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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2022-02-17 13:24:01 +0300
committerThomas Gleixner <tglx@linutronix.de>2022-02-23 00:25:01 +0300
commit2bb0529c0bc0698f3baf3e88ffd61a18eef252a7 (patch)
tree6d14fd0972b9bd98fc5fd450839add3743bb49fb /arch/ia64/include/asm/thread_info.h
parent546c42b2c5c161619736dd730d3df709181999d0 (diff)
downloadlinux-2bb0529c0bc0698f3baf3e88ffd61a18eef252a7.tar.xz
fork, IA64: Provide alloc_thread_stack_node() for IA64
Provide a generic alloc_thread_stack_node() for IA64 and CONFIG_ARCH_THREAD_STACK_ALLOCATOR which returns stack pointer and sets task_struct::stack so it behaves exactly like the other implementations. Rename IA64's alloc_thread_stack_node() and add the generic version to the fork code so it is in one place _and_ to drastically lower the chances of fat fingering the IA64 code. Do the same for free_thread_stack(). Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Andy Lutomirski <luto@kernel.org> Link: https://lore.kernel.org/r/20220217102406.3697941-4-bigeasy@linutronix.de
Diffstat (limited to 'arch/ia64/include/asm/thread_info.h')
-rw-r--r--arch/ia64/include/asm/thread_info.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h
index 51d20cb37706..1684716f0820 100644
--- a/arch/ia64/include/asm/thread_info.h
+++ b/arch/ia64/include/asm/thread_info.h
@@ -55,15 +55,15 @@ struct thread_info {
#ifndef ASM_OFFSETS_C
/* how to get the thread information struct from C */
#define current_thread_info() ((struct thread_info *) ((char *) current + IA64_TASK_SIZE))
-#define alloc_thread_stack_node(tsk, node) \
+#define arch_alloc_thread_stack_node(tsk, node) \
((unsigned long *) ((char *) (tsk) + IA64_TASK_SIZE))
#define task_thread_info(tsk) ((struct thread_info *) ((char *) (tsk) + IA64_TASK_SIZE))
#else
#define current_thread_info() ((struct thread_info *) 0)
-#define alloc_thread_stack_node(tsk, node) ((unsigned long *) 0)
+#define arch_alloc_thread_stack_node(tsk, node) ((unsigned long *) 0)
#define task_thread_info(tsk) ((struct thread_info *) 0)
#endif
-#define free_thread_stack(tsk) /* nothing */
+#define arch_free_thread_stack(tsk) /* nothing */
#define task_stack_page(tsk) ((void *)(tsk))
#define __HAVE_THREAD_FUNCTIONS