int install_page(struct mm_struct *mm, struct vm_area_struct *vma,
unsigned long addr, struct page *page, pgprot_t prot)
{
- struct inode *inode;
- pgoff_t size;
int err = -ENOMEM;
pte_t *pte;
pgd_t *pgd;
if (!pte)
goto err_unlock;
- /*
- * This page may have been truncated. Tell the
- * caller about it.
- */
- err = -EINVAL;
- inode = vma->vm_file->f_mapping->host;
- size = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
- if (!page->mapping || page->index >= size)
- goto err_unlock;
-
zap_pte(mm, vma, addr, pte);
// mm->rss++;