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-rw-r--r--fs/btrfs/ioctl.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index d389815..0770c91 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3588,6 +3588,20 @@ process_slot:
u64 trim = 0;
u64 aligned_end = 0;
+ /*
+ * Don't copy an inline extent into an offset
+ * greater than zero. Having an inline extent
+ * at such an offset results in chaos as btrfs
+ * isn't prepared for such cases. Just skip
+ * this case for the same reasons as commented
+ * at btrfs_ioctl_clone().
+ */
+ if (last_dest_end > 0) {
+ ret = -EOPNOTSUPP;
+ btrfs_end_transaction(trans, root);
+ goto out;
+ }
+
if (off > key.offset) {
skip = off - key.offset;
new_key.offset += skip;
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