* Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* -ENOTCONN: The UUID is found, but the target connection is bad (!)
* -EBADF : The UUID is found, but the OBD of the wrong type (!)
*/
-static int lmv_set_mdc_active(struct lmv_obd *lmv, struct obd_uuid *uuid,
- int activate)
-{
- struct lmv_tgt_desc *tgt;
- struct obd_device *obd;
- int i;
- int rc = 0;
- ENTRY;
+static int lmv_set_mdc_active(struct lmv_obd *lmv,
+ const struct obd_uuid *uuid,
+ int activate)
+{
+ struct lmv_tgt_desc *tgt = NULL;
+ struct obd_device *obd;
+ __u32 i;
+ int rc = 0;
+ ENTRY;
- CDEBUG(D_INFO, "Searching in lmv %p for uuid %s (activate=%d)\n",
- lmv, uuid->uuid, activate);
+ CDEBUG(D_INFO, "Searching in lmv %p for uuid %s (activate=%d)\n",
+ lmv, uuid->uuid, activate);
spin_lock(&lmv->lmv_lock);
for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
struct obd_uuid *lmv_get_uuid(struct obd_export *exp)
{
- struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
+ struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
+ struct lmv_tgt_desc *tgt = lmv->tgts[0];
- return obd_get_uuid(lmv->tgts[0]->ltd_exp);
+ return (tgt == NULL) ? NULL : obd_get_uuid(tgt->ltd_exp);
}
static int lmv_notify(struct obd_device *obd, struct obd_device *watched,
* and MDC stuff will be called directly, for instance while reading
* ../mdc/../kbytesfree procfs file, etc.
*/
- if (data->ocd_connect_flags & OBD_CONNECT_REAL)
+ if (data != NULL && (data->ocd_connect_flags & OBD_CONNECT_REAL))
rc = lmv_check_connect(obd);
#ifdef __KERNEL__
static void lmv_set_timeouts(struct obd_device *obd)
{
- struct lmv_tgt_desc *tgt;
- struct lmv_obd *lmv;
- int i;
+ struct lmv_obd *lmv;
+ __u32 i;
lmv = &obd->u.lmv;
if (lmv->server_timeout == 0)
return;
for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- tgt = lmv->tgts[i];
- if (tgt == NULL || tgt->ltd_exp == NULL || tgt->ltd_active == 0)
+ struct lmv_tgt_desc *tgt = lmv->tgts[i];
+
+ if (tgt == NULL || tgt->ltd_exp == NULL || !tgt->ltd_active)
continue;
obd_set_info_async(NULL, tgt->ltd_exp, sizeof(KEY_INTERMDS),
static int lmv_init_ea_size(struct obd_export *exp, int easize,
int def_easize, int cookiesize)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- int i;
- int rc = 0;
- int change = 0;
- ENTRY;
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ __u32 i;
+ int rc = 0;
+ int change = 0;
+ ENTRY;
if (lmv->max_easize < easize) {
lmv->max_easize = easize;
RETURN(0);
for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- if (lmv->tgts[i] == NULL ||
- lmv->tgts[i]->ltd_exp == NULL ||
- lmv->tgts[i]->ltd_active == 0) {
+ struct lmv_tgt_desc *tgt = lmv->tgts[i];
+
+ if (tgt == NULL || tgt->ltd_exp == NULL || !tgt->ltd_active) {
CWARN("%s: NULL export for %d\n", obd->obd_name, i);
continue;
}
- rc = md_init_ea_size(lmv->tgts[i]->ltd_exp, easize, def_easize,
+ rc = md_init_ea_size(tgt->ltd_exp, easize, def_easize,
cookiesize);
if (rc) {
CERROR("%s: obd_init_ea_size() failed on MDT target %d:"
int lmv_check_connect(struct obd_device *obd)
{
- struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_tgt_desc *tgt;
- int i;
- int rc;
- int easize;
- ENTRY;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
+ __u32 i;
+ int rc;
+ int easize;
+ ENTRY;
if (lmv->connected)
RETURN(0);
RETURN(-EINVAL);
}
- CDEBUG(D_CONFIG, "Time to connect %s to %s\n",
- lmv->cluuid.uuid, obd->obd_name);
-
LASSERT(lmv->tgts != NULL);
+ if (lmv->tgts[0] == NULL) {
+ lmv_init_unlock(lmv);
+ CERROR("%s: no target configured for index 0.\n",
+ obd->obd_name);
+ RETURN(-EINVAL);
+ }
+
+ CDEBUG(D_CONFIG, "Time to connect %s to %s\n",
+ lmv->cluuid.uuid, obd->obd_name);
+
for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
tgt = lmv->tgts[i];
if (tgt == NULL)
static int lmv_disconnect(struct obd_export *exp)
{
- struct obd_device *obd = class_exp2obd(exp);
+ struct obd_device *obd = class_exp2obd(exp);
#ifdef __KERNEL__
- struct proc_dir_entry *lmv_proc_dir;
+ struct proc_dir_entry *lmv_proc_dir;
#endif
- struct lmv_obd *lmv = &obd->u.lmv;
- int rc;
- int i;
- ENTRY;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ int rc;
+ __u32 i;
+ ENTRY;
if (!lmv->tgts)
goto out_local;
RETURN(rc);
}
+static int lmv_hsm_req_count(struct lmv_obd *lmv,
+ const struct hsm_user_request *hur,
+ const struct lmv_tgt_desc *tgt_mds)
+{
+ __u32 i;
+ int nr = 0;
+ struct lmv_tgt_desc *curr_tgt;
+
+ /* count how many requests must be sent to the given target */
+ for (i = 0; i < hur->hur_request.hr_itemcount; i++) {
+ curr_tgt = lmv_find_target(lmv, &hur->hur_user_item[i].hui_fid);
+ if (obd_uuid_equals(&curr_tgt->ltd_uuid, &tgt_mds->ltd_uuid))
+ nr++;
+ }
+ return nr;
+}
+
+static void lmv_hsm_req_build(struct lmv_obd *lmv,
+ struct hsm_user_request *hur_in,
+ const struct lmv_tgt_desc *tgt_mds,
+ struct hsm_user_request *hur_out)
+{
+ __u32 i, nr_out;
+ struct lmv_tgt_desc *curr_tgt;
+
+ /* build the hsm_user_request for the given target */
+ hur_out->hur_request = hur_in->hur_request;
+ nr_out = 0;
+ for (i = 0; i < hur_in->hur_request.hr_itemcount; i++) {
+ curr_tgt = lmv_find_target(lmv,
+ &hur_in->hur_user_item[i].hui_fid);
+ if (obd_uuid_equals(&curr_tgt->ltd_uuid, &tgt_mds->ltd_uuid)) {
+ hur_out->hur_user_item[nr_out] =
+ hur_in->hur_user_item[i];
+ nr_out++;
+ }
+ }
+ hur_out->hur_request.hr_itemcount = nr_out;
+ memcpy(hur_data(hur_out), hur_data(hur_in),
+ hur_in->hur_request.hr_data_len);
+}
+
+static int lmv_hsm_ct_unregister(struct lmv_obd *lmv, unsigned int cmd, int len,
+ struct lustre_kernelcomm *lk, void *uarg)
+{
+ __u32 i;
+ int rc;
+ struct kkuc_ct_data *kcd = NULL;
+ ENTRY;
+
+ /* unregister request (call from llapi_hsm_copytool_fini) */
+ for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
+ struct lmv_tgt_desc *tgt = lmv->tgts[i];
+
+ if (tgt == NULL || tgt->ltd_exp == NULL)
+ continue;
+ /* best effort: try to clean as much as possible
+ * (continue on error) */
+ obd_iocontrol(cmd, tgt->ltd_exp, len, lk, uarg);
+ }
+
+ /* Whatever the result, remove copytool from kuc groups.
+ * Unreached coordinators will get EPIPE on next requests
+ * and will unregister automatically.
+ */
+ rc = libcfs_kkuc_group_rem(lk->lk_uid, lk->lk_group, (void **)&kcd);
+ if (kcd != NULL)
+ OBD_FREE_PTR(kcd);
+
+ RETURN(rc);
+}
+
+static int lmv_hsm_ct_register(struct lmv_obd *lmv, unsigned int cmd, int len,
+ struct lustre_kernelcomm *lk, void *uarg)
+{
+ struct file *filp;
+ __u32 i, j;
+ int err, rc;
+ bool any_set = false;
+ struct kkuc_ct_data *kcd;
+ ENTRY;
+
+ /* All or nothing: try to register to all MDS.
+ * In case of failure, unregister from previous MDS,
+ * except if it because of inactive target. */
+ for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
+ struct lmv_tgt_desc *tgt = lmv->tgts[i];
+
+ if (tgt == NULL || tgt->ltd_exp == NULL)
+ continue;
+ err = obd_iocontrol(cmd, tgt->ltd_exp, len, lk, uarg);
+ if (err) {
+ if (tgt->ltd_active) {
+ /* permanent error */
+ CERROR("%s: iocontrol MDC %s on MDT"
+ " idx %d cmd %x: err = %d\n",
+ class_exp2obd(lmv->exp)->obd_name,
+ tgt->ltd_uuid.uuid, i, cmd, err);
+ rc = err;
+ lk->lk_flags |= LK_FLG_STOP;
+ /* unregister from previous MDS */
+ for (j = 0; j < i; j++) {
+ tgt = lmv->tgts[j];
+ if (tgt == NULL || tgt->ltd_exp == NULL)
+ continue;
+ obd_iocontrol(cmd, tgt->ltd_exp, len,
+ lk, uarg);
+ }
+ RETURN(rc);
+ }
+ /* else: transient error.
+ * kuc will register to the missing MDT
+ * when it is back */
+ } else {
+ any_set = true;
+ }
+ }
+
+ if (!any_set)
+ /* no registration done: return error */
+ RETURN(-ENOTCONN);
+
+ /* at least one registration done, with no failure */
+ filp = fget(lk->lk_wfd);
+ if (filp == NULL)
+ RETURN(-EBADF);
+
+ OBD_ALLOC_PTR(kcd);
+ if (kcd == NULL) {
+ fput(filp);
+ RETURN(-ENOMEM);
+ }
+ kcd->kcd_magic = KKUC_CT_DATA_MAGIC;
+ kcd->kcd_uuid = lmv->cluuid;
+ kcd->kcd_archive = lk->lk_data;
+
+ rc = libcfs_kkuc_group_add(filp, lk->lk_uid, lk->lk_group, kcd);
+ if (rc != 0) {
+ if (filp != NULL)
+ fput(filp);
+ OBD_FREE_PTR(kcd);
+ }
+
+ RETURN(rc);
+}
+
+
+
+
static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp,
int len, void *karg, void *uarg)
{
- struct obd_device *obddev = class_exp2obd(exp);
- struct lmv_obd *lmv = &obddev->u.lmv;
- int i = 0;
- int rc = 0;
- int set = 0;
- int count = lmv->desc.ld_tgt_count;
- ENTRY;
+ struct obd_device *obddev = class_exp2obd(exp);
+ struct lmv_obd *lmv = &obddev->u.lmv;
+ struct lmv_tgt_desc *tgt = NULL;
+ __u32 i = 0;
+ int rc = 0;
+ int set = 0;
+ __u32 count = lmv->desc.ld_tgt_count;
+ ENTRY;
if (count == 0)
RETURN(-ENOTTY);
if ((index >= count))
RETURN(-ENODEV);
- if (lmv->tgts[index] == NULL ||
- lmv->tgts[index]->ltd_active == 0)
+ tgt = lmv->tgts[index];
+ if (tgt == NULL || !tgt->ltd_active)
RETURN(-ENODATA);
- mdc_obd = class_exp2obd(lmv->tgts[index]->ltd_exp);
+ mdc_obd = class_exp2obd(tgt->ltd_exp);
if (!mdc_obd)
RETURN(-EINVAL);
/* copy UUID */
- if (cfs_copy_to_user(data->ioc_pbuf2, obd2cli_tgt(mdc_obd),
- min((int) data->ioc_plen2,
- (int) sizeof(struct obd_uuid))))
+ if (copy_to_user(data->ioc_pbuf2, obd2cli_tgt(mdc_obd),
+ min((int) data->ioc_plen2,
+ (int) sizeof(struct obd_uuid))))
RETURN(-EFAULT);
- rc = obd_statfs(NULL, lmv->tgts[index]->ltd_exp, &stat_buf,
+ rc = obd_statfs(NULL, tgt->ltd_exp, &stat_buf,
cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
0);
if (rc)
RETURN(rc);
- if (cfs_copy_to_user(data->ioc_pbuf1, &stat_buf,
- min((int) data->ioc_plen1,
- (int) sizeof(stat_buf))))
+ if (copy_to_user(data->ioc_pbuf1, &stat_buf,
+ min((int) data->ioc_plen1,
+ (int) sizeof(stat_buf))))
RETURN(-EFAULT);
break;
}
case OBD_IOC_QUOTACTL: {
struct if_quotactl *qctl = karg;
- struct lmv_tgt_desc *tgt = NULL;
struct obd_quotactl *oqctl;
- if (qctl->qc_valid == QC_MDTIDX) {
- if (qctl->qc_idx < 0 || count <= qctl->qc_idx)
- RETURN(-EINVAL);
+ if (qctl->qc_valid == QC_MDTIDX) {
+ if (count <= qctl->qc_idx)
+ RETURN(-EINVAL);
tgt = lmv->tgts[qctl->qc_idx];
if (tgt == NULL || tgt->ltd_exp == NULL)
if (i >= count)
RETURN(-EAGAIN);
- LASSERT(tgt && tgt->ltd_exp);
+ LASSERT(tgt != NULL && tgt->ltd_exp != NULL);
OBD_ALLOC_PTR(oqctl);
if (!oqctl)
RETURN(-ENOMEM);
if (icc->icc_mdtindex >= count)
RETURN(-ENODEV);
- if (lmv->tgts[icc->icc_mdtindex] == NULL ||
- lmv->tgts[icc->icc_mdtindex]->ltd_exp == NULL ||
- lmv->tgts[icc->icc_mdtindex]->ltd_active == 0)
+ tgt = lmv->tgts[icc->icc_mdtindex];
+ if (tgt == NULL || tgt->ltd_exp == NULL || !tgt->ltd_active)
RETURN(-ENODEV);
- rc = obd_iocontrol(cmd, lmv->tgts[icc->icc_mdtindex]->ltd_exp,
- sizeof(*icc), icc, NULL);
+ rc = obd_iocontrol(cmd, tgt->ltd_exp, sizeof(*icc), icc, NULL);
break;
}
case LL_IOC_GET_CONNECT_FLAGS: {
- if (lmv->tgts[0] == NULL)
+ tgt = lmv->tgts[0];
+ if (tgt == NULL || tgt->ltd_exp == NULL)
RETURN(-ENODATA);
- rc = obd_iocontrol(cmd, lmv->tgts[0]->ltd_exp, len, karg, uarg);
+ rc = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
break;
}
case OBD_IOC_FID2PATH: {
}
case LL_IOC_HSM_STATE_GET:
case LL_IOC_HSM_STATE_SET:
- case LL_IOC_HSM_ACTION:
+ case LL_IOC_HSM_ACTION: {
+ struct md_op_data *op_data = karg;
+
+ tgt = lmv_find_target(lmv, &op_data->op_fid1);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
+
+ if (tgt->ltd_exp == NULL)
+ RETURN(-EINVAL);
+
+ rc = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
+ break;
+ }
+ case LL_IOC_HSM_PROGRESS: {
+ const struct hsm_progress_kernel *hpk = karg;
+
+ tgt = lmv_find_target(lmv, &hpk->hpk_fid);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
+ rc = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
+ break;
+ }
+ case LL_IOC_HSM_REQUEST: {
+ struct hsm_user_request *hur = karg;
+ unsigned int reqcount = hur->hur_request.hr_itemcount;
+
+ if (reqcount == 0)
+ RETURN(0);
+
+ /* if the request is about a single fid
+ * or if there is a single MDS, no need to split
+ * the request. */
+ if (reqcount == 1 || count == 1) {
+ tgt = lmv_find_target(lmv,
+ &hur->hur_user_item[0].hui_fid);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
+ rc = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
+ } else {
+ /* split fid list to their respective MDS */
+ for (i = 0; i < count; i++) {
+ unsigned int nr, reqlen;
+ int rc1;
+ struct hsm_user_request *req;
+
+ tgt = lmv->tgts[i];
+ if (tgt == NULL || tgt->ltd_exp == NULL)
+ continue;
+
+ nr = lmv_hsm_req_count(lmv, hur, tgt);
+ if (nr == 0) /* nothing for this MDS */
+ continue;
+
+ /* build a request with fids for this MDS */
+ reqlen = offsetof(typeof(*hur),
+ hur_user_item[nr])
+ + hur->hur_request.hr_data_len;
+ OBD_ALLOC_LARGE(req, reqlen);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+
+ lmv_hsm_req_build(lmv, hur, tgt, req);
+
+ rc1 = obd_iocontrol(cmd, tgt->ltd_exp, reqlen,
+ req, uarg);
+ if (rc1 != 0 && rc == 0)
+ rc = rc1;
+ OBD_FREE_LARGE(req, reqlen);
+ }
+ }
+ break;
+ }
case LL_IOC_LOV_SWAP_LAYOUTS: {
struct md_op_data *op_data = karg;
struct lmv_tgt_desc *tgt1, *tgt2;
tgt1 = lmv_find_target(lmv, &op_data->op_fid1);
+ if (IS_ERR(tgt1))
+ RETURN(PTR_ERR(tgt1));
+
tgt2 = lmv_find_target(lmv, &op_data->op_fid2);
+ if (IS_ERR(tgt2))
+ RETURN(PTR_ERR(tgt2));
+
if ((tgt1->ltd_exp == NULL) || (tgt2->ltd_exp == NULL))
RETURN(-EINVAL);
rc = obd_iocontrol(cmd, tgt1->ltd_exp, len, karg, uarg);
break;
}
+ case LL_IOC_HSM_CT_START: {
+ struct lustre_kernelcomm *lk = karg;
+ if (lk->lk_flags & LK_FLG_STOP)
+ rc = lmv_hsm_ct_unregister(lmv, cmd, len, lk, uarg);
+ else
+ rc = lmv_hsm_ct_register(lmv, cmd, len, lk, uarg);
+ break;
+ }
default:
for (i = 0; i < count; i++) {
struct obd_device *mdc_obd;
int err;
- if (lmv->tgts[i] == NULL ||
- lmv->tgts[i]->ltd_exp == NULL)
+ tgt = lmv->tgts[i];
+ if (tgt == NULL || tgt->ltd_exp == NULL)
continue;
/* ll_umount_begin() sets force flag but for lmv, not
* mdc. Let's pass it through */
- mdc_obd = class_exp2obd(lmv->tgts[i]->ltd_exp);
+ mdc_obd = class_exp2obd(tgt->ltd_exp);
mdc_obd->obd_force = obddev->obd_force;
- err = obd_iocontrol(cmd, lmv->tgts[i]->ltd_exp, len,
- karg, uarg);
+ err = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
if (err == -ENODATA && cmd == OBD_IOC_POLL_QUOTACHECK) {
RETURN(err);
} else if (err) {
- if (lmv->tgts[i]->ltd_active) {
+ if (tgt->ltd_active) {
CERROR("error: iocontrol MDC %s on MDT"
- "idx %d cmd %x: err = %d\n",
- lmv->tgts[i]->ltd_uuid.uuid,
- i, cmd, err);
+ " idx %d cmd %x: err = %d\n",
+ tgt->ltd_uuid.uuid, i, cmd, err);
if (!rc)
rc = err;
}
}
int __lmv_fid_alloc(struct lmv_obd *lmv, struct lu_fid *fid,
- mdsno_t mds)
+ mdsno_t mds)
{
- struct lmv_tgt_desc *tgt;
- int rc;
- ENTRY;
+ struct lmv_tgt_desc *tgt;
+ int rc;
+ ENTRY;
- tgt = lmv_get_target(lmv, mds);
+ tgt = lmv_get_target(lmv, mds);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
- /*
- * New seq alloc and FLD setup should be atomic. Otherwise we may find
- * on server that seq in new allocated fid is not yet known.
- */
+ /*
+ * New seq alloc and FLD setup should be atomic. Otherwise we may find
+ * on server that seq in new allocated fid is not yet known.
+ */
mutex_lock(&tgt->ltd_fid_mutex);
- if (tgt == NULL || tgt->ltd_active == 0 || tgt->ltd_exp == NULL)
+ if (tgt->ltd_active == 0 || tgt->ltd_exp == NULL)
GOTO(out, rc = -ENODEV);
/*
lprocfs_lmv_init_vars(&lvars);
lprocfs_obd_setup(obd, lvars.obd_vars);
+ lprocfs_alloc_md_stats(obd, 0);
#ifdef LPROCFS
- {
- rc = lprocfs_seq_create(obd->obd_proc_entry, "target_obd",
- 0444, &lmv_proc_target_fops, obd);
- if (rc)
- CWARN("%s: error adding LMV target_obd file: rc = %d\n",
- obd->obd_name, rc);
- }
+ {
+ rc = lprocfs_seq_create(obd->obd_proc_entry, "target_obd",
+ 0444, &lmv_proc_target_fops, obd);
+ if (rc)
+ CWARN("%s: error adding LMV target_obd file: rc = %d\n",
+ obd->obd_name, rc);
+ }
#endif
rc = fld_client_init(&lmv->lmv_fld, obd->obd_name,
LUSTRE_CLI_FLD_HASH_DHT);
static int lmv_statfs(const struct lu_env *env, struct obd_export *exp,
struct obd_statfs *osfs, __u64 max_age, __u32 flags)
{
- struct obd_device *obd = class_exp2obd(exp);
- struct lmv_obd *lmv = &obd->u.lmv;
- struct obd_statfs *temp;
- int rc = 0;
- int i;
- ENTRY;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct obd_statfs *temp;
+ int rc = 0;
+ __u32 i;
+ ENTRY;
rc = lmv_check_connect(obd);
if (rc)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
- int i;
+ __u32 i;
int rc;
ENTRY;
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
- int i;
+ __u32 i;
int rc;
ENTRY;
struct lmv_tgt_desc *tgt;
tgt = lmv_find_target(lmv, fid);
+ if (IS_ERR(tgt))
+ return tgt;
+
op_data->op_mds = tgt->ltd_idx;
return tgt;
static int
lmv_enqueue_remote(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
- struct lookup_intent *it, struct md_op_data *op_data,
- struct lustre_handle *lockh, void *lmm, int lmmsize,
- int extra_lock_flags)
+ struct lookup_intent *it, struct md_op_data *op_data,
+ struct lustre_handle *lockh, void *lmm, int lmmsize,
+ __u64 extra_lock_flags)
{
struct ptlrpc_request *req = it->d.lustre.it_data;
struct obd_device *obd = exp->exp_obd;
PFID(&op_data->op_fid2), op_data->op_namelen,
op_data->op_name, PFID(&op_data->op_fid1));
- op_data->op_fsuid = cfs_curproc_fsuid();
- op_data->op_fsgid = cfs_curproc_fsgid();
+ op_data->op_fsuid = current_fsuid();
+ op_data->op_fsgid = current_fsgid();
op_data->op_cap = cfs_curproc_cap_pack();
tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid2);
if (IS_ERR(tgt))
if (rc)
RETURN(rc);
- op_data->op_fsuid = cfs_curproc_fsuid();
- op_data->op_fsgid = cfs_curproc_fsgid();
+ op_data->op_fsuid = current_fsuid();
+ op_data->op_fsgid = current_fsgid();
op_data->op_cap = cfs_curproc_cap_pack();
src_tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
if (IS_ERR(src_tgt))
RETURN(rc);
}
-static int lmv_sync(struct obd_export *exp, const struct lu_fid *fid,
- struct obd_capa *oc, struct ptlrpc_request **request)
+static int lmv_fsync(struct obd_export *exp, const struct lu_fid *fid,
+ struct obd_capa *oc, struct ptlrpc_request **request)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_tgt_desc *tgt;
- int rc;
- ENTRY;
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
+ int rc;
+ ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
+ rc = lmv_check_connect(obd);
+ if (rc != 0)
+ RETURN(rc);
- tgt = lmv_find_target(lmv, fid);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ tgt = lmv_find_target(lmv, fid);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
- rc = md_sync(tgt->ltd_exp, fid, oc, request);
- RETURN(rc);
+ rc = md_fsync(tgt->ltd_exp, fid, oc, request);
+ RETURN(rc);
}
-static int lmv_readpage(struct obd_export *exp, struct md_op_data *op_data,
- struct page **pages, struct ptlrpc_request **request)
+/*
+ * Adjust a set of pages, each page containing an array of lu_dirpages,
+ * so that each page can be used as a single logical lu_dirpage.
+ *
+ * A lu_dirpage is laid out as follows, where s = ldp_hash_start,
+ * e = ldp_hash_end, f = ldp_flags, p = padding, and each "ent" is a
+ * struct lu_dirent. It has size up to LU_PAGE_SIZE. The ldp_hash_end
+ * value is used as a cookie to request the next lu_dirpage in a
+ * directory listing that spans multiple pages (two in this example):
+ * ________
+ * | |
+ * .|--------v------- -----.
+ * |s|e|f|p|ent|ent| ... |ent|
+ * '--|-------------- -----' Each CFS_PAGE contains a single
+ * '------. lu_dirpage.
+ * .---------v------- -----.
+ * |s|e|f|p|ent| 0 | ... | 0 |
+ * '----------------- -----'
+ *
+ * However, on hosts where the native VM page size (PAGE_CACHE_SIZE) is
+ * larger than LU_PAGE_SIZE, a single host page may contain multiple
+ * lu_dirpages. After reading the lu_dirpages from the MDS, the
+ * ldp_hash_end of the first lu_dirpage refers to the one immediately
+ * after it in the same CFS_PAGE (arrows simplified for brevity, but
+ * in general e0==s1, e1==s2, etc.):
+ *
+ * .-------------------- -----.
+ * |s0|e0|f0|p|ent|ent| ... |ent|
+ * |---v---------------- -----|
+ * |s1|e1|f1|p|ent|ent| ... |ent|
+ * |---v---------------- -----| Here, each CFS_PAGE contains
+ * ... multiple lu_dirpages.
+ * |---v---------------- -----|
+ * |s'|e'|f'|p|ent|ent| ... |ent|
+ * '---|---------------- -----'
+ * v
+ * .----------------------------.
+ * | next CFS_PAGE |
+ *
+ * This structure is transformed into a single logical lu_dirpage as follows:
+ *
+ * - Replace e0 with e' so the request for the next lu_dirpage gets the page
+ * labeled 'next CFS_PAGE'.
+ *
+ * - Copy the LDF_COLLIDE flag from f' to f0 to correctly reflect whether
+ * a hash collision with the next page exists.
+ *
+ * - Adjust the lde_reclen of the ending entry of each lu_dirpage to span
+ * to the first entry of the next lu_dirpage.
+ */
+#if PAGE_CACHE_SIZE > LU_PAGE_SIZE
+static void lmv_adjust_dirpages(struct page **pages, int ncfspgs, int nlupgs)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- __u64 offset = op_data->op_offset;
- int rc;
- int i;
- /* number of pages read, in CFS_PAGE_SIZE */
- int nrdpgs;
- /* number of pages transferred in LU_PAGE_SIZE */
- int nlupgs;
- struct lmv_tgt_desc *tgt;
- struct lu_dirpage *dp;
- struct lu_dirent *ent;
- ENTRY;
+ int i;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
+ for (i = 0; i < ncfspgs; i++) {
+ struct lu_dirpage *dp = kmap(pages[i]);
+ struct lu_dirpage *first = dp;
+ struct lu_dirent *end_dirent = NULL;
+ struct lu_dirent *ent;
+ __u64 hash_end = dp->ldp_hash_end;
+ __u32 flags = dp->ldp_flags;
- CDEBUG(D_INODE, "READPAGE at "LPX64" from "DFID"\n",
- offset, PFID(&op_data->op_fid1));
+ while (--nlupgs > 0) {
+ ent = lu_dirent_start(dp);
+ for (end_dirent = ent; ent != NULL;
+ end_dirent = ent, ent = lu_dirent_next(ent));
+
+ /* Advance dp to next lu_dirpage. */
+ dp = (struct lu_dirpage *)((char *)dp + LU_PAGE_SIZE);
+
+ /* Check if we've reached the end of the CFS_PAGE. */
+ if (!((unsigned long)dp & ~CFS_PAGE_MASK))
+ break;
+
+ /* Save the hash and flags of this lu_dirpage. */
+ hash_end = dp->ldp_hash_end;
+ flags = dp->ldp_flags;
+
+ /* Check if lu_dirpage contains no entries. */
+ if (!end_dirent)
+ break;
+
+ /* Enlarge the end entry lde_reclen from 0 to
+ * first entry of next lu_dirpage. */
+ LASSERT(le16_to_cpu(end_dirent->lde_reclen) == 0);
+ end_dirent->lde_reclen =
+ cpu_to_le16((char *)(dp->ldp_entries) -
+ (char *)end_dirent);
+ }
- /*
- * This case handle directory lookup in clustered metadata case (i.e.
- * split directory is located on multiple md servers.)
- * each server keeps directory entries for certain range of hashes.
- * E.g. we have N server and suppose hash range is 0 to MAX_HASH.
- * first server will keep records with hashes [ 0 ... MAX_HASH /N - 1],
- * second one with hashes [MAX_HASH / N ... 2 * MAX_HASH / N] and
- * so on....
- * readdir can simply start reading entries from 0 - N server in
- * order but that will not scale well as all client will request dir in
- * to server in same order.
- * Following algorithm does optimization:
- * Instead of doing readdir in 1, 2, ...., N order, client with a
- * rank R does readdir in R, R + 1, ..., N, 1, ... R - 1 order.
- * (every client has rank R)
- * But ll_readdir() expect offset range [0 to MAX_HASH/N) but
- * since client ask dir from MDS{R} client has pages with offsets
- * [R*MAX_HASH/N ... (R + 1)*MAX_HASH/N] there for we do hash_adj
- * on hash values that we get.
- * Since these codes might be still useful for sharded directory, so
- * Keeping this code for further reference
- if (0) {
- LASSERT(nr > 0);
- seg_size = MAX_HASH_SIZE;
- do_div(seg_size, nr);
- los = obj->lo_stripes;
- tgt = lmv_get_target(lmv, los[0].ls_mds);
- rank = lmv_node_rank(tgt->ltd_exp, fid) % nr;
- tgt_tmp = offset;
- do_div(tgt_tmp, seg_size);
- tgt0_idx = do_div(tgt_tmp, nr);
- tgt_idx = (tgt0_idx + rank) % nr;
-
- if (tgt_idx < tgt0_idx)
- * Wrap around.
- *
- * Last segment has unusual length due to division
- * rounding.
- hash_adj = MAX_HASH_SIZE - seg_size * nr;
- else
- hash_adj = 0;
+ first->ldp_hash_end = hash_end;
+ first->ldp_flags &= ~cpu_to_le32(LDF_COLLIDE);
+ first->ldp_flags |= flags & cpu_to_le32(LDF_COLLIDE);
+
+ kunmap(pages[i]);
+ }
+ LASSERTF(nlupgs == 0, "left = %d", nlupgs);
+}
+#else
+#define lmv_adjust_dirpages(pages, ncfspgs, nlupgs) do {} while (0)
+#endif /* PAGE_CACHE_SIZE > LU_PAGE_SIZE */
- hash_adj += rank * seg_size;
+static int lmv_readpage(struct obd_export *exp, struct md_op_data *op_data,
+ struct page **pages, struct ptlrpc_request **request)
+{
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ __u64 offset = op_data->op_offset;
+ int rc;
+ int ncfspgs; /* pages read in PAGE_CACHE_SIZE */
+ int nlupgs; /* pages read in LU_PAGE_SIZE */
+ struct lmv_tgt_desc *tgt;
+ ENTRY;
- CDEBUG(D_INODE, "Readpage hash adjustment: %x "LPX64" "
- LPX64"/%x -> "LPX64"/%x\n", rank, hash_adj,
- offset, tgt0_idx, offset + hash_adj, tgt_idx);
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
- offset = (offset + hash_adj) & MAX_HASH_SIZE;
- rid = lsm->mea_oinfo[tgt_idx].lmo_fid;
- tgt = lmv_get_target(lmv, lsm->mea_oinfo[tgt_idx].lmo_mds);
+ CDEBUG(D_INODE, "READPAGE at "LPX64" from "DFID"\n",
+ offset, PFID(&op_data->op_fid1));
- CDEBUG(D_INODE, "Forward to "DFID" with offset %lu i %d\n",
- PFID(&rid), (unsigned long)offset, tgt_idx);
- }
- */
tgt = lmv_find_target(lmv, &op_data->op_fid1);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
if (rc != 0)
RETURN(rc);
- nrdpgs = ((*request)->rq_bulk->bd_nob_transferred + CFS_PAGE_SIZE - 1)
- >> CFS_PAGE_SHIFT;
+ ncfspgs = ((*request)->rq_bulk->bd_nob_transferred +
+ PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
nlupgs = (*request)->rq_bulk->bd_nob_transferred >> LU_PAGE_SHIFT;
LASSERT(!((*request)->rq_bulk->bd_nob_transferred & ~LU_PAGE_MASK));
- LASSERT(nrdpgs > 0 && nrdpgs <= op_data->op_npages);
+ LASSERT(ncfspgs > 0 && ncfspgs <= op_data->op_npages);
- CDEBUG(D_INODE, "read %d(%d)/%d pages\n", nrdpgs, nlupgs,
+ CDEBUG(D_INODE, "read %d(%d)/%d pages\n", ncfspgs, nlupgs,
op_data->op_npages);
- for (i = 0; i < nrdpgs; i++) {
-#if CFS_PAGE_SIZE > LU_PAGE_SIZE
- struct lu_dirpage *first;
- __u64 hash_end = 0;
- __u32 flags = 0;
-#endif
- struct lu_dirent *tmp = NULL;
-
- dp = cfs_kmap(pages[i]);
- ent = lu_dirent_start(dp);
-#if CFS_PAGE_SIZE > LU_PAGE_SIZE
- first = dp;
- hash_end = dp->ldp_hash_end;
-repeat:
-#endif
- nlupgs--;
-
- for (tmp = ent; ent != NULL;
- tmp = ent, ent = lu_dirent_next(ent));
-#if CFS_PAGE_SIZE > LU_PAGE_SIZE
- dp = (struct lu_dirpage *)((char *)dp + LU_PAGE_SIZE);
- if (((unsigned long)dp & ~CFS_PAGE_MASK) && nlupgs > 0) {
- ent = lu_dirent_start(dp);
+ lmv_adjust_dirpages(pages, ncfspgs, nlupgs);
- if (tmp) {
- /* enlarge the end entry lde_reclen from 0 to
- * first entry of next lu_dirpage, in this way
- * several lu_dirpages can be stored into one
- * client page on client. */
- tmp = ((void *)tmp) +
- le16_to_cpu(tmp->lde_reclen);
- tmp->lde_reclen =
- cpu_to_le16((char *)(dp->ldp_entries) -
- (char *)tmp);
- goto repeat;
- }
- }
- first->ldp_hash_end = hash_end;
- first->ldp_flags &= ~cpu_to_le32(LDF_COLLIDE);
- first->ldp_flags |= flags & cpu_to_le32(LDF_COLLIDE);
-#else
- SET_BUT_UNUSED(tmp);
-#endif
- cfs_kunmap(pages[i]);
- }
RETURN(rc);
}
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
- op_data->op_fsuid = cfs_curproc_fsuid();
- op_data->op_fsgid = cfs_curproc_fsgid();
+ op_data->op_fsuid = current_fsuid();
+ op_data->op_fsgid = current_fsgid();
op_data->op_cap = cfs_curproc_cap_pack();
/*
case OBD_CLEANUP_EXPORTS:
fld_client_proc_fini(&lmv->lmv_fld);
lprocfs_obd_cleanup(obd);
+ lprocfs_free_md_stats(obd);
break;
default:
break;
lmv = &obd->u.lmv;
if (keylen >= strlen("remote_flag") && !strcmp(key, "remote_flag")) {
- struct lmv_tgt_desc *tgt;
int i;
rc = lmv_check_connect(obd);
LASSERT(*vallen == sizeof(__u32));
for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- tgt = lmv->tgts[i];
+ struct lmv_tgt_desc *tgt = lmv->tgts[i];
/*
* All tgts should be connected when this gets called.
*/
struct lmv_stripe_md *meap;
struct lmv_stripe_md *lsmp;
int mea_size;
- int i;
+ __u32 i;
ENTRY;
mea_size = lmv_get_easize(lmv);
struct lmv_stripe_md *mea = (struct lmv_stripe_md *)lmm;
struct lmv_obd *lmv = &obd->u.lmv;
int mea_size;
- int i;
+ __u32 i;
__u32 magic;
ENTRY;
struct lmv_obd *lmv = &obd->u.lmv;
int rc = 0;
int err;
- int i;
+ __u32 i;
ENTRY;
LASSERT(fid != NULL);
- for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- if (lmv->tgts[i] == NULL || lmv->tgts[i]->ltd_exp == NULL ||
- lmv->tgts[i]->ltd_active == 0)
+ for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
+ struct lmv_tgt_desc *tgt = lmv->tgts[i];
+
+ if (tgt == NULL || tgt->ltd_exp == NULL || !tgt->ltd_active)
continue;
- err = md_cancel_unused(lmv->tgts[i]->ltd_exp, fid,
- policy, mode, flags, opaque);
+ err = md_cancel_unused(tgt->ltd_exp, fid, policy, mode, flags,
+ opaque);
if (!rc)
rc = err;
- }
+ }
RETURN(rc);
}
int lmv_set_lock_data(struct obd_export *exp, __u64 *lockh, void *data,
__u64 *bits)
{
- struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
- int rc;
+ struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
+ struct lmv_tgt_desc *tgt = lmv->tgts[0];
+ int rc;
ENTRY;
- rc = md_set_lock_data(lmv->tgts[0]->ltd_exp, lockh, data, bits);
+ if (tgt == NULL || tgt->ltd_exp == NULL)
+ RETURN(-EINVAL);
+ rc = md_set_lock_data(tgt->ltd_exp, lockh, data, bits);
RETURN(rc);
}
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
ldlm_mode_t rc;
- int i;
+ __u32 i;
ENTRY;
CDEBUG(D_INODE, "Lock match for "DFID"\n", PFID(fid));
* one fid was created in.
*/
for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- if (lmv->tgts[i] == NULL ||
- lmv->tgts[i]->ltd_exp == NULL ||
- lmv->tgts[i]->ltd_active == 0)
+ struct lmv_tgt_desc *tgt = lmv->tgts[i];
+
+ if (tgt == NULL || tgt->ltd_exp == NULL || !tgt->ltd_active)
continue;
- rc = md_lock_match(lmv->tgts[i]->ltd_exp, flags, fid,
- type, policy, mode, lockh);
+ rc = md_lock_match(tgt->ltd_exp, flags, fid, type, policy, mode,
+ lockh);
if (rc)
RETURN(rc);
}
struct obd_export *dt_exp, struct obd_export *md_exp,
struct lustre_md *md)
{
- struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
+ struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
+ struct lmv_tgt_desc *tgt = lmv->tgts[0];
- return md_get_lustre_md(lmv->tgts[0]->ltd_exp, req, dt_exp, md_exp, md);
+ if (tgt == NULL || tgt->ltd_exp == NULL)
+ RETURN(-EINVAL);
+ return md_get_lustre_md(tgt->ltd_exp, req, dt_exp, md_exp, md);
}
int lmv_free_lustre_md(struct obd_export *exp, struct lustre_md *md)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt = lmv->tgts[0];
ENTRY;
if (md->mea)
obd_free_memmd(exp, (void *)&md->mea);
- RETURN(md_free_lustre_md(lmv->tgts[0]->ltd_exp, md));
+ if (tgt == NULL || tgt->ltd_exp == NULL)
+ RETURN(-EINVAL);
+ RETURN(md_free_lustre_md(tgt->ltd_exp, md));
}
int lmv_set_open_replay_data(struct obd_export *exp,
int lmv_unpack_capa(struct obd_export *exp, struct ptlrpc_request *req,
const struct req_msg_field *field, struct obd_capa **oc)
{
- struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
+ struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
+ struct lmv_tgt_desc *tgt = lmv->tgts[0];
- return md_unpack_capa(lmv->tgts[0]->ltd_exp, req, field, oc);
+ if (tgt == NULL || tgt->ltd_exp == NULL)
+ RETURN(-EINVAL);
+ return md_unpack_capa(tgt->ltd_exp, req, field, oc);
}
int lmv_intent_getattr_async(struct obd_export *exp,
struct obd_device *obd = class_exp2obd(exp);
struct lmv_obd *lmv = &obd->u.lmv;
struct lmv_tgt_desc *tgt = lmv->tgts[0];
- int rc = 0, i;
+ int rc = 0;
+ __u32 i;
__u64 curspace, curinodes;
ENTRY;
- if (!lmv->desc.ld_tgt_count || !tgt->ltd_active) {
- CERROR("master lmv inactive\n");
- RETURN(-EIO);
- }
+ if (tgt == NULL ||
+ tgt->ltd_exp == NULL ||
+ !tgt->ltd_active ||
+ lmv->desc.ld_tgt_count == 0) {
+ CERROR("master lmv inactive\n");
+ RETURN(-EIO);
+ }
if (oqctl->qc_cmd != Q_GETOQUOTA) {
rc = obd_quotactl(tgt->ltd_exp, oqctl);
int err;
tgt = lmv->tgts[i];
- if (tgt == NULL || tgt->ltd_exp == NULL || tgt->ltd_active == 0)
+ if (tgt == NULL || tgt->ltd_exp == NULL || !tgt->ltd_active)
continue;
- if (!tgt->ltd_active) {
- CDEBUG(D_HA, "mdt %d is inactive.\n", i);
- continue;
- }
err = obd_quotactl(tgt->ltd_exp, oqctl);
if (err) {
int lmv_quotacheck(struct obd_device *unused, struct obd_export *exp,
struct obd_quotactl *oqctl)
{
- struct obd_device *obd = class_exp2obd(exp);
- struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_tgt_desc *tgt;
- int i, rc = 0;
- ENTRY;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
+ __u32 i;
+ int rc = 0;
+ ENTRY;
for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- int err;
+ int err;
tgt = lmv->tgts[i];
if (tgt == NULL || tgt->ltd_exp == NULL || !tgt->ltd_active) {
CERROR("lmv idx %d inactive\n", i);
.m_rename = lmv_rename,
.m_setattr = lmv_setattr,
.m_setxattr = lmv_setxattr,
- .m_sync = lmv_sync,
+ .m_fsync = lmv_fsync,
.m_readpage = lmv_readpage,
.m_unlink = lmv_unlink,
.m_init_ea_size = lmv_init_ea_size,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff