static int mdd_changelog_llog_init(const struct lu_env *env,
struct mdd_device *mdd)
{
struct obd_device *obd = mdd2obd_dev(mdd);
struct llog_ctxt *ctxt = NULL, *uctxt = NULL;
int rc;
ENTRY;
/* LU-2844 mdd setup failure should not cause umount oops */
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_CHANGELOG_INIT))
RETURN(-EIO);
OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt);
obd->obd_lvfs_ctxt.dt = mdd->mdd_bottom;
rc = llog_setup(env, obd, &obd->obd_olg, LLOG_CHANGELOG_ORIG_CTXT,
obd, &changelog_orig_logops);
if (rc) {
CERROR("%s: changelog llog setup failed: rc = %d\n",
obd->obd_name, rc);
RETURN(rc);
}
ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
LASSERT(ctxt);
rc = llog_open_create(env, ctxt, &ctxt->loc_handle, NULL,
CHANGELOG_CATALOG);
if (rc)
GOTO(out_cleanup, rc);
rc = llog_cat_init_and_process(env, ctxt->loc_handle);
if (rc)
GOTO(out_close, rc);
rc = llog_cat_reverse_process(env, ctxt->loc_handle,
changelog_init_cb, mdd);
if (rc < 0) {
CERROR("%s: changelog init failed: rc = %d\n", obd->obd_name,
rc);
GOTO(out_close, rc);
}
CDEBUG(D_IOCTL, "changelog starting index="LPU64"\n",
mdd->mdd_cl.mc_index);
/* setup user changelog */
rc = llog_setup(env, obd, &obd->obd_olg, LLOG_CHANGELOG_USER_ORIG_CTXT,
obd, &changelog_orig_logops);
if (rc) {
CERROR("%s: changelog users llog setup failed: rc = %d\n",
obd->obd_name, rc);
GOTO(out_close, rc);
}
uctxt = llog_get_context(obd, LLOG_CHANGELOG_USER_ORIG_CTXT);
LASSERT(ctxt);
rc = llog_open_create(env, uctxt, &uctxt->loc_handle, NULL,
CHANGELOG_USERS);
if (rc)
GOTO(out_ucleanup, rc);
uctxt->loc_handle->lgh_logops->lop_add = llog_cat_add_rec;
uctxt->loc_handle->lgh_logops->lop_declare_add = llog_cat_declare_add_rec;
rc = llog_cat_init_and_process(env, uctxt->loc_handle);
if (rc)
GOTO(out_uclose, rc);
rc = llog_cat_reverse_process(env, uctxt->loc_handle,
changelog_user_init_cb, mdd);
if (rc < 0) {
CERROR("%s: changelog user init failed: rc = %d\n",
obd->obd_name, rc);
GOTO(out_uclose, rc);
}
/* If we have registered users, assume we want changelogs on */
if (mdd->mdd_cl.mc_lastuser > 0) {
rc = mdd_changelog_on(env, mdd, 1);
if (rc < 0)
GOTO(out_uclose, rc);
}
llog_ctxt_put(ctxt);
llog_ctxt_put(uctxt);
RETURN(0);
out_uclose:
llog_cat_close(env, uctxt->loc_handle);
out_ucleanup:
llog_cleanup(env, uctxt);
out_close:
llog_cat_close(env, ctxt->loc_handle);
out_cleanup:
llog_cleanup(env, ctxt);
return rc;
}
/* Test log and catalogue processing */
static int llog_test_5(const struct lu_env *env, struct obd_device *obd)
{
struct llog_handle *llh = NULL;
char name[10];
int rc, rc2;
struct llog_mini_rec lmr;
struct llog_ctxt *ctxt;
ctxt = llog_get_context(obd, LLOG_TEST_ORIG_CTXT);
LASSERT(ctxt);
lmr.lmr_hdr.lrh_len = lmr.lmr_tail.lrt_len = LLOG_MIN_REC_SIZE;
lmr.lmr_hdr.lrh_type = 0xf00f00;
CWARN("5a: re-open catalog by id\n");
rc = llog_open(env, ctxt, &llh, &cat_logid, NULL, LLOG_OPEN_EXISTS);
if (rc) {
CERROR("5a: llog_create with logid failed: %d\n", rc);
GOTO(out_put, rc);
}
rc = llog_init_handle(env, llh, LLOG_F_IS_CAT, &uuid);
if (rc) {
CERROR("5a: can't init llog handle: %d\n", rc);
GOTO(out, rc);
}
CWARN("5b: print the catalog entries.. we expect 2\n");
cat_counter = 0;
rc = llog_process(env, llh, cat_print_cb, "test 5", NULL);
if (rc) {
CERROR("5b: process with cat_print_cb failed: %d\n", rc);
GOTO(out, rc);
}
if (cat_counter != 2) {
CERROR("5b: %d entries in catalog\n", cat_counter);
GOTO(out, rc = -EINVAL);
}
CWARN("5c: Cancel %d records, see one log zapped\n", LLOG_TEST_RECNUM);
cancel_count = 0;
rc = llog_cat_process(env, llh, llog_cancel_rec_cb, "foobar", 0, 0);
if (rc != -LLOG_EEMPTY) {
CERROR("5c: process with cat_cancel_cb failed: %d\n", rc);
GOTO(out, rc);
}
CWARN("5c: print the catalog entries.. we expect 1\n");
cat_counter = 0;
rc = llog_process(env, llh, cat_print_cb, "test 5", NULL);
if (rc) {
CERROR("5c: process with cat_print_cb failed: %d\n", rc);
GOTO(out, rc);
}
if (cat_counter != 1) {
CERROR("5c: %d entries in catalog\n", cat_counter);
GOTO(out, rc = -EINVAL);
}
CWARN("5d: add 1 record to the log with many canceled empty pages\n");
rc = llog_cat_add(env, llh, &lmr.lmr_hdr, NULL, NULL);
if (rc) {
CERROR("5d: add record to the log with many canceled empty "
"pages failed\n");
GOTO(out, rc);
}
CWARN("5e: print plain log entries.. expect 6\n");
plain_counter = 0;
rc = llog_cat_process(env, llh, plain_print_cb, "foobar", 0, 0);
if (rc) {
CERROR("5e: process with plain_print_cb failed: %d\n", rc);
GOTO(out, rc);
}
if (plain_counter != 6) {
CERROR("5e: found %d records\n", plain_counter);
GOTO(out, rc = -EINVAL);
}
CWARN("5f: print plain log entries reversely.. expect 6\n");
plain_counter = 0;
rc = llog_cat_reverse_process(env, llh, plain_print_cb, "foobar");
if (rc) {
CERROR("5f: reversely process with plain_print_cb failed:"
"%d\n", rc);
GOTO(out, rc);
}
if (plain_counter != 6) {
CERROR("5f: found %d records\n", plain_counter);
GOTO(out, rc = -EINVAL);
}
out:
CWARN("5g: close re-opened catalog\n");
rc2 = llog_cat_close(env, llh);
if (rc2) {
CERROR("5g: close log %s failed: %d\n", name, rc2);
if (rc == 0)
rc = rc2;
}
out_put:
llog_ctxt_put(ctxt);
return rc;
}
/* Test log and catalogue processing */
static int llog_test_5(struct obd_device *obd)
{
struct llog_handle *llh = NULL;
char name[10];
int rc;
struct llog_mini_rec lmr;
struct llog_ctxt *ctxt = llog_get_context(obd, LLOG_TEST_ORIG_CTXT);
ENTRY;
lmr.lmr_hdr.lrh_len = lmr.lmr_tail.lrt_len = LLOG_MIN_REC_SIZE;
lmr.lmr_hdr.lrh_type = 0xf00f00;
CWARN("5a: re-open catalog by id\n");
rc = llog_create(ctxt, &llh, &cat_logid, NULL);
if (rc) {
CERROR("5a: llog_create with logid failed: %d\n", rc);
GOTO(out, rc);
}
llog_init_handle(llh, LLOG_F_IS_CAT, &uuid);
CWARN("5b: print the catalog entries.. we expect 2\n");
rc = llog_process(llh, cat_print_cb, "test 5", NULL);
if (rc) {
CERROR("5b: process with cat_print_cb failed: %d\n", rc);
GOTO(out, rc);
}
CWARN("5c: Cancel 40000 records, see one log zapped\n");
rc = llog_cat_process(llh, llog_cancel_rec_cb, "foobar", 0, 0);
if (rc != -4711) {
CERROR("5c: process with cat_cancel_cb failed: %d\n", rc);
GOTO(out, rc);
}
CWARN("5d: add 1 record to the log with many canceled empty pages\n");
rc = llog_cat_add_rec(llh, &lmr.lmr_hdr, NULL, NULL);
if (rc) {
CERROR("5d: add record to the log with many canceled empty\
pages failed\n");
GOTO(out, rc);
}
CWARN("5b: print the catalog entries.. we expect 1\n");
rc = llog_process(llh, cat_print_cb, "test 5", NULL);
if (rc) {
CERROR("5b: process with cat_print_cb failed: %d\n", rc);
GOTO(out, rc);
}
CWARN("5e: print plain log entries.. expect 6\n");
rc = llog_cat_process(llh, plain_print_cb, "foobar", 0, 0);
if (rc) {
CERROR("5e: process with plain_print_cb failed: %d\n", rc);
GOTO(out, rc);
}
CWARN("5f: print plain log entries reversely.. expect 6\n");
rc = llog_cat_reverse_process(llh, plain_print_cb, "foobar");
if (rc) {
CERROR("5f: reversely process with plain_print_cb failed: %d\n", rc);
GOTO(out, rc);
}
out:
CWARN("5: close re-opened catalog\n");
if (llh)
rc = llog_cat_put(llh);
if (rc)
CERROR("1b: close log %s failed: %d\n", name, rc);
llog_ctxt_put(ctxt);
RETURN(rc);
}
