path: root/kernel
diff options
authorMichael Ellerman <>2016-06-25 21:53:30 +1000
committerLinus Torvalds <>2016-06-25 06:01:28 -0700
commit9521d39976db20f8ef9b56af66661482a17d5364 (patch)
treea910d903725c0bef5b310947e0122b6b30133e27 /kernel
parent086e3eb65e3b04d7186f5e527aa6fc375dd5495c (diff)
Fix build break in fork.c when THREAD_SIZE < PAGE_SIZE
Commit b235beea9e99 ("Clarify naming of thread info/stack allocators") breaks the build on some powerpc configs, where THREAD_SIZE < PAGE_SIZE: kernel/fork.c:235:2: error: implicit declaration of function 'free_thread_stack' kernel/fork.c:355:8: error: assignment from incompatible pointer type stack = alloc_thread_stack_node(tsk, node); ^ Fix it by renaming free_stack() to free_thread_stack(), and updating the return type of alloc_thread_stack_node(). Fixes: b235beea9e99 ("Clarify naming of thread info/stack allocators") Signed-off-by: Michael Ellerman <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'kernel')
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 37b9439b8c07..4a7ec0c6c88c 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -183,13 +183,13 @@ static inline void free_thread_stack(unsigned long *stack)
# else
static struct kmem_cache *thread_stack_cache;
-static struct thread_info *alloc_thread_stack_node(struct task_struct *tsk,
+static unsigned long *alloc_thread_stack_node(struct task_struct *tsk,
int node)
return kmem_cache_alloc_node(thread_stack_cache, THREADINFO_GFP, node);
-static void free_stack(unsigned long *stack)
+static void free_thread_stack(unsigned long *stack)
kmem_cache_free(thread_stack_cache, stack);