#include <linux/page_idle.h>
#include <linux/shmem_fs.h>
#include <linux/uaccess.h>
+#include <linux/pkeys.h>
#include <asm/elf.h>
#include <asm/tlb.h>
[ilog2(VM_MERGEABLE)] = "mg",
[ilog2(VM_UFFD_MISSING)]= "um",
[ilog2(VM_UFFD_WP)] = "uw",
-#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
+#ifdef CONFIG_ARCH_HAS_PKEYS
/* These come out via ProtectionKey: */
[ilog2(VM_PKEY_BIT0)] = "",
[ilog2(VM_PKEY_BIT1)] = "",
[ilog2(VM_PKEY_BIT2)] = "",
[ilog2(VM_PKEY_BIT3)] = "",
+#if VM_PKEY_BIT4
+ [ilog2(VM_PKEY_BIT4)] = "",
#endif
+#endif /* CONFIG_ARCH_HAS_PKEYS */
};
size_t i;
}
#endif /* HUGETLB_PAGE */
-void __weak arch_show_smap(struct seq_file *m, struct vm_area_struct *vma)
-{
-}
-
#define SEQ_PUT_DEC(str, val) \
seq_put_decimal_ull_width(m, str, (val) >> 10, 8)
static int show_smap(struct seq_file *m, void *v, int is_pid)
SEQ_PUT_DEC(" kB\nSwap: ", mss->swap);
SEQ_PUT_DEC(" kB\nSwapPss: ",
mss->swap_pss >> PSS_SHIFT);
- SEQ_PUT_DEC(" kB\nLocked: ", mss->pss >> PSS_SHIFT);
+ SEQ_PUT_DEC(" kB\nLocked: ",
+ mss->pss_locked >> PSS_SHIFT);
seq_puts(m, " kB\n");
}
if (!rollup_mode) {
- arch_show_smap(m, vma);
+ if (arch_pkeys_enabled())
+ seq_printf(m, "ProtectionKey: %8u\n", vma_pkey(vma));
show_smap_vma_flags(m, vma);
}
m_cache_vma(m, vma);
if (pte_swp_soft_dirty(pte))
flags |= PM_SOFT_DIRTY;
entry = pte_to_swp_entry(pte);
- frame = swp_type(entry) |
- (swp_offset(entry) << MAX_SWAPFILES_SHIFT);
+ if (pm->show_pfn)
+ frame = swp_type(entry) |
+ (swp_offset(entry) << MAX_SWAPFILES_SHIFT);
flags |= PM_SWAP;
if (is_migration_entry(entry))
page = migration_entry_to_page(entry);
#ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION
else if (is_swap_pmd(pmd)) {
swp_entry_t entry = pmd_to_swp_entry(pmd);
- unsigned long offset = swp_offset(entry);
+ unsigned long offset;
- offset += (addr & ~PMD_MASK) >> PAGE_SHIFT;
- frame = swp_type(entry) |
- (offset << MAX_SWAPFILES_SHIFT);
+ if (pm->show_pfn) {
+ offset = swp_offset(entry) +
+ ((addr & ~PMD_MASK) >> PAGE_SHIFT);
+ frame = swp_type(entry) |
+ (offset << MAX_SWAPFILES_SHIFT);
+ }
flags |= PM_SWAP;
if (pmd_swp_soft_dirty(pmd))
flags |= PM_SOFT_DIRTY;
err = add_to_pagemap(addr, &pme, pm);
if (err)
break;
- if (pm->show_pfn && (flags & PM_PRESENT))
- frame++;
- else if (flags & PM_SWAP)
- frame += (1 << MAX_SWAPFILES_SHIFT);
+ if (pm->show_pfn) {
+ if (flags & PM_PRESENT)
+ frame++;
+ else if (flags & PM_SWAP)
+ frame += (1 << MAX_SWAPFILES_SHIFT);
+ }
}
spin_unlock(ptl);
return err;
pm.show_pfn = file_ns_capable(file, &init_user_ns, CAP_SYS_ADMIN);
pm.len = (PAGEMAP_WALK_SIZE >> PAGE_SHIFT);
- pm.buffer = kmalloc(pm.len * PM_ENTRY_BYTES, GFP_KERNEL);
+ pm.buffer = kmalloc_array(pm.len, PM_ENTRY_BYTES, GFP_KERNEL);
ret = -ENOMEM;
if (!pm.buffer)
goto out_mm;