[PATCH v16 14/21] powerpc: Use task_stack_page() in current_pt_regs()
From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2019-02-05 12:03:57
Subsystem:
linux for powerpc (32-bit and 64-bit), ptrace support, the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Oleg Nesterov, Linus Torvalds
From: Christophe Leroy <redacted> Change current_pt_regs() to use task_stack_page() rather than current_thread_info() so that it keeps working once we enable THREAD_INFO_IN_TASK. Signed-off-by: Christophe Leroy <redacted> [mpe: Split out of large patch] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> --- arch/powerpc/include/asm/ptrace.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h
index 0b8a735b6d85..64271e562fed 100644
--- a/arch/powerpc/include/asm/ptrace.h
+++ b/arch/powerpc/include/asm/ptrace.h@@ -157,7 +157,7 @@ extern int ptrace_put_reg(struct task_struct *task, int regno, unsigned long data); #define current_pt_regs() \ - ((struct pt_regs *)((unsigned long)current_thread_info() + THREAD_SIZE) - 1) + ((struct pt_regs *)((unsigned long)task_stack_page(current) + THREAD_SIZE) - 1) /* * We use the least-significant bit of the trap field to indicate * whether we have saved the full set of registers, or only a
--
2.20.1