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| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2016-06-27 07:57:21 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-06-28 09:33:00 +0200 |
| commit | c3bdf2e11a10ea804d69a6d1ba1e8a061efb0fa8 (patch) | |
| tree | f31b4a6b6d3fcee839a3e5b869243ca912094f0f /arch/s390/include/asm/kprobes.h | |
| parent | s390: remove pointless load within __switch_to (diff) | |
| download | linux-dev-c3bdf2e11a10ea804d69a6d1ba1e8a061efb0fa8.tar.xz linux-dev-c3bdf2e11a10ea804d69a6d1ba1e8a061efb0fa8.zip | |
s390: stack address vs thread_info
Avoid using the address of a process' thread_info structure as the
kernel stack address. This will break as soon as the thread_info
structure will be removed from the stack, and in addition it makes the
code a bit more understandable.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/kprobes.h')
| -rw-r--r-- | arch/s390/include/asm/kprobes.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/include/asm/kprobes.h b/arch/s390/include/asm/kprobes.h index b47ad3b642cc..591e5a5279b0 100644 --- a/arch/s390/include/asm/kprobes.h +++ b/arch/s390/include/asm/kprobes.h @@ -43,9 +43,9 @@ typedef u16 kprobe_opcode_t; #define MAX_INSN_SIZE 0x0003 #define MAX_STACK_SIZE 64 #define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \ - (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) \ + (((unsigned long)task_stack_page(current)) + THREAD_SIZE - (ADDR))) \ ? (MAX_STACK_SIZE) \ - : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) + : (((unsigned long)task_stack_page(current)) + THREAD_SIZE - (ADDR))) #define kretprobe_blacklist_size 0 |