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-rw-r--r--fs/cifs/ioctl.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 28a77bf1d559..35cf990f87d3 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -85,9 +85,14 @@ static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
src_tcon = tlink_tcon(smb_file_src->tlink);
target_tcon = tlink_tcon(smb_file_target->tlink);
- /* check if source and target are on same tree connection */
- if (src_tcon != target_tcon) {
- cifs_dbg(VFS, "file copy src and target on different volume\n");
+ /* check source and target on same server (or volume if dup_extents) */
+ if (dup_extents && (src_tcon != target_tcon)) {
+ cifs_dbg(VFS, "source and target of copy not on same share\n");
+ goto out_fput;
+ }
+
+ if (!dup_extents && (src_tcon->ses != target_tcon->ses)) {
+ cifs_dbg(VFS, "source and target of copy not on same server\n");
goto out_fput;
}