From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: [PATCH 3/9] CRIS: Change DEFINE_PER_CPU of current_pgd to be non volatile. Date: Wed, 17 Jun 2009 12:40:54 +0900 Message-ID: <1245210060-24344-4-git-send-email-tj@kernel.org> References: <1245210060-24344-1-git-send-email-tj@kernel.org> Return-path: Received: from hera.kernel.org ([140.211.167.34]:57196 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752950AbZFQDlc (ORCPT ); Tue, 16 Jun 2009 23:41:32 -0400 In-Reply-To: <1245210060-24344-1-git-send-email-tj@kernel.org> Sender: linux-arch-owner@vger.kernel.org List-ID: To: linux-kernel@vger.kernel.org, x86@kernel.org, linux-arch@vger.kernel.org, mingo@elte.hu, kyle@mcmartin.ca, cl@linux-foundation.org, Jesper.Nilsson@axis.com, benh@kernel.crashing.org Cc: Jesper Nilsson , Tejun Heo From: Jesper Nilsson The DEFINE_PER_CPU of current_pgd was on CRIS defined using volatile, which is not needed. Remove volatile. Tested on an ARTPEC-3 (CRISv32) board. [ Impact: code cleanup ] Signed-off-by: Jesper Nilsson Signed-off-by: Tejun Heo --- arch/cris/include/asm/mmu_context.h | 3 ++- arch/cris/mm/fault.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/cris/include/asm/mmu_context.h b/arch/cris/include/asm/mmu_context.h index 72ba08d..476cd9e 100644 --- a/arch/cris/include/asm/mmu_context.h +++ b/arch/cris/include/asm/mmu_context.h @@ -17,7 +17,8 @@ extern void switch_mm(struct mm_struct *prev, struct mm_struct *next, * registers like cr3 on the i386 */ -extern volatile DEFINE_PER_CPU(pgd_t *,current_pgd); /* defined in arch/cris/mm/fault.c */ +/* defined in arch/cris/mm/fault.c */ +extern DEFINE_PER_CPU(pgd_t *, current_pgd); static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) { diff --git a/arch/cris/mm/fault.c b/arch/cris/mm/fault.c index c4c76db..84d22ae 100644 --- a/arch/cris/mm/fault.c +++ b/arch/cris/mm/fault.c @@ -29,7 +29,7 @@ extern void die_if_kernel(const char *, struct pt_regs *, long); /* current active page directory */ -volatile DEFINE_PER_CPU(pgd_t *,current_pgd); +DEFINE_PER_CPU(pgd_t *, current_pgd); unsigned long cris_signal_return_page; /* -- 1.6.0.2 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from hera.kernel.org ([140.211.167.34]:57196 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752950AbZFQDlc (ORCPT ); Tue, 16 Jun 2009 23:41:32 -0400 From: Tejun Heo Subject: [PATCH 3/9] CRIS: Change DEFINE_PER_CPU of current_pgd to be non volatile. Date: Wed, 17 Jun 2009 12:40:54 +0900 Message-ID: <1245210060-24344-4-git-send-email-tj@kernel.org> In-Reply-To: <1245210060-24344-1-git-send-email-tj@kernel.org> References: <1245210060-24344-1-git-send-email-tj@kernel.org> Sender: linux-arch-owner@vger.kernel.org List-ID: To: linux-kernel@vger.kernel.org, x86@kernel.org, linux-arch@vger.kernel.org, mingo@elte.hu, kyle@mcmartin.ca, cl@linux-foundation.org, Jesper.Nilsson@axis.com, benh@kernel.crashing.org, paulmck@linux.vnet.ibm.com Cc: Jesper Nilsson , Tejun Heo Message-ID: <20090617034054.KZouIuVM1GFwdV8r5Scwmoy0_16osN7rckRYoY0JfoQ@z> From: Jesper Nilsson The DEFINE_PER_CPU of current_pgd was on CRIS defined using volatile, which is not needed. Remove volatile. Tested on an ARTPEC-3 (CRISv32) board. [ Impact: code cleanup ] Signed-off-by: Jesper Nilsson Signed-off-by: Tejun Heo --- arch/cris/include/asm/mmu_context.h | 3 ++- arch/cris/mm/fault.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/cris/include/asm/mmu_context.h b/arch/cris/include/asm/mmu_context.h index 72ba08d..476cd9e 100644 --- a/arch/cris/include/asm/mmu_context.h +++ b/arch/cris/include/asm/mmu_context.h @@ -17,7 +17,8 @@ extern void switch_mm(struct mm_struct *prev, struct mm_struct *next, * registers like cr3 on the i386 */ -extern volatile DEFINE_PER_CPU(pgd_t *,current_pgd); /* defined in arch/cris/mm/fault.c */ +/* defined in arch/cris/mm/fault.c */ +extern DEFINE_PER_CPU(pgd_t *, current_pgd); static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) { diff --git a/arch/cris/mm/fault.c b/arch/cris/mm/fault.c index c4c76db..84d22ae 100644 --- a/arch/cris/mm/fault.c +++ b/arch/cris/mm/fault.c @@ -29,7 +29,7 @@ extern void die_if_kernel(const char *, struct pt_regs *, long); /* current active page directory */ -volatile DEFINE_PER_CPU(pgd_t *,current_pgd); +DEFINE_PER_CPU(pgd_t *, current_pgd); unsigned long cris_signal_return_page; /* -- 1.6.0.2