From 610dc187e52605c8ea8d14c5e7d8e7384f8af290 Mon Sep 17 00:00:00 2001 From: Greg Kurz Date: Wed, 12 Mar 2025 16:29:32 +0100 Subject: [PATCH] tests/9p: Test `Tsetattr` can truncate unlinked file Enhance the `use-after-unlink` test with a new check for the case where the client wants to alter the size of an unlinked file for which it still has an active fid. Suggested-by: Christian Schoenebeck Signed-off-by: Greg Kurz Reviewed-by: Christian Schoenebeck Message-Id: <20250312152933.383967-7-groug@kaod.org> Signed-off-by: Christian Schoenebeck --- tests/qtest/virtio-9p-test.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/tests/qtest/virtio-9p-test.c b/tests/qtest/virtio-9p-test.c index f515a9bb15..ac38ccf595 100644 --- a/tests/qtest/virtio-9p-test.c +++ b/tests/qtest/virtio-9p-test.c @@ -736,6 +736,20 @@ static void fs_use_after_unlink(void *obj, void *data, .data = buf }).count; g_assert_cmpint(count, ==, write_count); + + /* truncate file to (arbitrarily chosen) size 2001 */ + tsetattr({ + .client = v9p, .fid = fid_file, .attr = (v9fs_attr) { + .valid = P9_SETATTR_SIZE, + .size = 2001 + } + }); + /* truncate apparently succeeded, let's double-check the size */ + tgetattr({ + .client = v9p, .fid = fid_file, .request_mask = P9_GETATTR_BASIC, + .rgetattr.attr = &attr + }); + g_assert_cmpint(attr.size, ==, 2001); } static void cleanup_9p_local_driver(void *data) -- 2.39.5