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Diffstat (limited to 'arch/s390/mm/dump_pagetables.c')
-rw-r--r--arch/s390/mm/dump_pagetables.c24
1 files changed, 2 insertions, 22 deletions
diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c
index d46cadeda204..8556d6be9b54 100644
--- a/arch/s390/mm/dump_pagetables.c
+++ b/arch/s390/mm/dump_pagetables.c
@@ -18,9 +18,7 @@ enum address_markers_idx {
KERNEL_END_NR,
VMEMMAP_NR,
VMALLOC_NR,
-#ifdef CONFIG_64BIT
MODULES_NR,
-#endif
};
static struct addr_marker address_markers[] = {
@@ -29,9 +27,7 @@ static struct addr_marker address_markers[] = {
[KERNEL_END_NR] = {(unsigned long)&_end, "Kernel Image End"},
[VMEMMAP_NR] = {0, "vmemmap Area"},
[VMALLOC_NR] = {0, "vmalloc Area"},
-#ifdef CONFIG_64BIT
[MODULES_NR] = {0, "Modules Area"},
-#endif
{ -1, NULL }
};
@@ -127,12 +123,6 @@ static void walk_pte_level(struct seq_file *m, struct pg_state *st,
}
}
-#ifdef CONFIG_64BIT
-#define _PMD_PROT_MASK _SEGMENT_ENTRY_PROTECT
-#else
-#define _PMD_PROT_MASK 0
-#endif
-
static void walk_pmd_level(struct seq_file *m, struct pg_state *st,
pud_t *pud, unsigned long addr)
{
@@ -145,7 +135,7 @@ static void walk_pmd_level(struct seq_file *m, struct pg_state *st,
pmd = pmd_offset(pud, addr);
if (!pmd_none(*pmd)) {
if (pmd_large(*pmd)) {
- prot = pmd_val(*pmd) & _PMD_PROT_MASK;
+ prot = pmd_val(*pmd) & _SEGMENT_ENTRY_PROTECT;
note_page(m, st, prot, 3);
} else
walk_pte_level(m, st, pmd, addr);
@@ -155,12 +145,6 @@ static void walk_pmd_level(struct seq_file *m, struct pg_state *st,
}
}
-#ifdef CONFIG_64BIT
-#define _PUD_PROT_MASK _REGION3_ENTRY_RO
-#else
-#define _PUD_PROT_MASK 0
-#endif
-
static void walk_pud_level(struct seq_file *m, struct pg_state *st,
pgd_t *pgd, unsigned long addr)
{
@@ -173,7 +157,7 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st,
pud = pud_offset(pgd, addr);
if (!pud_none(*pud))
if (pud_large(*pud)) {
- prot = pud_val(*pud) & _PUD_PROT_MASK;
+ prot = pud_val(*pud) & _REGION3_ENTRY_RO;
note_page(m, st, prot, 2);
} else
walk_pmd_level(m, st, pud, addr);
@@ -230,13 +214,9 @@ static int pt_dump_init(void)
* kernel ASCE. We need this to keep the page table walker functions
* from accessing non-existent entries.
*/
-#ifdef CONFIG_32BIT
- max_addr = 1UL << 31;
-#else
max_addr = (S390_lowcore.kernel_asce & _REGION_ENTRY_TYPE_MASK) >> 2;
max_addr = 1UL << (max_addr * 11 + 31);
address_markers[MODULES_NR].start_address = MODULES_VADDR;
-#endif
address_markers[VMEMMAP_NR].start_address = (unsigned long) vmemmap;
address_markers[VMALLOC_NR].start_address = VMALLOC_START;
debugfs_create_file("kernel_page_tables", 0400, NULL, NULL, &ptdump_fops);