/* Test named-log create/open, close */
static int llog_test_1(struct obd_device *obd, char *name)
{
struct llog_handle *llh;
struct llog_ctxt *ctxt = llog_get_context(obd, LLOG_TEST_ORIG_CTXT);
int rc;
int rc2;
ENTRY;
CWARN("1a: create a log with name: %s\n", name);
LASSERT(ctxt);
rc = llog_create(ctxt, &llh, NULL, name);
if (rc) {
CERROR("1a: llog_create with name %s failed: %d\n", name, rc);
llog_ctxt_put(ctxt);
RETURN(rc);
}
llog_init_handle(llh, LLOG_F_IS_PLAIN, &uuid);
if ((rc = verify_handle("1", llh, 1)))
GOTO(out, rc);
out:
CWARN("1b: close newly-created log\n");
rc2 = llog_close(llh);
llog_ctxt_put(ctxt);
if (rc2) {
CERROR("1b: close log %s failed: %d\n", name, rc2);
if (rc == 0)
rc = rc2;
}
RETURN(rc);
}
static int mdd_changelog_users_seq_show(struct seq_file *m, void *data)
{
struct lu_env env;
struct mdd_device *mdd = m->private;
struct llog_ctxt *ctxt;
__u64 cur;
int rc;
ctxt = llog_get_context(mdd2obd_dev(mdd),
LLOG_CHANGELOG_USER_ORIG_CTXT);
if (ctxt == NULL)
return -ENXIO;
LASSERT(ctxt->loc_handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT);
rc = lu_env_init(&env, LCT_LOCAL);
if (rc) {
llog_ctxt_put(ctxt);
return rc;
}
spin_lock(&mdd->mdd_cl.mc_lock);
cur = mdd->mdd_cl.mc_index;
spin_unlock(&mdd->mdd_cl.mc_lock);
seq_printf(m, "current index: %llu\n", cur);
seq_printf(m, "%-5s %s\n", "ID", "index");
llog_cat_process(&env, ctxt->loc_handle, lprocfs_changelog_users_cb,
m, 0, 0);
lu_env_fini(&env);
llog_ctxt_put(ctxt);
return 0;
}
/* Add log records for each OSC that this object is striped over, and return
* cookies for each one. We _would_ have nice abstraction here, except that
* we need to keep cookies in stripe order, even if some are NULL, so that
* the right cookies are passed back to the right OSTs at the client side.
* Unset cookies should be all-zero (which will never occur naturally). */
static int lov_llog_origin_add(const struct lu_env *env,
struct llog_ctxt *ctxt,
struct llog_rec_hdr *rec,
struct lov_stripe_md *lsm,
struct llog_cookie *logcookies, int numcookies)
{
struct obd_device *obd = ctxt->loc_obd;
struct lov_obd *lov = &obd->u.lov;
int i, rc = 0, cookies = 0;
ENTRY;
LASSERTF(logcookies && numcookies >= lsm->lsm_stripe_count,
"logcookies %p, numcookies %d lsm->lsm_stripe_count %d \n",
logcookies, numcookies, lsm->lsm_stripe_count);
for (i = 0; i < lsm->lsm_stripe_count; i++) {
struct lov_oinfo *loi = lsm->lsm_oinfo[i];
struct obd_device *child =
lov->lov_tgts[loi->loi_ost_idx]->ltd_exp->exp_obd;
struct llog_ctxt *cctxt = llog_get_context(child, ctxt->loc_idx);
/* fill mds unlink/setattr log record */
switch (rec->lrh_type) {
case MDS_UNLINK_REC: {
struct llog_unlink_rec *lur = (struct llog_unlink_rec *)rec;
lur->lur_oid = ostid_id(&loi->loi_oi);
lur->lur_oseq = (__u32)ostid_seq(&loi->loi_oi);
break;
}
case MDS_SETATTR64_REC: {
struct llog_setattr64_rec *lsr = (struct llog_setattr64_rec *)rec;
lsr->lsr_oi = loi->loi_oi;
break;
}
default:
break;
}
/* inject error in llog_obd_add() below */
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_FAIL_LOV_LOG_ADD)) {
llog_ctxt_put(cctxt);
cctxt = NULL;
}
rc = llog_obd_add(env, cctxt, rec, NULL, logcookies + cookies,
numcookies - cookies);
llog_ctxt_put(cctxt);
if (rc < 0) {
CERROR("Can't add llog (rc = %d) for stripe %d\n",
rc, cookies);
memset(logcookies + cookies, 0,
sizeof(struct llog_cookie));
rc = 1; /* skip this cookie */
}
/* Note that rc is always 1 if llog_obd_add was successful */
cookies += rc;
}
RETURN(cookies);
}
int llog_origin_handle_next_block(struct ptlrpc_request *req)
{
struct llog_handle *loghandle;
struct llogd_body *body;
struct llogd_body *repbody;
struct llog_ctxt *ctxt;
__u32 flags;
void *ptr;
int rc;
ENTRY;
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (body == NULL)
RETURN(err_serious(-EFAULT));
req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_SERVER,
LLOG_MIN_CHUNK_SIZE);
rc = req_capsule_server_pack(&req->rq_pill);
if (rc)
RETURN(err_serious(-ENOMEM));
if (body->lgd_ctxt_idx >= LLOG_MAX_CTXTS) {
CDEBUG(D_WARNING, "%s: bad ctxt ID: idx=%d\n",
req->rq_export->exp_obd->obd_name, body->lgd_ctxt_idx);
RETURN(-EPROTO);
}
ctxt = llog_get_context(req->rq_export->exp_obd, body->lgd_ctxt_idx);
if (ctxt == NULL)
RETURN(-ENODEV);
rc = llog_open(req->rq_svc_thread->t_env, ctxt, &loghandle,
&body->lgd_logid, NULL, LLOG_OPEN_EXISTS);
if (rc)
GOTO(out_ctxt, rc);
flags = body->lgd_llh_flags;
rc = llog_init_handle(req->rq_svc_thread->t_env, loghandle, flags,
NULL);
if (rc)
GOTO(out_close, rc);
repbody = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
*repbody = *body;
ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA);
rc = llog_next_block(req->rq_svc_thread->t_env, loghandle,
&repbody->lgd_saved_index, repbody->lgd_index,
&repbody->lgd_cur_offset, ptr,
LLOG_MIN_CHUNK_SIZE);
if (rc)
GOTO(out_close, rc);
EXIT;
out_close:
llog_origin_close(req->rq_svc_thread->t_env, loghandle);
out_ctxt:
llog_ctxt_put(ctxt);
return rc;
}
static int mds_llog_add_unlink(struct obd_device *obd,
struct lov_stripe_md *lsm, obd_count count,
struct llog_cookie *logcookie, int cookies)
{
struct llog_unlink_rec *lur;
struct llog_ctxt *ctxt;
int rc;
if (cookies < lsm->lsm_stripe_count)
RETURN(rc = -EFBIG);
/* first prepare unlink log record */
OBD_ALLOC_PTR(lur);
if (!lur)
RETURN(rc = -ENOMEM);
lur->lur_hdr.lrh_len = lur->lur_tail.lrt_len = sizeof(*lur);
lur->lur_hdr.lrh_type = MDS_UNLINK_REC;
lur->lur_count = count;
ctxt = llog_get_context(obd, LLOG_MDS_OST_ORIG_CTXT);
rc = llog_add(ctxt, &lur->lur_hdr, lsm, logcookie, cookies);
llog_ctxt_put(ctxt);
OBD_FREE_PTR(lur);
RETURN(rc);
}
int llog_origin_handle_destroy(struct ptlrpc_request *req)
{
struct llogd_body *body;
struct llog_logid *logid = NULL;
struct llog_ctxt *ctxt;
int rc;
ENTRY;
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (body == NULL)
RETURN(err_serious(-EFAULT));
rc = req_capsule_server_pack(&req->rq_pill);
if (rc < 0)
RETURN(err_serious(-ENOMEM));
if (ostid_id(&body->lgd_logid.lgl_oi) > 0)
logid = &body->lgd_logid;
if (!(body->lgd_llh_flags & LLOG_F_IS_PLAIN))
CERROR("%s: wrong llog flags %x\n",
req->rq_export->exp_obd->obd_name, body->lgd_llh_flags);
ctxt = llog_get_context(req->rq_export->exp_obd, body->lgd_ctxt_idx);
if (ctxt == NULL)
RETURN(-ENODEV);
rc = llog_erase(req->rq_svc_thread->t_env, ctxt, logid, NULL);
llog_ctxt_put(ctxt);
RETURN(rc);
}
static int llog_osd_setup(const struct lu_env *env, struct obd_device *obd,
struct obd_llog_group *olg, int ctxt_idx,
struct obd_device *disk_obd)
{
struct local_oid_storage *los;
struct llog_thread_info *lgi = llog_info(env);
struct llog_ctxt *ctxt;
int rc = 0;
ENTRY;
LASSERT(obd);
LASSERT(olg->olg_ctxts[ctxt_idx]);
ctxt = llog_ctxt_get(olg->olg_ctxts[ctxt_idx]);
LASSERT(ctxt);
/* initialize data allowing to generate new fids,
* literally we need a sequece */
lgi->lgi_fid.f_seq = FID_SEQ_LLOG;
lgi->lgi_fid.f_oid = 1;
lgi->lgi_fid.f_ver = 0;
rc = local_oid_storage_init(env, disk_obd->obd_lvfs_ctxt.dt,
&lgi->lgi_fid, &los);
llog_ctxt_put(ctxt);
return rc;
}
static int lov_llog_origin_connect(struct llog_ctxt *ctxt,
struct llog_logid *logid,
struct llog_gen *gen,
struct obd_uuid *uuid)
{
struct obd_device *obd = ctxt->loc_obd;
struct lov_obd *lov = &obd->u.lov;
int i, rc = 0, err = 0;
ENTRY;
obd_getref(obd);
for (i = 0; i < lov->desc.ld_tgt_count; i++) {
struct obd_device *child;
struct llog_ctxt *cctxt;
if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_active)
continue;
if (uuid && !obd_uuid_equals(uuid, &lov->lov_tgts[i]->ltd_uuid))
continue;
CDEBUG(D_CONFIG, "connect %d/%d\n", i, lov->desc.ld_tgt_count);
child = lov->lov_tgts[i]->ltd_exp->exp_obd;
cctxt = llog_get_context(child, ctxt->loc_idx);
rc = llog_connect(cctxt, logid, gen, uuid);
llog_ctxt_put(cctxt);
if (rc) {
CERROR("error osc_llog_connect tgt %d (%d)\n", i, rc);
if (!err)
err = rc;
}
}
obd_putref(obd);
RETURN(err);
}
int llog_cleanup(const struct lu_env *env, struct llog_ctxt *ctxt)
{
struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
struct obd_llog_group *olg;
int rc, idx;
LASSERT(ctxt != NULL);
LASSERT(ctxt != LP_POISON);
olg = ctxt->loc_olg;
LASSERT(olg != NULL);
LASSERT(olg != LP_POISON);
idx = ctxt->loc_idx;
/*
* Banlance the ctxt get when calling llog_cleanup()
*/
LASSERT(atomic_read(&ctxt->loc_refcount) < LI_POISON);
LASSERT(atomic_read(&ctxt->loc_refcount) > 1);
llog_ctxt_put(ctxt);
/*
* Try to free the ctxt.
*/
rc = __llog_ctxt_put(env, ctxt);
if (rc)
CERROR("Error %d while cleaning up ctxt %p\n",
rc, ctxt);
l_wait_event(olg->olg_waitq,
llog_group_ctxt_null(olg, idx), &lwi);
return rc;
}
static int mdd_changelog_user_purge(const struct lu_env *env,
struct mdd_device *mdd, int id,
long long endrec)
{
struct mdd_changelog_user_data data;
struct llog_ctxt *ctxt;
int rc;
ENTRY;
CDEBUG(D_IOCTL, "Purge request: id=%d, endrec=%lld\n", id, endrec);
data.mcud_id = id;
data.mcud_minid = 0;
data.mcud_minrec = 0;
data.mcud_usercount = 0;
data.mcud_endrec = endrec;
spin_lock(&mdd->mdd_cl.mc_lock);
endrec = mdd->mdd_cl.mc_index;
spin_unlock(&mdd->mdd_cl.mc_lock);
if ((data.mcud_endrec == 0) ||
((data.mcud_endrec > endrec) &&
(data.mcud_endrec != MCUD_UNREGISTER)))
data.mcud_endrec = endrec;
ctxt = llog_get_context(mdd2obd_dev(mdd),
LLOG_CHANGELOG_USER_ORIG_CTXT);
if (ctxt == NULL)
return -ENXIO;
LASSERT(ctxt->loc_handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT);
rc = llog_cat_process(env, ctxt->loc_handle,
mdd_changelog_user_purge_cb, (void *)&data,
0, 0);
if ((rc >= 0) && (data.mcud_minrec > 0)) {
CDEBUG(D_IOCTL, "Purging changelog entries up to "LPD64
", referenced by "CHANGELOG_USER_PREFIX"%d\n",
data.mcud_minrec, data.mcud_minid);
rc = mdd_changelog_llog_cancel(env, mdd, data.mcud_minrec);
} else {
CWARN("Could not determine changelog records to purge; rc=%d\n",
rc);
}
llog_ctxt_put(ctxt);
if (!data.mcud_found) {
CWARN("No entry for user %d. Last changelog reference is "
LPD64" by changelog user %d\n", data.mcud_id,
data.mcud_minrec, data.mcud_minid);
rc = -ENOENT;
}
if (!rc && data.mcud_usercount == 0)
/* No more users; turn changelogs off */
rc = mdd_changelog_on(env, mdd, 0);
RETURN (rc);
}
int llog_origin_handle_create(struct ptlrpc_request *req)
{
struct obd_export *exp = req->rq_export;
struct obd_device *obd = exp->exp_obd;
struct obd_device *disk_obd;
struct llog_handle *loghandle;
struct llogd_body *body;
struct lvfs_run_ctxt saved;
struct llog_logid *logid = NULL;
struct llog_ctxt *ctxt;
char *name = NULL;
int rc, rc2;
ENTRY;
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (body == NULL)
RETURN(-EFAULT);
if (body->lgd_logid.lgl_oid > 0)
logid = &body->lgd_logid;
if (req_capsule_field_present(&req->rq_pill, &RMF_NAME, RCL_CLIENT)) {
name = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
if (name == NULL)
RETURN(-EFAULT);
CDEBUG(D_INFO, "%s: opening log %s\n", obd->obd_name, name);
}
ctxt = llog_get_context(obd, body->lgd_ctxt_idx);
if (ctxt == NULL) {
CDEBUG(D_WARNING, "%s: no ctxt. group=%p idx=%d name=%s\n",
obd->obd_name, &obd->obd_olg, body->lgd_ctxt_idx, name);
RETURN(-ENODEV);
}
disk_obd = ctxt->loc_exp->exp_obd;
push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
rc = llog_create(ctxt, &loghandle, logid, name);
if (rc)
GOTO(out_pop, rc);
rc = req_capsule_server_pack(&req->rq_pill);
if (rc)
GOTO(out_close, rc = -ENOMEM);
body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
body->lgd_logid = loghandle->lgh_id;
GOTO(out_close, rc);
out_close:
rc2 = llog_close(loghandle);
if (!rc)
rc = rc2;
out_pop:
pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
llog_ctxt_put(ctxt);
return rc;
}
/* Only open is supported, no new llog can be created remotely */
int llog_origin_handle_open(struct ptlrpc_request *req)
{
struct obd_export *exp = req->rq_export;
struct obd_device *obd = exp->exp_obd;
struct llog_handle *loghandle;
struct llogd_body *body;
struct llog_logid *logid = NULL;
struct llog_ctxt *ctxt;
char *name = NULL;
int rc;
ENTRY;
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (body == NULL)
RETURN(err_serious(-EFAULT));
rc = req_capsule_server_pack(&req->rq_pill);
if (rc)
RETURN(err_serious(-ENOMEM));
if (ostid_id(&body->lgd_logid.lgl_oi) > 0)
logid = &body->lgd_logid;
if (req_capsule_field_present(&req->rq_pill, &RMF_NAME, RCL_CLIENT)) {
name = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
if (name == NULL)
RETURN(-EFAULT);
CDEBUG(D_INFO, "%s: opening log %s\n", obd->obd_name, name);
}
if (body->lgd_ctxt_idx >= LLOG_MAX_CTXTS) {
CDEBUG(D_WARNING, "%s: bad ctxt ID: idx=%d name=%s\n",
obd->obd_name, body->lgd_ctxt_idx, name);
RETURN(-EPROTO);
}
ctxt = llog_get_context(obd, body->lgd_ctxt_idx);
if (ctxt == NULL) {
CDEBUG(D_WARNING, "%s: no ctxt. group=%p idx=%d name=%s\n",
obd->obd_name, &obd->obd_olg, body->lgd_ctxt_idx, name);
RETURN(-ENODEV);
}
rc = llog_open(req->rq_svc_thread->t_env, ctxt, &loghandle, logid,
name, LLOG_OPEN_EXISTS);
if (rc)
GOTO(out_ctxt, rc);
body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
body->lgd_logid = loghandle->lgh_id;
llog_origin_close(req->rq_svc_thread->t_env, loghandle);
EXIT;
out_ctxt:
llog_ctxt_put(ctxt);
return rc;
}
static int lprocfs_rd_changelog_users(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct lu_env env;
struct mdd_device *mdd = data;
struct llog_ctxt *ctxt;
struct cucb_data cucb;
__u64 cur;
int rc;
*eof = 1;
ctxt = llog_get_context(mdd2obd_dev(mdd),
LLOG_CHANGELOG_USER_ORIG_CTXT);
if (ctxt == NULL)
return -ENXIO;
LASSERT(ctxt->loc_handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT);
rc = lu_env_init(&env, LCT_LOCAL);
if (rc) {
llog_ctxt_put(ctxt);
return rc;
}
spin_lock(&mdd->mdd_cl.mc_lock);
cur = mdd->mdd_cl.mc_index;
spin_unlock(&mdd->mdd_cl.mc_lock);
cucb.count = count;
cucb.page = page;
cucb.idx = 0;
cucb.idx += snprintf(cucb.page + cucb.idx, cucb.count - cucb.idx,
"current index: "LPU64"\n", cur);
cucb.idx += snprintf(cucb.page + cucb.idx, cucb.count - cucb.idx,
"%-5s %s\n", "ID", "index");
llog_cat_process(&env, ctxt->loc_handle, lprocfs_changelog_users_cb,
&cucb, 0, 0);
lu_env_fini(&env);
llog_ctxt_put(ctxt);
return cucb.idx;
}
static int llog_catinfo_config(struct obd_device *obd, char *buf, int buf_len,
char *client)
{
struct mds_obd *mds = &obd->u.mds;
struct llog_ctxt *ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
struct lvfs_run_ctxt saved;
struct llog_handle *handle = NULL;
char name[4][64];
int rc, i, l, remains = buf_len;
char *out = buf;
ENTRY;
if (ctxt == NULL || mds == NULL)
GOTO(release_ctxt, rc = -ENODEV);
push_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL);
sprintf(name[0], "%s", mds->mds_profile);
sprintf(name[1], "%s-clean", mds->mds_profile);
sprintf(name[2], "%s", client);
sprintf(name[3], "%s-clean", client);
for (i = 0; i < 4; i++) {
int index, uncanceled = 0;
rc = llog_create(ctxt, &handle, NULL, name[i]);
if (rc)
GOTO(out_pop, rc);
rc = llog_init_handle(handle, 0, NULL);
if (rc) {
llog_close(handle);
GOTO(out_pop, rc = -ENOENT);
}
for (index = 1; index < (LLOG_BITMAP_BYTES * 8); index ++) {
if (ext2_test_bit(index, handle->lgh_hdr->llh_bitmap))
uncanceled++;
}
l = snprintf(out, remains, "[Log Name]: %s\nLog Size: %llu\n"
"Last Index: %d\nUncanceled Records: %d\n\n",
name[i],
i_size_read(handle->lgh_file->f_dentry->d_inode),
handle->lgh_last_idx, uncanceled);
out += l;
remains -= l;
llog_close(handle);
if (remains <= 0)
break;
}
GOTO(out_pop, rc);
out_pop:
pop_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL);
release_ctxt:
llog_ctxt_put(ctxt);
return rc;
}
static int mdd_changelog_user_register(const struct lu_env *env,
struct mdd_device *mdd, int *id)
{
struct llog_ctxt *ctxt;
struct llog_changelog_user_rec *rec;
int rc;
ENTRY;
ctxt = llog_get_context(mdd2obd_dev(mdd),
LLOG_CHANGELOG_USER_ORIG_CTXT);
if (ctxt == NULL)
RETURN(-ENXIO);
OBD_ALLOC_PTR(rec);
if (rec == NULL) {
llog_ctxt_put(ctxt);
RETURN(-ENOMEM);
}
/* Assume we want it on since somebody registered */
rc = mdd_changelog_on(env, mdd, 1);
if (rc)
GOTO(out, rc);
rec->cur_hdr.lrh_len = sizeof(*rec);
rec->cur_hdr.lrh_type = CHANGELOG_USER_REC;
spin_lock(&mdd->mdd_cl.mc_user_lock);
if (mdd->mdd_cl.mc_lastuser == (unsigned int)(-1)) {
spin_unlock(&mdd->mdd_cl.mc_user_lock);
CERROR("Maximum number of changelog users exceeded!\n");
GOTO(out, rc = -EOVERFLOW);
}
*id = rec->cur_id = ++mdd->mdd_cl.mc_lastuser;
rec->cur_endrec = mdd->mdd_cl.mc_index;
spin_unlock(&mdd->mdd_cl.mc_user_lock);
rc = llog_cat_add(env, ctxt->loc_handle, &rec->cur_hdr, NULL);
CDEBUG(D_IOCTL, "Registered changelog user %d\n", *id);
out:
OBD_FREE_PTR(rec);
llog_ctxt_put(ctxt);
RETURN(rc);
}
/* -------------------------------------------------------------------------
* Tests above, boring obd functions below
* ------------------------------------------------------------------------- */
static int llog_run_tests(const struct lu_env *env, struct obd_device *obd)
{
struct llog_handle *llh = NULL;
struct llog_ctxt *ctxt;
int rc, err;
char name[10];
ENTRY;
ctxt = llog_get_context(obd, LLOG_TEST_ORIG_CTXT);
LASSERT(ctxt);
sprintf(name, "%x", llog_test_rand);
rc = llog_test_1(env, obd, name);
if (rc)
GOTO(cleanup_ctxt, rc);
rc = llog_test_2(env, obd, name, &llh);
if (rc)
GOTO(cleanup_ctxt, rc);
rc = llog_test_3(env, obd, llh);
if (rc)
GOTO(cleanup, rc);
rc = llog_test_4(env, obd);
if (rc)
GOTO(cleanup, rc);
rc = llog_test_5(env, obd);
if (rc)
GOTO(cleanup, rc);
rc = llog_test_6(env, obd, name);
if (rc)
GOTO(cleanup, rc);
rc = llog_test_7(env, obd);
if (rc)
GOTO(cleanup, rc);
rc = llog_test_8(env, obd);
if (rc)
GOTO(cleanup, rc);
cleanup:
err = llog_destroy(env, llh);
if (err)
CERROR("cleanup: llog_destroy failed: %d\n", err);
llog_close(env, llh);
if (rc == 0)
rc = err;
cleanup_ctxt:
llog_ctxt_put(ctxt);
return rc;
}
/* -------------------------------------------------------------------------
* Tests above, boring obd functions below
* ------------------------------------------------------------------------- */
static int llog_run_tests(struct obd_device *obd)
{
struct llog_handle *llh;
struct lvfs_run_ctxt saved;
struct llog_ctxt *ctxt = llog_get_context(obd, LLOG_TEST_ORIG_CTXT);
int rc, err, cleanup_phase = 0;
char name[10];
ENTRY;
sprintf(name, "%x", llog_test_rand);
push_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL);
rc = llog_test_1(obd, name);
if (rc)
GOTO(cleanup, rc);
rc = llog_test_2(obd, name, &llh);
if (rc)
GOTO(cleanup, rc);
cleanup_phase = 1; /* close llh */
rc = llog_test_3(obd, llh);
if (rc)
GOTO(cleanup, rc);
rc = llog_test_4(obd);
if (rc)
GOTO(cleanup, rc);
rc = llog_test_5(obd);
if (rc)
GOTO(cleanup, rc);
rc = llog_test_6(obd, name);
if (rc)
GOTO(cleanup, rc);
rc = llog_test_7(obd);
if (rc)
GOTO(cleanup, rc);
cleanup:
switch (cleanup_phase) {
case 1:
err = llog_close(llh);
if (err)
CERROR("cleanup: llog_close failed: %d\n", err);
if (!rc)
rc = err;
case 0:
pop_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL);
}
llog_ctxt_put(ctxt);
return rc;
}
int llog_origin_handle_read_header(struct ptlrpc_request *req)
{
struct llog_handle *loghandle;
struct llogd_body *body;
struct llog_log_hdr *hdr;
struct llog_ctxt *ctxt;
__u32 flags;
int rc;
ENTRY;
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (body == NULL)
RETURN(err_serious(-EFAULT));
rc = req_capsule_server_pack(&req->rq_pill);
if (rc)
RETURN(err_serious(-ENOMEM));
if (body->lgd_ctxt_idx >= LLOG_MAX_CTXTS) {
CDEBUG(D_WARNING, "%s: bad ctxt ID: idx=%d\n",
req->rq_export->exp_obd->obd_name, body->lgd_ctxt_idx);
RETURN(-EPROTO);
}
ctxt = llog_get_context(req->rq_export->exp_obd, body->lgd_ctxt_idx);
if (ctxt == NULL)
RETURN(-ENODEV);
rc = llog_open(req->rq_svc_thread->t_env, ctxt, &loghandle,
&body->lgd_logid, NULL, LLOG_OPEN_EXISTS);
if (rc)
GOTO(out_ctxt, rc);
/*
* llog_init_handle() reads the llog header
*/
flags = body->lgd_llh_flags;
rc = llog_init_handle(req->rq_svc_thread->t_env, loghandle, flags,
NULL);
if (rc)
GOTO(out_close, rc);
flags = loghandle->lgh_hdr->llh_flags;
hdr = req_capsule_server_get(&req->rq_pill, &RMF_LLOG_LOG_HDR);
*hdr = *loghandle->lgh_hdr;
EXIT;
out_close:
llog_origin_close(req->rq_svc_thread->t_env, loghandle);
out_ctxt:
llog_ctxt_put(ctxt);
return rc;
}
int llog_origin_handle_read_header(struct ptlrpc_request *req)
{
struct obd_export *exp = req->rq_export;
struct obd_device *obd = exp->exp_obd;
struct obd_device *disk_obd;
struct llog_handle *loghandle;
struct llogd_body *body;
struct llog_log_hdr *hdr;
struct lvfs_run_ctxt saved;
struct llog_ctxt *ctxt;
__u32 flags;
int rc, rc2;
ENTRY;
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (body == NULL)
RETURN(-EFAULT);
ctxt = llog_get_context(obd, body->lgd_ctxt_idx);
if (ctxt == NULL)
RETURN(-ENODEV);
disk_obd = ctxt->loc_exp->exp_obd;
push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
rc = llog_create(ctxt, &loghandle, &body->lgd_logid, NULL);
if (rc)
GOTO(out_pop, rc);
/*
* llog_init_handle() reads the llog header
*/
flags = body->lgd_llh_flags;
rc = llog_init_handle(loghandle, flags, NULL);
if (rc)
GOTO(out_close, rc);
rc = req_capsule_server_pack(&req->rq_pill);
if (rc)
GOTO(out_close, rc = -ENOMEM);
hdr = req_capsule_server_get(&req->rq_pill, &RMF_LLOG_LOG_HDR);
*hdr = *loghandle->lgh_hdr;
GOTO(out_close, rc);
out_close:
rc2 = llog_close(loghandle);
if (!rc)
rc = rc2;
out_pop:
pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
llog_ctxt_put(ctxt);
return rc;
}
int llog_origin_handle_destroy(struct ptlrpc_request *req)
{
struct obd_export *exp = req->rq_export;
struct obd_device *obd = exp->exp_obd;
struct obd_device *disk_obd;
struct llog_handle *loghandle;
struct llogd_body *body;
struct lvfs_run_ctxt saved;
struct llog_logid *logid = NULL;
struct llog_ctxt *ctxt;
int rc;
ENTRY;
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (body == NULL)
RETURN(-EFAULT);
if (body->lgd_logid.lgl_oid > 0)
logid = &body->lgd_logid;
ctxt = llog_get_context(obd, body->lgd_ctxt_idx);
if (ctxt == NULL)
RETURN(-ENODEV);
disk_obd = ctxt->loc_exp->exp_obd;
push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
rc = llog_create(ctxt, &loghandle, logid, NULL);
if (rc)
GOTO(out_pop, rc);
rc = req_capsule_server_pack(&req->rq_pill);
if (rc)
GOTO(out_close, rc = -ENOMEM);
body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
body->lgd_logid = loghandle->lgh_id;
rc = llog_init_handle(loghandle, LLOG_F_IS_PLAIN, NULL);
if (rc)
GOTO(out_close, rc);
rc = llog_destroy(loghandle);
if (rc)
GOTO(out_close, rc);
llog_free_handle(loghandle);
GOTO(out_close, rc);
out_close:
if (rc)
llog_close(loghandle);
out_pop:
pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL);
llog_ctxt_put(ctxt);
return rc;
}
/** Add a CL_MARK record to the changelog
* \param mdd
* \param markerflags - CLM_*
* \retval 0 ok
*/
int mdd_changelog_write_header(const struct lu_env *env,
struct mdd_device *mdd, int markerflags)
{
struct obd_device *obd = mdd2obd_dev(mdd);
struct llog_changelog_rec *rec;
struct lu_buf *buf;
struct llog_ctxt *ctxt;
int reclen;
int len = strlen(obd->obd_name);
int rc;
ENTRY;
if (mdd->mdd_cl.mc_mask & (1 << CL_MARK)) {
mdd->mdd_cl.mc_starttime = cfs_time_current_64();
RETURN(0);
}
reclen = llog_data_len(sizeof(*rec) + len);
buf = lu_buf_check_and_alloc(&mdd_env_info(env)->mti_big_buf, reclen);
if (buf->lb_buf == NULL)
RETURN(-ENOMEM);
rec = buf->lb_buf;
rec->cr.cr_flags = CLF_VERSION;
rec->cr.cr_type = CL_MARK;
rec->cr.cr_namelen = len;
memcpy(changelog_rec_name(&rec->cr), obd->obd_name, rec->cr.cr_namelen);
/* Status and action flags */
rec->cr.cr_markerflags = mdd->mdd_cl.mc_flags | markerflags;
rec->cr_hdr.lrh_len = llog_data_len(changelog_rec_size(&rec->cr) +
rec->cr.cr_namelen);
rec->cr_hdr.lrh_type = CHANGELOG_REC;
rec->cr.cr_time = cl_time();
spin_lock(&mdd->mdd_cl.mc_lock);
rec->cr.cr_index = ++mdd->mdd_cl.mc_index;
spin_unlock(&mdd->mdd_cl.mc_lock);
ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
LASSERT(ctxt);
rc = llog_cat_add(env, ctxt->loc_handle, &rec->cr_hdr, NULL);
if (rc > 0)
rc = 0;
llog_ctxt_put(ctxt);
/* assume on or off event; reset repeat-access time */
mdd->mdd_cl.mc_starttime = cfs_time_current_64();
RETURN(rc);
}
static int mds_llog_repl_cancel(struct llog_ctxt *ctxt, struct lov_stripe_md *lsm,
int count, struct llog_cookie *cookies, int flags)
{
struct obd_device *obd = ctxt->loc_obd;
struct obd_device *lov_obd = obd->u.mds.mds_lov_obd;
struct llog_ctxt *lctxt;
int rc;
ENTRY;
lctxt = llog_get_context(lov_obd, ctxt->loc_idx);
rc = llog_cancel(lctxt, lsm, count, cookies, flags);
llog_ctxt_put(lctxt);
RETURN(rc);
}
/* Test named-log reopen; returns opened log on success */
static int llog_test_2(struct obd_device *obd, char *name,
struct llog_handle **llh)
{
struct llog_ctxt *ctxt = llog_get_context(obd, LLOG_TEST_ORIG_CTXT);
int rc;
ENTRY;
CWARN("2a: re-open a log with name: %s\n", name);
rc = llog_create(ctxt, llh, NULL, name);
if (rc) {
CERROR("2a: re-open log with name %s failed: %d\n", name, rc);
GOTO(out, rc);
}
llog_init_handle(*llh, LLOG_F_IS_PLAIN, &uuid);
if ((rc = verify_handle("2", *llh, 1)))
GOTO(out, rc);
#if 0
CWARN("2b: create a log without specified NAME & LOGID\n");
rc = llog_create(ctxt, &loghandle, NULL, NULL);
if (rc) {
CERROR("2b: create log failed\n");
GOTO(out, rc);
}
llog_init_handle(loghandle, LLOG_F_IS_PLAIN, &uuid);
logid = loghandle->lgh_id;
llog_close(loghandle);
CWARN("2b: re-open the log by LOGID\n");
rc = llog_create(ctxt, &loghandle, &logid, NULL);
if (rc) {
CERROR("2b: re-open log by LOGID failed\n");
GOTO(out, rc);
}
llog_init_handle(loghandle, LLOG_F_IS_PLAIN, &uuid);
CWARN("2b: destroy this log\n");
rc = llog_destroy(loghandle);
if (rc) {
CERROR("2b: destroy log failed\n");
GOTO(out, rc);
}
llog_free_handle(loghandle);
#endif
out:
llog_ctxt_put(ctxt);
RETURN(rc);
}
static int mdd_changelog_size_ctxt(const struct lu_env *env,
struct mdd_device *mdd,
int index, __u64 *val)
{
struct llog_ctxt *ctxt;
ctxt = llog_get_context(mdd2obd_dev(mdd),
index);
if (ctxt == NULL)
return -ENXIO;
if (!(ctxt->loc_handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)) {
CERROR("%s: ChangeLog has wrong flags: rc = %d\n",
ctxt->loc_obd->obd_name, -EINVAL);
llog_ctxt_put(ctxt);
return -EINVAL;
}
*val += llog_cat_size(env, ctxt->loc_handle);
llog_ctxt_put(ctxt);
return 0;
}
static int mds_llog_origin_connect(struct llog_ctxt *ctxt,
struct llog_logid *logid,
struct llog_gen *gen,
struct obd_uuid *uuid)
{
struct obd_device *obd = ctxt->loc_obd;
struct obd_device *lov_obd = obd->u.mds.mds_lov_obd;
struct llog_ctxt *lctxt;
int rc;
ENTRY;
lctxt = llog_get_context(lov_obd, ctxt->loc_idx);
rc = llog_connect(lctxt, logid, gen, uuid);
llog_ctxt_put(lctxt);
RETURN(rc);
}
static int mds_llog_origin_add(struct llog_ctxt *ctxt, struct llog_rec_hdr *rec,
struct lov_stripe_md *lsm,
struct llog_cookie *logcookies, int numcookies)
{
struct obd_device *obd = ctxt->loc_obd;
struct obd_device *lov_obd = obd->u.mds.mds_lov_obd;
struct llog_ctxt *lctxt;
int rc;
ENTRY;
lctxt = llog_get_context(lov_obd, ctxt->loc_idx);
rc = llog_add(lctxt, rec, lsm, logcookies, numcookies);
llog_ctxt_put(lctxt);
RETURN(rc);
}
/**
* set llog methods and create LLOG_AGENT_ORIG_CTXT llog
* object in obd_device
*/
static int mdd_hsm_actions_llog_init(const struct lu_env *env,
struct mdd_device *m)
{
struct obd_device *obd = mdd2obd_dev(m);
struct llog_ctxt *ctxt = NULL;
int rc;
ENTRY;
OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt);
obd->obd_lvfs_ctxt.dt = m->mdd_bottom;
rc = llog_setup(env, obd, &obd->obd_olg, LLOG_AGENT_ORIG_CTXT,
obd, &hsm_actions_logops);
if (rc) {
CERROR("%s: hsm actions llog setup failed: rc = %d\n",
obd->obd_name, rc);
RETURN(rc);
}
ctxt = llog_get_context(obd, LLOG_AGENT_ORIG_CTXT);
LASSERT(ctxt);
rc = llog_open_create(env, ctxt, &ctxt->loc_handle, NULL,
HSM_ACTIONS);
if (rc) {
CERROR("%s: hsm actions llog open_create failed: rc = %d\n",
obd->obd_name, rc);
GOTO(out_cleanup, rc);
}
rc = llog_cat_init_and_process(env, ctxt->loc_handle);
if (rc)
GOTO(out_close, rc);
llog_ctxt_put(ctxt);
RETURN(0);
out_close:
llog_cat_close(env, ctxt->loc_handle);
ctxt->loc_handle = NULL;
out_cleanup:
llog_cleanup(env, ctxt);
return rc;
}
static int mgc_llog_init(struct obd_device *obd, struct obd_llog_group *olg,
struct obd_device *tgt, int *index)
{
struct llog_ctxt *ctxt;
int rc;
LASSERT(olg == &obd->obd_olg);
rc = llog_setup(NULL, obd, olg, LLOG_CONFIG_REPL_CTXT, tgt,
&llog_client_ops);
if (rc < 0)
return rc;
ctxt = llog_group_get_ctxt(olg, LLOG_CONFIG_REPL_CTXT);
llog_initiator_connect(ctxt);
llog_ctxt_put(ctxt);
return rc;
}
/** Remove entries with indicies up to and including \a endrec from the
* changelog
* \param mdd
* \param endrec
* \retval 0 ok
*/
static int
mdd_changelog_llog_cancel(const struct lu_env *env, struct mdd_device *mdd,
long long endrec)
{
struct obd_device *obd = mdd2obd_dev(mdd);
struct llog_ctxt *ctxt;
long long unsigned cur;
int rc;
ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
if (ctxt == NULL)
return -ENXIO;
spin_lock(&mdd->mdd_cl.mc_lock);
cur = (long long)mdd->mdd_cl.mc_index;
spin_unlock(&mdd->mdd_cl.mc_lock);
if (endrec > cur)
endrec = cur;
/* purge to "0" is shorthand for everything */
if (endrec == 0)
endrec = cur;
/* If purging all records, write a header entry so we don't have an
empty catalog and we're sure to have a valid starting index next
time. In case of crash, we just restart with old log so we're
allright. */
if (endrec == cur) {
/* XXX: transaction is started by llog itself */
rc = mdd_changelog_write_header(env, mdd, CLM_PURGE);
if (rc)
goto out;
}
/* Some records were purged, so reset repeat-access time (so we
record new mtime update records, so users can see a file has been
changed since the last purge) */
mdd->mdd_cl.mc_starttime = cfs_time_current_64();
rc = llog_cancel(env, ctxt, (struct llog_cookie *)&endrec, 0);
out:
llog_ctxt_put(ctxt);
return rc;
}
/* the replicators commit callback */
static int lov_llog_repl_cancel(const struct lu_env *env,
struct llog_ctxt *ctxt,
struct lov_stripe_md *lsm,
int count, struct llog_cookie *cookies,
int flags)
{
struct lov_obd *lov;
struct obd_device *obd = ctxt->loc_obd;
int rc = 0, i;
ENTRY;
LASSERT(lsm != NULL);
LASSERT(count == lsm->lsm_stripe_count);
lov = &obd->u.lov;
obd_getref(obd);
for (i = 0; i < count; i++, cookies++) {
struct lov_oinfo *loi = lsm->lsm_oinfo[i];
struct obd_device *child =
lov->lov_tgts[loi->loi_ost_idx]->ltd_exp->exp_obd;
struct llog_ctxt *cctxt =
llog_get_context(child, ctxt->loc_idx);
int err;
err = llog_cancel(env, cctxt, NULL, 1, cookies, flags);
llog_ctxt_put(cctxt);
if (err && lov->lov_tgts[loi->loi_ost_idx]->ltd_active) {
CERROR("%s: objid "DOSTID" subobj "DOSTID
" on OST idx %d: rc = %d\n",
obd->obd_name, POSTID(&lsm->lsm_oi),
POSTID(&loi->loi_oi), loi->loi_ost_idx, err);
if (!rc)
rc = err;
}
}
obd_putref(obd);
RETURN(rc);
}