#include <linux/interrupt.h>
#include <linux/syscalls.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/string.h>
struct vm_area_struct *vma;
spinlock_t *ptl;
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
pgd = pgd_offset(mm, 0xA0000);
if (pgd_none_or_clear_bad(pgd))
goto out;
- pud = pud_offset(pgd, 0xA0000);
+ p4d = p4d_offset(pgd, 0xA0000);
+ if (p4d_none_or_clear_bad(p4d))
+ goto out;
+ pud = pud_offset(p4d, 0xA0000);
if (pud_none_or_clear_bad(pud))
goto out;
pmd = pmd_offset(pud, 0xA0000);
pte_unmap_unlock(pte, ptl);
out:
up_write(&mm->mmap_sem);
- flush_tlb();
+ flush_tlb_mm_range(mm, 0xA0000, 0xA0000 + 32*PAGE_SIZE, 0UL);
}