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-rw-r--r--fs/xfs/linux-2.6/xfs_file.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 2d4be2f247b2..0d4001eafd16 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -413,6 +413,20 @@ xfs_file_open_exec(
413} 413}
414#endif /* HAVE_FOP_OPEN_EXEC */ 414#endif /* HAVE_FOP_OPEN_EXEC */
415 415
416/*
417 * mmap()d file has taken write protection fault and is being made
418 * writable. We can set the page state up correctly for a writable
419 * page, which means we can do correct delalloc accounting (ENOSPC
420 * checking!) and unwritten extent mapping.
421 */
422STATIC int
423xfs_vm_page_mkwrite(
424 struct vm_area_struct *vma,
425 struct page *page)
426{
427 return block_page_mkwrite(vma, page, xfs_get_blocks);
428}
429
416const struct file_operations xfs_file_operations = { 430const struct file_operations xfs_file_operations = {
417 .llseek = generic_file_llseek, 431 .llseek = generic_file_llseek,
418 .read = do_sync_read, 432 .read = do_sync_read,
@@ -465,11 +479,13 @@ const struct file_operations xfs_dir_file_operations = {
465 479
466static struct vm_operations_struct xfs_file_vm_ops = { 480static struct vm_operations_struct xfs_file_vm_ops = {
467 .fault = filemap_fault, 481 .fault = filemap_fault,
482 .page_mkwrite = xfs_vm_page_mkwrite,
468}; 483};
469 484
470#ifdef CONFIG_XFS_DMAPI 485#ifdef CONFIG_XFS_DMAPI
471static struct vm_operations_struct xfs_dmapi_file_vm_ops = { 486static struct vm_operations_struct xfs_dmapi_file_vm_ops = {
472 .fault = xfs_vm_fault, 487 .fault = xfs_vm_fault,
488 .page_mkwrite = xfs_vm_page_mkwrite,
473#ifdef HAVE_VMOP_MPROTECT 489#ifdef HAVE_VMOP_MPROTECT
474 .mprotect = xfs_vm_mprotect, 490 .mprotect = xfs_vm_mprotect,
475#endif 491#endif