From mboxrd@z Thu Jan 1 00:00:00 1970 From: akpm@linux-foundation.org Subject: + lib-consolidate-debug_per_cpu_maps.patch added to -mm tree Date: Tue, 12 Apr 2011 14:48:43 -0700 Message-ID: <201104122148.p3CLmhea004694@imap1.linux-foundation.org> Return-path: Received: from smtp1.linux-foundation.org ([140.211.169.13]:42541 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932485Ab1DLVtE (ORCPT ); Tue, 12 Apr 2011 17:49:04 -0400 Sender: linux-arch-owner@vger.kernel.org List-ID: To: mm-commits@vger.kernel.org Cc: sboyd@codeaurora.org, benh@kernel.crashing.org, hpa@zytor.com, linux-arch@vger.kernel.org, mingo@elte.hu, tglx@linutronix.de The patch titled lib: consolidate DEBUG_PER_CPU_MAPS has been added to the -mm tree. Its filename is lib-consolidate-debug_per_cpu_maps.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: lib: consolidate DEBUG_PER_CPU_MAPS From: Stephen Boyd DEBUG_PER_CPU_MAPS is used in lib/cpumask.c as well as in inlcude/linux/cpumask.h and thus it has outgrown its use within x86 and powerpc alone. Any arch with SMP support may want to get some more debugging, so make this option generic. Signed-off-by: Stephen Boyd Cc: Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "H. Peter Anvin" Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton --- arch/powerpc/Kconfig.debug | 12 ------------ arch/x86/Kconfig.debug | 11 ----------- lib/Kconfig.debug | 11 +++++++++++ 3 files changed, 11 insertions(+), 23 deletions(-) diff -puN arch/powerpc/Kconfig.debug~lib-consolidate-debug_per_cpu_maps arch/powerpc/Kconfig.debug --- a/arch/powerpc/Kconfig.debug~lib-consolidate-debug_per_cpu_maps +++ a/arch/powerpc/Kconfig.debug @@ -44,18 +44,6 @@ config DEBUG_STACK_USAGE This option will slow down process creation somewhat. -config DEBUG_PER_CPU_MAPS - bool "Debug access to per_cpu maps" - depends on DEBUG_KERNEL - depends on SMP - default n - ---help--- - Say Y to verify that the per_cpu map being accessed has - been setup. Adds a fair amount of code to kernel memory - and decreases performance. - - Say N if unsure. - config HCALL_STATS bool "Hypervisor call instrumentation" depends on PPC_PSERIES && DEBUG_FS && TRACEPOINTS diff -puN arch/x86/Kconfig.debug~lib-consolidate-debug_per_cpu_maps arch/x86/Kconfig.debug --- a/arch/x86/Kconfig.debug~lib-consolidate-debug_per_cpu_maps +++ a/arch/x86/Kconfig.debug @@ -75,17 +75,6 @@ config DEBUG_STACK_USAGE This option will slow down process creation somewhat. -config DEBUG_PER_CPU_MAPS - bool "Debug access to per_cpu maps" - depends on DEBUG_KERNEL - depends on SMP - ---help--- - Say Y to verify that the per_cpu map being accessed has - been setup. Adds a fair amount of code to kernel memory - and decreases performance. - - Say N if unsure. - config X86_PTDUMP bool "Export kernel pagetable layout to userspace via debugfs" depends on DEBUG_KERNEL diff -puN lib/Kconfig.debug~lib-consolidate-debug_per_cpu_maps lib/Kconfig.debug --- a/lib/Kconfig.debug~lib-consolidate-debug_per_cpu_maps +++ a/lib/Kconfig.debug @@ -968,6 +968,17 @@ config DEBUG_FORCE_WEAK_PER_CPU To ensure that generic code follows the above rules, this option forces all percpu variables to be defined as weak. +config DEBUG_PER_CPU_MAPS + bool "Debug access to per_cpu maps" + depends on DEBUG_KERNEL + depends on SMP + help + Say Y to verify that the per_cpu map being accessed has + been set up. This adds a fair amount of code to kernel memory + and decreases performance. + + Say N if unsure. + config LKDTM tristate "Linux Kernel Dump Test Tool Module" depends on DEBUG_FS _ Patches currently in -mm which might be from sboyd@codeaurora.org are linux-next.patch msm-timer-migrate-to-timer-based-__delay.patch lib-consolidate-debug_per_cpu_maps.patch