powerpc: Use task_stack_page() in current_pt_regs() (b72cc2e7) · Commits · 戴 / test

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 <christophe.leroy@c-s.fr> [mpe: Split out of large patch] Signed-off-by:

Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/include/asm/ptrace.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -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

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