 From: David Hildenbrand Subject: [PATCH v2 4/8] xen/balloon: mark inflated pages PG_offline Date: Thu, 22 Nov 2018 11:06:23 +0100 Message-Id: <20181122100627.5189-5-david@redhat.com> In-Reply-To: <20181122100627.5189-1-david@redhat.com> References: <20181122100627.5189-1-david@redhat.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: linux-mm@kvack.org Cc: Juergen Gross , Stefano Stabellini , Andrew Morton , linux-pm@vger.kernel.org, pv-drivers@vmware.com, linux-doc@vger.kernel.org, kexec-ml , linux-kernel@vger.kernel.org, Matthew Wilcox , Michal Hocko , "Michael S. Tsirkin" , xen-devel@lists.xenproject.org, linux-fsdevel@vger.kernel.org, devel@linuxdriverproject.org, David Hildenbrand , Boris Ostrovsky Mark inflated and never onlined pages PG_offline, to tell the world that the content is stale and should not be dumped. Cc: Boris Ostrovsky Cc: Juergen Gross Cc: Stefano Stabellini Cc: Andrew Morton Cc: Matthew Wilcox Cc: Michal Hocko Cc: "Michael S. Tsirkin" Signed-off-by: David Hildenbrand --- drivers/xen/balloon.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 12148289debd..14dd6b814db3 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -425,6 +425,7 @@ static int xen_bring_pgs_online(struct page *pg, unsigned int order) for (i = 0; i < size; i++) { p = pfn_to_page(start_pfn + i); __online_page_set_limits(p); + __SetPageOffline(p); __balloon_append(p); } mutex_unlock(&balloon_mutex); @@ -493,6 +494,7 @@ static enum bp_state increase_reservation(unsigned long nr_pages) xenmem_reservation_va_mapping_update(1, &page, &frame_list[i]); /* Relinquish the page back to the allocator. */ + __ClearPageOffline(page); free_reserved_page(page); } @@ -519,6 +521,7 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp) state = BP_EAGAIN; break; } + __SetPageOffline(page); adjust_managed_page_count(page, -1); xenmem_reservation_scrub_page(page); list_add(&page->lru, &pages); -- 2.17.2 _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec