From 803fc74f06cf3cd23417463ca5a176b41717ec19 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 5 May 2012 15:05:43 +0000 Subject: [PATCH] cris: Use common threadinfo allocator There is no functional difference. __get_free_pages() ends up calling alloc_pages_node(). This also allocates only one page which matches THREAD_SIZE instead of an extra page for nothing. Signed-off-by: Thomas Gleixner Cc: Jesper Nilsson Link: http://lkml.kernel.org/r/20120505150141.681236240@linutronix.de --- arch/cris/include/asm/processor.h | 5 ++--- arch/cris/include/asm/thread_info.h | 6 ------ 2 files changed, 2 insertions(+), 9 deletions(-) diff --git a/arch/cris/include/asm/processor.h b/arch/cris/include/asm/processor.h index 4210d72a6667..8dc56ef08712 100644 --- a/arch/cris/include/asm/processor.h +++ b/arch/cris/include/asm/processor.h @@ -25,13 +25,12 @@ struct task_struct; */ #define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3)) -/* THREAD_SIZE is the size of the task_struct/kernel_stack combo. +/* THREAD_SIZE is the size of the thread_info/kernel_stack combo. * normally, the stack is found by doing something like p + THREAD_SIZE * in CRIS, a page is 8192 bytes, which seems like a sane size */ - #define THREAD_SIZE PAGE_SIZE -#define KERNEL_STACK_SIZE PAGE_SIZE +#define THREAD_SIZE_ORDER (0) /* * At user->kernel entry, the pt_regs struct is stacked on the top of the kernel-stack. diff --git a/arch/cris/include/asm/thread_info.h b/arch/cris/include/asm/thread_info.h index 29b92884d793..5b1c448df5c0 100644 --- a/arch/cris/include/asm/thread_info.h +++ b/arch/cris/include/asm/thread_info.h @@ -65,12 +65,6 @@ struct thread_info { #define init_thread_info (init_thread_union.thread_info) -#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR -/* thread information allocation */ -#define alloc_thread_info_node(tsk, node) \ - ((struct thread_info *) __get_free_pages(GFP_KERNEL, 1)) -#define free_thread_info(ti) free_pages((unsigned long) (ti), 1) - #endif /* !__ASSEMBLY__ */ /* -- 2.39.5