diff options
| author | Vasily Gorbik <gor@linux.ibm.com> | 2018-09-14 17:35:46 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-09-20 13:20:29 +0200 |
| commit | 4e62d458850069c9f05e03f99be1a817967e201f (patch) | |
| tree | 36930d2ada8892e0b888c1cddcf9cba830b36c33 /arch/s390/kernel/head64.S | |
| parent | 26f4414a45b808f83d42d6fd2fbf4a59ef25e84b (diff) | |
s390: clean up stacks setup
Replace hard coded stack frame overhead values with STACK_FRAME_OVERHEAD
definition. Avoid unnecessary arithmetic instructions.
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/head64.S')
| -rw-r--r-- | arch/s390/kernel/head64.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S index 6d14ad42ba88..b31dfb102700 100644 --- a/arch/s390/kernel/head64.S +++ b/arch/s390/kernel/head64.S @@ -14,6 +14,7 @@ #include <asm/asm-offsets.h> #include <asm/thread_info.h> #include <asm/page.h> +#include <asm/ptrace.h> __HEAD ENTRY(startup_continue) @@ -35,10 +36,9 @@ ENTRY(startup_continue) # larl %r14,init_task stg %r14,__LC_CURRENT - larl %r15,init_thread_union - aghi %r15,1<<(PAGE_SHIFT+THREAD_SIZE_ORDER) # init_task_union + THREAD_SIZE + larl %r15,init_thread_union+THREAD_SIZE stg %r15,__LC_KERNEL_STACK # set end of kernel stack - aghi %r15,-160 + aghi %r15,-STACK_FRAME_OVERHEAD # # Early setup functions that may not rely on an initialized bss section, # like moving the initrd. Returns with an initialized bss section. |