NFSv4: Dont list system.nfs4_acl for filesystems that don't support it.

[safe/jmp/linux-2.6] / mm / msync.c

diff --git a/mm/msync.c b/mm/msync.c
index b3f4caf..3563a56 100644 (file)
--- a/mm/msync.c
+++ b/mm/msync.c
@@ -27,7 +27,6 @@ static void msync_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 again:
        pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl);
        do {
-               unsigned long pfn;
                struct page *page;
 
                if (progress >= 64) {
@@ -40,13 +39,9 @@ again:
                        continue;
                if (!pte_maybe_dirty(*pte))
                        continue;
-               pfn = pte_pfn(*pte);
-               if (unlikely(!pfn_valid(pfn))) {
-                       print_bad_pte(vma, *pte, addr);
+               page = vm_normal_page(vma, addr, *pte);
+               if (!page)
                        continue;
-               }
-               page = pfn_to_page(pfn);
-
                if (ptep_clear_flush_dirty(vma, addr, pte) ||
                    page_test_and_clear_dirty(page))
                        set_page_dirty(page);
@@ -97,9 +92,8 @@ static void msync_page_range(struct vm_area_struct *vma,
        /* For hugepages we can't go walking the page table normally,
         * but that's ok, hugetlbfs is memory based, so we don't need
         * to do anything more on an msync().
-        * Can't do anything with VM_UNPAGED regions either.
         */
-       if (vma->vm_flags & (VM_HUGETLB|VM_UNPAGED))
+       if (vma->vm_flags & VM_HUGETLB)
                return;
 
        BUG_ON(addr >= end);
@@ -143,7 +137,7 @@ static int msync_interval(struct vm_area_struct *vma,
                        ret = filemap_fdatawrite(mapping);
                        if (file->f_op && file->f_op->fsync) {
                                /*
-                                * We don't take i_sem here because mmap_sem
+                                * We don't take i_mutex here because mmap_sem
                                 * is already held.
                                 */
                                err = file->f_op->fsync(file,file->f_dentry,1);