From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f43.google.com (mail-pa0-f43.google.com [209.85.220.43]) by kanga.kvack.org (Postfix) with ESMTP id EDB196B0005 for ; Tue, 26 Jan 2016 18:23:28 -0500 (EST) Received: by mail-pa0-f43.google.com with SMTP id yy13so104862730pab.3 for ; Tue, 26 Jan 2016 15:23:28 -0800 (PST) Received: from mail-pa0-x235.google.com (mail-pa0-x235.google.com. [2607:f8b0:400e:c03::235]) by mx.google.com with ESMTPS id we2si4873799pac.127.2016.01.26.15.23.28 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 26 Jan 2016 15:23:28 -0800 (PST) Received: by mail-pa0-x235.google.com with SMTP id yy13so104862615pab.3 for ; Tue, 26 Jan 2016 15:23:28 -0800 (PST) Date: Tue, 26 Jan 2016 15:23:26 -0800 (PST) From: David Rientjes Subject: Re: [PATCH/RFC 1/3] mm: provide debug_pagealloc_enabled() without CONFIG_DEBUG_PAGEALLOC In-Reply-To: <1453799905-10941-2-git-send-email-borntraeger@de.ibm.com> Message-ID: References: <1453799905-10941-1-git-send-email-borntraeger@de.ibm.com> <1453799905-10941-2-git-send-email-borntraeger@de.ibm.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Christian Borntraeger Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, x86@kernel.org On Tue, 26 Jan 2016, Christian Borntraeger wrote: > 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 > --- > include/linux/mm.h | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/include/linux/mm.h b/include/linux/mm.h > index 7783073..fbc5354 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -2148,6 +2148,10 @@ kernel_map_pages(struct page *page, int numpages, int enable) > extern bool kernel_page_present(struct page *page); > #endif /* CONFIG_HIBERNATION */ > #else > +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 Since the patchset needs to be refreshed based on Heiko and Thomas's comments, please add some /* CONFIG_DEBUG_PAGEALLOC */ annotation to the #else and #endif lines so this block is easier to read. After that, feel free to add Acked-by: David Rientjes -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org