vfs: allow copy_file_range to copy across devices

[mirror_ubuntu-jammy-kernel.git] / fs / ceph / file.c

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 31d450536175214506eb5be81bf708fabd0f722c..c5517ffeb11c7cdf2f3c7c0599b8cf4c675976a9 100644 (file)
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -1909,6 +1909,8 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off,
 
        if (src_inode == dst_inode)
                return -EINVAL;
+       if (src_inode->i_sb != dst_inode->i_sb)
+               return -EXDEV;
        if (ceph_snap(dst_inode) != CEPH_NOSNAP)
                return -EROFS;
 
@@ -2109,7 +2111,7 @@ static ssize_t ceph_copy_file_range(struct file *src_file, loff_t src_off,
        ret = __ceph_copy_file_range(src_file, src_off, dst_file, dst_off,
                                     len, flags);
 
-       if (ret == -EOPNOTSUPP)
+       if (ret == -EOPNOTSUPP || ret == -EXDEV)
                ret = generic_copy_file_range(src_file, src_off, dst_file,
                                              dst_off, len, flags);
        return ret;