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authorSam Ravnborg <sam@ravnborg.org>2012-05-22 16:39:00 +0200
committerDavid S. Miller <davem@davemloft.net>2012-05-22 12:02:56 -0700
commit29af0ebaa24d3078d7fd9747a49a763fe7f9ea3c (patch)
tree15481af6c098a1a284693fb50db371a7b30b033b /arch/sparc
parent72c04af9a2d57b7945cf3de8e71461bd80695d50 (diff)
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>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/Kconfig1
-rw-r--r--arch/sparc/include/asm/thread_info_32.h11
-rw-r--r--arch/sparc/mm/srmmu.c27
3 files changed, 2 insertions, 37 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 1ea3fd954756..051af37f2b49 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 21a38946541d..5af664932452 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 8e97e0305b01..256db6b22c54 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);