From: Jeff Layton <jlayton@kernel.org>
Date: Tue, 30 Nov 2021 18:38:42 +0000 (-0500)
Subject: ceph: disable copy offload on encrypted inodes
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=3d618cfc3c736e18797c093009f8fa69c1402542;p=ceph-client.git

ceph: disable copy offload on encrypted inodes

If we have an encrypted inode, then the client will need to re-encrypt
the contents of the new object. Disable copy offload to or from
encrypted inodes.

Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
---

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 2ed7f184c0cf..cea442f71e7b 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -2541,6 +2541,10 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off,
 		return -EOPNOTSUPP;
 	}
 
+	/* Every encrypted inode gets its own key, so we can't offload them */
+	if (IS_ENCRYPTED(src_inode) || IS_ENCRYPTED(dst_inode))
+		return -EOPNOTSUPP;
+
 	if (len < src_ci->i_layout.object_size)
 		return -EOPNOTSUPP; /* no remote copy will be done */