diff --git a/tests/sys/fs/fusefs/forget.cc b/tests/sys/fs/fusefs/forget.cc index c138b7acc4aa..2041d20efae4 100644 --- a/tests/sys/fs/fusefs/forget.cc +++ b/tests/sys/fs/fusefs/forget.cc @@ -1,157 +1,153 @@ /*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2019 The FreeBSD Foundation * * This software was developed by BFF Storage Systems, LLC under sponsorship * from the FreeBSD Foundation. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ extern "C" { #include #include #include #include #include } #include "mockfs.hh" #include "utils.hh" using namespace testing; const char reclaim_mib[] = "debug.try_reclaim_vnode"; class Forget: public FuseTest { public: void SetUp() { if (geteuid() != 0) GTEST_SKIP() << "Only root may use " << reclaim_mib; - if (-1 == sysctlbyname(reclaim_mib, NULL, 0, NULL, 0) && - errno == ENOENT) - GTEST_SKIP() << reclaim_mib << " is not available"; - FuseTest::SetUp(); } }; /* * When a fusefs vnode is reclaimed, it should send a FUSE_FORGET operation. */ TEST_F(Forget, ok) { const char FULLPATH[] = "mountpoint/some_file.txt"; const char RELPATH[] = "some_file.txt"; uint64_t ino = 42; mode_t mode = S_IFREG | 0755; sem_t sem; int err; ASSERT_EQ(0, sem_init(&sem, 0, 0)) << strerror(errno); EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH) .Times(3) .WillRepeatedly(Invoke( ReturnImmediate([=](auto in __unused, auto& out) { SET_OUT_HEADER_LEN(out, entry); out.body.entry.attr.mode = mode; out.body.entry.nodeid = ino; out.body.entry.attr.nlink = 1; out.body.entry.attr_valid = UINT64_MAX; }))); expect_forget(ino, 3, &sem); /* * access(2) the file to force a lookup. Access it twice to double its * lookup count. */ ASSERT_EQ(0, access(FULLPATH, F_OK)) << strerror(errno); ASSERT_EQ(0, access(FULLPATH, F_OK)) << strerror(errno); err = sysctlbyname(reclaim_mib, NULL, 0, FULLPATH, sizeof(FULLPATH)); ASSERT_EQ(0, err) << strerror(errno); sem_wait(&sem); sem_destroy(&sem); } /* * When a directory is reclaimed, the names of its entries vanish from the * namecache */ TEST_F(Forget, invalidate_names) { const char FULLFPATH[] = "mountpoint/some_dir/some_file.txt"; const char FULLDPATH[] = "mountpoint/some_dir"; const char DNAME[] = "some_dir"; const char FNAME[] = "some_file.txt"; uint64_t dir_ino = 42; uint64_t file_ino = 43; int err; EXPECT_LOOKUP(FUSE_ROOT_ID, DNAME) .Times(2) .WillRepeatedly(Invoke( ReturnImmediate([=](auto in __unused, auto& out) { SET_OUT_HEADER_LEN(out, entry); out.body.entry.attr.mode = S_IFDIR | 0755; out.body.entry.nodeid = dir_ino; out.body.entry.attr.nlink = 2; out.body.entry.attr_valid = UINT64_MAX; out.body.entry.entry_valid = UINT64_MAX; }))); /* * Even though we don't reclaim FNAME and its entry is cacheable, we * should get two lookups because the reclaim of DNAME will invalidate * the cached FNAME entry. */ EXPECT_LOOKUP(dir_ino, FNAME) .Times(2) .WillRepeatedly(Invoke( ReturnImmediate([=](auto in __unused, auto& out) { SET_OUT_HEADER_LEN(out, entry); out.body.entry.attr.mode = S_IFREG | 0644; out.body.entry.nodeid = file_ino; out.body.entry.attr.nlink = 1; out.body.entry.attr_valid = UINT64_MAX; out.body.entry.entry_valid = UINT64_MAX; }))); expect_forget(dir_ino, 1); /* Access the file to cache its name */ ASSERT_EQ(0, access(FULLFPATH, F_OK)) << strerror(errno); /* Reclaim the directory, invalidating its children from namecache */ err = sysctlbyname(reclaim_mib, NULL, 0, FULLDPATH, sizeof(FULLDPATH)); ASSERT_EQ(0, err) << strerror(errno); /* Access the file again, causing another lookup */ ASSERT_EQ(0, access(FULLFPATH, F_OK)) << strerror(errno); }