1 files changed, 3 insertions, 3 deletions

diff --git a/fs/dax.c b/fs/dax.c
index 27ba300660ff..f757cd0e2d07 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1333,7 +1333,7 @@ static int dax_iomap_pmd_fault(struct vm_fault *vmf, pfn_t *pfnp,
          * this is a reliable test.
          */
         pgoff = linear_page_index(vma, pmd_addr);
-        max_pgoff = (i_size_read(inode) - 1) >> PAGE_SHIFT;
+        max_pgoff = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
 
         trace_dax_pmd_fault(inode, vmf, max_pgoff, 0);
 
@@ -1357,13 +1357,13 @@ static int dax_iomap_pmd_fault(struct vm_fault *vmf, pfn_t *pfnp,
         if ((pmd_addr + PMD_SIZE) > vma->vm_end)
                 goto fallback;
 
-        if (pgoff > max_pgoff) {
+        if (pgoff >= max_pgoff) {
                 result = VM_FAULT_SIGBUS;
                 goto out;
         }
 
         /* If the PMD would extend beyond the file size */
-        if ((pgoff | PG_PMD_COLOUR) > max_pgoff)
+        if ((pgoff | PG_PMD_COLOUR) >= max_pgoff)
                 goto fallback;
 
         /*