static int llog_client_destroy(const struct lu_env *env,
struct llog_handle *loghandle)
{
struct obd_import *imp;
struct ptlrpc_request *req = NULL;
struct llogd_body *body;
int rc;
LLOG_CLIENT_ENTRY(loghandle->lgh_ctxt, imp);
req = ptlrpc_request_alloc_pack(imp, &RQF_LLOG_ORIGIN_HANDLE_DESTROY,
LUSTRE_LOG_VERSION,
LLOG_ORIGIN_HANDLE_DESTROY);
if (req == NULL)
GOTO(err_exit, rc =-ENOMEM);
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
body->lgd_logid = loghandle->lgh_id;
body->lgd_llh_flags = loghandle->lgh_hdr->llh_flags;
if (!(body->lgd_llh_flags & LLOG_F_IS_PLAIN))
CERROR("%s: wrong llog flags %x\n", imp->imp_obd->obd_name,
body->lgd_llh_flags);
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
ptlrpc_req_finished(req);
err_exit:
LLOG_CLIENT_EXIT(loghandle->lgh_ctxt, imp);
return rc;
}
int osc_quotacheck(struct obd_device *unused, struct obd_export *exp,
struct obd_quotactl *oqctl)
{
struct client_obd *cli = &exp->exp_obd->u.cli;
struct ptlrpc_request *req;
struct obd_quotactl *body;
int rc;
ENTRY;
req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
&RQF_OST_QUOTACHECK, LUSTRE_OST_VERSION,
OST_QUOTACHECK);
if (req == NULL)
RETURN(-ENOMEM);
body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
*body = *oqctl;
ptlrpc_request_set_replen(req);
/* the next poll will find -ENODATA, that means quotacheck is
* going on */
cli->cl_qchk_stat = -ENODATA;
rc = ptlrpc_queue_wait(req);
if (rc)
cli->cl_qchk_stat = rc;
ptlrpc_req_finished(req);
RETURN(rc);
}
static int llog_client_next_block(const struct lu_env *env,
struct llog_handle *loghandle,
int *cur_idx, int next_idx,
__u64 *cur_offset, void *buf, int len)
{
struct obd_import *imp;
struct ptlrpc_request *req = NULL;
struct llogd_body *body;
void *ptr;
int rc;
LLOG_CLIENT_ENTRY(loghandle->lgh_ctxt, imp);
req = ptlrpc_request_alloc_pack(imp, &RQF_LLOG_ORIGIN_HANDLE_NEXT_BLOCK,
LUSTRE_LOG_VERSION,
LLOG_ORIGIN_HANDLE_NEXT_BLOCK);
if (!req) {
rc = -ENOMEM;
goto err_exit;
}
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
body->lgd_logid = loghandle->lgh_id;
body->lgd_ctxt_idx = loghandle->lgh_ctxt->loc_idx - 1;
body->lgd_llh_flags = loghandle->lgh_hdr->llh_flags;
body->lgd_index = next_idx;
body->lgd_saved_index = *cur_idx;
body->lgd_len = len;
body->lgd_cur_offset = *cur_offset;
req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_SERVER, len);
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
if (rc)
goto out;
body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (!body) {
rc = -EFAULT;
goto out;
}
/* The log records are swabbed as they are processed */
ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA);
if (!ptr) {
rc = -EFAULT;
goto out;
}
*cur_idx = body->lgd_saved_index;
*cur_offset = body->lgd_cur_offset;
memcpy(buf, ptr, len);
out:
ptlrpc_req_finished(req);
err_exit:
LLOG_CLIENT_EXIT(loghandle->lgh_ctxt, imp);
return rc;
}
static int llog_client_read_header(const struct lu_env *env,
struct llog_handle *handle)
{
struct obd_import *imp;
struct ptlrpc_request *req = NULL;
struct llogd_body *body;
struct llog_log_hdr *hdr;
struct llog_rec_hdr *llh_hdr;
int rc;
LLOG_CLIENT_ENTRY(handle->lgh_ctxt, imp);
req = ptlrpc_request_alloc_pack(imp, &RQF_LLOG_ORIGIN_HANDLE_READ_HEADER,
LUSTRE_LOG_VERSION,
LLOG_ORIGIN_HANDLE_READ_HEADER);
if (req == NULL) {
rc = -ENOMEM;
goto err_exit;
}
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
body->lgd_logid = handle->lgh_id;
body->lgd_ctxt_idx = handle->lgh_ctxt->loc_idx - 1;
body->lgd_llh_flags = handle->lgh_hdr->llh_flags;
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
if (rc)
goto out;
hdr = req_capsule_server_get(&req->rq_pill, &RMF_LLOG_LOG_HDR);
if (hdr == NULL) {
rc = -EFAULT;
goto out;
}
memcpy(handle->lgh_hdr, hdr, sizeof(*hdr));
handle->lgh_last_idx = handle->lgh_hdr->llh_tail.lrt_index;
/* sanity checks */
llh_hdr = &handle->lgh_hdr->llh_hdr;
if (llh_hdr->lrh_type != LLOG_HDR_MAGIC) {
CERROR("bad log header magic: %#x (expecting %#x)\n",
llh_hdr->lrh_type, LLOG_HDR_MAGIC);
rc = -EIO;
} else if (llh_hdr->lrh_len != LLOG_CHUNK_SIZE) {
CERROR("incorrectly sized log header: %#x "
"(expecting %#x)\n",
llh_hdr->lrh_len, LLOG_CHUNK_SIZE);
CERROR("you may need to re-run lconf --write_conf.\n");
rc = -EIO;
}
out:
ptlrpc_req_finished(req);
err_exit:
LLOG_CLIENT_EXIT(handle->lgh_ctxt, imp);
return rc;
}
/*
* Send non-intent quota request to master.
*
* \param env - the environment passed by the caller
* \param exp - is the export to use to send the acquire RPC
* \param qbody - quota body to be packed in request
* \param sync - synchronous or asynchronous
* \param completion - completion callback
* \param qqi - is the qsd_qtype_info structure to pass to the completion
* function
* \param lqe - is the qid entry to be processed
*
* \retval 0 - success
* \retval -ve - appropriate errors
*/
int qsd_send_dqacq(const struct lu_env *env, struct obd_export *exp,
struct quota_body *qbody, bool sync,
qsd_req_completion_t completion, struct qsd_qtype_info *qqi,
struct lustre_handle *lockh, struct lquota_entry *lqe)
{
struct ptlrpc_request *req;
struct quota_body *req_qbody;
struct qsd_async_args *aa;
int rc;
ENTRY;
LASSERT(exp);
req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_QUOTA_DQACQ);
if (req == NULL)
GOTO(out, rc = -ENOMEM);
req->rq_no_resend = req->rq_no_delay = 1;
req->rq_no_retry_einprogress = 1;
rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, QUOTA_DQACQ);
if (rc) {
ptlrpc_request_free(req);
GOTO(out, rc);
}
req->rq_request_portal = MDS_READPAGE_PORTAL;
req_qbody = req_capsule_client_get(&req->rq_pill, &RMF_QUOTA_BODY);
*req_qbody = *qbody;
ptlrpc_request_set_replen(req);
CLASSERT(sizeof(*aa) <= sizeof(req->rq_async_args));
aa = ptlrpc_req_async_args(req);
aa->aa_exp = exp;
aa->aa_qqi = qqi;
aa->aa_arg = (void *)lqe;
aa->aa_completion = completion;
lustre_handle_copy(&aa->aa_lockh, lockh);
if (sync) {
rc = ptlrpc_queue_wait(req);
rc = qsd_dqacq_interpret(env, req, aa, rc);
ptlrpc_req_finished(req);
} else {
req->rq_interpret_reply = qsd_dqacq_interpret;
ptlrpcd_add_req(req);
}
RETURN(rc);
out:
completion(env, qqi, qbody, NULL, lockh, NULL, lqe, rc);
return rc;
}
static int llog_client_prev_block(const struct lu_env *env,
struct llog_handle *loghandle,
int prev_idx, void *buf, int len)
{
struct obd_import *imp;
struct ptlrpc_request *req = NULL;
struct llogd_body *body;
void *ptr;
int rc;
LLOG_CLIENT_ENTRY(loghandle->lgh_ctxt, imp);
req = ptlrpc_request_alloc_pack(imp, &RQF_LLOG_ORIGIN_HANDLE_PREV_BLOCK,
LUSTRE_LOG_VERSION,
LLOG_ORIGIN_HANDLE_PREV_BLOCK);
if (!req) {
rc = -ENOMEM;
goto err_exit;
}
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
body->lgd_logid = loghandle->lgh_id;
body->lgd_ctxt_idx = loghandle->lgh_ctxt->loc_idx - 1;
body->lgd_llh_flags = loghandle->lgh_hdr->llh_flags;
body->lgd_index = prev_idx;
body->lgd_len = len;
req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_SERVER, len);
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
if (rc)
goto out;
body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (!body) {
rc = -EFAULT;
goto out;
}
ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA);
if (!ptr) {
rc = -EFAULT;
goto out;
}
memcpy(buf, ptr, len);
out:
ptlrpc_req_finished(req);
err_exit:
LLOG_CLIENT_EXIT(loghandle->lgh_ctxt, imp);
return rc;
}
/* mdc_setattr does its own semaphore handling */
static int mdc_reint(struct ptlrpc_request *request, int level)
{
int rc;
request->rq_send_state = level;
mdc_get_mod_rpc_slot(request, NULL);
rc = ptlrpc_queue_wait(request);
mdc_put_mod_rpc_slot(request, NULL);
if (rc)
CDEBUG(D_INFO, "error in handling %d\n", rc);
else if (!req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY)) {
rc = -EPROTO;
}
return rc;
}
int ptlrpc_obd_ping(struct obd_device *obd)
{
int rc;
struct ptlrpc_request *req;
req = ptlrpc_prep_ping(obd->u.cli.cl_import);
if (!req)
return -ENOMEM;
req->rq_send_state = LUSTRE_IMP_FULL;
rc = ptlrpc_queue_wait(req);
ptlrpc_req_finished(req);
return rc;
}
int ptlrpc_obd_ping(struct obd_device *obd)
{
int rc;
struct ptlrpc_request *req;
ENTRY;
req = ptlrpc_prep_ping(obd->u.cli.cl_import);
if (req == NULL)
RETURN(-ENOMEM);
req->rq_send_state = LUSTRE_IMP_FULL;
rc = ptlrpc_queue_wait(req);
ptlrpc_req_finished(req);
RETURN(rc);
}
int client_quota_check(struct obd_device *unused, struct obd_export *exp,
struct obd_quotactl *oqctl)
{
struct client_obd *cli = &exp->exp_obd->u.cli;
struct ptlrpc_request *req;
struct obd_quotactl *body;
const struct req_format *rf;
int ver, opc, rc;
ENTRY;
if (!strcmp(exp->exp_obd->obd_type->typ_name, LUSTRE_MDC_NAME)) {
rf = &RQF_MDS_QUOTACHECK;
ver = LUSTRE_MDS_VERSION;
opc = MDS_QUOTACHECK;
} else if (!strcmp(exp->exp_obd->obd_type->typ_name, LUSTRE_OSC_NAME)) {
rf = &RQF_OST_QUOTACHECK;
ver = LUSTRE_OST_VERSION;
opc = OST_QUOTACHECK;
} else {
RETURN(-EINVAL);
}
req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), rf, ver, opc);
if (req == NULL)
RETURN(-ENOMEM);
body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
*body = *oqctl;
ptlrpc_request_set_replen(req);
/* the next poll will find -ENODATA, that means quotacheck is
* going on */
cli->cl_qchk_stat = -ENODATA;
rc = ptlrpc_queue_wait(req);
if (rc)
cli->cl_qchk_stat = rc;
ptlrpc_req_finished(req);
RETURN(rc);
}
static int target_quotacheck_callback(struct obd_export *exp,
struct obd_quotactl *oqctl)
{
struct ptlrpc_request *req;
struct obd_quotactl *body;
int rc;
ENTRY;
req = ptlrpc_request_alloc_pack(exp->exp_imp_reverse, &RQF_QC_CALLBACK,
LUSTRE_OBD_VERSION, OBD_QC_CALLBACK);
if (req == NULL)
RETURN(-ENOMEM);
body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
*body = *oqctl;
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
ptlrpc_req_finished(req);
RETURN(rc);
}
int osc_quotactl(struct obd_device *unused, struct obd_export *exp,
struct obd_quotactl *oqctl)
{
struct ptlrpc_request *req;
struct obd_quotactl *oqc;
int rc;
ENTRY;
req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
&RQF_OST_QUOTACTL, LUSTRE_OST_VERSION,
OST_QUOTACTL);
if (req == NULL)
RETURN(-ENOMEM);
oqc = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
*oqc = *oqctl;
ptlrpc_request_set_replen(req);
ptlrpc_at_set_req_timeout(req);
req->rq_no_resend = 1;
rc = ptlrpc_queue_wait(req);
if (rc)
CERROR("ptlrpc_queue_wait failed, rc: %d\n", rc);
if (req->rq_repmsg &&
(oqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL))) {
*oqctl = *oqc;
} else if (!rc) {
CERROR ("Can't unpack obd_quotactl\n");
rc = -EPROTO;
}
ptlrpc_req_finished(req);
RETURN(rc);
}
/*
* Fetch a global or slave index from the QMT.
*
* \param env - the environment passed by the caller
* \param exp - is the export to use to issue the OBD_IDX_READ RPC
* \param ii - is the index information to be packed in the request
* on success, the index information returned by the server
* is copied there.
* \param npages - is the number of pages in the pages array
* \param pages - is an array of @npages pages
*
* \retval 0 - success
* \retval -ve - appropriate errors
*/
int qsd_fetch_index(const struct lu_env *env, struct obd_export *exp,
struct idx_info *ii, unsigned int npages,
struct page **pages, bool *need_swab)
{
struct ptlrpc_request *req;
struct idx_info *req_ii;
struct ptlrpc_bulk_desc *desc;
int rc, i;
ENTRY;
LASSERT(exp);
req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_OBD_IDX_READ);
if (req == NULL)
RETURN(-ENOMEM);
rc = ptlrpc_request_pack(req, LUSTRE_OBD_VERSION, OBD_IDX_READ);
if (rc) {
ptlrpc_request_free(req);
RETURN(rc);
}
req->rq_request_portal = MDS_READPAGE_PORTAL;
ptlrpc_at_set_req_timeout(req);
/* allocate bulk descriptor */
desc = ptlrpc_prep_bulk_imp(req, npages, 1, BULK_PUT_SINK,
MDS_BULK_PORTAL);
if (desc == NULL) {
ptlrpc_request_free(req);
RETURN(-ENOMEM);
}
/* req now owns desc and will free it when it gets freed */
for (i = 0; i < npages; i++)
ptlrpc_prep_bulk_page_pin(desc, pages[i], 0, PAGE_CACHE_SIZE);
/* pack index information in request */
req_ii = req_capsule_client_get(&req->rq_pill, &RMF_IDX_INFO);
*req_ii = *ii;
ptlrpc_request_set_replen(req);
/* send request to master and wait for RPC to complete */
rc = ptlrpc_queue_wait(req);
if (rc)
GOTO(out, rc);
rc = sptlrpc_cli_unwrap_bulk_read(req, req->rq_bulk,
req->rq_bulk->bd_nob_transferred);
if (rc < 0)
GOTO(out, rc);
else
/* sptlrpc_cli_unwrap_bulk_read() returns the number of bytes
* transferred*/
rc = 0;
req_ii = req_capsule_server_get(&req->rq_pill, &RMF_IDX_INFO);
*ii = *req_ii;
*need_swab = ptlrpc_rep_need_swab(req);
EXIT;
out:
ptlrpc_req_finished(req);
return rc;
}
/**
* asks OST to clean precreate orphans
* and gets next id for new objects
*/
static int osp_precreate_cleanup_orphans(struct lu_env *env,
struct osp_device *d)
{
struct osp_thread_info *osi = osp_env_info(env);
struct lu_fid *last_fid = &osi->osi_fid;
struct ptlrpc_request *req = NULL;
struct obd_import *imp;
struct ost_body *body;
struct l_wait_info lwi = { 0 };
int update_status = 0;
int rc;
int diff;
ENTRY;
/*
* wait for local recovery to finish, so we can cleanup orphans
* orphans are all objects since "last used" (assigned), but
* there might be objects reserved and in some cases they won't
* be used. we can't cleanup them till we're sure they won't be
* used. also can't we allow new reservations because they may
* end up getting orphans being cleaned up below. so we block
* new reservations and wait till all reserved objects either
* user or released.
*/
spin_lock(&d->opd_pre_lock);
d->opd_pre_recovering = 1;
spin_unlock(&d->opd_pre_lock);
/*
* The locking above makes sure the opd_pre_reserved check below will
* catch all osp_precreate_reserve() calls who find
* "!opd_pre_recovering".
*/
l_wait_event(d->opd_pre_waitq,
(!d->opd_pre_reserved && d->opd_recovery_completed) ||
!osp_precreate_running(d) || d->opd_got_disconnected,
&lwi);
if (!osp_precreate_running(d) || d->opd_got_disconnected)
GOTO(out, rc = -EAGAIN);
CDEBUG(D_HA, "%s: going to cleanup orphans since "DFID"\n",
d->opd_obd->obd_name, PFID(&d->opd_last_used_fid));
*last_fid = d->opd_last_used_fid;
/* The OSP should already get the valid seq now */
LASSERT(!fid_is_zero(last_fid));
if (fid_oid(&d->opd_last_used_fid) < 2) {
/* lastfid looks strange... ask OST */
rc = osp_get_lastfid_from_ost(env, d);
if (rc)
GOTO(out, rc);
}
imp = d->opd_obd->u.cli.cl_import;
LASSERT(imp);
req = ptlrpc_request_alloc(imp, &RQF_OST_CREATE);
if (req == NULL)
GOTO(out, rc = -ENOMEM);
rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_CREATE);
if (rc) {
ptlrpc_request_free(req);
req = NULL;
GOTO(out, rc);
}
body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
if (body == NULL)
GOTO(out, rc = -EPROTO);
body->oa.o_flags = OBD_FL_DELORPHAN;
body->oa.o_valid = OBD_MD_FLFLAGS | OBD_MD_FLGROUP;
fid_to_ostid(&d->opd_last_used_fid, &body->oa.o_oi);
ptlrpc_request_set_replen(req);
/* Don't resend the delorphan req */
req->rq_no_resend = req->rq_no_delay = 1;
rc = ptlrpc_queue_wait(req);
if (rc) {
update_status = 1;
GOTO(out, rc);
}
body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
if (body == NULL)
GOTO(out, rc = -EPROTO);
/*
* OST provides us with id new pool starts from in body->oa.o_id
*/
ostid_to_fid(last_fid, &body->oa.o_oi, d->opd_index);
spin_lock(&d->opd_pre_lock);
diff = lu_fid_diff(&d->opd_last_used_fid, last_fid);
if (diff > 0) {
d->opd_pre_grow_count = OST_MIN_PRECREATE + diff;
d->opd_pre_last_created_fid = d->opd_last_used_fid;
} else {
d->opd_pre_grow_count = OST_MIN_PRECREATE;
d->opd_pre_last_created_fid = *last_fid;
}
/*
* This empties the pre-creation pool and effectively blocks any new
* reservations.
*/
LASSERT(fid_oid(&d->opd_pre_last_created_fid) <=
LUSTRE_DATA_SEQ_MAX_WIDTH);
d->opd_pre_used_fid = d->opd_pre_last_created_fid;
d->opd_pre_grow_slow = 0;
spin_unlock(&d->opd_pre_lock);
CDEBUG(D_HA, "%s: Got last_id "DFID" from OST, last_created "DFID
"last_used is "DFID"\n", d->opd_obd->obd_name, PFID(last_fid),
PFID(&d->opd_pre_last_created_fid), PFID(&d->opd_last_used_fid));
out:
if (req)
ptlrpc_req_finished(req);
spin_lock(&d->opd_pre_lock);
d->opd_pre_recovering = 0;
spin_unlock(&d->opd_pre_lock);
/*
* If rc is zero, the pre-creation window should have been emptied.
* Since waking up the herd would be useless without pre-created
* objects, we defer the signal to osp_precreate_send() in that case.
*/
if (rc != 0) {
if (update_status) {
CERROR("%s: cannot cleanup orphans: rc = %d\n",
d->opd_obd->obd_name, rc);
/* we can't proceed from here, OST seem to
* be in a bad shape, better to wait for
* a new instance of the server and repeat
* from the beginning. notify possible waiters
* this OSP isn't quite functional yet */
osp_pre_update_status(d, rc);
} else {
wake_up(&d->opd_pre_user_waitq);
}
}
RETURN(rc);
}
static int seq_client_rpc(struct lu_client_seq *seq,
struct lu_seq_range *output, __u32 opc,
const char *opcname)
{
struct obd_export *exp = seq->lcs_exp;
struct ptlrpc_request *req;
struct lu_seq_range *out, *in;
__u32 *op;
unsigned int debug_mask;
int rc;
ENTRY;
LASSERT(exp != NULL && !IS_ERR(exp));
req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_SEQ_QUERY,
LUSTRE_MDS_VERSION, SEQ_QUERY);
if (req == NULL)
RETURN(-ENOMEM);
/* Init operation code */
op = req_capsule_client_get(&req->rq_pill, &RMF_SEQ_OPC);
*op = opc;
/* Zero out input range, this is not recovery yet. */
in = req_capsule_client_get(&req->rq_pill, &RMF_SEQ_RANGE);
lu_seq_range_init(in);
ptlrpc_request_set_replen(req);
in->lsr_index = seq->lcs_space.lsr_index;
if (seq->lcs_type == LUSTRE_SEQ_METADATA)
fld_range_set_mdt(in);
else
fld_range_set_ost(in);
if (opc == SEQ_ALLOC_SUPER) {
req->rq_request_portal = SEQ_CONTROLLER_PORTAL;
req->rq_reply_portal = MDC_REPLY_PORTAL;
/* During allocating super sequence for data object,
* the current thread might hold the export of MDT0(MDT0
* precreating objects on this OST), and it will send the
* request to MDT0 here, so we can not keep resending the
* request here, otherwise if MDT0 is failed(umounted),
* it can not release the export of MDT0 */
if (seq->lcs_type == LUSTRE_SEQ_DATA)
req->rq_no_delay = req->rq_no_resend = 1;
debug_mask = D_CONSOLE;
} else {
if (seq->lcs_type == LUSTRE_SEQ_METADATA) {
req->rq_reply_portal = MDC_REPLY_PORTAL;
req->rq_request_portal = SEQ_METADATA_PORTAL;
} else {
req->rq_reply_portal = OSC_REPLY_PORTAL;
req->rq_request_portal = SEQ_DATA_PORTAL;
}
debug_mask = D_INFO;
}
/* Allow seq client RPC during recovery time. */
req->rq_allow_replay = 1;
ptlrpc_at_set_req_timeout(req);
rc = ptlrpc_queue_wait(req);
if (rc)
GOTO(out_req, rc);
out = req_capsule_server_get(&req->rq_pill, &RMF_SEQ_RANGE);
*output = *out;
if (!lu_seq_range_is_sane(output)) {
CERROR("%s: Invalid range received from server: "
DRANGE"\n", seq->lcs_name, PRANGE(output));
GOTO(out_req, rc = -EINVAL);
}
if (lu_seq_range_is_exhausted(output)) {
CERROR("%s: Range received from server is exhausted: "
DRANGE"]\n", seq->lcs_name, PRANGE(output));
GOTO(out_req, rc = -EINVAL);
}
CDEBUG_LIMIT(debug_mask, "%s: Allocated %s-sequence "DRANGE"]\n",
seq->lcs_name, opcname, PRANGE(output));
EXIT;
out_req:
ptlrpc_req_finished(req);
return rc;
}
static int osp_precreate_send(const struct lu_env *env, struct osp_device *d)
{
struct osp_thread_info *oti = osp_env_info(env);
struct ptlrpc_request *req;
struct obd_import *imp;
struct ost_body *body;
int rc, grow, diff;
struct lu_fid *fid = &oti->osi_fid;
ENTRY;
/* don't precreate new objects till OST healthy and has free space */
if (unlikely(d->opd_pre_status)) {
CDEBUG(D_INFO, "%s: don't send new precreate: rc = %d\n",
d->opd_obd->obd_name, d->opd_pre_status);
RETURN(0);
}
/*
* if not connection/initialization is compeleted, ignore
*/
imp = d->opd_obd->u.cli.cl_import;
LASSERT(imp);
req = ptlrpc_request_alloc(imp, &RQF_OST_CREATE);
if (req == NULL)
RETURN(-ENOMEM);
req->rq_request_portal = OST_CREATE_PORTAL;
/* we should not resend create request - anyway we will have delorphan
* and kill these objects */
req->rq_no_delay = req->rq_no_resend = 1;
rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_CREATE);
if (rc) {
ptlrpc_request_free(req);
RETURN(rc);
}
spin_lock(&d->opd_pre_lock);
if (d->opd_pre_grow_count > d->opd_pre_max_grow_count / 2)
d->opd_pre_grow_count = d->opd_pre_max_grow_count / 2;
grow = d->opd_pre_grow_count;
spin_unlock(&d->opd_pre_lock);
body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
LASSERT(body);
*fid = d->opd_pre_last_created_fid;
rc = osp_precreate_fids(env, d, fid, &grow);
if (rc == 1) {
/* Current seq has been used up*/
if (!osp_is_fid_client(d)) {
osp_pre_update_status(d, -ENOSPC);
rc = -ENOSPC;
}
wake_up(&d->opd_pre_waitq);
GOTO(out_req, rc);
}
if (!osp_is_fid_client(d)) {
/* Non-FID client will always send seq 0 because of
* compatiblity */
LASSERTF(fid_is_idif(fid), "Invalid fid "DFID"\n", PFID(fid));
fid->f_seq = 0;
}
fid_to_ostid(fid, &body->oa.o_oi);
body->oa.o_valid = OBD_MD_FLGROUP;
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
if (rc) {
CERROR("%s: can't precreate: rc = %d\n", d->opd_obd->obd_name,
rc);
GOTO(out_req, rc);
}
LASSERT(req->rq_transno == 0);
body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
if (body == NULL)
GOTO(out_req, rc = -EPROTO);
ostid_to_fid(fid, &body->oa.o_oi, d->opd_index);
LASSERTF(lu_fid_diff(fid, &d->opd_pre_used_fid) > 0,
"reply fid "DFID" pre used fid "DFID"\n", PFID(fid),
PFID(&d->opd_pre_used_fid));
diff = lu_fid_diff(fid, &d->opd_pre_last_created_fid);
spin_lock(&d->opd_pre_lock);
if (diff < grow) {
/* the OST has not managed to create all the
* objects we asked for */
d->opd_pre_grow_count = max(diff, OST_MIN_PRECREATE);
d->opd_pre_grow_slow = 1;
} else {
/* the OST is able to keep up with the work,
* we could consider increasing grow_count
* next time if needed */
d->opd_pre_grow_slow = 0;
}
d->opd_pre_last_created_fid = *fid;
spin_unlock(&d->opd_pre_lock);
CDEBUG(D_HA, "%s: current precreated pool: "DFID"-"DFID"\n",
d->opd_obd->obd_name, PFID(&d->opd_pre_used_fid),
PFID(&d->opd_pre_last_created_fid));
out_req:
/* now we can wakeup all users awaiting for objects */
osp_pre_update_status(d, rc);
wake_up(&d->opd_pre_user_waitq);
ptlrpc_req_finished(req);
RETURN(rc);
}
static int osp_get_lastfid_from_ost(const struct lu_env *env,
struct osp_device *d)
{
struct ptlrpc_request *req = NULL;
struct obd_import *imp;
struct lu_fid *last_fid;
char *tmp;
int rc;
ENTRY;
imp = d->opd_obd->u.cli.cl_import;
LASSERT(imp);
req = ptlrpc_request_alloc(imp, &RQF_OST_GET_INFO_LAST_FID);
if (req == NULL)
RETURN(-ENOMEM);
req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_KEY, RCL_CLIENT,
sizeof(KEY_LAST_FID));
rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_GET_INFO);
if (rc) {
ptlrpc_request_free(req);
RETURN(rc);
}
tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_KEY);
memcpy(tmp, KEY_LAST_FID, sizeof(KEY_LAST_FID));
req->rq_no_delay = req->rq_no_resend = 1;
last_fid = req_capsule_client_get(&req->rq_pill, &RMF_FID);
fid_cpu_to_le(last_fid, &d->opd_last_used_fid);
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
if (rc) {
/* bad-bad OST.. let sysadm sort this out */
if (rc == -ENOTSUPP) {
CERROR("%s: server does not support FID: rc = %d\n",
d->opd_obd->obd_name, -ENOTSUPP);
}
ptlrpc_set_import_active(imp, 0);
GOTO(out, rc);
}
last_fid = req_capsule_server_get(&req->rq_pill, &RMF_FID);
if (last_fid == NULL) {
CERROR("%s: Got last_fid failed.\n", d->opd_obd->obd_name);
GOTO(out, rc = -EPROTO);
}
if (!fid_is_sane(last_fid)) {
CERROR("%s: Got insane last_fid "DFID"\n",
d->opd_obd->obd_name, PFID(last_fid));
GOTO(out, rc = -EPROTO);
}
/* Only update the last used fid, if the OST has objects for
* this sequence, i.e. fid_oid > 0 */
if (fid_oid(last_fid) > 0)
d->opd_last_used_fid = *last_fid;
CDEBUG(D_HA, "%s: Got last_fid "DFID"\n", d->opd_obd->obd_name,
PFID(last_fid));
out:
ptlrpc_req_finished(req);
RETURN(rc);
}
static int seq_client_rpc(struct lu_client_seq *seq,
struct lu_seq_range *output, __u32 opc,
const char *opcname)
{
struct obd_export *exp = seq->lcs_exp;
struct ptlrpc_request *req;
struct lu_seq_range *out, *in;
__u32 *op;
int rc;
ENTRY;
req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_SEQ_QUERY,
LUSTRE_MDS_VERSION, SEQ_QUERY);
if (req == NULL)
RETURN(-ENOMEM);
/* Init operation code */
op = req_capsule_client_get(&req->rq_pill, &RMF_SEQ_OPC);
*op = opc;
/* Zero out input range, this is not recovery yet. */
in = req_capsule_client_get(&req->rq_pill, &RMF_SEQ_RANGE);
range_init(in);
ptlrpc_request_set_replen(req);
if (seq->lcs_type == LUSTRE_SEQ_METADATA) {
req->rq_request_portal = SEQ_METADATA_PORTAL;
in->lsr_flags = LU_SEQ_RANGE_MDT;
} else {
LASSERTF(seq->lcs_type == LUSTRE_SEQ_DATA,
"unknown lcs_type %u\n", seq->lcs_type);
req->rq_request_portal = SEQ_DATA_PORTAL;
in->lsr_flags = LU_SEQ_RANGE_OST;
}
if (opc == SEQ_ALLOC_SUPER) {
/* Update index field of *in, it is required for
* FLD update on super sequence allocator node. */
in->lsr_index = seq->lcs_space.lsr_index;
req->rq_request_portal = SEQ_CONTROLLER_PORTAL;
} else {
LASSERTF(opc == SEQ_ALLOC_META,
"unknown opcode %u\n, opc", opc);
}
ptlrpc_at_set_req_timeout(req);
mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
rc = ptlrpc_queue_wait(req);
mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
if (rc)
GOTO(out_req, rc);
out = req_capsule_server_get(&req->rq_pill, &RMF_SEQ_RANGE);
*output = *out;
if (!range_is_sane(output)) {
CERROR("%s: Invalid range received from server: "
DRANGE"\n", seq->lcs_name, PRANGE(output));
GOTO(out_req, rc = -EINVAL);
}
if (range_is_exhausted(output)) {
CERROR("%s: Range received from server is exhausted: "
DRANGE"]\n", seq->lcs_name, PRANGE(output));
GOTO(out_req, rc = -EINVAL);
}
CDEBUG(D_INFO, "%s: Allocated %s-sequence "DRANGE"]\n",
seq->lcs_name, opcname, PRANGE(output));
EXIT;
out_req:
ptlrpc_req_finished(req);
return rc;
}
int osp_object_truncate(const struct lu_env *env, struct dt_object *dt,
__u64 size)
{
struct osp_device *d = lu2osp_dev(dt->do_lu.lo_dev);
struct ptlrpc_request *req = NULL;
struct obd_import *imp;
struct ost_body *body;
struct obdo *oa = NULL;
int rc;
ENTRY;
imp = d->opd_obd->u.cli.cl_import;
LASSERT(imp);
req = ptlrpc_request_alloc(imp, &RQF_OST_PUNCH);
if (req == NULL)
RETURN(-ENOMEM);
/* XXX: capa support? */
/* osc_set_capa_size(req, &RMF_CAPA1, capa); */
rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_PUNCH);
if (rc) {
ptlrpc_request_free(req);
RETURN(rc);
}
/*
* XXX: decide how do we do here with resend
* if we don't resend, then client may see wrong file size
* if we do resend, then MDS thread can get stuck for quite long
*/
req->rq_no_resend = req->rq_no_delay = 1;
req->rq_request_portal = OST_IO_PORTAL; /* bug 7198 */
ptlrpc_at_set_req_timeout(req);
OBD_ALLOC_PTR(oa);
if (oa == NULL)
GOTO(out, rc = -ENOMEM);
rc = fid_to_ostid(lu_object_fid(&dt->do_lu), &oa->o_oi);
LASSERT(rc == 0);
oa->o_size = size;
oa->o_blocks = OBD_OBJECT_EOF;
oa->o_valid = OBD_MD_FLSIZE | OBD_MD_FLBLOCKS |
OBD_MD_FLID | OBD_MD_FLGROUP;
body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
LASSERT(body);
lustre_set_wire_obdo(&req->rq_import->imp_connect_data, &body->oa, oa);
/* XXX: capa support? */
/* osc_pack_capa(req, body, capa); */
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
if (rc)
CERROR("can't punch object: %d\n", rc);
out:
ptlrpc_req_finished(req);
if (oa)
OBD_FREE_PTR(oa);
RETURN(rc);
}
static int osc_object_fiemap(const struct lu_env *env, struct cl_object *obj,
struct ll_fiemap_info_key *fmkey,
struct fiemap *fiemap, size_t *buflen)
{
struct obd_export *exp = osc_export(cl2osc(obj));
struct ldlm_res_id resid;
union ldlm_policy_data policy;
struct lustre_handle lockh;
enum ldlm_mode mode = LCK_MINMODE;
struct ptlrpc_request *req;
struct fiemap *reply;
char *tmp;
int rc;
ENTRY;
fmkey->lfik_oa.o_oi = cl2osc(obj)->oo_oinfo->loi_oi;
if (!(fmkey->lfik_fiemap.fm_flags & FIEMAP_FLAG_SYNC))
goto skip_locking;
policy.l_extent.start = fmkey->lfik_fiemap.fm_start & PAGE_MASK;
if (OBD_OBJECT_EOF - fmkey->lfik_fiemap.fm_length <=
fmkey->lfik_fiemap.fm_start + PAGE_SIZE - 1)
policy.l_extent.end = OBD_OBJECT_EOF;
else
policy.l_extent.end = (fmkey->lfik_fiemap.fm_start +
fmkey->lfik_fiemap.fm_length +
PAGE_SIZE - 1) & PAGE_MASK;
ostid_build_res_name(&fmkey->lfik_oa.o_oi, &resid);
mode = ldlm_lock_match(exp->exp_obd->obd_namespace,
LDLM_FL_BLOCK_GRANTED | LDLM_FL_LVB_READY,
&resid, LDLM_EXTENT, &policy,
LCK_PR | LCK_PW, &lockh, 0);
if (mode) { /* lock is cached on client */
if (mode != LCK_PR) {
ldlm_lock_addref(&lockh, LCK_PR);
ldlm_lock_decref(&lockh, LCK_PW);
}
} else { /* no cached lock, needs acquire lock on server side */
fmkey->lfik_oa.o_valid |= OBD_MD_FLFLAGS;
fmkey->lfik_oa.o_flags |= OBD_FL_SRVLOCK;
}
skip_locking:
req = ptlrpc_request_alloc(class_exp2cliimp(exp),
&RQF_OST_GET_INFO_FIEMAP);
if (req == NULL)
GOTO(drop_lock, rc = -ENOMEM);
req_capsule_set_size(&req->rq_pill, &RMF_FIEMAP_KEY, RCL_CLIENT,
sizeof(*fmkey));
req_capsule_set_size(&req->rq_pill, &RMF_FIEMAP_VAL, RCL_CLIENT,
*buflen);
req_capsule_set_size(&req->rq_pill, &RMF_FIEMAP_VAL, RCL_SERVER,
*buflen);
rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_GET_INFO);
if (rc != 0) {
ptlrpc_request_free(req);
GOTO(drop_lock, rc);
}
tmp = req_capsule_client_get(&req->rq_pill, &RMF_FIEMAP_KEY);
memcpy(tmp, fmkey, sizeof(*fmkey));
tmp = req_capsule_client_get(&req->rq_pill, &RMF_FIEMAP_VAL);
memcpy(tmp, fiemap, *buflen);
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
if (rc != 0)
GOTO(fini_req, rc);
reply = req_capsule_server_get(&req->rq_pill, &RMF_FIEMAP_VAL);
if (reply == NULL)
GOTO(fini_req, rc = -EPROTO);
memcpy(fiemap, reply, *buflen);
fini_req:
ptlrpc_req_finished(req);
drop_lock:
if (mode)
ldlm_lock_decref(&lockh, LCK_PR);
RETURN(rc);
}
static ssize_t osp_md_read(const struct lu_env *env, struct dt_object *dt,
struct lu_buf *rbuf, loff_t *pos)
{
struct osp_device *osp = lu2osp_dev(dt->do_lu.lo_dev);
struct dt_device *dt_dev = &osp->opd_dt_dev;
struct lu_buf *lbuf = &osp_env_info(env)->osi_lb2;
char *ptr = rbuf->lb_buf;
struct osp_update_request *update;
struct ptlrpc_request *req = NULL;
struct out_read_reply *orr;
struct ptlrpc_bulk_desc *desc;
struct object_update_reply *reply;
__u32 left_size;
int nbufs;
int i;
int rc;
ENTRY;
/* Because it needs send the update buffer right away,
* just create an update buffer, instead of attaching the
* update_remote list of the thandle. */
update = osp_update_request_create(dt_dev);
if (IS_ERR(update))
RETURN(PTR_ERR(update));
rc = osp_update_rpc_pack(env, read, update, OUT_READ,
lu_object_fid(&dt->do_lu),
rbuf->lb_len, *pos);
if (rc != 0) {
CERROR("%s: cannot insert update: rc = %d\n",
dt_dev->dd_lu_dev.ld_obd->obd_name, rc);
GOTO(out_update, rc);
}
CDEBUG(D_INFO, "%s "DFID" read offset %llu size %zu\n",
dt_dev->dd_lu_dev.ld_obd->obd_name,
PFID(lu_object_fid(&dt->do_lu)), *pos, rbuf->lb_len);
rc = osp_prep_update_req(env, osp->opd_obd->u.cli.cl_import, update,
&req);
if (rc != 0)
GOTO(out_update, rc);
nbufs = (rbuf->lb_len + OUT_BULK_BUFFER_SIZE - 1) /
OUT_BULK_BUFFER_SIZE;
/* allocate bulk descriptor */
desc = ptlrpc_prep_bulk_imp(req, nbufs, 1,
PTLRPC_BULK_PUT_SINK | PTLRPC_BULK_BUF_KVEC,
MDS_BULK_PORTAL, &ptlrpc_bulk_kvec_ops);
if (desc == NULL)
GOTO(out, rc = -ENOMEM);
/* split the buffer into small chunk size */
left_size = rbuf->lb_len;
for (i = 0; i < nbufs; i++) {
int read_size;
read_size = left_size > OUT_BULK_BUFFER_SIZE ?
OUT_BULK_BUFFER_SIZE : left_size;
desc->bd_frag_ops->add_iov_frag(desc, ptr, read_size);
ptr += read_size;
}
/* This will only be called with read-only update, and these updates
* might be used to retrieve update log during recovery process, so
* it will be allowed to send during recovery process */
req->rq_allow_replay = 1;
req->rq_bulk_read = 1;
/* send request to master and wait for RPC to complete */
rc = ptlrpc_queue_wait(req);
if (rc != 0)
GOTO(out, rc);
rc = sptlrpc_cli_unwrap_bulk_read(req, req->rq_bulk,
req->rq_bulk->bd_nob_transferred);
if (rc < 0)
GOTO(out, rc);
reply = req_capsule_server_sized_get(&req->rq_pill,
&RMF_OUT_UPDATE_REPLY,
OUT_UPDATE_REPLY_SIZE);
if (reply->ourp_magic != UPDATE_REPLY_MAGIC) {
CERROR("%s: invalid update reply magic %x expected %x:"
" rc = %d\n", dt_dev->dd_lu_dev.ld_obd->obd_name,
reply->ourp_magic, UPDATE_REPLY_MAGIC, -EPROTO);
GOTO(out, rc = -EPROTO);
}
rc = object_update_result_data_get(reply, lbuf, 0);
if (rc < 0)
GOTO(out, rc);
if (lbuf->lb_len < sizeof(*orr))
GOTO(out, rc = -EPROTO);
orr = lbuf->lb_buf;
orr_le_to_cpu(orr, orr);
rc = orr->orr_size;
*pos = orr->orr_offset;
out:
ptlrpc_req_finished(req);
out_update:
osp_update_request_destroy(update);
RETURN(rc);
}
int gss_do_ctx_init_rpc(__user char *buffer, unsigned long count)
{
struct obd_import *imp;
struct ptlrpc_request *req;
struct lgssd_ioctl_param param;
struct obd_device *obd;
char obdname[64];
long lsize;
int rc;
if (count != sizeof(param)) {
CERROR("ioctl size %lu, expect %lu, please check lgss_keyring "
"version\n", count, (unsigned long) sizeof(param));
RETURN(-EINVAL);
}
if (copy_from_user(¶m, buffer, sizeof(param))) {
CERROR("failed copy data from lgssd\n");
RETURN(-EFAULT);
}
if (param.version != GSSD_INTERFACE_VERSION) {
CERROR("gssd interface version %d (expect %d)\n",
param.version, GSSD_INTERFACE_VERSION);
RETURN(-EINVAL);
}
/* take name */
if (strncpy_from_user(obdname, param.uuid, sizeof(obdname)) <= 0) {
CERROR("Invalid obdname pointer\n");
RETURN(-EFAULT);
}
obd = class_name2obd(obdname);
if (!obd) {
CERROR("no such obd %s\n", obdname);
RETURN(-EINVAL);
}
if (unlikely(!obd->obd_set_up)) {
CERROR("obd %s not setup\n", obdname);
RETURN(-EINVAL);
}
spin_lock(&obd->obd_dev_lock);
if (obd->obd_stopping) {
CERROR("obd %s has stopped\n", obdname);
spin_unlock(&obd->obd_dev_lock);
RETURN(-EINVAL);
}
if (strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) &&
strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME) &&
strcmp(obd->obd_type->typ_name, LUSTRE_MGC_NAME)) {
CERROR("obd %s is not a client device\n", obdname);
spin_unlock(&obd->obd_dev_lock);
RETURN(-EINVAL);
}
spin_unlock(&obd->obd_dev_lock);
down_read(&obd->u.cli.cl_sem);
if (obd->u.cli.cl_import == NULL) {
CERROR("obd %s: import has gone\n", obd->obd_name);
up_read(&obd->u.cli.cl_sem);
RETURN(-EINVAL);
}
imp = class_import_get(obd->u.cli.cl_import);
up_read(&obd->u.cli.cl_sem);
if (imp->imp_deactive) {
CERROR("import has been deactivated\n");
class_import_put(imp);
RETURN(-EINVAL);
}
req = ptlrpc_request_alloc_pack(imp, &RQF_SEC_CTX, LUSTRE_OBD_VERSION,
SEC_CTX_INIT);
if (req == NULL) {
param.status = -ENOMEM;
goto out_copy;
}
if (req->rq_cli_ctx->cc_sec->ps_id != param.secid) {
CWARN("original secid %d, now has changed to %d, "
"cancel this negotiation\n", param.secid,
req->rq_cli_ctx->cc_sec->ps_id);
param.status = -EINVAL;
goto out_copy;
}
/* get token */
rc = ctx_init_pack_request(imp, req,
param.lustre_svc,
param.uid, param.gid,
param.send_token_size,
param.send_token);
if (rc) {
param.status = rc;
goto out_copy;
}
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
if (rc) {
/* If any _real_ denial be made, we expect server return
* -EACCES reply or return success but indicate gss error
* inside reply messsage. All other errors are treated as
* timeout, caller might try the negotiation repeatedly,
* leave recovery decisions to general ptlrpc layer.
*
* FIXME maybe some other error code shouldn't be treated
* as timeout. */
param.status = rc;
if (rc != -EACCES)
param.status = -ETIMEDOUT;
goto out_copy;
}
LASSERT(req->rq_repdata);
lsize = ctx_init_parse_reply(req->rq_repdata,
ptlrpc_rep_need_swab(req),
param.reply_buf, param.reply_buf_size);
if (lsize < 0) {
param.status = (int) lsize;
goto out_copy;
}
param.status = 0;
param.reply_length = lsize;
out_copy:
if (copy_to_user(buffer, ¶m, sizeof(param)))
rc = -EFAULT;
else
rc = 0;
class_import_put(imp);
ptlrpc_req_finished(req);
RETURN(rc);
}
/* This is a callback from the llog_* functions.
* Assumes caller has already pushed us into the kernel context.
*/
static int llog_client_open(const struct lu_env *env,
struct llog_handle *lgh, struct llog_logid *logid,
char *name, enum llog_open_param open_param)
{
struct obd_import *imp;
struct llogd_body *body;
struct llog_ctxt *ctxt = lgh->lgh_ctxt;
struct ptlrpc_request *req = NULL;
int rc;
LLOG_CLIENT_ENTRY(ctxt, imp);
/* client cannot create llog */
LASSERTF(open_param != LLOG_OPEN_NEW, "%#x\n", open_param);
LASSERT(lgh);
req = ptlrpc_request_alloc(imp, &RQF_LLOG_ORIGIN_HANDLE_CREATE);
if (!req) {
rc = -ENOMEM;
goto out;
}
if (name)
req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
strlen(name) + 1);
rc = ptlrpc_request_pack(req, LUSTRE_LOG_VERSION,
LLOG_ORIGIN_HANDLE_CREATE);
if (rc) {
ptlrpc_request_free(req);
req = NULL;
goto out;
}
ptlrpc_request_set_replen(req);
body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (logid)
body->lgd_logid = *logid;
body->lgd_ctxt_idx = ctxt->loc_idx - 1;
if (name) {
char *tmp;
tmp = req_capsule_client_sized_get(&req->rq_pill, &RMF_NAME,
strlen(name) + 1);
LASSERT(tmp);
strcpy(tmp, name);
}
rc = ptlrpc_queue_wait(req);
if (rc)
goto out;
body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
if (!body) {
rc = -EFAULT;
goto out;
}
lgh->lgh_id = body->lgd_logid;
lgh->lgh_ctxt = ctxt;
out:
LLOG_CLIENT_EXIT(ctxt, imp);
ptlrpc_req_finished(req);
return rc;
}
/*
* Get intent per-ID lock or global-index lock from master.
*
* \param env - the environment passed by the caller
* \param exp - is the export to use to send the intent RPC
* \param qbody - quota body to be packed in request
* \param sync - synchronous or asynchronous (pre-acquire)
* \param it_op - IT_QUOTA_DQACQ or IT_QUOTA_CONN
* \param completion - completion callback
* \param qqi - is the qsd_qtype_info structure to pass to the completion
* function
* \param lvb - is the lvb associated with the lock and returned by the
* server
* \param arg - is an opaq argument passed to the completion callback
*
* \retval 0 - success
* \retval -ve - appropriate errors
*/
int qsd_intent_lock(const struct lu_env *env, struct obd_export *exp,
struct quota_body *qbody, bool sync, int it_op,
qsd_req_completion_t completion, struct qsd_qtype_info *qqi,
struct lquota_lvb *lvb, void *arg)
{
struct qsd_thread_info *qti = qsd_info(env);
struct ptlrpc_request *req;
struct qsd_async_args *aa = NULL;
struct ldlm_intent *lit;
struct quota_body *req_qbody;
__u64 flags = LDLM_FL_HAS_INTENT;
int rc;
ENTRY;
LASSERT(exp != NULL);
LASSERT(!lustre_handle_is_used(&qbody->qb_lockh));
memset(&qti->qti_lockh, 0, sizeof(qti->qti_lockh));
req = ptlrpc_request_alloc(class_exp2cliimp(exp),
&RQF_LDLM_INTENT_QUOTA);
if (req == NULL)
GOTO(out, rc = -ENOMEM);
req->rq_no_retry_einprogress = 1;
rc = ldlm_prep_enqueue_req(exp, req, NULL, 0);
if (rc) {
ptlrpc_request_free(req);
GOTO(out, rc);
}
lit = req_capsule_client_get(&req->rq_pill, &RMF_LDLM_INTENT);
lit->opc = (__u64)it_op;
req_qbody = req_capsule_client_get(&req->rq_pill, &RMF_QUOTA_BODY);
*req_qbody = *qbody;
req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER,
sizeof(*lvb));
ptlrpc_request_set_replen(req);
switch(it_op) {
case IT_QUOTA_CONN:
/* build resource name associated with global index */
fid_build_reg_res_name(&qbody->qb_fid, &qti->qti_resid);
/* copy einfo template and fill ei_cbdata with qqi pointer */
memcpy(&qti->qti_einfo, &qsd_glb_einfo, sizeof(qti->qti_einfo));
qti->qti_einfo.ei_cbdata = qqi;
/* don't cancel global lock on memory pressure */
flags |= LDLM_FL_NO_LRU;
break;
case IT_QUOTA_DQACQ:
/* build resource name associated for per-ID quota lock */
fid_build_quota_res_name(&qbody->qb_fid, &qbody->qb_id,
&qti->qti_resid);
/* copy einfo template and fill ei_cbdata with lqe pointer */
memcpy(&qti->qti_einfo, &qsd_id_einfo, sizeof(qti->qti_einfo));
qti->qti_einfo.ei_cbdata = arg;
break;
default:
LASSERTF(0, "invalid it_op %d", it_op);
}
/* build lock enqueue request */
rc = ldlm_cli_enqueue(exp, &req, &qti->qti_einfo, &qti->qti_resid, NULL,
&flags, (void *)lvb, sizeof(*lvb), LVB_T_LQUOTA,
&qti->qti_lockh, 1);
if (rc < 0) {
ptlrpc_req_finished(req);
GOTO(out, rc);
}
/* grab reference on backend structure for the new lock */
switch(it_op) {
case IT_QUOTA_CONN:
/* grab reference on qqi for new lock */
#ifdef USE_LU_REF
{
struct ldlm_lock *lock;
lock = ldlm_handle2lock(&qti->qti_lockh);
if (lock == NULL) {
ptlrpc_req_finished(req);
GOTO(out, rc = -ENOLCK);
}
lu_ref_add(&qqi->qqi_reference, "glb_lock", lock);
LDLM_LOCK_PUT(lock);
}
#endif
qqi_getref(qqi);
break;
case IT_QUOTA_DQACQ:
/* grab reference on lqe for new lock */
lqe_getref((struct lquota_entry *)arg);
/* all acquire/release request are sent with no_resend and
* no_delay flag */
req->rq_no_resend = req->rq_no_delay = 1;
break;
default:
break;
}
CLASSERT(sizeof(*aa) <= sizeof(req->rq_async_args));
aa = ptlrpc_req_async_args(req);
aa->aa_exp = exp;
aa->aa_qqi = qqi;
aa->aa_arg = arg;
aa->aa_lvb = lvb;
aa->aa_completion = completion;
lustre_handle_copy(&aa->aa_lockh, &qti->qti_lockh);
if (sync) {
/* send lock enqueue request and wait for completion */
rc = ptlrpc_queue_wait(req);
rc = qsd_intent_interpret(env, req, aa, rc);
ptlrpc_req_finished(req);
} else {
/* queue lock request and return */
req->rq_interpret_reply = qsd_intent_interpret;
ptlrpcd_add_req(req, PDL_POLICY_LOCAL, -1);
}
RETURN(rc);
out:
completion(env, qqi, qbody, NULL, &qti->qti_lockh, lvb, arg, rc);
return rc;
}
