From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net (mout.gmx.net [212.227.15.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 409pb53DkJzF2FX for ; Wed, 28 Mar 2018 11:26:25 +1100 (AEDT) From: =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= To: linuxppc-dev@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org, Michael Ellerman , Christophe Leroy , =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= , Benjamin Herrenschmidt , Paul Mackerras , Michal Hocko , Andrew Morton , Vlastimil Babka , Joe Perches , "Oliver O'Halloran" Subject: [PATCH v2 1/5] powerpc: mm: Simplify page_is_ram by using memblock_is_memory Date: Wed, 28 Mar 2018 02:25:40 +0200 Message-Id: <20180328002544.18526-2-j.neuschaefer@gmx.net> In-Reply-To: <20180328002544.18526-1-j.neuschaefer@gmx.net> References: <20180328002544.18526-1-j.neuschaefer@gmx.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Instead of open-coding the search in page_is_ram, call memblock_is_memory. Signed-off-by: Jonathan Neuschäfer --- v2: no changes --- arch/powerpc/mm/mem.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index fe8c61149fb8..da4e1555d61d 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -85,13 +85,7 @@ int page_is_ram(unsigned long pfn) #ifndef CONFIG_PPC64 /* XXX for now */ return pfn < max_pfn; #else - unsigned long paddr = (pfn << PAGE_SHIFT); - struct memblock_region *reg; - - for_each_memblock(memory, reg) - if (paddr >= reg->base && paddr < (reg->base + reg->size)) - return 1; - return 0; + return memblock_is_memory(__pfn_to_phys(pfn)); #endif } -- 2.16.2