__test_extent_overwrite(c, 32, 64, 32, 128);
}
+static int insert_test_overlapping_extent(struct bch_fs *c, u64 inum, u64 start, u32 len, u32 snapid)
+{
+ struct bkey_i_cookie k;
+ int ret;
+
+ bkey_cookie_init(&k.k_i);
+ k.k_i.k.p.inode = inum;
+ k.k_i.k.p.offset = start + len;
+ k.k_i.k.p.snapshot = snapid;
+ k.k_i.k.size = len;
+
+ ret = bch2_trans_do(c, NULL, NULL, 0,
+ bch2_btree_insert_nonextent(&trans, BTREE_ID_extents, &k.k_i,
+ BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE));
+ if (ret)
+ bch_err_fn(c, ret);
+ return ret;
+}
+
+static int test_extent_create_overlapping(struct bch_fs *c, u64 inum)
+{
+ return insert_test_overlapping_extent(c, inum, 0, 16, U32_MAX - 2) ?: /* overwrite entire */
+ insert_test_overlapping_extent(c, inum, 2, 8, U32_MAX - 2) ?:
+ insert_test_overlapping_extent(c, inum, 4, 4, U32_MAX) ?:
+ insert_test_overlapping_extent(c, inum, 32, 8, U32_MAX - 2) ?: /* overwrite front/back */
+ insert_test_overlapping_extent(c, inum, 36, 8, U32_MAX) ?:
+ insert_test_overlapping_extent(c, inum, 60, 8, U32_MAX - 2) ?:
+ insert_test_overlapping_extent(c, inum, 64, 8, U32_MAX);
+}
+
/* snapshot unit tests */
/* Test skipping over keys in unrelated snapshots: */
perf_test(test_extent_overwrite_back);
perf_test(test_extent_overwrite_middle);
perf_test(test_extent_overwrite_all);
+ perf_test(test_extent_create_overlapping);
perf_test(test_snapshots);