diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h index af650fb472064a82c09ab508cab7ccd341412c79..a8729ea7e9ac1d12826fb4a0e76923a19af307fa 100644 --- a/arch/s390/include/asm/page.h +++ b/arch/s390/include/asm/page.h @@ -108,9 +108,13 @@ typedef pte_t *pgtable_t; #define __pgprot(x) ((pgprot_t) { (x) } ) static inline void -page_set_storage_key(unsigned long addr, unsigned int skey) +page_set_storage_key(unsigned long addr, unsigned int skey, int mapped) { - asm volatile("sske %0,%1" : : "d" (skey), "a" (addr)); + if (!mapped) + asm volatile(".insn rrf,0xb22b0000,%0,%1,8,0" + : : "d" (skey), "a" (addr)); + else + asm volatile("sske %0,%1" : : "d" (skey), "a" (addr)); } static inline unsigned int diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 85cd4b039de6b90e998185566e8b2f0c78252ac9..f79e7bb9ae1e8a926f7ea885b44b96cedf681338 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -590,7 +590,7 @@ static inline void rcp_unlock(pte_t *ptep) } /* forward declaration for SetPageUptodate in page-flags.h*/ -static inline void page_clear_dirty(struct page *page); +static inline void page_clear_dirty(struct page *page, int mapped); #include static inline void ptep_rcp_copy(pte_t *ptep) @@ -800,7 +800,7 @@ static inline int kvm_s390_test_and_clear_page_dirty(struct mm_struct *mm, } dirty = test_and_clear_bit_simple(KVM_UD_BIT, pgste); if (skey & _PAGE_CHANGED) - page_clear_dirty(page); + page_clear_dirty(page, 1); rcp_unlock(ptep); return dirty; } @@ -975,9 +975,9 @@ static inline int page_test_dirty(struct page *page) } #define __HAVE_ARCH_PAGE_CLEAR_DIRTY -static inline void page_clear_dirty(struct page *page) +static inline void page_clear_dirty(struct page *page, int mapped) { - page_set_storage_key(page_to_phys(page), PAGE_DEFAULT_KEY); + page_set_storage_key(page_to_phys(page), PAGE_DEFAULT_KEY, mapped); } /* diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index c00856ad4e5a15b00450322053914964122f7cf7..0badc6344eb434e2df8313d902f3c986a3d11283 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -208,7 +208,8 @@ static noinline __init void init_kernel_storage_key(void) end_pfn = PFN_UP(__pa(&_end)); for (init_pfn = 0 ; init_pfn < end_pfn; init_pfn++) - page_set_storage_key(init_pfn << PAGE_SHIFT, PAGE_DEFAULT_KEY); + page_set_storage_key(init_pfn << PAGE_SHIFT, + PAGE_DEFAULT_KEY, 0); } static __initdata struct sysinfo_3_2_2 vmms __aligned(PAGE_SIZE); diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index c8e8e1354e1dd403d6bcbb56e5c0d6f8ac3a0b33..9071e984dcf145ceac8afc101c7e644c6b383139 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -627,7 +627,8 @@ setup_memory(void) add_active_range(0, start_chunk, end_chunk); pfn = max(start_chunk, start_pfn); for (; pfn < end_chunk; pfn++) - page_set_storage_key(PFN_PHYS(pfn), PAGE_DEFAULT_KEY); + page_set_storage_key(PFN_PHYS(pfn), + PAGE_DEFAULT_KEY, 0); } psw_set_key(PAGE_DEFAULT_KEY); diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index f4d4120e5128a8fe76580286151017ddb68c497b..6f3c6ae4fe03381755264f7d58b9b5ba57fc286f 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h @@ -108,7 +108,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addres #endif #ifndef __HAVE_ARCH_PAGE_CLEAR_DIRTY -#define page_clear_dirty(page) do { } while (0) +#define page_clear_dirty(page, mapped) do { } while (0) #endif #ifndef __HAVE_ARCH_PAGE_TEST_DIRTY diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 6fa317801e1c72be3e6977b538f49da988be49ee..5f38c460367e41c1d9c7f9dab04fb2af993f52dc 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -310,7 +310,7 @@ static inline void SetPageUptodate(struct page *page) { #ifdef CONFIG_S390 if (!test_and_set_bit(PG_uptodate, &page->flags)) - page_clear_dirty(page); + page_clear_dirty(page, 0); #else /* * Memory barrier must be issued before setting the PG_uptodate bit, diff --git a/mm/rmap.c b/mm/rmap.c index 92e6757f196ed4e3b3598c1f8b7214616a4cbe39..5f17fad1bee8bfcd6281fd955f21019480651d94 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -745,7 +745,7 @@ int page_mkclean(struct page *page) if (mapping) { ret = page_mkclean_file(mapping, page); if (page_test_dirty(page)) { - page_clear_dirty(page); + page_clear_dirty(page, 1); ret = 1; } } @@ -942,7 +942,7 @@ void page_remove_rmap(struct page *page) * containing the swap entry, but page not yet written to swap. */ if ((!PageAnon(page) || PageSwapCache(page)) && page_test_dirty(page)) { - page_clear_dirty(page); + page_clear_dirty(page, 1); set_page_dirty(page); } /*