From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Borntraeger Subject: [PATCH/RFC 0/3] Optimize CONFIG_DEBUG_PAGEALLOC Date: Tue, 26 Jan 2016 10:18:22 +0100 Message-ID: <1453799905-10941-1-git-send-email-borntraeger@de.ibm.com> Return-path: Sender: owner-linux-mm@kvack.org To: linux-kernel@vger.kernel.org Cc: akpm@linux-foundation.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, x86@kernel.org, Christian Borntraeger List-Id: linux-arch.vger.kernel.org As CONFIG_DEBUG_PAGEALLOC can be enabled/disabled via kernel parameters we can optimize some cases by checking the enablement state. I have done s390 and x86 as examples. Other architecture can provide followup patches later on. Christian Borntraeger (3): mm: provide debug_pagealloc_enabled() without CONFIG_DEBUG_PAGEALLOC x86: query dynamic DEBUG_PAGEALLOC setting s390: query dynamic DEBUG_PAGEALLOC setting arch/s390/kernel/dumpstack.c | 4 +++- arch/s390/mm/vmem.c | 10 ++++------ arch/x86/kernel/dumpstack.c | 4 +++- arch/x86/mm/init.c | 7 ++++--- arch/x86/mm/pageattr.c | 14 ++++---------- include/linux/mm.h | 4 ++++ 6 files changed, 22 insertions(+), 21 deletions(-) -- 2.3.0 -- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e06smtp11.uk.ibm.com ([195.75.94.107]:35722 "EHLO e06smtp11.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933332AbcAZJSH (ORCPT ); Tue, 26 Jan 2016 04:18:07 -0500 Received: from localhost by e06smtp11.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 26 Jan 2016 09:18:05 -0000 From: Christian Borntraeger Subject: [PATCH/RFC 0/3] Optimize CONFIG_DEBUG_PAGEALLOC Date: Tue, 26 Jan 2016 10:18:22 +0100 Message-ID: <1453799905-10941-1-git-send-email-borntraeger@de.ibm.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: linux-kernel@vger.kernel.org Cc: akpm@linux-foundation.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, x86@kernel.org, Christian Borntraeger Message-ID: <20160126091822.yUasQS2IFwm55Z8gpPYx1AXY6Xoj-YWfk30Od2CXcbM@z> As CONFIG_DEBUG_PAGEALLOC can be enabled/disabled via kernel parameters we can optimize some cases by checking the enablement state. I have done s390 and x86 as examples. Other architecture can provide followup patches later on. Christian Borntraeger (3): mm: provide debug_pagealloc_enabled() without CONFIG_DEBUG_PAGEALLOC x86: query dynamic DEBUG_PAGEALLOC setting s390: query dynamic DEBUG_PAGEALLOC setting arch/s390/kernel/dumpstack.c | 4 +++- arch/s390/mm/vmem.c | 10 ++++------ arch/x86/kernel/dumpstack.c | 4 +++- arch/x86/mm/init.c | 7 ++++--- arch/x86/mm/pageattr.c | 14 ++++---------- include/linux/mm.h | 4 ++++ 6 files changed, 22 insertions(+), 21 deletions(-) -- 2.3.0