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-rw-r--r--cmd_migrate.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/cmd_migrate.c b/cmd_migrate.c
index f2a6cc7d..07fc1452 100644
--- a/cmd_migrate.c
+++ b/cmd_migrate.c
@@ -378,6 +378,10 @@ static void copy_file(struct bch_fs *c, struct bch_inode_unpacked *dst,
fiemap_iter_exit(&iter);
fiemap_for_each(src_fd, iter, e) {
+ u64 src_max = roundup(src_size, block_bytes(c));
+
+ e.fe_length = min(e.fe_length, src_max - e.fe_logical);
+
if ((e.fe_logical & (block_bytes(c) - 1)) ||
(e.fe_length & (block_bytes(c) - 1)))
die("Unaligned extent in %s - can't handle", src_path);