---
  fs/xfs/libxfs/xfs_inode_fork.h | 13 +++++++++++++
  fs/xfs/xfs_inode.c             | 10 ++++++++++
  fs/xfs/xfs_symlink.c           |  5 +++++
  3 files changed, 28 insertions(+)

diff --git a/fs/xfs/libxfs/xfs_inode_fork.h b/fs/xfs/libxfs/xfs_inode_fork.h
index bcac769a7df6..ea1a9dd8a763 100644
--- a/fs/xfs/libxfs/xfs_inode_fork.h
+++ b/fs/xfs/libxfs/xfs_inode_fork.h

@@ -47,6 +47,19 @@ struct xfs_ifork {
   */
  #define XFS_IEXT_PUNCH_HOLE_CNT		(1)
  
+/*
+ * Directory entry addition can cause the following,
+ * 1. Data block can be added/removed.
+ *    A new extent can cause extent count to increase by 1.
+ * 2. Free disk block can be added/removed.
+ *    Same behaviour as described above for Data block.
+ * 3. Dabtree blocks.
+ *    XFS_DA_NODE_MAXDEPTH blocks can be added. Each of these can be new
+ *    extents. Hence extent count can increase by XFS_DA_NODE_MAXDEPTH.
+ */
+#define XFS_IEXT_DIR_MANIP_CNT(mp) \
+	((XFS_DA_NODE_MAXDEPTH + 1 + 1) * (mp)->m_dir_geo->fsbcount)
+
  /*
   * Fork handling.
   */

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index b7352bc4c815..4cc787cc4eee 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c

@@ -1042,6 +1042,11 @@ xfs_create(
  	if (error)
  		goto out_trans_cancel;
  
+	error = xfs_iext_count_may_overflow(dp, XFS_DATA_FORK,
+			XFS_IEXT_DIR_MANIP_CNT(mp));
+	if (error)
+		goto out_trans_cancel;
+
  	/*
  	 * A newly created regular or special file just has one directory
  	 * entry pointing to them, but a directory also the "." entry

@@ -1258,6 +1263,11 @@ xfs_link(
  	xfs_trans_ijoin(tp, sip, XFS_ILOCK_EXCL);
  	xfs_trans_ijoin(tp, tdp, XFS_ILOCK_EXCL);
  
+	error = xfs_iext_count_may_overflow(tdp, XFS_DATA_FORK,
+			XFS_IEXT_DIR_MANIP_CNT(mp));
+	if (error)
+		goto error_return;
+
  	/*
  	 * If we are using project inheritance, we only allow hard link
  	 * creation in our tree when the project IDs are the same; else

diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
index 1f43fd7f3209..0b8136a32484 100644
--- a/fs/xfs/xfs_symlink.c
+++ b/fs/xfs/xfs_symlink.c

@@ -220,6 +220,11 @@ xfs_symlink(
  	if (error)
  		goto out_trans_cancel;
  
+	error = xfs_iext_count_may_overflow(dp, XFS_DATA_FORK,
+			XFS_IEXT_DIR_MANIP_CNT(mp));
+	if (error)
+		goto out_trans_cancel;
+
  	/*
  	 * Allocate an inode for the symlink.
  	 */