From: Hirokazu Takata <takata@linux-m32r.org>
- Use kmalloc for m32r stacks (cf. changeset 1.1046.533.10)
- Update for CONFIG_DEBUG_STACK_USAGE
This modification was taken from include/asm-i386/thread_info.h.
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
25-akpm/include/asm-m32r/thread_info.h | 18 +++++++++++++++---
1 files changed, 15 insertions(+), 3 deletions(-)
diff -puN include/asm-m32r/thread_info.h~m32r-use-kmalloc-for-m32r-stacks-2-2 include/asm-m32r/thread_info.h
--- 25/include/asm-m32r/thread_info.h~m32r-use-kmalloc-for-m32r-stacks-2-2 Fri Dec 17 15:30:39 2004
+++ 25-akpm/include/asm-m32r/thread_info.h Fri Dec 17 15:30:39 2004
@@ -95,9 +95,21 @@ static inline struct thread_info *curren
}
/* thread information allocation */
-#define alloc_thread_info(task) \
- ((struct thread_info *) __get_free_pages(GFP_KERNEL,1))
-#define free_thread_info(ti) free_pages((unsigned long) (ti), 1)
+#if CONFIG_DEBUG_STACK_USAGE
+#define alloc_thread_info(tsk) \
+ ({ \
+ struct thread_info *ret; \
+ \
+ ret = kmalloc(THREAD_SIZE, GFP_KERNEL); \
+ if (ret) \
+ memset(ret, 0, THREAD_SIZE); \
+ ret; \
+ })
+#else
+#define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, GFP_KERNEL)
+#endif
+
+#define free_thread_info(info) kfree(info)
#define get_thread_info(ti) get_task_struct((ti)->task)
#define put_thread_info(ti) put_task_struct((ti)->task)
_