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Diffstat (limited to 'mm/ptdump.c')
-rw-r--r--mm/ptdump.c62
1 files changed, 42 insertions, 20 deletions
diff --git a/mm/ptdump.c b/mm/ptdump.c
index 106e1d66e9f9..9374f29cdc6f 100644
--- a/mm/ptdump.c
+++ b/mm/ptdump.c
@@ -18,7 +18,7 @@ static inline int note_kasan_page_table(struct mm_walk *walk,
{
struct ptdump_state *st = walk->private;
- st->note_page(st, addr, 4, pte_val(kasan_early_shadow_pte[0]));
+ st->note_page_pte(st, addr, kasan_early_shadow_pte[0]);
walk->action = ACTION_CONTINUE;
@@ -38,11 +38,11 @@ static int ptdump_pgd_entry(pgd_t *pgd, unsigned long addr,
return note_kasan_page_table(walk, addr);
#endif
- if (st->effective_prot)
- st->effective_prot(st, 0, pgd_val(val));
+ if (st->effective_prot_pgd)
+ st->effective_prot_pgd(st, val);
if (pgd_leaf(val)) {
- st->note_page(st, addr, 0, pgd_val(val));
+ st->note_page_pgd(st, addr, val);
walk->action = ACTION_CONTINUE;
}
@@ -61,11 +61,11 @@ static int ptdump_p4d_entry(p4d_t *p4d, unsigned long addr,
return note_kasan_page_table(walk, addr);
#endif
- if (st->effective_prot)
- st->effective_prot(st, 1, p4d_val(val));
+ if (st->effective_prot_p4d)
+ st->effective_prot_p4d(st, val);
if (p4d_leaf(val)) {
- st->note_page(st, addr, 1, p4d_val(val));
+ st->note_page_p4d(st, addr, val);
walk->action = ACTION_CONTINUE;
}
@@ -84,11 +84,11 @@ static int ptdump_pud_entry(pud_t *pud, unsigned long addr,
return note_kasan_page_table(walk, addr);
#endif
- if (st->effective_prot)
- st->effective_prot(st, 2, pud_val(val));
+ if (st->effective_prot_pud)
+ st->effective_prot_pud(st, val);
if (pud_leaf(val)) {
- st->note_page(st, addr, 2, pud_val(val));
+ st->note_page_pud(st, addr, val);
walk->action = ACTION_CONTINUE;
}
@@ -106,10 +106,10 @@ static int ptdump_pmd_entry(pmd_t *pmd, unsigned long addr,
return note_kasan_page_table(walk, addr);
#endif
- if (st->effective_prot)
- st->effective_prot(st, 3, pmd_val(val));
+ if (st->effective_prot_pmd)
+ st->effective_prot_pmd(st, val);
if (pmd_leaf(val)) {
- st->note_page(st, addr, 3, pmd_val(val));
+ st->note_page_pmd(st, addr, val);
walk->action = ACTION_CONTINUE;
}
@@ -122,10 +122,10 @@ static int ptdump_pte_entry(pte_t *pte, unsigned long addr,
struct ptdump_state *st = walk->private;
pte_t val = ptep_get_lockless(pte);
- if (st->effective_prot)
- st->effective_prot(st, 4, pte_val(val));
+ if (st->effective_prot_pte)
+ st->effective_prot_pte(st, val);
- st->note_page(st, addr, 4, pte_val(val));
+ st->note_page_pte(st, addr, val);
return 0;
}
@@ -134,9 +134,31 @@ static int ptdump_hole(unsigned long addr, unsigned long next,
int depth, struct mm_walk *walk)
{
struct ptdump_state *st = walk->private;
-
- st->note_page(st, addr, depth, 0);
-
+ pte_t pte_zero = {0};
+ pmd_t pmd_zero = {0};
+ pud_t pud_zero = {0};
+ p4d_t p4d_zero = {0};
+ pgd_t pgd_zero = {0};
+
+ switch (depth) {
+ case 4:
+ st->note_page_pte(st, addr, pte_zero);
+ break;
+ case 3:
+ st->note_page_pmd(st, addr, pmd_zero);
+ break;
+ case 2:
+ st->note_page_pud(st, addr, pud_zero);
+ break;
+ case 1:
+ st->note_page_p4d(st, addr, p4d_zero);
+ break;
+ case 0:
+ st->note_page_pgd(st, addr, pgd_zero);
+ break;
+ default:
+ break;
+ }
return 0;
}
@@ -162,7 +184,7 @@ void ptdump_walk_pgd(struct ptdump_state *st, struct mm_struct *mm, pgd_t *pgd)
mmap_write_unlock(mm);
/* Flush out the last page */
- st->note_page(st, 0, -1, 0);
+ st->note_page_flush(st);
}
static int check_wx_show(struct seq_file *m, void *v)