Messages in this thread Patch in this message | | | Date | Thu, 18 Jun 2009 16:27:05 +0900 | From | Tejun Heo <> | Subject | [UPDATED PATCH 3/9] CRIS: Change DEFINE_PER_CPU of current_pgd to be non volatile. |
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From: Jesper Nilsson <jesper.nilsson@axis.com> Subject: CRIS: Change DEFINE_PER_CPU of current_pgd to be non volatile.
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.
tj: extern DEFINE_PER_CPU() replaced with DECLARE_PER_CPU()
[ Impact: code cleanup ]
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Tejun Heo <tj@kernel.org> --- Updated such that extern DEFINE -> DECLARE change is done here not later in the series as suggested by Christoph Lameter.
arch/cris/include/asm/mmu_context.h | 3 ++- arch/cris/mm/fault.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-)
Index: work/arch/cris/include/asm/mmu_context.h =================================================================== --- work.orig/arch/cris/include/asm/mmu_context.h +++ work/arch/cris/include/asm/mmu_context.h @@ -17,7 +17,8 @@ extern void switch_mm(struct mm_struct * * 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 */ +DECLARE_PER_CPU(pgd_t *, current_pgd); static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) { Index: work/arch/cris/mm/fault.c =================================================================== --- work.orig/arch/cris/mm/fault.c +++ work/arch/cris/mm/fault.c @@ -29,7 +29,7 @@ extern void die_if_kernel(const char *, /* 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; /*
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