1 files changed, 12 insertions, 3 deletions

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 4331b3b5ee1c..4b3ad6ac9a41 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -896,10 +896,19 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
         }
 
         retval = p9_client_wstat(fid, &wstat);
-        if (retval >= 0)
-                retval = inode_setattr(dentry->d_inode, iattr);
+        if (retval < 0)
+                return retval;
+
+        if ((iattr->ia_valid & ATTR_SIZE) &&
+            iattr->ia_size != i_size_read(dentry->d_inode)) {
+                retval = vmtruncate(dentry->d_inode, iattr->ia_size);
+                if (retval)
+                        return retval;
+        }
 
-        return retval;
+        setattr_copy(dentry->d_inode, iattr);
+        mark_inode_dirty(dentry->d_inode);
+        return 0;
 }
 
 /**