From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Wed, 19 Jun 2013 04:39:28 +0000 (+1000)
Subject: Merge remote-tracking branch 'kvm/linux-next'
X-Git-Tag: next-20130619~34
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f1d1c403a294774b013330eeedf485c67648ef66;p=karo-tx-linux.git

Merge remote-tracking branch 'kvm/linux-next'

Conflicts:
	arch/s390/include/asm/pgtable.h
---

f1d1c403a294774b013330eeedf485c67648ef66
diff --cc arch/s390/include/asm/pgtable.h
index e8b6e5b8932c,1d0ad7d2d29a..90dd3a95e72e
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@@ -632,11 -628,10 +628,11 @@@ static inline void pgste_set_unlock(pte
  {
  #ifdef CONFIG_PGSTE
  	asm(
- 		"	nihh	%1,0xff7f\n"	/* clear RCP_PCL_BIT */
+ 		"	nihh	%1,0xff7f\n"	/* clear PCL bit */
  		"	stg	%1,%0\n"
  		: "=Q" (ptep[PTRS_PER_PTE])
 -		: "d" (pgste_val(pgste)), "Q" (ptep[PTRS_PER_PTE]) : "cc");
 +		: "d" (pgste_val(pgste)), "Q" (ptep[PTRS_PER_PTE])
 +		: "cc", "memory");
  	preempt_enable();
  #endif
  }
@@@ -712,19 -700,17 +708,19 @@@ static inline void pgste_set_key(pte_t 
  {
  #ifdef CONFIG_PGSTE
  	unsigned long address;
 -	unsigned long okey, nkey;
 +	unsigned long nkey;
  
 -	if (!pte_present(entry))
 +	if (pte_val(entry) & _PAGE_INVALID)
  		return;
 +	VM_BUG_ON(!(pte_val(*ptep) & _PAGE_INVALID));
  	address = pte_val(entry) & PAGE_MASK;
 -	okey = nkey = page_get_storage_key(address);
 -	nkey &= ~(_PAGE_ACC_BITS | _PAGE_FP_BIT);
 -	/* Set page access key and fetch protection bit from pgste */
 -	nkey |= (pgste_val(pgste) & (PGSTE_ACC_BITS | PGSTE_FP_BIT)) >> 56;
 -	if (okey != nkey)
 -		page_set_storage_key(address, nkey, 0);
 +	/*
 +	 * Set page access key and fetch protection bit from pgste.
 +	 * The guest C/R information is still in the PGSTE, set real
 +	 * key C/R to 0.
 +	 */
- 	nkey = (pgste_val(pgste) & (RCP_ACC_BITS | RCP_FP_BIT)) >> 56;
++	nkey = (pgste_val(pgste) & (PGSTE_ACC_BITS | PGSTE_FP_BIT)) >> 56;
 +	page_set_storage_key(address, nkey, 0);
  #endif
  }