Commit 0f7e8efa authored by Guo Ren's avatar Guo Ren
Browse files

csky: Fixup do_page_fault parent irq status 



We must succeed parent's context irq status in page fault handler.

Signed-off-by: default avatarGuo Ren <guoren@linux.alibaba.com>
parent 06f3f764

arch/csky/kernel/entry.S

+1 −1
Original line number Diff line number Diff line
@@ -42,7 +42,7 @@ ENTRY(csky_pagefault) 
	SAVE_ALL 0

	zero_fp

	context_tracking

	psrset  ee, ie

	psrset  ee

	mov     a0, sp

	jbsr    do_page_fault

	jmpi    ret_from_exception

arch/csky/mm/fault.c

+4 −0
Original line number Diff line number Diff line
@@ -143,6 +143,10 @@ asmlinkage void do_page_fault(struct pt_regs *regs) 
		return;

	}



	/* Enable interrupts if they were enabled in the parent context. */

	if (likely(regs->sr & BIT(6)))

		local_irq_enable();



	/*

	 * If we're in an interrupt or have no user

	 * context, we must not take the fault..