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| author | Sam Ravnborg <sam@ravnborg.org> | 2012-05-22 16:39:00 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-05-22 12:02:56 -0700 |
| commit | 29af0ebaa24d3078d7fd9747a49a763fe7f9ea3c (patch) | |
| tree | 15481af6c098a1a284693fb50db371a7b30b033b | |
| parent | 72c04af9a2d57b7945cf3de8e71461bd80695d50 (diff) | |
| download | linux-3.10-29af0ebaa24d3078d7fd9747a49a763fe7f9ea3c.tar.gz linux-3.10-29af0ebaa24d3078d7fd9747a49a763fe7f9ea3c.tar.bz2 linux-3.10-29af0ebaa24d3078d7fd9747a49a763fe7f9ea3c.zip | |
sparc32: use the common implementation of alloc_thread_info_node()
With sun4c removed we can fall-back to the common implementation.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | arch/sparc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/sparc/include/asm/thread_info_32.h | 11 | ||||
| -rw-r--r-- | arch/sparc/mm/srmmu.c | 27 |
3 files changed, 2 insertions, 37 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 1ea3fd95475..051af37f2b4 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -37,7 +37,6 @@ config SPARC32 def_bool !64BIT select GENERIC_ATOMIC64 select CLZ_TAB - select ARCH_THREAD_INFO_ALLOCATOR config SPARC64 def_bool 64BIT diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h index 21a38946541..5af66493245 100644 --- a/arch/sparc/include/asm/thread_info_32.h +++ b/arch/sparc/include/asm/thread_info_32.h @@ -77,18 +77,11 @@ register struct thread_info *current_thread_info_reg asm("g6"); /* * thread information allocation */ -#define THREAD_INFO_ORDER 1 - -struct thread_info * alloc_thread_info_node(struct task_struct *tsk, int node); -void free_thread_info(struct thread_info *); +#define THREAD_SIZE_ORDER 1 #endif /* __ASSEMBLY__ */ -/* - * Size of kernel stack for each process. - * Observe the order of get_free_pages() in alloc_thread_info_node(). - * The sun4 has 8K stack too, because it's short on memory, and 16K is a waste. - */ +/* Size of kernel stack for each process */ #define THREAD_SIZE (2 * PAGE_SIZE) /* diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index 8e97e0305b0..256db6b22c5 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -467,33 +467,6 @@ void srmmu_unmapiorange(unsigned long virt_addr, unsigned int len) flush_tlb_all(); } -/* - * On the SRMMU we do not have the problems with limited tlb entries - * for mapping kernel pages, so we just take things from the free page - * pool. As a side effect we are putting a little too much pressure - * on the gfp() subsystem. This setup also makes the logic of the - * iommu mapping code a lot easier as we can transparently handle - * mappings on the kernel stack without any special code. - */ -struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node) -{ - struct thread_info *ret; - - ret = (struct thread_info *)__get_free_pages(GFP_KERNEL, - THREAD_INFO_ORDER); -#ifdef CONFIG_DEBUG_STACK_USAGE - if (ret) - memset(ret, 0, PAGE_SIZE << THREAD_INFO_ORDER); -#endif /* DEBUG_STACK_USAGE */ - - return ret; -} - -void free_thread_info(struct thread_info *ti) -{ - free_pages((unsigned long)ti, THREAD_INFO_ORDER); -} - /* tsunami.S */ extern void tsunami_flush_cache_all(void); extern void tsunami_flush_cache_mm(struct mm_struct *mm); |