From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932323AbcA0KLM (ORCPT ); Wed, 27 Jan 2016 05:11:12 -0500 Received: from e06smtp09.uk.ibm.com ([195.75.94.105]:53775 "EHLO e06smtp09.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932197AbcA0KJo (ORCPT ); Wed, 27 Jan 2016 05:09:44 -0500 X-IBM-Helo: d06dlp02.portsmouth.uk.ibm.com X-IBM-MailFrom: borntraeger@de.ibm.com X-IBM-RcptTo: davej@codemonkey.org.uk;davem@davemloft.net;x86@kernel.org;linux-mm@kvack.org;iamjoonsoo.kim@lge.com;akpm@linux-foundation.org;linuxppc-dev@lists.ozlabs.org;linux-arch@vger.kernel.org;linux-kernel@vger.kernel.org;linux-s390@vger.kernel.org From: Christian Borntraeger To: akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, x86@kernel.org, linuxppc-dev@lists.ozlabs.org, davem@davemloft.net, Joonsoo Kim , davej@codemonkey.org.uk, Christian Borntraeger Subject: [PATCH v3 1/3] mm: provide debug_pagealloc_enabled() without CONFIG_DEBUG_PAGEALLOC Date: Wed, 27 Jan 2016 11:09:59 +0100 Message-Id: <1453889401-43496-2-git-send-email-borntraeger@de.ibm.com> X-Mailer: git-send-email 2.3.0 In-Reply-To: <1453889401-43496-1-git-send-email-borntraeger@de.ibm.com> References: <1453889401-43496-1-git-send-email-borntraeger@de.ibm.com> X-TM-AS-GCONF: 00 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16012710-0037-0000-0000-00000564C878 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We can provide debug_pagealloc_enabled() also if CONFIG_DEBUG_PAGEALLOC is not set. It will return false in that case. Signed-off-by: Christian Borntraeger Acked-by: David Rientjes Acked-by: Thomas Gleixner --- include/linux/mm.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index f1cd22f..ae84716 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2194,13 +2194,18 @@ kernel_map_pages(struct page *page, int numpages, int enable) #ifdef CONFIG_HIBERNATION extern bool kernel_page_present(struct page *page); #endif /* CONFIG_HIBERNATION */ -#else +#else /* CONFIG_DEBUG_PAGEALLOC */ +static inline bool debug_pagealloc_enabled(void) +{ + return false; +} + static inline void kernel_map_pages(struct page *page, int numpages, int enable) {} #ifdef CONFIG_HIBERNATION static inline bool kernel_page_present(struct page *page) { return true; } #endif /* CONFIG_HIBERNATION */ -#endif +#endif /* CONFIG_DEBUG_PAGEALLOC */ #ifdef __HAVE_ARCH_GATE_AREA extern struct vm_area_struct *get_gate_vma(struct mm_struct *mm); -- 2.3.0