From: Jeff Layton <jlayton@kernel.org>
Date: Thu, 25 Aug 2022 13:31:18 +0000 (-0400)
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=a45172b8d2544c7285cfa6be33d4a5a9ae842139;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 64f8f668970f..bd5e04d994ac 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -2502,6 +2502,10 @@ 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 */