Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit f6a843d9 authored by David S. Miller's avatar David S. Miller
Browse files

[SPARC64]: flush_ptrace_access() needs preemption disable. 



Based upon a report by Mariusz Kozlowski.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e5ac71f2

arch/sparc64/kernel/ptrace.c

+4 −0
Original line number Diff line number Diff line
@@ -70,6 +70,8 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page, 
	if (tlb_type == hypervisor)

		return;



	preempt_disable();



#ifdef DCACHE_ALIASING_POSSIBLE

	/* If bit 13 of the kernel address we used to access the

	 * user page is the same as the virtual address that page
@@ -108,6 +110,8 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page, 
		for (; start < end; start += icache_line_size)

			flushi(start);

	}



	preempt_enable();

}



enum sparc_regset {