remove ceph code
[stor4nfv.git] / src / ceph / src / test / test_filejournal.cc
diff --git a/src/ceph/src/test/test_filejournal.cc b/src/ceph/src/test/test_filejournal.cc
deleted file mode 100644 (file)
index 29aab9b..0000000
+++ /dev/null
@@ -1,688 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-#include <gtest/gtest.h>
-#include <stdlib.h>
-#include <limits.h>
-
-#include "common/ceph_argparse.h"
-#include "common/common_init.h"
-#include "global/global_init.h"
-#include "common/config.h"
-#include "common/Finisher.h"
-#include "os/filestore/FileJournal.h"
-#include "include/Context.h"
-#include "common/Mutex.h"
-#include "common/safe_io.h"
-#include "os/filestore/JournalingObjectStore.h"
-
-Finisher *finisher;
-Cond sync_cond;
-char path[200];
-uuid_d fsid;
-struct test_info {
-    bool directio, aio, faio;
-    const char *description;
-} subtests[3] = {
-    { false, false, false, "DIRECTIO OFF  AIO OFF" },
-    { true, false, false, "DIRECTIO ON  AIO OFF" },
-    { true, true, true, "DIRECTIO ON  AIO ON"}
-};
-
-// ----
-Cond cond;
-Mutex wait_lock("lock");
-bool done;
-
-void wait()
-{
-  wait_lock.Lock();
-  while (!done)
-    cond.Wait(wait_lock);
-  wait_lock.Unlock();
-}
-
-// ----
-class C_Sync {
-public:
-  Cond cond;
-  Mutex lock;
-  bool done;
-  C_SafeCond *c;
-
-  C_Sync()
-    : lock("C_Sync::lock"), done(false) {
-    c = new C_SafeCond(&lock, &cond, &done);
-  }
-  ~C_Sync() {
-    lock.Lock();
-    //cout << "wait" << std::endl;
-    while (!done)
-      cond.Wait(lock);
-    //cout << "waited" << std::endl;
-    lock.Unlock();
-  }
-};
-
-unsigned size_mb = 200;
-//Gtest argument prefix
-const char GTEST_PRFIX[] = "--gtest_";
-
-int main(int argc, char **argv) {
-  vector<const char*> args;
-  argv_to_vec(argc, (const char **)argv, args);
-
-  auto cct = global_init(NULL, args, CEPH_ENTITY_TYPE_CLIENT,
-                        CODE_ENVIRONMENT_UTILITY, 0);
-  common_init_finish(g_ceph_context);
-
-  char mb[10];
-  sprintf(mb, "%u", size_mb);
-  g_ceph_context->_conf->set_val("osd_journal_size", mb);
-  g_ceph_context->_conf->apply_changes(NULL);
-
-  finisher = new Finisher(g_ceph_context);
-  
-  path[0] = '\0';
-  if (!args.empty()) {
-    for ( unsigned int i = 0; i < args.size(); ++i) {
-      if (strncmp(args[i], GTEST_PRFIX, sizeof(GTEST_PRFIX) - 1)) {
-       //Non gtest argument, set to path.
-        size_t copy_len = std::min(sizeof(path) - 1, strlen(args[i]));
-        strncpy(path, args[i], copy_len);
-        path[copy_len] = '\0';
-        break;
-      }
-    }
-  }
-  if ( path[0] == '\0') {
-    srand(getpid() + time(0));
-    snprintf(path, sizeof(path), "/var/tmp/ceph_test_filejournal.tmp.%d", rand());
-  }
-  cout << "path " << path << std::endl;
-
-  ::testing::InitGoogleTest(&argc, argv);
-
-  finisher->start();
-
-  int r = RUN_ALL_TESTS();
-  
-  finisher->stop();
-
-  unlink(path);
-  
-  return r;
-}
-
-TEST(TestFileJournal, Create) {
-  g_ceph_context->_conf->set_val("journal_ignore_corruption", "false");
-  g_ceph_context->_conf->set_val("journal_write_header_frequency", "0");
-  g_ceph_context->_conf->apply_changes(NULL);
-
-  for (unsigned i = 0 ; i < 3; ++i) {
-    SCOPED_TRACE(subtests[i].description);
-    fsid.generate_random();
-    FileJournal fj(g_ceph_context, fsid, finisher, &sync_cond, path,
-                 subtests[i].directio, subtests[i].aio, subtests[i].faio);
-    ASSERT_EQ(0, fj.create());
-  }
-}
-
-TEST(TestFileJournal, WriteSmall) {
-  g_ceph_context->_conf->set_val("journal_ignore_corruption", "false");
-  g_ceph_context->_conf->set_val("journal_write_header_frequency", "0");
-  g_ceph_context->_conf->apply_changes(NULL);
-
-  for (unsigned i = 0 ; i < 3; ++i) {
-    SCOPED_TRACE(subtests[i].description);
-    fsid.generate_random();
-    FileJournal fj(g_ceph_context, fsid, finisher, &sync_cond, path,
-                 subtests[i].directio, subtests[i].aio, subtests[i].faio);
-    ASSERT_EQ(0, fj.create());
-    ASSERT_EQ(0, fj.make_writeable());
-
-    vector<ObjectStore::Transaction> tls;
-    bufferlist bl;
-    bl.append("small");
-    int orig_len = fj.prepare_entry(tls, &bl);
-    fj.reserve_throttle_and_backoff(bl.length());
-    fj.submit_entry(1, bl, orig_len, new C_SafeCond(&wait_lock, &cond, &done));
-    wait();
-
-    fj.close();
-  }
-}
-
-TEST(TestFileJournal, WriteBig) {
-  g_ceph_context->_conf->set_val("journal_ignore_corruption", "false");
-  g_ceph_context->_conf->set_val("journal_write_header_frequency", "0");
-  g_ceph_context->_conf->apply_changes(NULL);
-
-  for (unsigned i = 0 ; i < 3; ++i) {
-    SCOPED_TRACE(subtests[i].description);
-    fsid.generate_random();
-    FileJournal fj(g_ceph_context, fsid, finisher, &sync_cond, path,
-                 subtests[i].directio, subtests[i].aio, subtests[i].faio);
-    ASSERT_EQ(0, fj.create());
-    ASSERT_EQ(0, fj.make_writeable());
-
-    bufferlist bl;
-    while (bl.length() < size_mb*1000/2) {
-      char foo[1024*1024];
-      memset(foo, 1, sizeof(foo));
-      bl.append(foo, sizeof(foo));
-    }
-    vector<ObjectStore::Transaction> tls;
-    int orig_len = fj.prepare_entry(tls, &bl);
-    fj.reserve_throttle_and_backoff(bl.length());
-    fj.submit_entry(1, bl, orig_len, new C_SafeCond(&wait_lock, &cond, &done));
-    wait();
-    fj.close();
-  }
-}
-
-TEST(TestFileJournal, WriteMany) {
-  g_ceph_context->_conf->set_val("journal_ignore_corruption", "false");
-  g_ceph_context->_conf->set_val("journal_write_header_frequency", "0");
-  g_ceph_context->_conf->apply_changes(NULL);
-
-  for (unsigned i = 0 ; i < 3; ++i) {
-    SCOPED_TRACE(subtests[i].description);
-    fsid.generate_random();
-    FileJournal fj(g_ceph_context, fsid, finisher, &sync_cond, path,
-                 subtests[i].directio, subtests[i].aio, subtests[i].faio);
-    ASSERT_EQ(0, fj.create());
-    ASSERT_EQ(0, fj.make_writeable());
-
-    C_GatherBuilder gb(g_ceph_context, new C_SafeCond(&wait_lock, &cond, &done));
-
-    vector<ObjectStore::Transaction> tls;
-    bufferlist bl;
-    bl.append("small");
-    uint64_t seq = 1;
-    for (int i=0; i<100; i++) {
-      bl.append("small");
-      int orig_len = fj.prepare_entry(tls, &bl);
-      fj.reserve_throttle_and_backoff(bl.length());
-      fj.submit_entry(seq++, bl, orig_len, gb.new_sub());
-    }
-    gb.activate();
-
-    wait();
-
-    fj.close();
-  }
-}
-
-TEST(TestFileJournal, WriteManyVecs) {
-  g_ceph_context->_conf->set_val("journal_ignore_corruption", "false");
-  g_ceph_context->_conf->set_val("journal_write_header_frequency", "0");
-  g_ceph_context->_conf->apply_changes(NULL);
-
-  for (unsigned i = 0 ; i < 3; ++i) {
-    SCOPED_TRACE(subtests[i].description);
-    fsid.generate_random();
-    FileJournal fj(g_ceph_context, fsid, finisher, &sync_cond, path,
-                 subtests[i].directio, subtests[i].aio, subtests[i].faio);
-    ASSERT_EQ(0, fj.create());
-    ASSERT_EQ(0, fj.make_writeable());
-
-    C_GatherBuilder gb(g_ceph_context, new C_SafeCond(&wait_lock, &cond, &done));
-
-    bufferlist first;
-    first.append("small");
-    vector<ObjectStore::Transaction> tls;
-    int orig_len = fj.prepare_entry(tls, &first);
-    fj.reserve_throttle_and_backoff(first.length());
-    fj.submit_entry(1, first, orig_len, gb.new_sub());
-
-    bufferlist bl;
-    for (int i=0; i<IOV_MAX * 2; i++) {
-      bufferptr bp = buffer::create_page_aligned(4096);
-      memset(bp.c_str(), (char)i, 4096);
-      bl.append(bp);
-    }
-    bufferlist origbl = bl;
-    orig_len = fj.prepare_entry(tls, &bl);
-    fj.reserve_throttle_and_backoff(bl.length());
-    fj.submit_entry(2, bl, orig_len, gb.new_sub());
-    gb.activate();
-    wait();
-
-    fj.close();
-
-    fj.open(1);
-    bufferlist inbl;
-    string v;
-    uint64_t seq = 0;
-    ASSERT_EQ(true, fj.read_entry(inbl, seq));
-    ASSERT_EQ(seq, 2ull);
-    ASSERT_TRUE(inbl.contents_equal(origbl));
-    ASSERT_EQ(0, fj.make_writeable());
-    fj.close();
-
-  }
-}
-
-TEST(TestFileJournal, ReplaySmall) {
-  g_ceph_context->_conf->set_val("journal_ignore_corruption", "false");
-  g_ceph_context->_conf->set_val("journal_write_header_frequency", "0");
-  g_ceph_context->_conf->apply_changes(NULL);
-
-  vector<ObjectStore::Transaction> tls;
-
-  for (unsigned i = 0 ; i < 3; ++i) {
-    SCOPED_TRACE(subtests[i].description);
-    fsid.generate_random();
-    FileJournal fj(g_ceph_context, fsid, finisher, &sync_cond, path,
-                 subtests[i].directio, subtests[i].aio, subtests[i].faio);
-    ASSERT_EQ(0, fj.create());
-    ASSERT_EQ(0, fj.make_writeable());
-
-    C_GatherBuilder gb(g_ceph_context, new C_SafeCond(&wait_lock, &cond, &done));
-
-    bufferlist bl;
-    bl.append("small");
-    int orig_len = fj.prepare_entry(tls, &bl);
-    fj.reserve_throttle_and_backoff(bl.length());
-    fj.submit_entry(1, bl, orig_len, gb.new_sub());
-    bl.append("small");
-    orig_len = fj.prepare_entry(tls, &bl);
-    fj.reserve_throttle_and_backoff(bl.length());
-    fj.submit_entry(2, bl, orig_len, gb.new_sub());
-    bl.append("small");
-    orig_len = fj.prepare_entry(tls, &bl);
-    fj.reserve_throttle_and_backoff(bl.length());
-    fj.submit_entry(3, bl, orig_len, gb.new_sub());
-    gb.activate();
-    wait();
-
-    fj.close();
-
-    fj.open(1);
-
-    bufferlist inbl;
-    string v;
-    uint64_t seq = 0;
-    ASSERT_EQ(true, fj.read_entry(inbl, seq));
-    ASSERT_EQ(seq, 2ull);
-    inbl.copy(0, inbl.length(), v);
-    ASSERT_EQ("small", v);
-    inbl.clear();
-    v.clear();
-
-    ASSERT_EQ(true, fj.read_entry(inbl, seq));
-    ASSERT_EQ(seq, 3ull);
-    inbl.copy(0, inbl.length(), v);
-    ASSERT_EQ("small", v);
-    inbl.clear();
-    v.clear();
-
-    ASSERT_TRUE(!fj.read_entry(inbl, seq));
-
-    ASSERT_EQ(0, fj.make_writeable());
-    fj.close();
-  }
-}
-
-TEST(TestFileJournal, ReplayCorrupt) {
-  g_ceph_context->_conf->set_val("journal_ignore_corruption", "true");
-  g_ceph_context->_conf->set_val("journal_write_header_frequency", "0");
-  g_ceph_context->_conf->apply_changes(NULL);
-
-  vector<ObjectStore::Transaction> tls;
-  for (unsigned i = 0 ; i < 3; ++i) {
-    SCOPED_TRACE(subtests[i].description);
-    fsid.generate_random();
-    FileJournal fj(g_ceph_context, fsid, finisher, &sync_cond, path,
-                 subtests[i].directio, subtests[i].aio, subtests[i].faio);
-    ASSERT_EQ(0, fj.create());
-    ASSERT_EQ(0, fj.make_writeable());
-
-    C_GatherBuilder gb(g_ceph_context, new C_SafeCond(&wait_lock, &cond, &done));
-
-    const char *needle =    "i am a needle";
-    const char *newneedle = "in a haystack";
-    bufferlist bl;
-    bl.append(needle);
-    int orig_len = fj.prepare_entry(tls, &bl);
-    fj.reserve_throttle_and_backoff(bl.length());
-    fj.submit_entry(1, bl, orig_len, gb.new_sub());
-    bl.append(needle);
-    orig_len = fj.prepare_entry(tls, &bl);
-    fj.reserve_throttle_and_backoff(bl.length());
-    fj.submit_entry(2, bl, orig_len, gb.new_sub());
-    bl.append(needle);
-    orig_len = fj.prepare_entry(tls, &bl);
-    fj.reserve_throttle_and_backoff(bl.length());
-    fj.submit_entry(3, bl, orig_len, gb.new_sub());
-    bl.append(needle);
-    orig_len = fj.prepare_entry(tls, &bl);
-    fj.reserve_throttle_and_backoff(bl.length());
-    fj.submit_entry(4, bl, orig_len, gb.new_sub());
-    gb.activate();
-    wait();
-
-    fj.close();
-
-    cout << "corrupting journal" << std::endl;
-    char buf[1024*128];
-    int fd = open(path, O_RDONLY);
-    ASSERT_GE(fd, 0);
-    int r = safe_read_exact(fd, buf, sizeof(buf));
-    ASSERT_EQ(0, r);
-    int n = 0;
-    for (unsigned o=0; o < sizeof(buf) - strlen(needle); o++) {
-      if (memcmp(buf+o, needle, strlen(needle)) == 0) {
-        if (n >= 2) {
-         cout << "replacing at offset " << o << std::endl;
-         memcpy(buf+o, newneedle, strlen(newneedle));
-        } else {
-         cout << "leaving at offset " << o << std::endl;
-        }
-        n++;
-      }
-    }
-    ASSERT_EQ(n, 4);
-    close(fd);
-    fd = open(path, O_WRONLY);
-    ASSERT_GE(fd, 0);
-    r = safe_write(fd, buf, sizeof(buf));
-    ASSERT_EQ(r, 0);
-    close(fd);
-
-    fj.open(1);
-
-    bufferlist inbl;
-    string v;
-    uint64_t seq = 0;
-    ASSERT_EQ(true, fj.read_entry(inbl, seq));
-    ASSERT_EQ(seq, 2ull);
-    inbl.copy(0, inbl.length(), v);
-    ASSERT_EQ(needle, v);
-    inbl.clear();
-    v.clear();
-    bool corrupt;
-    ASSERT_FALSE(fj.read_entry(inbl, seq, &corrupt));
-    ASSERT_TRUE(corrupt);
-
-    ASSERT_EQ(0, fj.make_writeable());
-    fj.close();
-  }
-}
-
-TEST(TestFileJournal, WriteTrim) {
-  g_ceph_context->_conf->set_val("journal_ignore_corruption", "false");
-  g_ceph_context->_conf->set_val("journal_write_header_frequency", "0");
-  g_ceph_context->_conf->apply_changes(NULL);
-
-  for (unsigned i = 0 ; i < 3; ++i) {
-    SCOPED_TRACE(subtests[i].description);
-    fsid.generate_random();
-    FileJournal fj(g_ceph_context, fsid, finisher, &sync_cond, path,
-                 subtests[i].directio, subtests[i].aio, subtests[i].faio);
-    ASSERT_EQ(0, fj.create());
-    ASSERT_EQ(0, fj.make_writeable());
-
-    list<C_Sync*> ls;
-
-    bufferlist bl;
-    char foo[1024*1024];
-    memset(foo, 1, sizeof(foo));
-
-    uint64_t seq = 1, committed = 0;
-    vector<ObjectStore::Transaction> tls;
-
-    for (unsigned i=0; i<size_mb*2; i++) {
-      bl.clear();
-      bl.push_back(buffer::copy(foo, sizeof(foo)));
-      bl.zero();
-      ls.push_back(new C_Sync);
-      int orig_len = fj.prepare_entry(tls, &bl);
-      fj.reserve_throttle_and_backoff(bl.length());
-      fj.submit_entry(seq++, bl, orig_len, ls.back()->c);
-
-      while (ls.size() > size_mb/2) {
-        delete ls.front();
-        ls.pop_front();
-        committed++;
-        fj.committed_thru(committed);
-      }
-    }
-
-    while (ls.size()) {
-      delete ls.front();
-      ls.pop_front();
-      fj.committed_thru(++committed);
-    }
-
-    ASSERT_TRUE(fj.journalq_empty());
-
-    fj.close();
-  }
-}
-
-TEST(TestFileJournal, WriteTrimSmall) {
-  g_ceph_context->_conf->set_val("journal_ignore_corruption", "false");
-  g_ceph_context->_conf->set_val("journal_write_header_frequency", "0");
-  g_ceph_context->_conf->apply_changes(NULL);
-  vector<ObjectStore::Transaction> tls;
-
-  for (unsigned i = 0 ; i < 3; ++i) {
-    SCOPED_TRACE(subtests[i].description);
-    fsid.generate_random();
-    FileJournal fj(g_ceph_context, fsid, finisher, &sync_cond, path,
-                 subtests[i].directio, subtests[i].aio, subtests[i].faio);
-    ASSERT_EQ(0, fj.create());
-    ASSERT_EQ(0, fj.make_writeable());
-
-    list<C_Sync*> ls;
-
-    bufferlist bl;
-    char foo[1024*1024];
-    memset(foo, 1, sizeof(foo));
-
-    uint64_t seq = 1, committed = 0;
-
-    for (unsigned i=0; i<size_mb*2; i++) {
-      bl.clear();
-      for (int k=0; k<128; k++)
-        bl.push_back(buffer::copy(foo, sizeof(foo) / 128));
-      bl.zero();
-      ls.push_back(new C_Sync);
-      int orig_len = fj.prepare_entry(tls, &bl);
-      fj.reserve_throttle_and_backoff(bl.length());
-      fj.submit_entry(seq++, bl, orig_len, ls.back()->c);
-
-      while (ls.size() > size_mb/2) {
-        delete ls.front();
-        ls.pop_front();
-        committed++;
-        fj.committed_thru(committed);
-      }
-    }
-
-    while (ls.size()) {
-      delete ls.front();
-      ls.pop_front();
-      fj.committed_thru(committed);
-    }
-
-    fj.close();
-  }
-}
-
-TEST(TestFileJournal, ReplayDetectCorruptFooterMagic) {
-  g_ceph_context->_conf->set_val("journal_ignore_corruption", "true");
-  g_ceph_context->_conf->set_val("journal_write_header_frequency", "1");
-  g_ceph_context->_conf->apply_changes(NULL);
-
-  vector<ObjectStore::Transaction> tls;
-  for (unsigned i = 0 ; i < 3; ++i) {
-    SCOPED_TRACE(subtests[i].description);
-    fsid.generate_random();
-    FileJournal fj(g_ceph_context, fsid, finisher, &sync_cond, path,
-                 subtests[i].directio, subtests[i].aio, subtests[i].faio);
-    ASSERT_EQ(0, fj.create());
-    ASSERT_EQ(0, fj.make_writeable());
-
-    C_GatherBuilder gb(g_ceph_context, new C_SafeCond(&wait_lock, &cond, &done));
-
-    const char *needle =    "i am a needle";
-    for (unsigned i = 1; i <= 4; ++i) {
-      bufferlist bl;
-      bl.append(needle);
-      int orig_len = fj.prepare_entry(tls, &bl);
-      fj.reserve_throttle_and_backoff(bl.length());
-      fj.submit_entry(i, bl, orig_len, gb.new_sub());
-    }
-    gb.activate();
-    wait();
-
-    bufferlist bl;
-    bl.append("needle");
-    int orig_len = fj.prepare_entry(tls, &bl);
-    fj.reserve_throttle_and_backoff(bl.length());
-    fj.submit_entry(5, bl, orig_len, new C_SafeCond(&wait_lock, &cond, &done));
-    wait();
-
-    fj.close();
-    int fd = open(path, O_WRONLY);
-
-    cout << "corrupting journal" << std::endl;
-    fj.open(0);
-    fj.corrupt_footer_magic(fd, 2);
-
-    uint64_t seq = 0;
-    bl.clear();
-    bool corrupt = false;
-    bool result = fj.read_entry(bl, seq, &corrupt);
-    ASSERT_TRUE(result);
-    ASSERT_EQ(seq, 1UL);
-    ASSERT_FALSE(corrupt);
-
-    result = fj.read_entry(bl, seq, &corrupt);
-    ASSERT_FALSE(result);
-    ASSERT_TRUE(corrupt);
-
-    ASSERT_EQ(0, fj.make_writeable());
-    fj.close();
-    ::close(fd);
-  }
-}
-
-TEST(TestFileJournal, ReplayDetectCorruptPayload) {
-  g_ceph_context->_conf->set_val("journal_ignore_corruption", "true");
-  g_ceph_context->_conf->set_val("journal_write_header_frequency", "1");
-  g_ceph_context->_conf->apply_changes(NULL);
-
-  vector<ObjectStore::Transaction> tls;
-  for (unsigned i = 0 ; i < 3; ++i) {
-    SCOPED_TRACE(subtests[i].description);
-    fsid.generate_random();
-    FileJournal fj(g_ceph_context, fsid, finisher, &sync_cond, path,
-                 subtests[i].directio, subtests[i].aio, subtests[i].faio);
-    ASSERT_EQ(0, fj.create());
-    ASSERT_EQ(0, fj.make_writeable());
-
-    C_GatherBuilder gb(g_ceph_context, new C_SafeCond(&wait_lock, &cond, &done));
-
-    const char *needle =    "i am a needle";
-    for (unsigned i = 1; i <= 4; ++i) {
-      bufferlist bl;
-      bl.append(needle);
-      int orig_len = fj.prepare_entry(tls, &bl);
-      fj.reserve_throttle_and_backoff(bl.length());
-      fj.submit_entry(i, bl, orig_len, gb.new_sub());
-    }
-    gb.activate();
-    wait();
-
-    bufferlist bl;
-    bl.append("needle");
-    int orig_len = fj.prepare_entry(tls, &bl);
-    fj.reserve_throttle_and_backoff(bl.length());
-    fj.submit_entry(5, bl, orig_len, new C_SafeCond(&wait_lock, &cond, &done));
-    wait();
-
-    fj.close();
-    int fd = open(path, O_WRONLY);
-
-    cout << "corrupting journal" << std::endl;
-    fj.open(0);
-    fj.corrupt_payload(fd, 2);
-
-    uint64_t seq = 0;
-    bl.clear();
-    bool corrupt = false;
-    bool result = fj.read_entry(bl, seq, &corrupt);
-    ASSERT_TRUE(result);
-    ASSERT_EQ(seq, 1UL);
-    ASSERT_FALSE(corrupt);
-
-    result = fj.read_entry(bl, seq, &corrupt);
-    ASSERT_FALSE(result);
-    ASSERT_TRUE(corrupt);
-
-    ASSERT_EQ(0, fj.make_writeable());
-    fj.close();
-    ::close(fd);
-  }
-}
-
-TEST(TestFileJournal, ReplayDetectCorruptHeader) {
-  g_ceph_context->_conf->set_val("journal_ignore_corruption", "true");
-  g_ceph_context->_conf->set_val("journal_write_header_frequency", "1");
-  g_ceph_context->_conf->apply_changes(NULL);
-
-  vector<ObjectStore::Transaction> tls;
-  for (unsigned i = 0 ; i < 3; ++i) {
-    SCOPED_TRACE(subtests[i].description);
-    fsid.generate_random();
-    FileJournal fj(g_ceph_context, fsid, finisher, &sync_cond, path,
-                 subtests[i].directio, subtests[i].aio, subtests[i].faio);
-    ASSERT_EQ(0, fj.create());
-    ASSERT_EQ(0, fj.make_writeable());
-
-    C_GatherBuilder gb(g_ceph_context, new C_SafeCond(&wait_lock, &cond, &done));
-
-    const char *needle =    "i am a needle";
-    for (unsigned i = 1; i <= 4; ++i) {
-      bufferlist bl;
-      bl.append(needle);
-      int orig_len = fj.prepare_entry(tls, &bl);
-      fj.reserve_throttle_and_backoff(bl.length());
-      fj.submit_entry(i, bl, orig_len, gb.new_sub());
-    }
-    gb.activate();
-    wait();
-
-    bufferlist bl;
-    bl.append("needle");
-    int orig_len = fj.prepare_entry(tls, &bl);
-    fj.reserve_throttle_and_backoff(bl.length());
-    fj.submit_entry(5, bl, orig_len, new C_SafeCond(&wait_lock, &cond, &done));
-    wait();
-
-    fj.close();
-    int fd = open(path, O_WRONLY);
-
-    cout << "corrupting journal" << std::endl;
-    fj.open(0);
-    fj.corrupt_header_magic(fd, 2);
-
-    uint64_t seq = 0;
-    bl.clear();
-    bool corrupt = false;
-    bool result = fj.read_entry(bl, seq, &corrupt);
-    ASSERT_TRUE(result);
-    ASSERT_EQ(seq, 1UL);
-    ASSERT_FALSE(corrupt);
-
-    result = fj.read_entry(bl, seq, &corrupt);
-    ASSERT_FALSE(result);
-    ASSERT_TRUE(corrupt);
-
-    ASSERT_EQ(0, fj.make_writeable());
-    fj.close();
-    ::close(fd);
-  }
-}