1 files changed, 48 insertions, 0 deletions

diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 1e2ae21bd6b6..8055e30eb14d 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -187,6 +187,44 @@ struct dentry *f2fs_get_parent(struct dentry *child)
         return d_obtain_alias(f2fs_iget(child->d_inode->i_sb, ino));
 }
 
+static int __recover_dot_dentries(struct inode *dir, nid_t pino)
+{
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
+        struct qstr dot = QSTR_INIT(".", 1);
+        struct qstr dotdot = QSTR_INIT("..", 2);
+        struct f2fs_dir_entry *de;
+        struct page *page;
+        int err = 0;
+
+        f2fs_lock_op(sbi);
+
+        de = f2fs_find_entry(dir, &dot, &page);
+        if (de) {
+                f2fs_dentry_kunmap(dir, page);
+                f2fs_put_page(page, 0);
+        } else {
+                err = __f2fs_add_link(dir, &dot, NULL, dir->i_ino, S_IFDIR);
+                if (err)
+                        goto out;
+        }
+
+        de = f2fs_find_entry(dir, &dotdot, &page);
+        if (de) {
+                f2fs_dentry_kunmap(dir, page);
+                f2fs_put_page(page, 0);
+        } else {
+                err = __f2fs_add_link(dir, &dotdot, NULL, pino, S_IFDIR);
+        }
+out:
+        if (!err) {
+                clear_inode_flag(F2FS_I(dir), FI_INLINE_DOTS);
+                mark_inode_dirty(dir);
+        }
+
+        f2fs_unlock_op(sbi);
+        return err;
+}
+
 static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
                 unsigned int flags)
 {
@@ -206,6 +244,16 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
                 inode = f2fs_iget(dir->i_sb, ino);
                 if (IS_ERR(inode))
                         return ERR_CAST(inode);
+
+                if (f2fs_has_inline_dots(inode)) {
+                        int err;
+
+                        err = __recover_dot_dentries(inode, dir->i_ino);
+                        if (err) {
+                                iget_failed(inode);
+                                return ERR_PTR(err);
+                        }
+                }
         }
 
         return d_splice_alias(inode, dentry);