6 files changed, 12 insertions, 30 deletions
diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h
index 90ac9f34b4b4..e1e396367ba7 100644
--- a/arch/microblaze/include/asm/page.h
+++ b/arch/microblaze/include/asm/page.h
@@ -45,7 +45,6 @@ typedef unsigned long pte_basic_t;
 # define copy_page(to, from)			memcpy((to), (from), PAGE_SIZE)
 # define clear_page(pgaddr)			memset((pgaddr), 0, PAGE_SIZE)
 
-# define clear_user_page(pgaddr, vaddr, page)	memset((pgaddr), 0, PAGE_SIZE)
 # define copy_user_page(vto, vfrom, vaddr, topg) \
 			memcpy((vto), (vfrom), PAGE_SIZE)
 
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
index 4eb76de6be4a..7678c040a2fd 100644
--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -207,16 +207,6 @@ extern pte_t *va_to_pte(unsigned long address);
  * Also, write permissions imply read permissions.
  */
 
-#ifndef __ASSEMBLER__
-/*
- * ZERO_PAGE is a global shared page that is always zero: used
- * for zero-mapped memory areas etc..
- */
-extern unsigned long empty_zero_page[1024];
-#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
-
-#endif /* __ASSEMBLER__ */
-
 #define pte_none(pte)		((pte_val(pte) & ~_PTE_NONE_MASK) == 0)
 #define pte_present(pte)	(pte_val(pte) & _PAGE_PRESENT)
 #define pte_clear(mm, addr, ptep) \
@@ -328,7 +318,7 @@ static inline void set_pte(pte_t *ptep, pte_t pte)
 
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 struct vm_area_struct;
-static inline int ptep_test_and_clear_young(struct vm_area_struct *vma,
+static inline bool ptep_test_and_clear_young(struct vm_area_struct *vma,
 		unsigned long address, pte_t *ptep)
 {
 	return (pte_update(ptep, _PAGE_ACCESSED, 0) & _PAGE_ACCESSED) != 0;
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
index ec2fcb545e64..808019c3b7ac 100644
--- a/arch/microblaze/kernel/head.S
+++ b/arch/microblaze/kernel/head.S
@@ -39,10 +39,6 @@
 #include <asm/processor.h>
 
 .section .data
-.global empty_zero_page
-.align 12
-empty_zero_page:
-	.space	PAGE_SIZE
 .global swapper_pg_dir
 swapper_pg_dir:
 	.space	PAGE_SIZE
diff --git a/arch/microblaze/kernel/microblaze_ksyms.c b/arch/microblaze/kernel/microblaze_ksyms.c
index a8553f54152b..ad7596d7ba07 100644
--- a/arch/microblaze/kernel/microblaze_ksyms.c
+++ b/arch/microblaze/kernel/microblaze_ksyms.c
@@ -33,8 +33,6 @@ EXPORT_SYMBOL(memcpy);
 EXPORT_SYMBOL(memmove);
 #endif
 
-EXPORT_SYMBOL(empty_zero_page);
-
 EXPORT_SYMBOL(mbc);
 
 extern void __divsi3(void);
diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl
index 022fc85d94b3..223d26303627 100644
--- a/arch/microblaze/kernel/syscalls/syscall.tbl
+++ b/arch/microblaze/kernel/syscalls/syscall.tbl
@@ -476,3 +476,4 @@
 468	common	file_getattr			sys_file_getattr
 469	common	file_setattr			sys_file_setattr
 470	common	listns				sys_listns
+471	common	rseq_slice_yield		sys_rseq_slice_yield
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 31d475cdb1c5..848cdee1380c 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -54,32 +54,30 @@ static void __init highmem_init(void)
 }
 #endif /* CONFIG_HIGHMEM */
 
+void __init arch_zone_limits_init(unsigned long *max_zone_pfns)
+{
+#ifdef CONFIG_HIGHMEM
+	max_zone_pfns[ZONE_DMA] = max_low_pfn;
+	max_zone_pfns[ZONE_HIGHMEM] = max_pfn;
+#else
+	max_zone_pfns[ZONE_DMA] = max_pfn;
+#endif
+}
+
 /*
  * paging_init() sets up the page tables - in fact we've already done this.
  */
 static void __init paging_init(void)
 {
-	unsigned long zones_size[MAX_NR_ZONES];
 	int idx;
 
 	/* Setup fixmaps */
 	for (idx = 0; idx < __end_of_fixed_addresses; idx++)
 		clear_fixmap(idx);
 
-	/* Clean every zones */
-	memset(zones_size, 0, sizeof(zones_size));
-
 #ifdef CONFIG_HIGHMEM
 	highmem_init();
-
-	zones_size[ZONE_DMA] = max_low_pfn;
-	zones_size[ZONE_HIGHMEM] = max_pfn;
-#else
-	zones_size[ZONE_DMA] = max_pfn;
 #endif
-
-	/* We don't have holes in memory map */
-	free_area_init(zones_size);
 }
 
 void __init setup_memory(void)