Commit 802e5548 authored by John David Anglin's avatar John David Anglin Committed by Helge Deller
Browse files

parisc: Define and use set_pte_at() 



When a PTE is changed, we need to flush the PTE. set_pte_at()
was lost in the folio update. PA-RISC version is the same as
the generic version.

Signed-off-by: default avatarJohn David Anglin <dave.anglin@bell.net>
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v5.12+
parent 52ce9406

arch/parisc/include/asm/pgtable.h

+4 −3
Original line number Diff line number Diff line
@@ -276,7 +276,7 @@ extern unsigned long *empty_zero_page; 
#define pte_none(x)     (pte_val(x) == 0)

#define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)

#define pte_user(x)	(pte_val(x) & _PAGE_USER)

#define pte_clear(mm, addr, xp)  set_pte(xp, __pte(0))

#define pte_clear(mm, addr, xp) set_pte_at((mm), (addr), (xp), __pte(0))



#define pmd_flag(x)	(pmd_val(x) & PxD_FLAG_MASK)

#define pmd_address(x)	((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
@@ -392,6 +392,7 @@ static inline void set_ptes(struct mm_struct *mm, unsigned long addr, 
	}

}

#define set_ptes set_ptes

#define set_pte_at(mm, addr, ptep, pte) set_ptes(mm, addr, ptep, pte, 1)



/* Used for deferring calls to flush_dcache_page() */
@@ -456,7 +457,7 @@ static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned 
	if (!pte_young(pte)) {

		return 0;

	}

	set_pte(ptep, pte_mkold(pte));

	set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte));

	return 1;

}
@@ -466,7 +467,7 @@ pte_t ptep_clear_flush(struct vm_area_struct *vma, unsigned long addr, pte_t *pt 
struct mm_struct;

static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)

{

	set_pte(ptep, pte_wrprotect(*ptep));

	set_pte_at(mm, addr, ptep, pte_wrprotect(*ptep));

}



#define pte_same(A,B)	(pte_val(A) == pte_val(B))