From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754468Ab2EETAc (ORCPT ); Sat, 5 May 2012 15:00:32 -0400 Received: from terminus.zytor.com ([198.137.202.10]:54482 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751207Ab2EETAb (ORCPT ); Sat, 5 May 2012 15:00:31 -0400 Date: Sat, 5 May 2012 12:00:19 -0700 From: tip-bot for Thomas Gleixner Message-ID: Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@kernel.org, ralf@linux-mips.org, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, linux-kernel@vger.kernel.org, ralf@linux-mips.org, tglx@linutronix.de In-Reply-To: <20120503085034.941344764@linutronix.de> References: <20120503085034.941344764@linutronix.de> To: linux-tip-commits@vger.kernel.org Subject: [tip:smp/hotplug] mips: Use generic init_task Git-Commit-ID: 957b369c3d35d73e1d0c3e9d21db791e58984cbb X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.6 (terminus.zytor.com [127.0.0.1]); Sat, 05 May 2012 12:00:25 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 957b369c3d35d73e1d0c3e9d21db791e58984cbb Gitweb: http://git.kernel.org/tip/957b369c3d35d73e1d0c3e9d21db791e58984cbb Author: Thomas Gleixner AuthorDate: Thu, 3 May 2012 09:02:55 +0000 Committer: Thomas Gleixner CommitDate: Sat, 5 May 2012 13:00:24 +0200 mips: Use generic init_task Same code. Use the generic version. The special Makefile treatment is pointless anyway as init_task.o contains only data which is handled by the linker script. So no point on being treated like head text. Make the linker script align the task on THREAD_SIZE and not on PAGE_SIZE, as PAGE_SIZE might be smaller than THREAD_SIZE. Signed-off-by: Thomas Gleixner Cc: Ralf Baechle Link: http://lkml.kernel.org/r/20120503085034.941344764@linutronix.de --- arch/mips/Kconfig | 1 + arch/mips/Makefile | 2 +- arch/mips/kernel/Makefile | 2 +- arch/mips/kernel/init_task.c | 35 ----------------------------------- arch/mips/kernel/vmlinux.lds.S | 2 +- 5 files changed, 4 insertions(+), 38 deletions(-) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 186fc8c..d6c7890 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -30,6 +30,7 @@ config MIPS select HAVE_MEMBLOCK_NODE_MAP select ARCH_DISCARD_MEMBLOCK select GENERIC_SMP_IDLE_THREAD + select HAVE_GENERIC_INIT_TASK menu "Machine selection" diff --git a/arch/mips/Makefile b/arch/mips/Makefile index 4fedf5a..76017c2 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -235,7 +235,7 @@ endif OBJCOPYFLAGS += --remove-section=.reginfo -head-y := arch/mips/kernel/head.o arch/mips/kernel/init_task.o +head-y := arch/mips/kernel/head.o libs-y += arch/mips/lib/ diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile index 0c6877e..fdaf65e 100644 --- a/arch/mips/kernel/Makefile +++ b/arch/mips/kernel/Makefile @@ -2,7 +2,7 @@ # Makefile for the Linux/MIPS kernel. # -extra-y := head.o init_task.o vmlinux.lds +extra-y := head.o vmlinux.lds obj-y += cpu-probe.o branch.o entry.o genex.o irq.o process.o \ ptrace.o reset.o setup.o signal.o syscall.o \ diff --git a/arch/mips/kernel/init_task.c b/arch/mips/kernel/init_task.c deleted file mode 100644 index 5f9a762..0000000 --- a/arch/mips/kernel/init_task.c +++ /dev/null @@ -1,35 +0,0 @@ -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -static struct signal_struct init_signals = INIT_SIGNALS(init_signals); -static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -/* - * Initial thread structure. - * - * We need to make sure that this is 8192-byte aligned due to the - * way process stacks are handled. This is done by making sure - * the linker maps this in the .text segment right after head.S, - * and making head.S ensure the proper alignment. - * - * The things we do for performance.. - */ -union thread_union init_thread_union __init_task_data - __attribute__((__aligned__(THREAD_SIZE))) = - { INIT_THREAD_INFO(init_task) }; - -/* - * Initial task structure. - * - * All other task structs will be allocated on slabs in fork.c - */ -struct task_struct init_task = INIT_TASK(init_task); - -EXPORT_SYMBOL(init_task); diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S index 924da5e..e6772f2 100644 --- a/arch/mips/kernel/vmlinux.lds.S +++ b/arch/mips/kernel/vmlinux.lds.S @@ -72,7 +72,7 @@ SECTIONS .data : { /* Data */ . = . + DATAOFFSET; /* for CONFIG_MAPPED_KERNEL */ - INIT_TASK_DATA(PAGE_SIZE) + INIT_TASK_DATA(THREAD_SIZE) NOSAVE_DATA CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT) READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)