[PATCH] limit thread stack size with >4K pages

This patch limits the thread stack size when pages >4 K were selected.
i.e. THREAD_SIZE is calculated to "MAX(16K, PAGE_SIZE)"

diff-tree 6033080df2431638223580559ebea54efb22bc42 (from cd54f53359c3e0deb898a5dbb199b70c5cb6ef0f)
Author: Helge Deller <[email protected]>
Date:   Sat Mar 17 13:19:01 2007 +0100

    [PARISC] limit thread stack size with >4K pages
    
    Signed-off-by: Helge Deller <[email protected]>

diff --git a/include/asm-parisc/thread_info.h b/include/asm-parisc/thread_info.h
index 949314c..ec92d66 100644
--- a/include/asm-parisc/thread_info.h
+++ b/include/asm-parisc/thread_info.h
@@ -34,11 +34,16 @@ struct thread_info {
 
 /* thread information allocation */
 
-#define THREAD_ORDER            2
+#if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
+# define THREAD_ORDER	2
+#elif defined(CONFIG_PARISC_PAGE_SIZE_16KB)
+# define THREAD_ORDER	0
+#elif defined(CONFIG_PARISC_PAGE_SIZE_64KB)
+# define THREAD_ORDER	0
+#endif
 /* Be sure to hunt all references to this down when you change the size of
  * the kernel stack */
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_ORDER)
-#define THREAD_SHIFT            (PAGE_SHIFT + THREAD_ORDER)
 
 #define alloc_thread_info(tsk) ((struct thread_info *) \
 			__get_free_pages(GFP_KERNEL, THREAD_ORDER))