#include <linux/slab.h>
#include <linux/pagemap.h>
#include <asm/div64.h>
+#include <linux/seq_file.h>
#else
#include <liblustre.h>
#endif
#include <linux/lustre_mds.h>
#include <linux/obd_class.h>
#include <linux/obd_ost.h>
-#include <linux/seq_file.h>
#include <linux/lprocfs_status.h>
#include <linux/lustre_fsfilt.h>
#include <linux/obd_lmv.h>
#include "lmv_internal.h"
+/* Error codes:
+ *
+ * -EINVAL : UUID can't be found in the LMV's target list
+ * -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 obd_device *obd;
+ struct lmv_tgt_desc *tgt;
+ int i, rc = 0;
+ ENTRY;
+
+ 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, tgt = lmv->tgts; i < lmv->desc.ld_tgt_count; i++, tgt++) {
+ if (tgt->ltd_exp == NULL)
+ continue;
+
+ CDEBUG(D_INFO, "lmv idx %d is %s conn "LPX64"\n",
+ i, tgt->uuid.uuid, tgt->ltd_exp->exp_handle.h_cookie);
+ if (strncmp(uuid->uuid, tgt->uuid.uuid, sizeof uuid->uuid) == 0)
+ break;
+ }
+
+ if (i == lmv->desc.ld_tgt_count)
+ GOTO(out, rc = -EINVAL);
+
+ obd = class_exp2obd(tgt->ltd_exp);
+ if (obd == NULL)
+ GOTO(out, rc = -ENOTCONN);
+
+ CDEBUG(D_INFO, "Found OBD %s=%s device %d (%p) type %s at LMV idx %d\n",
+ obd->obd_name, obd->obd_uuid.uuid, obd->obd_minor, obd,
+ obd->obd_type->typ_name, i);
+ LASSERT(strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) == 0);
+
+ if (tgt->active == activate) {
+ CDEBUG(D_INFO, "OBD %p already %sactive!\n", obd,
+ activate ? "" : "in");
+ GOTO(out, rc);
+ }
+
+ CDEBUG(D_INFO, "Marking OBD %p %sactive\n", obd, activate ? "" : "in");
+
+ tgt->active = activate;
+ if (activate)
+ lmv->desc.ld_active_tgt_count++;
+ else
+ lmv->desc.ld_active_tgt_count--;
+
+ EXIT;
+ out:
+ spin_unlock(&lmv->lmv_lock);
+ return rc;
+}
+
+static int lmv_notify(struct obd_device *obd, struct obd_device *watched,
+ int active)
+{
+ int rc;
+ struct obd_uuid *uuid;
+
+ if (strcmp(watched->obd_type->typ_name, LUSTRE_MDC_NAME)) {
+ CERROR("unexpected notification of %s %s!\n",
+ watched->obd_type->typ_name,
+ watched->obd_name);
+ return -EINVAL;
+ }
+ uuid = &watched->u.cli.cl_import->imp_target_uuid;
+
+ /* Set MDC as active before notifying the observer, so the
+ * observer can use the MDC normally.
+ */
+ rc = lmv_set_mdc_active(&obd->u.lmv, uuid, active);
+ if (rc) {
+ CERROR("%sactivation of %s failed: %d\n",
+ active ? "" : "de", uuid->uuid, rc);
+ RETURN(rc);
+ }
+
+ if (obd->obd_observer)
+ /* Pass the notification up the chain. */
+ rc = obd_notify(obd->obd_observer, watched, active);
+
+ RETURN(rc);
+}
+
int lmv_attach(struct obd_device *dev, obd_count len, void *data)
{
struct lprocfs_static_vars lvars;
- struct proc_dir_entry *entry;
int rc;
ENTRY;
lprocfs_init_vars(lmv, &lvars);
rc = lprocfs_obd_attach(dev, lvars.obd_vars);
- if (rc)
- RETURN (rc);
-
- entry = create_proc_entry("target_obd", 0444, dev->obd_proc_entry);
- if (entry == NULL)
- RETURN(-ENOMEM);
- /* entry->proc_fops = &lmv_proc_target_fops; */
- entry->data = dev;
-
+ if (rc == 0) {
+#ifdef __KERNEL__
+ struct proc_dir_entry *entry;
+
+ entry = create_proc_entry("target_obd", 0444, dev->obd_proc_entry);
+ if (entry == NULL)
+ RETURN(-ENOMEM);
+ /* entry->proc_fops = &lmv_proc_target_fops; */
+ entry->data = dev;
+#endif
+ }
RETURN (rc);
}
return lprocfs_obd_detach(dev);
}
-static int lmv_connect_fake(struct lustre_handle *conn,
- struct obd_device *obd,
- struct obd_uuid *cluuid)
+/* This is fake connect function. Its purpose is to initialize lmv and
+ * say caller that everything is okay. Real connection will be performed
+ * later. */
+static int lmv_connect(struct lustre_handle *conn, struct obd_device *obd,
+ struct obd_uuid *cluuid, unsigned long connect_flags)
{
struct lmv_obd *lmv = &obd->u.lmv;
+ struct obd_export *exp;
int rc;
ENTRY;
RETURN(rc);
}
- lmv->exp = class_conn2export(conn);
- LASSERT(lmv->exp != NULL);
+ exp = class_conn2export(conn);
+ /* We don't want to actually do the underlying connections more than
+ * once, so keep track. */
+ lmv->refcount++;
+ if (lmv->refcount > 1) {
+ class_export_put(exp);
+ RETURN(0);
+ }
lmv->cluuid = *cluuid;
+ lmv->connect_flags = connect_flags;
lmv->connected = 0;
+ lmv->exp = exp;
RETURN(0);
}
-int lmv_connect(struct obd_device *obd)
+void lmv_set_timeouts(struct obd_device *obd)
+{
+ struct lmv_tgt_desc *tgts;
+ struct lmv_obd *lmv;
+ int i;
+
+ lmv = &obd->u.lmv;
+ if (lmv->server_timeout == 0)
+ return;
+
+ if (lmv->connected == 0)
+ return;
+
+ for (i = 0, tgts = lmv->tgts; i < lmv->desc.ld_tgt_count; i++, tgts++) {
+ if (tgts->ltd_exp == NULL)
+ continue;
+ obd_set_info(tgts->ltd_exp, strlen("inter_mds"),
+ "inter_mds", 0, NULL);
+ }
+}
+
+/* Performs a check if passed obd is connected. If no - connect it. */
+int lmv_check_connect(struct obd_device *obd)
{
struct lmv_obd *lmv = &obd->u.lmv;
struct obd_uuid *cluuid;
struct lmv_tgt_desc *tgts;
struct obd_export *exp;
- int rc, i;
- ENTRY;
+ int rc, rc2, i;
if (lmv->connected)
- RETURN(0);
+ return 0;
lmv->connected = 1;
cluuid = &lmv->cluuid;
exp = lmv->exp;
+
CDEBUG(D_OTHER, "time to connect %s to %s\n",
- cluuid->uuid, obd->obd_name);
+ cluuid->uuid, obd->obd_name);
- /* We don't want to actually do the underlying connections more than
- * once, so keep track. */
- lmv->refcount++;
- if (lmv->refcount > 1) {
- class_export_put(exp);
- RETURN(0);
- }
-
- for (i = 0, tgts = lmv->tgts; i < lmv->count; i++, tgts++) {
+ for (i = 0, tgts = lmv->tgts; i < lmv->desc.ld_tgt_count; i++, tgts++) {
struct obd_device *tgt_obd;
struct obd_uuid lmv_osc_uuid = { "LMV_OSC_UUID" };
struct lustre_handle conn = {0, };
if (obd_uuid_equals(&tgts->uuid, cluuid)) {
CDEBUG(D_OTHER, "don't connect back to %s\n",
cluuid->uuid);
- tgts->exp = NULL;
+ tgts->ltd_exp = NULL;
continue;
}
GOTO(out_disc, rc = -EINVAL);
}
- rc = obd_connect(&conn, tgt_obd, &lmv_osc_uuid);
+ rc = obd_connect(&conn, tgt_obd, &lmv_osc_uuid, lmv->connect_flags);
if (rc) {
CERROR("Target %s connect error %d\n",
tgts->uuid.uuid, rc);
GOTO(out_disc, rc);
}
- tgts->exp = class_conn2export(&conn);
+ tgts->ltd_exp = class_conn2export(&conn);
- obd_init_ea_size(tgts->exp, lmv->max_easize,
- lmv->max_cookiesize);
+ obd_init_ea_size(tgts->ltd_exp, lmv->max_easize,
+ lmv->max_cookiesize);
rc = obd_register_observer(tgt_obd, obd);
if (rc) {
CERROR("Target %s register_observer error %d\n",
tgts->uuid.uuid, rc);
- obd_disconnect(tgts->exp, 0);
+ obd_disconnect(tgts->ltd_exp, 0);
GOTO(out_disc, rc);
}
+ lmv->desc.ld_active_tgt_count++;
+ tgts->active = 1;
+
CDEBUG(D_OTHER, "connected to %s(%s) successfully (%d)\n",
tgt_obd->obd_name, tgt_obd->obd_uuid.uuid,
atomic_read(&obd->obd_refcount));
}
+ lmv_set_timeouts(obd);
class_export_put(exp);
- RETURN (0);
+ return 0;
out_disc:
- /* FIXME: cleanup here */
+ while (i-- > 0) {
+ struct obd_uuid uuid;
+ --tgts;
+ --lmv->desc.ld_active_tgt_count;
+ tgts->active = 0;
+ /* save for CERROR below; (we know it's terminated) */
+ uuid = tgts->uuid;
+ rc2 = obd_disconnect(tgts->ltd_exp, 0);
+ if (rc2)
+ CERROR("error: LMV target %s disconnect on MDT idx %d: "
+ "error %d\n", uuid.uuid, i, rc2);
+ }
class_disconnect(exp, 0);
RETURN (rc);
}
if (lmv->refcount != 0)
goto out_local;
- for (i = 0; i < lmv->count; i++) {
- if (lmv->tgts[i].exp == NULL)
+ for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
+ if (lmv->tgts[i].ltd_exp == NULL)
continue;
if (obd->obd_no_recov) {
* XXX not a back-door flag on the OBD. Ah well.
*/
struct obd_device *mdc_obd;
- mdc_obd = class_exp2obd(lmv->tgts[i].exp);
+ mdc_obd = class_exp2obd(lmv->tgts[i].ltd_exp);
if (mdc_obd)
mdc_obd->obd_no_recov = 1;
}
CDEBUG(D_OTHER, "disconnected from %s(%s) successfully\n",
- lmv->tgts[i].exp->exp_obd->obd_name,
- lmv->tgts[i].exp->exp_obd->obd_uuid.uuid);
+ lmv->tgts[i].ltd_exp->exp_obd->obd_name,
+ lmv->tgts[i].ltd_exp->exp_obd->obd_uuid.uuid);
- obd_register_observer(lmv->tgts[i].exp->exp_obd, NULL);
+ obd_register_observer(lmv->tgts[i].ltd_exp->exp_obd, NULL);
- rc = obd_disconnect(lmv->tgts[i].exp, flags);
- lmv->tgts[i].exp = NULL;
+ rc = obd_disconnect(lmv->tgts[i].ltd_exp, flags);
+ if (rc) {
+ if (lmv->tgts[i].active) {
+ CERROR("Target %s disconnect error %d\n",
+ lmv->tgts[i].uuid.uuid, rc);
+ }
+ rc = 0;
+ }
+ if (lmv->tgts[i].active) {
+ lmv->desc.ld_active_tgt_count--;
+ lmv->tgts[i].active = 0;
+ }
+ lmv->tgts[i].ltd_exp = NULL;
}
- out_local:
- /* FIXME: cleanup here */
+out_local:
+ /* this is the case when no real connection is established by
+ * lmv_check_connect(). */
if (!lmv->connected)
class_export_put(exp);
rc = class_disconnect(exp, 0);
+ if (lmv->refcount == 0)
+ lmv->connected = 0;
+ 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, rc = 0, set = 0;
+
+ ENTRY;
+
+ if (lmv->desc.ld_tgt_count == 0)
+ RETURN(-ENOTTY);
+
+ for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
+ int err;
+
+ if (lmv->tgts[i].ltd_exp == NULL) {
+ CWARN("%s: NULL export for %d\n", obddev->obd_name, i);
+ continue;
+ }
+
+ err = obd_iocontrol(cmd, lmv->tgts[i].ltd_exp, len, karg, uarg);
+ if (err) {
+ if (lmv->tgts[i].active) {
+ CERROR("error: iocontrol MDC %s on MDT"
+ "idx %d: err = %d\n",
+ lmv->tgts[i].uuid.uuid, i, err);
+ if (!rc)
+ rc = err;
+ }
+ } else
+ set = 1;
+ }
+ if (!set && !rc)
+ rc = -EIO;
+
RETURN(rc);
}
static int lmv_setup(struct obd_device *obd, obd_count len, void *buf)
{
- struct lustre_cfg *lcfg = buf;
+ int i, rc = 0;
struct lmv_desc *desc;
- struct lmv_obd *lmv = &obd->u.lmv;
struct obd_uuid *uuids;
struct lmv_tgt_desc *tgts;
- int i;
- int count;
- int rc = 0;
+ struct lustre_cfg *lcfg = buf;
+ struct lmv_obd *lmv = &obd->u.lmv;
ENTRY;
if (lcfg->lcfg_inllen1 < 1) {
RETURN(-EINVAL);
}
- count = desc->ld_count;
uuids = (struct obd_uuid *)lcfg->lcfg_inlbuf2;
- if (sizeof(*uuids) * count != lcfg->lcfg_inllen2) {
+ if (sizeof(*uuids) * desc->ld_tgt_count != lcfg->lcfg_inllen2) {
CERROR("UUID array size wrong: %u * %u != %u\n",
- sizeof(*uuids), count, lcfg->lcfg_inllen2);
+ sizeof(*uuids), desc->ld_tgt_count, lcfg->lcfg_inllen2);
RETURN(-EINVAL);
}
- lmv->bufsize = sizeof(struct lmv_tgt_desc) * count;
+ lmv->bufsize = sizeof(struct lmv_tgt_desc) * desc->ld_tgt_count;
OBD_ALLOC(lmv->tgts, lmv->bufsize);
if (lmv->tgts == NULL) {
CERROR("Out of memory\n");
- RETURN(-EINVAL);
+ RETURN(-ENOMEM);
}
- for (i = 0, tgts = lmv->tgts; i < count; i++, tgts++) {
+ lmv->desc = *desc;
+ spin_lock_init(&lmv->lmv_lock);
+
+ for (i = 0, tgts = lmv->tgts; i < desc->ld_tgt_count; i++, tgts++)
tgts->uuid = uuids[i];
- lmv->count++;
- }
-
- lmv->max_easize = sizeof(struct ll_fid) * lmv->count
- + sizeof(struct mea);
+
lmv->max_cookiesize = 0;
+ lmv->max_easize = sizeof(struct ll_fid) *
+ desc->ld_tgt_count + sizeof(struct mea);
+
+ rc = lmv_setup_mgr(obd);
+ if (rc) {
+ CERROR("Can't setup LMV object manager, "
+ "error %d.\n", rc);
+ OBD_FREE(lmv->tgts, lmv->bufsize);
+ }
+
RETURN(rc);
}
struct obd_statfs temp;
int rc = 0, i;
ENTRY;
- lmv_connect(obd);
- for (i = 0; i < lmv->count; i++) {
- rc = obd_statfs(lmv->tgts[i].exp->exp_obd, &temp, max_age);
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+
+ for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
+ if (lmv->tgts[i].ltd_exp == NULL) {
+ CWARN("%s: NULL export for %d\n", obd->obd_name, i);
+ continue;
+ }
+
+ rc = obd_statfs(lmv->tgts[i].ltd_exp->exp_obd, &temp, max_age);
if (rc) {
CERROR("can't stat MDS #%d (%s)\n", i,
- lmv->tgts[i].exp->exp_obd->obd_name);
+ lmv->tgts[i].ltd_exp->exp_obd->obd_name);
RETURN(rc);
}
if (i == 0) {
{
struct lmv_obd *lmv = &obd->u.lmv;
ENTRY;
- lmv_cleanup_objs(obd);
+ lmv_cleanup_mgr(obd);
OBD_FREE(lmv->tgts, lmv->bufsize);
RETURN(0);
}
struct lmv_obd *lmv = &obd->u.lmv;
int rc;
ENTRY;
- lmv_connect(obd);
- rc = md_getstatus(lmv->tgts[0].exp, fid);
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+ rc = md_getstatus(lmv->tgts[0].ltd_exp, fid);
fid->mds = 0;
RETURN(rc);
}
static int lmv_getattr(struct obd_export *exp, struct ll_fid *fid,
- unsigned long valid, unsigned int ea_size,
- struct ptlrpc_request **request)
+ unsigned long valid, unsigned int ea_size,
+ struct ptlrpc_request **request)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
int rc, i = fid->mds;
struct lmv_obj *obj;
ENTRY;
- lmv_connect(obd);
- obj = lmv_grab_obj(obd, fid, 0);
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+
+ LASSERT(i < lmv->desc.ld_tgt_count);
+
+ rc = md_getattr(lmv->tgts[i].ltd_exp, fid, valid,
+ ea_size, request);
+ if (rc)
+ RETURN(rc);
+
+ obj = lmv_grab_obj(obd, fid);
+
CDEBUG(D_OTHER, "GETATTR for %lu/%lu/%lu %s\n",
- (unsigned long) fid->mds,
- (unsigned long) fid->id,
- (unsigned long) fid->generation,
- obj ? "(splitted)" : "");
-
- LASSERT(fid->mds < lmv->count);
- rc = md_getattr(lmv->tgts[i].exp, fid,
- valid, ea_size, request);
- if (rc == 0 && obj) {
- /* we have to loop over dirobjs here and gather attrs
- * for all the slaves */
-#warning "attrs gathering here"
+ (unsigned long)fid->mds, (unsigned long)fid->id,
+ (unsigned long)fid->generation, obj ? "(splitted)" : "");
+
+ /* if object is splitted, then we loop over all the slaves and gather
+ * size attribute. In ideal world we would have to gather also mds field
+ * from all slaves, as object is spread over the cluster and this is
+ * definitely interesting information and it is not good to loss it,
+ * but...*/
+ if (obj) {
+ struct mds_body *body;
+
+ if (*request == NULL) {
+ lmv_put_obj(obj);
+ RETURN(rc);
+ }
+
+ body = lustre_msg_buf((*request)->rq_repmsg, 0,
+ sizeof(*body));
+ LASSERT(body != NULL);
+
+ lmv_lock_obj(obj);
+
+ for (i = 0; i < obj->objcount; i++) {
+
+ if (lmv->tgts[i].ltd_exp == NULL) {
+ CWARN("%s: NULL export for %d\n",
+ obd->obd_name, i);
+ continue;
+ }
+
+ /* skip master obj. */
+ if (fid_equal(&obj->fid, &obj->objs[i].fid))
+ continue;
+
+ body->size += obj->objs[i].size;
+ }
+
+ lmv_unlock_obj(obj);
+ lmv_put_obj(obj);
}
- lmv_put_obj(obj);
+
RETURN(rc);
}
-static int lmv_change_cbdata(struct obd_export *exp,
- struct ll_fid *fid,
- ldlm_iterator_t it, void *data)
+static int lmv_change_cbdata(struct obd_export *exp, struct ll_fid *fid,
+ ldlm_iterator_t it, void *data)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
int rc = 0;
ENTRY;
- lmv_connect(obd);
- CDEBUG(D_OTHER, "CBDATA for %lu/%lu/%lu\n",
- (unsigned long) fid->mds,
- (unsigned long) fid->id,
- (unsigned long) fid->generation);
- LASSERT(fid->mds < lmv->count);
- rc = md_change_cbdata(lmv->tgts[fid->mds].exp, fid, it, data);
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+
+ CDEBUG(D_OTHER, "CBDATA for %lu/%lu/%lu\n", (unsigned long)fid->mds,
+ (unsigned long)fid->id, (unsigned long)fid->generation);
+
+ LASSERT(fid->mds < lmv->desc.ld_tgt_count);
+
+ rc = md_change_cbdata(lmv->tgts[fid->mds].ltd_exp,
+ fid, it, data);
+
RETURN(rc);
}
struct lmv_obj *obj;
int rc = 0, mds;
ENTRY;
- lmv_connect(obd);
- LASSERT(pfid->mds < lmv->count);
- LASSERT(cfid->mds < lmv->count);
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+
+ LASSERT(pfid->mds < lmv->desc.ld_tgt_count);
+ LASSERT(cfid->mds < lmv->desc.ld_tgt_count);
+
CDEBUG(D_OTHER, "CBDATA for %lu/%lu/%lu:%*s -> %lu/%lu/%lu\n",
- (unsigned long) pfid->mds, (unsigned long) pfid->id,
- (unsigned long) pfid->generation, len, name,
- (unsigned long) cfid->mds, (unsigned long) cfid->id,
- (unsigned long) cfid->generation);
+ (unsigned long)pfid->mds, (unsigned long)pfid->id,
+ (unsigned long)pfid->generation, len, name,
+ (unsigned long)cfid->mds, (unsigned long)cfid->id,
+ (unsigned long)cfid->generation);
- /* this is default mds for directory name belongs to */
+ /* this is default mds for directory name belongs to. */
mds = pfid->mds;
- obj = lmv_grab_obj(obd, pfid, 0);
+ obj = lmv_grab_obj(obd, pfid);
if (obj) {
- /* directory is splitted. look for right mds for this name */
- mds = raw_name2idx(obj->objcount, name, len);
+ /* directory is splitted. look for right mds for this name. */
+ mds = raw_name2idx(obj->hashtype, obj->objcount, name, len);
+ mds = obj->objs[mds].fid.mds;
lmv_put_obj(obj);
}
- rc = md_change_cbdata(lmv->tgts[mds].exp, cfid, it, data);
+ rc = md_change_cbdata(lmv->tgts[mds].ltd_exp, cfid, it, data);
RETURN(rc);
}
struct lmv_obd *lmv = &obd->u.lmv;
int rc = 0;
ENTRY;
- lmv_connect(obd);
- CDEBUG(D_OTHER, "validate %lu/%lu/%lu\n",
- (unsigned long) fid->mds,
- (unsigned long) fid->id,
- (unsigned long) fid->generation);
- LASSERT(fid->mds < lmv->count);
- rc = md_valid_attrs(lmv->tgts[fid->mds].exp, fid);
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+ CDEBUG(D_OTHER, "validate %lu/%lu/%lu\n", (unsigned long) fid->mds,
+ (unsigned long) fid->id, (unsigned long) fid->generation);
+ LASSERT(fid->mds < lmv->desc.ld_tgt_count);
+ rc = md_valid_attrs(lmv->tgts[fid->mds].ltd_exp, fid);
RETURN(rc);
}
struct lmv_obd *lmv = &obd->u.lmv;
int rc, i = obdo->o_mds;
ENTRY;
- lmv_connect(obd);
- LASSERT(i < lmv->count);
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+ LASSERT(i < lmv->desc.ld_tgt_count);
CDEBUG(D_OTHER, "CLOSE %lu/%lu/%lu\n", (unsigned long) obdo->o_mds,
(unsigned long) obdo->o_id, (unsigned long) obdo->o_generation);
- rc = md_close(lmv->tgts[i].exp, obdo, och, request);
+ rc = md_close(lmv->tgts[i].ltd_exp, obdo, och, request);
+ RETURN(rc);
+}
+
+int lmv_get_mea_and_update_object(struct obd_export *exp, struct ll_fid *fid)
+{
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct ptlrpc_request *req = NULL;
+ struct lmv_obj *obj;
+ struct lustre_md md;
+ unsigned long valid;
+ int mealen, rc;
+
+ md.mea = NULL;
+ mealen = MEA_SIZE_LMV(lmv);
+
+ valid = OBD_MD_FLEASIZE | OBD_MD_FLDIREA;
+
+ /* time to update mea of parent fid */
+ rc = md_getattr(lmv->tgts[fid->mds].ltd_exp, fid,
+ valid, mealen, &req);
+ if (rc) {
+ CERROR("md_getattr() failed, error %d\n", rc);
+ GOTO(cleanup, rc);
+ }
+
+ rc = mdc_req2lustre_md(exp, req, 0, NULL, &md);
+ if (rc) {
+ CERROR("mdc_req2lustre_md() failed, error %d\n", rc);
+ GOTO(cleanup, rc);
+ }
+
+ if (md.mea == NULL)
+ GOTO(cleanup, rc = -ENODATA);
+
+ obj = lmv_create_obj(exp, fid, md.mea);
+ if (IS_ERR(obj))
+ rc = PTR_ERR(obj);
+
+ lmv_put_obj(obj);
+ obd_free_memmd(exp, (struct lov_stripe_md **)&md.mea);
+
+cleanup:
+ if (req)
+ ptlrpc_req_finished(req);
RETURN(rc);
}
int lmv_create(struct obd_export *exp, struct mdc_op_data *op_data,
- const void *data, int datalen, int mode, __u32 uid,
- __u32 gid, __u64 rdev, struct ptlrpc_request **request)
+ const void *data, int datalen, int mode, __u32 uid,
+ __u32 gid, __u64 rdev, struct ptlrpc_request **request)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
- struct mea *mea = op_data->mea1;
- struct mds_body *mds_body;
- int rc, i, mds, free_mea = 0;
+ struct mds_body *body;
struct lmv_obj *obj;
+ int rc, mds, loop = 0;
ENTRY;
- lmv_connect(obd);
- /* TODO: where to create new directories?
- * current design don't support directory on a slave MDS,
- * but we lookup by name may forward any request in slave
- */
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+
+ if (!lmv->desc.ld_active_tgt_count)
+ RETURN(-EIO);
repeat:
- obj = lmv_grab_obj(obd, &op_data->fid1, 0);
+ LASSERT(++loop <= 2);
+ obj = lmv_grab_obj(obd, &op_data->fid1);
if (obj) {
- mds = raw_name2idx(obj->objcount, op_data->name,
- op_data->namelen - 1);
+ mds = raw_name2idx(obj->hashtype, obj->objcount, op_data->name,
+ op_data->namelen);
op_data->fid1 = obj->objs[mds].fid;
lmv_put_obj(obj);
}
- CDEBUG(D_OTHER, "CREATE '%*s' on %lu/%lu/%lu (mea 0x%p)\n",
- op_data->namelen, op_data->name,
- (unsigned long) op_data->fid1.mds,
- (unsigned long) op_data->fid1.id,
- (unsigned long) op_data->fid1.generation, mea);
- rc = md_create(lmv->tgts[op_data->fid1.mds].exp, op_data, data,
+ CDEBUG(D_OTHER, "CREATE '%*s' on %lu/%lu/%lu\n", op_data->namelen,
+ op_data->name, (unsigned long)op_data->fid1.mds,
+ (unsigned long)op_data->fid1.id,
+ (unsigned long)op_data->fid1.generation);
+
+ rc = md_create(lmv->tgts[op_data->fid1.mds].ltd_exp, op_data, data,
datalen, mode, uid, gid, rdev, request);
if (rc == 0) {
if (*request == NULL)
- RETURN(rc);
- mds_body = lustre_msg_buf((*request)->rq_repmsg, 0,
- sizeof(*mds_body));
- LASSERT(mds_body != NULL);
- CDEBUG(D_OTHER, "created. id = %lu, generation = %lu, mds = %d\n",
- (unsigned long) mds_body->fid1.id,
- (unsigned long) mds_body->fid1.generation,
- op_data->fid1.mds);
- LASSERT(mds_body->valid & OBD_MD_MDS ||
- mds_body->mds == op_data->fid1.mds);
- } else if (rc == -ESTALE) {
- struct ptlrpc_request *req = NULL;
- struct lustre_md md;
- int mealen;
-
- LBUG(); /* FIXME ASAP */
- CDEBUG(D_OTHER, "it seems MDS splitted dir\n");
- LASSERT(mea == NULL);
-
- mealen = sizeof(struct ll_fid)*lmv->count + sizeof(struct mea);
- /* time to update mea of parent fid */
- i = op_data->fid1.mds;
- rc = md_getattr(lmv->tgts[i].exp, &op_data->fid1,
- OBD_MD_FLEASIZE, mealen, &req);
- LASSERT(rc == 0);
- md.mea = NULL;
- rc = mdc_req2lustre_md(req, 0, NULL, exp, &md);
- LASSERT(rc == 0);
- LASSERT(md.mea != NULL);
- mea = md.mea;
- ptlrpc_req_finished(req);
- free_mea = 1;
+ RETURN(rc);
- goto repeat;
+ body = lustre_msg_buf((*request)->rq_repmsg, 0,
+ sizeof(*body));
+ LASSERT(body != NULL);
+
+ CDEBUG(D_OTHER, "created. id = %lu, generation = %lu, "
+ "mds = %d\n", (unsigned long)body->fid1.id,
+ (unsigned long)body->fid1.generation, op_data->fid1.mds);
+
+ LASSERT(body->valid & OBD_MD_MDS ||
+ body->mds == op_data->fid1.mds);
+ } else if (rc == -ERESTART) {
+ /* directory got splitted. time to update local object and
+ * repeat the request with proper MDS */
+ rc = lmv_get_mea_and_update_object(exp, &op_data->fid1);
+ if (rc == 0) {
+ ptlrpc_req_finished(*request);
+ goto repeat;
+ }
}
- if (free_mea)
- obd_free_memmd(exp, (struct lov_stripe_md**) &mea);
RETURN(rc);
}
struct lmv_obd *lmv = &obd->u.lmv;
int rc;
ENTRY;
- lmv_connect(obd);
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+
/* FIXME: choose right MDC here */
- rc = md_done_writing(lmv->tgts[0].exp, obdo);
+ CWARN("this method isn't implemented yet\n");
+ rc = md_done_writing(lmv->tgts[0].ltd_exp, obdo);
+ RETURN(rc);
+}
+
+int lmv_enqueue_slaves(struct obd_export *exp, int locktype,
+ struct lookup_intent *it, int lockmode,
+ struct mdc_op_data *data, struct lustre_handle *lockh,
+ void *lmm, int lmmsize, ldlm_completion_callback cb_completion,
+ ldlm_blocking_callback cb_blocking, void *cb_data)
+{
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct mea *mea = data->mea1;
+ struct mdc_op_data data2;
+ int i, rc, mds;
+ ENTRY;
+
+ LASSERT(mea != NULL);
+ for (i = 0; i < mea->mea_count; i++) {
+ memset(&data2, 0, sizeof(data2));
+ data2.fid1 = mea->mea_fids[i];
+ mds = data2.fid1.mds;
+
+ if (lmv->tgts[mds].ltd_exp == NULL)
+ continue;
+
+ rc = md_enqueue(lmv->tgts[mds].ltd_exp, locktype, it, lockmode,
+ &data2, lockh + i, lmm, lmmsize, cb_completion,
+ cb_blocking, cb_data);
+
+ CDEBUG(D_OTHER, "take lock on slave %lu/%lu/%lu -> %d/%d\n",
+ (unsigned long)mea->mea_fids[i].mds,
+ (unsigned long)mea->mea_fids[i].id,
+ (unsigned long)mea->mea_fids[i].generation,
+ rc, it->d.lustre.it_status);
+ if (rc)
+ GOTO(cleanup, rc);
+ if (it->d.lustre.it_data) {
+ struct ptlrpc_request *req;
+ req = (struct ptlrpc_request *) it->d.lustre.it_data;
+ ptlrpc_req_finished(req);
+ }
+
+ if (it->d.lustre.it_status)
+ GOTO(cleanup, rc = it->d.lustre.it_status);
+ }
+ RETURN(0);
+
+cleanup:
+ /* drop all taken locks */
+ while (--i >= 0) {
+ if (lockh[i].cookie)
+ ldlm_lock_decref(lockh + i, lockmode);
+ lockh[i].cookie = 0;
+ }
RETURN(rc);
}
int lmv_enqueue(struct obd_export *exp, int lock_type,
- struct lookup_intent *it, int lock_mode,
- struct mdc_op_data *data, struct lustre_handle *lockh,
- void *lmm, int lmmsize,
- ldlm_completion_callback cb_completion,
- ldlm_blocking_callback cb_blocking, void *cb_data)
+ struct lookup_intent *it, int lock_mode,
+ struct mdc_op_data *data, struct lustre_handle *lockh,
+ void *lmm, int lmmsize, ldlm_completion_callback cb_completion,
+ ldlm_blocking_callback cb_blocking, void *cb_data)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
struct lmv_obj *obj;
int rc, mds;
ENTRY;
- lmv_connect(obd);
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+
+ if (it->it_op == IT_UNLINK) {
+ rc = lmv_enqueue_slaves(exp, lock_type, it, lock_mode,
+ data, lockh, lmm, lmmsize,
+ cb_completion, cb_blocking, cb_data);
+ RETURN(rc);
+ }
+
if (data->namelen) {
- obj = lmv_grab_obj(obd, &data->fid1, 0);
+ obj = lmv_grab_obj(obd, &data->fid1);
if (obj) {
- /* directory is splitted. look for
- * right mds for this name */
- mds = raw_name2idx(obj->objcount, data->name,
- data->namelen);
+ /* directory is splitted. look for right mds for this
+ * name */
+ mds = raw_name2idx(obj->hashtype, obj->objcount,
+ (char *)data->name, data->namelen);
data->fid1 = obj->objs[mds].fid;
lmv_put_obj(obj);
}
}
- CDEBUG(D_OTHER, "ENQUEUE '%s' on %lu/%lu\n",
- LL_IT2STR(it), (unsigned long) data->fid1.id,
- (unsigned long) data->fid1.generation);
- rc = md_enqueue(lmv->tgts[data->fid1.mds].exp, lock_type, it,
+ CDEBUG(D_OTHER, "ENQUEUE '%s' on %lu/%lu\n", LL_IT2STR(it),
+ (unsigned long)data->fid1.id, (unsigned long)data->fid1.generation);
+
+ rc = md_enqueue(lmv->tgts[data->fid1.mds].ltd_exp, lock_type, it,
lock_mode, data, lockh, lmm, lmmsize, cb_completion,
cb_blocking, cb_data);
}
int lmv_getattr_name(struct obd_export *exp, struct ll_fid *fid,
- char *filename, int namelen, unsigned long valid,
- unsigned int ea_size, struct ptlrpc_request **request)
+ char *filename, int namelen, unsigned long valid,
+ unsigned int ea_size, struct ptlrpc_request **request)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
struct ll_fid rfid = *fid;
- int rc, mds = fid->mds;
+ int rc, mds = fid->mds, loop = 0;
+ struct mds_body *body;
struct lmv_obj *obj;
ENTRY;
- lmv_connect(obd);
- CDEBUG(D_OTHER, "getattr_name for %*s on %lu/%lu/%lu\n",
- namelen - 1, filename, (unsigned long) fid->mds,
- (unsigned long) fid->id, (unsigned long) fid->generation);
- obj = lmv_grab_obj(obd, fid, 0);
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+repeat:
+ LASSERT(++loop <= 2);
+ obj = lmv_grab_obj(obd, fid);
if (obj) {
/* directory is splitted. look for right mds for this name */
- mds = raw_name2idx(obj->objcount, filename, namelen - 1);
+ mds = raw_name2idx(obj->hashtype, obj->objcount, filename, namelen - 1);
rfid = obj->objs[mds].fid;
lmv_put_obj(obj);
}
- rc = md_getattr_name(lmv->tgts[mds].exp, &rfid, filename, namelen,
- valid, ea_size, request);
+
+ CDEBUG(D_OTHER, "getattr_name for %*s on %lu/%lu/%lu -> %lu/%lu/%lu\n",
+ namelen, filename, (unsigned long)fid->mds,
+ (unsigned long)fid->id, (unsigned long)fid->generation,
+ (unsigned long)rfid.mds, (unsigned long)rfid.id,
+ (unsigned long)rfid.generation);
+
+ rc = md_getattr_name(lmv->tgts[rfid.mds].ltd_exp, &rfid, filename,
+ namelen, valid, ea_size, request);
+ if (rc == 0) {
+ /* this could be cross-node reference. in this case all we have
+ * right now is mds/ino/generation triple. we'd like to find
+ * other attributes */
+ body = lustre_msg_buf((*request)->rq_repmsg, 0, sizeof(*body));
+ LASSERT(body != NULL);
+ if (body->valid & OBD_MD_MDS) {
+ struct ptlrpc_request *req = NULL;
+ rfid = body->fid1;
+ CDEBUG(D_OTHER, "request attrs for %lu/%lu/%lu\n",
+ (unsigned long) rfid.mds,
+ (unsigned long) rfid.id,
+ (unsigned long) rfid.generation);
+ rc = md_getattr_name(lmv->tgts[rfid.mds].ltd_exp, &rfid,
+ NULL, 1, valid, ea_size, &req);
+ ptlrpc_req_finished(*request);
+ *request = req;
+ }
+ } else if (rc == -ERESTART) {
+ /* directory got splitted. time to update local object and
+ * repeat the request with proper MDS */
+ rc = lmv_get_mea_and_update_object(exp, &rfid);
+ if (rc == 0) {
+ ptlrpc_req_finished(*request);
+ goto repeat;
+ }
+ }
RETURN(rc);
}
/*
- * llite passes fid of an target inode in data->fid1 and
- * fid of directory in data->fid2
+ * llite passes fid of an target inode in data->fid1 and fid of directory in
+ * data->fid2
*/
int lmv_link(struct obd_export *exp, struct mdc_op_data *data,
struct ptlrpc_request **request)
struct lmv_obj *obj;
int rc;
ENTRY;
- lmv_connect(obd);
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+
if (data->namelen != 0) {
/* usual link request */
- obj = lmv_grab_obj(obd, &data->fid1, 0);
+ obj = lmv_grab_obj(obd, &data->fid1);
if (obj) {
- rc = raw_name2idx(obj->objcount, data->name,
- data->namelen);
+ rc = raw_name2idx(obj->hashtype, obj->objcount, data->name,
+ data->namelen);
data->fid1 = obj->objs[rc].fid;
lmv_put_obj(obj);
}
- CDEBUG(D_OTHER,"link %u/%u/%u:%*s to %u/%u/%u mds %d\n",
- (unsigned) data->fid2.mds, (unsigned) data->fid2.id,
- (unsigned) data->fid2.generation, data->namelen,
- data->name, (unsigned) data->fid1.mds,
- (unsigned) data->fid1.id,
- (unsigned) data->fid1.generation, data->fid1.mds);
+
+ CDEBUG(D_OTHER,"link %lu/%lu/%lu:%*s to %lu/%lu/%lu mds %lu\n",
+ (unsigned long)data->fid2.mds,
+ (unsigned long)data->fid2.id,
+ (unsigned long)data->fid2.generation,
+ data->namelen, data->name,
+ (unsigned long)data->fid1.mds,
+ (unsigned long)data->fid1.id,
+ (unsigned long)data->fid1.generation,
+ (unsigned long)data->fid1.mds);
} else {
/* request from MDS to acquire i_links for inode by fid1 */
- CDEBUG(D_OTHER, "inc i_nlinks for %u/%u/%u\n",
- (unsigned) data->fid1.mds, (unsigned) data->fid1.id,
- (unsigned) data->fid1.generation);
+ CDEBUG(D_OTHER, "inc i_nlinks for %lu/%lu/%lu\n",
+ (unsigned long)data->fid1.mds,
+ (unsigned long)data->fid1.id,
+ (unsigned long)data->fid1.generation);
}
- rc = md_link(lmv->tgts[data->fid1.mds].exp, data, request);
+ rc = md_link(lmv->tgts[data->fid1.mds].ltd_exp, data, request);
RETURN(rc);
}
ENTRY;
CDEBUG(D_OTHER, "rename %*s in %lu/%lu/%lu to %*s in %lu/%lu/%lu\n",
- oldlen, old, (unsigned long) data->fid1.mds,
- (unsigned long) data->fid1.id,
- (unsigned long) data->fid1.generation,
+ oldlen, old, (unsigned long)data->fid1.mds,
+ (unsigned long)data->fid1.id,
+ (unsigned long)data->fid1.generation,
newlen, new, (unsigned long) data->fid2.mds,
(unsigned long) data->fid2.id,
(unsigned long) data->fid2.generation);
-
- lmv_connect(obd);
+
+ if (!fid_equal(&data->fid1, &data->fid2))
+ CWARN("cross-node rename %lu/%lu/%lu:%*s to %lu/%lu/%lu:%*s\n",
+ (unsigned long)data->fid1.mds,
+ (unsigned long)data->fid1.id,
+ (unsigned long)data->fid1.generation, oldlen, old,
+ (unsigned long)data->fid2.mds,
+ (unsigned long)data->fid2.id,
+ (unsigned long)data->fid2.generation, newlen, new);
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
if (oldlen == 0) {
- /* MDS with old dir entry is asking another MDS
- * to create name there */
+ /* MDS with old dir entry is asking another MDS to create name
+ * there */
CDEBUG(D_OTHER,
"create %*s(%d/%d) in %lu/%lu/%lu pointing to %lu/%lu/%lu\n",
newlen, new, oldlen, newlen,
- (unsigned long) data->fid2.mds,
- (unsigned long) data->fid2.id,
- (unsigned long) data->fid2.generation,
- (unsigned long) data->fid1.mds,
- (unsigned long) data->fid1.id,
- (unsigned long) data->fid1.generation);
+ (unsigned long)data->fid2.mds,
+ (unsigned long)data->fid2.id,
+ (unsigned long)data->fid2.generation,
+ (unsigned long)data->fid1.mds,
+ (unsigned long)data->fid1.id,
+ (unsigned long)data->fid1.generation);
mds = data->fid2.mds;
goto request;
}
- obj = lmv_grab_obj(obd, &data->fid1, 0);
+ obj = lmv_grab_obj(obd, &data->fid1);
if (obj) {
- /* directory is already splitted, so we have to forward
- * request to the right MDS */
- mds = raw_name2idx(obj->objcount, old, oldlen);
+ /* directory is already splitted, so we have to forward request
+ * to the right MDS */
+ mds = raw_name2idx(obj->hashtype, obj->objcount, (char *)old, oldlen);
data->fid1 = obj->objs[mds].fid;
CDEBUG(D_OTHER, "forward to MDS #%u (%lu/%lu/%lu)\n", mds,
- (unsigned long) obj->objs[mds].fid.mds,
- (unsigned long) obj->objs[mds].fid.id,
- (unsigned long) obj->objs[mds].fid.generation);
+ (unsigned long)obj->objs[mds].fid.mds,
+ (unsigned long)obj->objs[mds].fid.id,
+ (unsigned long)obj->objs[mds].fid.generation);
+ lmv_put_obj(obj);
}
- lmv_put_obj(obj);
- obj = lmv_grab_obj(obd, &data->fid2, 0);
+ obj = lmv_grab_obj(obd, &data->fid2);
if (obj) {
- /* directory is already splitted, so we have to forward
- * request to the right MDS */
- mds = raw_name2idx(obj->objcount, new, newlen);
+ /* directory is already splitted, so we have to forward request
+ * to the right MDS */
+ mds = raw_name2idx(obj->hashtype, obj->objcount, (char *)new, newlen);
data->fid2 = obj->objs[mds].fid;
CDEBUG(D_OTHER, "forward to MDS #%u (%lu/%lu/%lu)\n", mds,
- (unsigned long) obj->objs[mds].fid.mds,
- (unsigned long) obj->objs[mds].fid.id,
- (unsigned long) obj->objs[mds].fid.generation);
+ (unsigned long)obj->objs[mds].fid.mds,
+ (unsigned long)obj->objs[mds].fid.id,
+ (unsigned long)obj->objs[mds].fid.generation);
+ lmv_put_obj(obj);
}
- lmv_put_obj(obj);
mds = data->fid1.mds;
request:
- rc = md_rename(lmv->tgts[mds].exp, data, old, oldlen,
- new, newlen, request);
+ rc = md_rename(lmv->tgts[mds].ltd_exp, data, old, oldlen,
+ new, newlen, request);
RETURN(rc);
}
int lmv_setattr(struct obd_export *exp, struct mdc_op_data *data,
- struct iattr *iattr, void *ea, int ealen, void *ea2, int ea2len,
- struct ptlrpc_request **request)
+ struct iattr *iattr, void *ea, int ealen, void *ea2,
+ int ea2len, struct ptlrpc_request **request)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
- int rc = 0, i = data->fid1.mds;
struct ptlrpc_request *req;
- struct mds_body *mds_body;
+ struct mds_body *body;
struct lmv_obj *obj;
+ int rc = 0, i;
ENTRY;
- lmv_connect(obd);
- obj = lmv_grab_obj(obd, &data->fid1, 0);
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+
+ obj = lmv_grab_obj(obd, &data->fid1);
+
CDEBUG(D_OTHER, "SETATTR for %lu/%lu/%lu, valid 0x%x%s\n",
- (unsigned long) data->fid1.mds,
- (unsigned long) data->fid1.id,
- (unsigned long) data->fid1.generation, iattr->ia_valid,
+ (unsigned long)data->fid1.mds, (unsigned long)data->fid1.id,
+ (unsigned long)data->fid1.generation, iattr->ia_valid,
obj ? ", splitted" : "");
+
if (obj) {
for (i = 0; i < obj->objcount; i++) {
data->fid1 = obj->objs[i].fid;
- rc = md_setattr(lmv->tgts[i].exp, data, iattr, ea,
- ealen, ea2, ea2len, &req);
- LASSERT(rc == 0);
+
+ rc = md_setattr(lmv->tgts[data->fid1.mds].ltd_exp, data,
+ iattr, ea, ealen, ea2, ea2len, &req);
+
if (fid_equal(&obj->fid, &obj->objs[i].fid)) {
- /* this is master object and this request
- * should be returned back to llite */
+ /* this is master object and this request should
+ * be returned back to llite */
*request = req;
} else {
ptlrpc_req_finished(req);
}
+
+ if (rc)
+ break;
}
lmv_put_obj(obj);
} else {
- LASSERT(data->fid1.mds < lmv->count);
- rc = md_setattr(lmv->tgts[i].exp, data, iattr, ea, ealen,
- ea2, ea2len, request);
+ LASSERT(data->fid1.mds < lmv->desc.ld_tgt_count);
+ rc = md_setattr(lmv->tgts[data->fid1.mds].ltd_exp, data,
+ iattr, ea, ealen, ea2, ea2len, request);
if (rc == 0) {
- mds_body = lustre_msg_buf((*request)->rq_repmsg, 0,
- sizeof(*mds_body));
- LASSERT(mds_body != NULL);
- LASSERT(mds_body->mds == i);
+ body = lustre_msg_buf((*request)->rq_repmsg, 0,
+ sizeof(*body));
+ LASSERT(body != NULL);
+ LASSERT(body->mds == data->fid1.mds);
}
}
RETURN(rc);
struct lmv_obd *lmv = &obd->u.lmv;
int rc;
ENTRY;
- lmv_connect(obd);
- rc = md_sync(lmv->tgts[0].exp, fid, request);
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+
+ rc = md_sync(lmv->tgts[fid->mds].ltd_exp, fid, request);
RETURN(rc);
}
-int lmv_dirobj_blocking_ast(struct ldlm_lock *lock,
- struct ldlm_lock_desc *desc, void *data, int flag)
+int lmv_dirobj_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
+ void *data, int flag)
{
struct lustre_handle lockh;
struct lmv_obj *obj;
case LDLM_CB_CANCELING:
/* time to drop cached attrs for dirobj */
obj = lock->l_ast_data;
- if (!obj)
- break;
-
- CDEBUG(D_OTHER, "cancel %s on %lu/%lu, master %lu/%lu/%lu\n",
- lock->l_resource->lr_name.name[3] == 1 ?
- "LOOKUP" : "UPDATE",
- (unsigned long) lock->l_resource->lr_name.name[0],
- (unsigned long) lock->l_resource->lr_name.name[1],
- (unsigned long) obj->fid.mds,
- (unsigned long) obj->fid.id,
- (unsigned long) obj->fid.generation);
+ if (obj) {
+ CDEBUG(D_OTHER, "cancel %s on %lu/%lu, master %lu/%lu/%lu\n",
+ lock->l_resource->lr_name.name[3] == 1 ? "LOOKUP" : "UPDATE",
+ (unsigned long)lock->l_resource->lr_name.name[0],
+ (unsigned long)lock->l_resource->lr_name.name[1],
+ (unsigned long)obj->fid.mds, (unsigned long)obj->fid.id,
+ (unsigned long)obj->fid.generation);
+ lmv_put_obj(obj);
+ }
break;
default:
LBUG();
struct lmv_obj *obj;
int rc, i;
ENTRY;
- lmv_connect(obd);
-
- LASSERT(mdc_fid->mds < lmv->count);
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+
+ LASSERT(mdc_fid->mds < lmv->desc.ld_tgt_count);
CDEBUG(D_OTHER, "READPAGE at %llu from %lu/%lu/%lu\n",
offset, (unsigned long) rfid.mds,
(unsigned long) rfid.id,
(unsigned long) rfid.generation);
- obj = lmv_grab_obj(obd, mdc_fid, 0);
+ obj = lmv_grab_obj(obd, mdc_fid);
if (obj) {
- /* find dirobj containing page with requested offset */
- /* FIXME: what about protecting cached attrs here? */
+ lmv_lock_obj(obj);
+
+ /* find dirobj containing page with requested offset. */
for (i = 0; i < obj->objcount; i++) {
if (offset < obj->objs[i].size)
break;
offset -= obj->objs[i].size;
}
rfid = obj->objs[i].fid;
+
+ lmv_unlock_obj(obj);
+ lmv_put_obj(obj);
+
CDEBUG(D_OTHER, "forward to %lu/%lu/%lu with offset %lu\n",
- (unsigned long) rfid.mds,
- (unsigned long) rfid.id,
- (unsigned long) rfid.generation,
- (unsigned long) offset);
+ (unsigned long)rfid.mds, (unsigned long)rfid.id,
+ (unsigned long)rfid.generation, (unsigned long)offset);
}
- rc = md_readpage(lmv->tgts[rfid.mds].exp, &rfid, offset, page, request);
- if (rc == 0 && !fid_equal(&rfid, mdc_fid)) {
- /* this page isn't from master object. to avoid
- * ./.. duplication in directory, we have to remove them
- * from all slave objects */
+ rc = md_readpage(lmv->tgts[rfid.mds].ltd_exp, &rfid, offset,
+ page, request);
+
+ if (rc == 0 && !fid_equal(&rfid, mdc_fid))
+ /* this page isn't from master object. To avoid "." and ".."
+ * duplication in directory, we have to remove them from all
+ * slave objects */
lmv_remove_dots(page);
- }
-
- lmv_put_obj(obj);
+
+ RETURN(rc);
+}
+
+int lmv_unlink_slaves(struct obd_export *exp, struct mdc_op_data *data,
+ struct ptlrpc_request **req)
+{
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct mea *mea = data->mea1;
+ struct mdc_op_data data2;
+ int i, rc = 0, mds;
+ ENTRY;
+
+ LASSERT(mea != NULL);
+ for (i = 0; i < mea->mea_count; i++) {
+ memset(&data2, 0, sizeof(data2));
+ data2.fid1 = mea->mea_fids[i];
+ data2.create_mode = MDS_MODE_DONT_LOCK | S_IFDIR;
+ mds = data2.fid1.mds;
+ if (lmv->tgts[mds].ltd_exp == NULL)
+ continue;
+
+ rc = md_unlink(lmv->tgts[mds].ltd_exp, &data2, req);
+ CDEBUG(D_OTHER, "unlink slave %lu/%lu/%lu -> %d\n",
+ (unsigned long) mea->mea_fids[i].mds,
+ (unsigned long) mea->mea_fids[i].id,
+ (unsigned long) mea->mea_fids[i].generation, rc);
+ if (*req) {
+ ptlrpc_req_finished(*req);
+ *req = NULL;
+ }
+ if (rc)
+ break;
+ }
RETURN(rc);
}
+int lmv_delete_object(struct obd_export *exp, struct ll_fid *fid)
+{
+ ENTRY;
+
+ if (!lmv_delete_obj(exp, fid)) {
+ CDEBUG(D_OTHER, "Object %lu/%lu/%lu is not found.\n",
+ (unsigned long)fid->mds, (unsigned long)fid->id,
+ (unsigned long)fid->generation);
+ }
+
+ RETURN(0);
+}
+
int lmv_unlink(struct obd_export *exp, struct mdc_op_data *data,
struct ptlrpc_request **request)
{
struct lmv_obd *lmv = &obd->u.lmv;
int rc, i = 0;
ENTRY;
- lmv_connect(obd);
- if (data->namelen != 0) {
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
+
+ if (data->namelen == 0 && data->mea1 != NULL) {
+ /* mds asks to remove slave objects */
+ rc = lmv_unlink_slaves(exp, data, request);
+ RETURN(rc);
+ } else if (data->namelen != 0) {
struct lmv_obj *obj;
- obj = lmv_grab_obj(obd, &data->fid1, 0);
+
+ obj = lmv_grab_obj(obd, &data->fid1);
if (obj) {
- i = raw_name2idx(obj->objcount, data->name,
+ i = raw_name2idx(obj->hashtype, obj->objcount, data->name,
data->namelen);
data->fid1 = obj->objs[i].fid;
lmv_put_obj(obj);
(unsigned long) data->fid1.id,
(unsigned long) data->fid1.generation);
}
- rc = md_unlink(lmv->tgts[data->fid1.mds].exp, data, request);
+ rc = md_unlink(lmv->tgts[data->fid1.mds].ltd_exp, data, request);
RETURN(rc);
}
struct obd_device *lmv_get_real_obd(struct obd_export *exp,
- char *name, int len)
+ char *name, int len)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
+ int rc;
ENTRY;
- lmv_connect(obd);
- obd = lmv->tgts[0].exp->exp_obd;
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(ERR_PTR(rc));
+#warning "we need well-desgined readdir() implementation to remove this mess"
+ obd = lmv->tgts[0].ltd_exp->exp_obd;
EXIT;
return obd;
}
if (lmv->connected == 0)
RETURN(0);
- /* FIXME: error handling? */
- for (i = 0; i < lmv->count; i++)
- rc = obd_init_ea_size(lmv->tgts[i].exp, easize, cookiesize);
+ for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
+ if (lmv->tgts[i].ltd_exp == NULL) {
+ CWARN("%s: NULL export for %d\n", obd->obd_name, i);
+ continue;
+ }
+
+ rc = obd_init_ea_size(lmv->tgts[i].ltd_exp, easize, cookiesize);
+ if (rc) {
+ CERROR("obd_init_ea_size() failed on MDT target %d, "
+ "error %d.\n", i, rc);
+ break;
+ }
+ }
RETURN(rc);
}
struct lov_stripe_md *obj_mdp = &obj_md;
int rc = 0;
ENTRY;
- lmv_connect(obd);
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
LASSERT(ea == NULL);
- LASSERT(oa->o_mds < lmv->count);
+ LASSERT(oa->o_mds < lmv->desc.ld_tgt_count);
- rc = obd_create(lmv->tgts[oa->o_mds].exp, oa, &obj_mdp, oti);
- LASSERT(rc == 0);
+ rc = obd_create(lmv->tgts[oa->o_mds].ltd_exp, oa, &obj_mdp, oti);
RETURN(rc);
}
* to be called from MDS only
*/
int lmv_obd_create(struct obd_export *exp, struct obdo *oa,
- struct lov_stripe_md **ea, struct obd_trans_info *oti)
+ struct lov_stripe_md **ea, struct obd_trans_info *oti)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
- struct mea *mea;
int i, c, rc = 0;
+ struct mea *mea;
struct ll_fid mfid;
+ int lcount;
ENTRY;
- lmv_connect(obd);
+
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
LASSERT(oa != NULL);
}
if (*ea == NULL) {
- rc = obd_alloc_diskmd(exp, (struct lov_mds_md **) ea);
- LASSERT(*ea != NULL);
+ rc = obd_alloc_diskmd(exp, (struct lov_mds_md **)ea);
+ if (rc < 0) {
+ CERROR("obd_alloc_diskmd() failed, error %d\n",
+ rc);
+ RETURN(rc);
+ }
+
+ if (*ea == NULL)
+ RETURN(-EINVAL);
}
- mea = (struct mea *) *ea;
+ rc = 0;
mfid.id = oa->o_id;
mfid.generation = oa->o_generation;
- rc = 0;
- if (!mea->mea_count || mea->mea_count > lmv->count)
- mea->mea_count = lmv->count;
+
+ mea = (struct mea *)*ea;
+ if (!mea->mea_count || mea->mea_count > lmv->desc.ld_tgt_count)
+ mea->mea_count = lmv->desc.ld_tgt_count;
+ mea->mea_magic = MEA_MAGIC_ALL_CHARS;
mea->mea_master = -1;
-
- /* FIXME: error handling? */
- for (i = 0, c = 0; c < mea->mea_count && i < lmv->count; i++) {
+ lcount = lmv->desc.ld_tgt_count;
+ for (i = 0, c = 0; c < mea->mea_count && i < lcount; i++) {
struct lov_stripe_md obj_md;
struct lov_stripe_md *obj_mdp = &obj_md;
- if (lmv->tgts[i].exp == NULL) {
+ if (lmv->tgts[i].ltd_exp == NULL) {
/* this is master MDS */
mea->mea_fids[c].id = mfid.id;
mea->mea_fids[c].generation = mfid.generation;
continue;
}
- /* "Master" MDS should always be part of stripped dir, so
- scan for it */
+ /* "master" MDS should always be part of stripped dir, so scan
+ for it. */
if (mea->mea_master == -1 && c == mea->mea_count - 1)
continue;
oa->o_valid = OBD_MD_FLGENER | OBD_MD_FLTYPE | OBD_MD_FLMODE
- | OBD_MD_FLUID | OBD_MD_FLGID;
+ | OBD_MD_FLUID | OBD_MD_FLGID | OBD_MD_FLID;
- rc = obd_create(lmv->tgts[c].exp, oa, &obj_mdp, oti);
- /* FIXME: error handling here */
- LASSERT(rc == 0);
+ rc = obd_create(lmv->tgts[c].ltd_exp, oa, &obj_mdp, oti);
+ if (rc) {
+ CERROR("obd_create() failed on MDT target %d, "
+ "error %d\n", c, rc);
+ RETURN(rc);
+ }
mea->mea_fids[c].id = oa->o_id;
mea->mea_fids[c].generation = oa->o_generation;
}
static int lmv_get_info(struct obd_export *exp, __u32 keylen,
- void *key, __u32 *vallen, void *val)
+ void *key, __u32 *vallen, void *val)
{
struct obd_device *obd;
struct lmv_obd *lmv;
if (keylen == 6 && memcmp(key, "mdsize", 6) == 0) {
__u32 *mdsize = val;
*vallen = sizeof(__u32);
- *mdsize = sizeof(struct ll_fid) * lmv->count
+ *mdsize = sizeof(struct ll_fid) * lmv->desc.ld_tgt_count
+ sizeof(struct mea);
RETURN(0);
} else if (keylen == 6 && memcmp(key, "mdsnum", 6) == 0) {
__u32 *mdsnum = val;
int i;
- for (i = 0, tgts = lmv->tgts; i < lmv->count; i++, tgts++) {
+ for (i = 0, tgts = lmv->tgts; i < lmv->desc.ld_tgt_count; i++, tgts++) {
if (obd_uuid_equals(&tgts->uuid, cluuid)) {
*vallen = sizeof(__u32);
*mdsnum = i;
RETURN(-EINVAL);
}
lmv = &obd->u.lmv;
- lmv_connect(obd);
-
- if (keylen >= strlen("client") && strcmp(key, "client") == 0) {
- struct lmv_tgt_desc *tgts;
- int i, rc;
- for (i = 0, tgts = lmv->tgts; i < lmv->count; i++, tgts++) {
- rc = obd_set_info(tgts->exp, keylen, key, vallen, val);
- if (rc)
- RETURN(rc);
- }
+ if (keylen >= strlen("inter_mds") && strcmp(key, "inter_mds") == 0) {
+ lmv->server_timeout = 1;
+ lmv_set_timeouts(obd);
RETURN(0);
}
struct lmv_obd *lmv = &obd->u.lmv;
int mea_size;
ENTRY;
- lmv_connect(obd);
- mea_size = sizeof(struct ll_fid) * lmv->count + sizeof(struct mea);
+ mea_size = sizeof(struct ll_fid) *
+ lmv->desc.ld_tgt_count + sizeof(struct mea);
if (!lmmp)
RETURN(mea_size);
RETURN(0);
}
- if (!*lmmp) {
+ if (*lmmp == NULL) {
OBD_ALLOC(*lmmp, mea_size);
- if (!*lmmp)
+ if (*lmmp == NULL)
RETURN(-ENOMEM);
}
}
int lmv_unpackmd(struct obd_export *exp, struct lov_stripe_md **mem_tgt,
- struct lov_mds_md *disk_src, int mdsize)
+ struct lov_mds_md *disk_src, int mdsize)
{
struct obd_device *obd = class_exp2obd(exp);
struct lmv_obd *lmv = &obd->u.lmv;
struct mea *mea = (void *) disk_src;
int mea_size;
ENTRY;
- lmv_connect(obd);
- mea_size = sizeof(struct ll_fid) * lmv->count + sizeof(struct mea);
+ mea_size = sizeof(struct ll_fid) *
+ lmv->desc.ld_tgt_count + sizeof(struct mea);
if (mem_tgt == NULL)
return mea_size;
LASSERT(mea_size == mdsize);
OBD_ALLOC(*tmea, mea_size);
- /* FIXME: error handling here */
- LASSERT(*tmea != NULL);
+ if (*tmea == NULL)
+ RETURN(-ENOMEM);
if (!disk_src)
RETURN(mea_size);
}
int lmv_brw(int rw, struct obd_export *exp, struct obdo *oa,
- struct lov_stripe_md *ea, obd_count oa_bufs,
- struct brw_page *pgarr, struct obd_trans_info *oti)
+ struct lov_stripe_md *ea, obd_count oa_bufs,
+ struct brw_page *pgarr, struct obd_trans_info *oti)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
LASSERT(oa != NULL);
LASSERT(ea != NULL);
LASSERT(pgarr != NULL);
- LASSERT(oa->o_mds < lmv->count);
+ LASSERT(oa->o_mds < lmv->desc.ld_tgt_count);
oa->o_gr = mea->mea_fids[oa->o_mds].generation;
oa->o_id = mea->mea_fids[oa->o_mds].id;
oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
- err = obd_brw(rw, lmv->tgts[oa->o_mds].exp, oa,
- NULL, oa_bufs, pgarr, oti);
+ err = obd_brw(rw, lmv->tgts[oa->o_mds].ltd_exp, oa,
+ NULL, oa_bufs, pgarr, oti);
RETURN(err);
}
struct obd_ops lmv_obd_ops = {
- o_owner: THIS_MODULE,
- o_attach: lmv_attach,
- o_detach: lmv_detach,
- o_setup: lmv_setup,
- o_cleanup: lmv_cleanup,
- o_connect: lmv_connect_fake,
- o_disconnect: lmv_disconnect,
- o_statfs: lmv_statfs,
- o_get_info: lmv_get_info,
- o_set_info: lmv_set_info,
- o_create: lmv_obd_create,
- o_packmd: lmv_packmd,
- o_unpackmd: lmv_unpackmd,
- o_brw: lmv_brw,
- o_init_ea_size: lmv_init_ea_size,
+ .o_owner = THIS_MODULE,
+ .o_attach = lmv_attach,
+ .o_detach = lmv_detach,
+ .o_setup = lmv_setup,
+ .o_cleanup = lmv_cleanup,
+ .o_connect = lmv_connect,
+ .o_disconnect = lmv_disconnect,
+ .o_statfs = lmv_statfs,
+ .o_get_info = lmv_get_info,
+ .o_set_info = lmv_set_info,
+ .o_create = lmv_obd_create,
+ .o_packmd = lmv_packmd,
+ .o_unpackmd = lmv_unpackmd,
+ .o_brw = lmv_brw,
+ .o_init_ea_size = lmv_init_ea_size,
+ .o_notify = lmv_notify,
+ .o_iocontrol = lmv_iocontrol,
};
struct md_ops lmv_md_ops = {
- m_getstatus: lmv_getstatus,
- m_getattr: lmv_getattr,
- m_change_cbdata: lmv_change_cbdata,
- m_change_cbdata_name: lmv_change_cbdata_name,
- m_close: lmv_close,
- m_create: lmv_create,
- m_done_writing: lmv_done_writing,
- m_enqueue: lmv_enqueue,
- m_getattr_name: lmv_getattr_name,
- m_intent_lock: lmv_intent_lock,
- m_link: lmv_link,
- m_rename: lmv_rename,
- m_setattr: lmv_setattr,
- m_sync: lmv_sync,
- m_readpage: lmv_readpage,
- m_unlink: lmv_unlink,
- m_get_real_obd: lmv_get_real_obd,
- m_valid_attrs: lmv_valid_attrs,
+ .m_getstatus = lmv_getstatus,
+ .m_getattr = lmv_getattr,
+ .m_change_cbdata = lmv_change_cbdata,
+ .m_change_cbdata_name = lmv_change_cbdata_name,
+ .m_close = lmv_close,
+ .m_create = lmv_create,
+ .m_done_writing = lmv_done_writing,
+ .m_enqueue = lmv_enqueue,
+ .m_getattr_name = lmv_getattr_name,
+ .m_intent_lock = lmv_intent_lock,
+ .m_link = lmv_link,
+ .m_rename = lmv_rename,
+ .m_setattr = lmv_setattr,
+ .m_sync = lmv_sync,
+ .m_readpage = lmv_readpage,
+ .m_unlink = lmv_unlink,
+ .m_get_real_obd = lmv_get_real_obd,
+ .m_valid_attrs = lmv_valid_attrs,
+ .m_delete_object = lmv_delete_object,
};
-//#ifndef LPROCFS
-static struct lprocfs_vars lprocfs_module_vars[] = { {0} };
-static struct lprocfs_vars lprocfs_obd_vars[] = { {0} };
-//#else
-LPROCFS_INIT_VARS(lmv, lprocfs_module_vars, lprocfs_obd_vars)
-
int __init lmv_init(void)
{
struct lprocfs_static_vars lvars;
RETURN(rc);
}
+#ifdef __KERNEL__
static void lmv_exit(void)
{
class_unregister_type(OBD_LMV_DEVICENAME);
}
-#ifdef __KERNEL__
MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
MODULE_DESCRIPTION("Lustre Logical Metadata Volume OBD driver");
MODULE_LICENSE("GPL");
module_init(lmv_init);
module_exit(lmv_exit);
#endif
-
git://git.whamcloud.com / fs / lustre-release.git / blobdiff