Merge branch 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason...

[deliverable/linux.git] / fs / ext2 / file.c

diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index 3b57c9f83c9b9b6469b014a317b0e50c1b1f1cf4..1982c3f11aec421f871c57a701f78fc3b6488d8d 100644 (file)
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -20,6 +20,7 @@
 
 #include <linux/time.h>
 #include <linux/pagemap.h>
+#include <linux/dax.h>
 #include <linux/quotaops.h>
 #include "ext2.h"
 #include "xattr.h"
@@ -31,6 +32,12 @@ static int ext2_dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
        return dax_fault(vma, vmf, ext2_get_block, NULL);
 }
 
+static int ext2_dax_pmd_fault(struct vm_area_struct *vma, unsigned long addr,
+                                               pmd_t *pmd, unsigned int flags)
+{
+       return dax_pmd_fault(vma, addr, pmd, flags, ext2_get_block, NULL);
+}
+
 static int ext2_dax_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
        return dax_mkwrite(vma, vmf, ext2_get_block, NULL);
@@ -38,6 +45,7 @@ static int ext2_dax_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 
 static const struct vm_operations_struct ext2_dax_vm_ops = {
        .fault          = ext2_dax_fault,
+       .pmd_fault      = ext2_dax_pmd_fault,
        .page_mkwrite   = ext2_dax_mkwrite,
        .pfn_mkwrite    = dax_pfn_mkwrite,
 };
@@ -49,7 +57,7 @@ static int ext2_file_mmap(struct file *file, struct vm_area_struct *vma)
 
        file_accessed(file);
        vma->vm_ops = &ext2_dax_vm_ops;
-       vma->vm_flags |= VM_MIXEDMAP;
+       vma->vm_flags |= VM_MIXEDMAP | VM_HUGEPAGE;
        return 0;
 }
 #else