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tests/9p: Test Tsetattr can truncate unlinked file

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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 <qemu_oss@crudebyte.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <20250312152933.383967-7-groug@kaod.org>
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
This commit is contained in:
Greg Kurz 2025-03-12 16:29:32 +01:00 • committed by Christian Schoenebeck
parent 4719a2d591
commit 610dc187e5
1 changed files with 14 additions and 0 deletions
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14
tests/qtest/virtio-9p-test.c
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@ -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)