*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*/
#define DEBUG_SUBSYSTEM S_LMV
#include <linux/module.h>
#include <linux/init.h>
#include <linux/user_namespace.h>
-#ifdef HAVE_UIDGID_HEADER
-# include <linux/uidgid.h>
-#endif
+#include <linux/uidgid.h>
#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/mm.h>
#include <cl_object.h>
#include <lustre_fid.h>
#include <uapi/linux/lustre/lustre_ioctl.h>
+#include <lustre_ioctl_old.h>
#include <lustre_kernelcomm.h>
#include "lmv_internal.h"
static int lmv_check_connect(struct obd_device *obd);
+static inline bool lmv_op_default_rr_mkdir(const struct md_op_data *op_data);
void lmv_activate_target(struct lmv_obd *lmv, struct lmv_tgt_desc *tgt,
int activate)
{
- if (tgt->ltd_active == activate)
- return;
+ if (tgt->ltd_active == activate)
+ return;
- tgt->ltd_active = activate;
- lmv->desc.ld_active_tgt_count += (activate ? 1 : -1);
+ tgt->ltd_active = activate;
+ lmv->lmv_mdt_descs.ltd_lmv_desc.ld_active_tgt_count +=
+ (activate ? 1 : -1);
tgt->ltd_exp->exp_obd->obd_inactive = !activate;
}
const struct obd_uuid *uuid,
int activate)
{
- struct lmv_tgt_desc *tgt = NULL;
- struct obd_device *obd;
- __u32 i;
- int rc = 0;
+ struct lu_tgt_desc *tgt = NULL;
+ struct obd_device *obd;
+ int 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; i < lmv->desc.ld_tgt_count; i++) {
- tgt = lmv->tgts[i];
- if (tgt == NULL || tgt->ltd_exp == NULL)
- continue;
-
- CDEBUG(D_INFO, "Target idx %d is %s conn %#llx\n", i,
- tgt->ltd_uuid.uuid, tgt->ltd_exp->exp_handle.h_cookie);
+ lmv_foreach_connected_tgt(lmv, tgt) {
+ CDEBUG(D_INFO, "Target idx %d is %s conn %#llx\n",
+ tgt->ltd_index, tgt->ltd_uuid.uuid,
+ tgt->ltd_exp->exp_handle.h_cookie);
if (obd_uuid_equals(uuid, &tgt->ltd_uuid))
break;
}
- if (i == lmv->desc.ld_tgt_count)
- GOTO(out_lmv_lock, rc = -EINVAL);
+ if (!tgt)
+ GOTO(out_lmv_lock, rc = -EINVAL);
- obd = class_exp2obd(tgt->ltd_exp);
- if (obd == NULL)
- GOTO(out_lmv_lock, rc = -ENOTCONN);
+ obd = class_exp2obd(tgt->ltd_exp);
+ if (obd == NULL)
+ GOTO(out_lmv_lock, 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);
+ 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, tgt->ltd_index);
+ LASSERT(strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) == 0);
- if (tgt->ltd_active == activate) {
- CDEBUG(D_INFO, "OBD %p already %sactive!\n", obd,
- activate ? "" : "in");
- GOTO(out_lmv_lock, rc);
- }
+ if (tgt->ltd_active == activate) {
+ CDEBUG(D_INFO, "OBD %p already %sactive!\n", obd,
+ activate ? "" : "in");
+ GOTO(out_lmv_lock, rc);
+ }
- CDEBUG(D_INFO, "Marking OBD %p %sactive\n", obd,
- activate ? "" : "in");
- lmv_activate_target(lmv, tgt, activate);
- EXIT;
+ CDEBUG(D_INFO, "Marking OBD %p %sactive\n", obd,
+ activate ? "" : "in");
+ lmv_activate_target(lmv, tgt, activate);
+ EXIT;
out_lmv_lock:
spin_unlock(&lmv->lmv_lock);
return rc;
}
-struct obd_uuid *lmv_get_uuid(struct obd_export *exp)
+struct lu_tgt_desc *lmv_tgt_retry(struct lmv_obd *lmv, __u32 index)
+{
+ struct obd_device *obd = lmv2obd_dev(lmv);
+ struct lu_tgt_desc *tgt;
+ static time64_t next_print;
+ time64_t retry_limit = 0;
+ time64_t now;
+ unsigned int level;
+ int rc;
+
+ might_sleep();
+retry:
+ tgt = lmv_tgt(lmv, index);
+ if (likely(tgt && tgt->ltd_exp))
+ return tgt;
+
+ now = ktime_get_seconds();
+ if (retry_limit == 0) {
+ level = now > next_print ? D_WARNING : D_INFO;
+ retry_limit = now + RECONNECT_DELAY_MAX;
+ } else if (now > retry_limit) {
+ level = D_ERROR;
+ } else {
+ level = D_INFO;
+ }
+ CDEBUG_LIMIT(level, index < lmv->lmv_mdt_count ?
+ "%s: MDT index %u/%u not configured\n" :
+ "%s: MDT index %u more than MDT count %u\n",
+ obd->obd_name, index, lmv->lmv_mdt_count);
+
+ if (index >= LOV_V1_INSANE_STRIPE_COUNT)
+ return NULL;
+
+ if (now > next_print) {
+ LCONSOLE_INFO("%s: wait %ds while client connects to new MDT\n",
+ obd->obd_name, (int)(retry_limit - now));
+ next_print = retry_limit + 600;
+ }
+ if (now < retry_limit) {
+ rc = schedule_timeout_interruptible(cfs_time_seconds(1));
+ if (rc == 0)
+ goto retry;
+ }
+
+ return NULL;
+}
+
+static struct obd_uuid *lmv_get_uuid(struct obd_export *exp)
{
- struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
- struct lmv_tgt_desc *tgt = lmv->tgts[0];
+ struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
+ struct lmv_tgt_desc *tgt = lmv_tgt(lmv, 0);
- return (tgt == NULL) ? NULL : obd_get_uuid(tgt->ltd_exp);
+ return tgt ? obd_get_uuid(tgt->ltd_exp) : NULL;
}
static int lmv_notify(struct obd_device *obd, struct obd_device *watched,
enum obd_notify_event ev)
{
- struct obd_connect_data *conn_data;
- struct lmv_obd *lmv = &obd->u.lmv;
- struct obd_uuid *uuid;
- int rc = 0;
- ENTRY;
-
- 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_target_uuid;
- if (ev == OBD_NOTIFY_ACTIVE || ev == OBD_NOTIFY_INACTIVE) {
- /*
- * Set MDC as active before notifying the observer, so the
- * observer can use the MDC normally.
- */
- rc = lmv_set_mdc_active(lmv, uuid,
- ev == OBD_NOTIFY_ACTIVE);
- if (rc) {
- CERROR("%sactivation of %s failed: %d\n",
- ev == OBD_NOTIFY_ACTIVE ? "" : "de",
- uuid->uuid, rc);
- RETURN(rc);
- }
+ struct obd_connect_data *conn_data;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct obd_uuid *uuid;
+ int rc = 0;
+
+ ENTRY;
+
+ 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_target_uuid;
+ if (ev == OBD_NOTIFY_ACTIVE || ev == OBD_NOTIFY_INACTIVE) {
+ /*
+ * Set MDC as active before notifying the observer, so the
+ * observer can use the MDC normally.
+ */
+ rc = lmv_set_mdc_active(lmv, uuid,
+ ev == OBD_NOTIFY_ACTIVE);
+ if (rc) {
+ CERROR("%sactivation of %s failed: %d\n",
+ ev == OBD_NOTIFY_ACTIVE ? "" : "de",
+ uuid->uuid, rc);
+ RETURN(rc);
+ }
} else if (ev == OBD_NOTIFY_OCD) {
conn_data = &watched->u.cli.cl_import->imp_connect_data;
/*
obd->obd_self_export->exp_connect_data = *conn_data;
}
- /*
- * Pass the notification up the chain.
- */
+ /* Pass the notification up the chain. */
if (obd->obd_observer)
rc = obd_notify(obd->obd_observer, watched, ev);
struct lustre_handle conn = { 0 };
struct obd_export *exp;
int rc;
+
ENTRY;
rc = class_connect(&conn, obd, cluuid);
static int lmv_init_ea_size(struct obd_export *exp, __u32 easize,
__u32 def_easize)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- __u32 i;
- int rc = 0;
- int change = 0;
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
+ int change = 0;
+ int rc = 0;
+
ENTRY;
- if (lmv->max_easize < easize) {
- lmv->max_easize = easize;
- change = 1;
- }
- if (lmv->max_def_easize < def_easize) {
- lmv->max_def_easize = def_easize;
- change = 1;
- }
+ if (lmv->max_easize < easize) {
+ lmv->max_easize = easize;
+ change = 1;
+ }
+ if (lmv->max_def_easize < def_easize) {
+ lmv->max_def_easize = def_easize;
+ change = 1;
+ }
if (change == 0)
RETURN(0);
if (lmv->connected == 0)
RETURN(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) {
- CWARN("%s: NULL export for %d\n", obd->obd_name, i);
- continue;
- }
+ lmv_foreach_connected_tgt(lmv, tgt) {
if (!tgt->ltd_active)
continue;
rc = md_init_ea_size(tgt->ltd_exp, easize, def_easize);
if (rc) {
- CERROR("%s: obd_init_ea_size() failed on MDT target %d:"
- " rc = %d\n", obd->obd_name, i, rc);
+ CERROR("%s: obd_init_ea_size() failed on MDT target %d: rc = %d\n",
+ obd->obd_name, tgt->ltd_index, rc);
break;
}
}
#define MAX_STRING_SIZE 128
-int lmv_connect_mdc(struct obd_device *obd, struct lmv_tgt_desc *tgt)
+static int lmv_connect_mdc(struct obd_device *obd, struct lmv_tgt_desc *tgt)
{
- struct lmv_obd *lmv = &obd->u.lmv;
- struct obd_device *mdc_obd;
- struct obd_export *mdc_exp;
- struct lu_fld_target target;
- int rc;
- ENTRY;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct obd_device *mdc_obd;
+ struct obd_export *mdc_exp;
+ struct lu_fld_target target;
+ int rc;
+
+ ENTRY;
mdc_obd = class_find_client_obd(&tgt->ltd_uuid, LUSTRE_MDC_NAME,
&obd->obd_uuid);
rc = obd_connect(NULL, &mdc_exp, mdc_obd, &obd->obd_uuid,
&lmv->conn_data, lmv->lmv_cache);
- if (rc) {
- CERROR("target %s connect error %d\n", tgt->ltd_uuid.uuid, rc);
- RETURN(rc);
- }
+ if (rc) {
+ CERROR("target %s connect error %d\n", tgt->ltd_uuid.uuid, rc);
+ RETURN(rc);
+ }
- /*
- * Init fid sequence client for this mdc and add new fld target.
- */
+ /* Init fid sequence client for this mdc and add new fld target. */
rc = obd_fid_init(mdc_obd, mdc_exp, LUSTRE_SEQ_METADATA);
if (rc)
RETURN(rc);
}
if (obd->obd_observer) {
- /*
- * Tell the observer about the new target.
- */
+ /* Tell the observer about the new target. */
rc = obd_notify(obd->obd_observer, mdc_exp->exp_obd,
OBD_NOTIFY_ACTIVE);
if (rc) {
tgt->ltd_active = 1;
tgt->ltd_exp = mdc_exp;
- lmv->desc.ld_active_tgt_count++;
+ lmv->lmv_mdt_descs.ltd_lmv_desc.ld_active_tgt_count++;
md_init_ea_size(tgt->ltd_exp, lmv->max_easize, lmv->max_def_easize);
- rc = lqos_add_tgt(&lmv->lmv_qos, tgt);
+ rc = lu_qos_add_tgt(&lmv->lmv_qos, tgt);
if (rc) {
obd_disconnect(mdc_exp);
RETURN(rc);
}
CDEBUG(D_CONFIG, "Connected to %s(%s) successfully (%d)\n",
- mdc_obd->obd_name, mdc_obd->obd_uuid.uuid,
- atomic_read(&obd->obd_refcount));
+ mdc_obd->obd_name, mdc_obd->obd_uuid.uuid,
+ kref_read(&obd->obd_refcount));
lmv_statfs_check_update(obd, tgt);
RETURN(0);
}
-static void lmv_del_target(struct lmv_obd *lmv, int index)
+static void lmv_del_target(struct lmv_obd *lmv, struct lu_tgt_desc *tgt)
{
- if (lmv->tgts[index] == NULL)
- return;
-
- lqos_del_tgt(&lmv->lmv_qos, lmv->tgts[index]);
-
- OBD_FREE_PTR(lmv->tgts[index]);
- lmv->tgts[index] = NULL;
- return;
+ LASSERT(tgt);
+ ltd_del_tgt(&lmv->lmv_mdt_descs, tgt);
+ OBD_FREE_PTR(tgt);
}
static int lmv_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
struct obd_device *mdc_obd;
struct lmv_obd *lmv = &obd->u.lmv;
struct lmv_tgt_desc *tgt;
- int orig_tgt_count = 0;
+ struct lu_tgt_descs *ltd = &lmv->lmv_mdt_descs;
int rc = 0;
ENTRY;
RETURN(-EINVAL);
}
- mutex_lock(&lmv->lmv_init_mutex);
- if ((index < lmv->tgts_size) && (lmv->tgts[index] != NULL)) {
- tgt = lmv->tgts[index];
- CERROR("%s: UUID %s already assigned at LMV target index %d:"
- " rc = %d\n", obd->obd_name,
- obd_uuid2str(&tgt->ltd_uuid), index, -EEXIST);
- mutex_unlock(&lmv->lmv_init_mutex);
- RETURN(-EEXIST);
- }
-
- if (index >= lmv->tgts_size) {
- /* We need to reallocate the lmv target array. */
- struct lmv_tgt_desc **newtgts, **old = NULL;
- __u32 newsize = 1;
- __u32 oldsize = 0;
-
- while (newsize < index + 1)
- newsize = newsize << 1;
- OBD_ALLOC(newtgts, sizeof(*newtgts) * newsize);
- if (newtgts == NULL) {
- mutex_unlock(&lmv->lmv_init_mutex);
- RETURN(-ENOMEM);
- }
-
- if (lmv->tgts_size) {
- memcpy(newtgts, lmv->tgts,
- sizeof(*newtgts) * lmv->tgts_size);
- old = lmv->tgts;
- oldsize = lmv->tgts_size;
- }
-
- lmv->tgts = newtgts;
- lmv->tgts_size = newsize;
- smp_rmb();
- if (old)
- OBD_FREE(old, sizeof(*old) * oldsize);
-
- CDEBUG(D_CONFIG, "tgts: %p size: %d\n", lmv->tgts,
- lmv->tgts_size);
- }
-
OBD_ALLOC_PTR(tgt);
- if (!tgt) {
- mutex_unlock(&lmv->lmv_init_mutex);
+ if (!tgt)
RETURN(-ENOMEM);
- }
mutex_init(&tgt->ltd_fid_mutex);
tgt->ltd_index = index;
tgt->ltd_uuid = *uuidp;
tgt->ltd_active = 0;
- lmv->tgts[index] = tgt;
- if (index >= lmv->desc.ld_tgt_count) {
- orig_tgt_count = lmv->desc.ld_tgt_count;
- lmv->desc.ld_tgt_count = index + 1;
- }
- if (lmv->connected == 0) {
+ mutex_lock(<d->ltd_mutex);
+ rc = ltd_add_tgt(ltd, tgt);
+ mutex_unlock(<d->ltd_mutex);
+
+ if (rc)
+ GOTO(out_tgt, rc);
+
+ if (!lmv->connected)
/* lmv_check_connect() will connect this target. */
- mutex_unlock(&lmv->lmv_init_mutex);
RETURN(0);
- }
- /* Otherwise let's connect it ourselves */
- mutex_unlock(&lmv->lmv_init_mutex);
rc = lmv_connect_mdc(obd, tgt);
- if (rc != 0) {
- spin_lock(&lmv->lmv_lock);
- if (lmv->desc.ld_tgt_count == index + 1)
- lmv->desc.ld_tgt_count = orig_tgt_count;
- memset(tgt, 0, sizeof(*tgt));
- spin_unlock(&lmv->lmv_lock);
- } else {
+ if (!rc) {
int easize = sizeof(struct lmv_stripe_md) +
- lmv->desc.ld_tgt_count * sizeof(struct lu_fid);
+ lmv->lmv_mdt_count * sizeof(struct lu_fid);
+
lmv_init_ea_size(obd->obd_self_export, easize, 0);
}
RETURN(rc);
+
+out_tgt:
+ OBD_FREE_PTR(tgt);
+ return rc;
}
static int lmv_check_connect(struct obd_device *obd)
{
- struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_tgt_desc *tgt;
- __u32 i;
- int rc;
- int easize;
- ENTRY;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
+ int easize;
+ int rc;
- if (lmv->connected)
- RETURN(0);
+ ENTRY;
- mutex_lock(&lmv->lmv_init_mutex);
- if (lmv->connected) {
- mutex_unlock(&lmv->lmv_init_mutex);
- RETURN(0);
- }
+ if (lmv->connected)
+ RETURN(0);
- if (lmv->desc.ld_tgt_count == 0) {
- mutex_unlock(&lmv->lmv_init_mutex);
- CERROR("%s: no targets configured.\n", obd->obd_name);
- RETURN(-EINVAL);
- }
+ mutex_lock(&lmv->lmv_mdt_descs.ltd_mutex);
+ if (lmv->connected)
+ GOTO(unlock, rc = 0);
- LASSERT(lmv->tgts != NULL);
+ if (!lmv->lmv_mdt_count) {
+ CERROR("%s: no targets configured: rc = -EINVAL\n",
+ obd->obd_name);
+ GOTO(unlock, rc = -EINVAL);
+ }
- if (lmv->tgts[0] == NULL) {
- mutex_unlock(&lmv->lmv_init_mutex);
- CERROR("%s: no target configured for index 0.\n",
+ if (!lmv_mdt0_inited(lmv)) {
+ CERROR("%s: no target configured for index 0: rc = -EINVAL.\n",
obd->obd_name);
- RETURN(-EINVAL);
+ GOTO(unlock, rc = -EINVAL);
}
CDEBUG(D_CONFIG, "Time to connect %s to %s\n",
obd->obd_uuid.uuid, obd->obd_name);
- for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- tgt = lmv->tgts[i];
- if (tgt == NULL)
- continue;
+ lmv_foreach_tgt(lmv, tgt) {
rc = lmv_connect_mdc(obd, tgt);
if (rc)
GOTO(out_disc, rc);
}
lmv->connected = 1;
- easize = lmv_mds_md_size(lmv->desc.ld_tgt_count, LMV_MAGIC);
+ easize = lmv_mds_md_size(lmv->lmv_mdt_count, LMV_MAGIC);
lmv_init_ea_size(obd->obd_self_export, easize, 0);
- mutex_unlock(&lmv->lmv_init_mutex);
- RETURN(0);
+ EXIT;
+unlock:
+ mutex_unlock(&lmv->lmv_mdt_descs.ltd_mutex);
+
+ return rc;
- out_disc:
- while (i-- > 0) {
- int rc2;
- tgt = lmv->tgts[i];
- if (tgt == NULL)
+out_disc:
+ lmv_foreach_tgt(lmv, tgt) {
+ tgt->ltd_active = 0;
+ if (!tgt->ltd_exp)
continue;
- tgt->ltd_active = 0;
- if (tgt->ltd_exp) {
- --lmv->desc.ld_active_tgt_count;
- rc2 = obd_disconnect(tgt->ltd_exp);
- if (rc2) {
- CERROR("LMV target %s disconnect on "
- "MDC idx %d: error %d\n",
- tgt->ltd_uuid.uuid, i, rc2);
- }
- }
- }
-
- mutex_unlock(&lmv->lmv_init_mutex);
- RETURN(rc);
+ --lmv->lmv_mdt_descs.ltd_lmv_desc.ld_active_tgt_count;
+ obd_register_observer(tgt->ltd_exp->exp_obd, NULL);
+ obd_disconnect(tgt->ltd_exp);
+ }
+
+ goto unlock;
}
static int lmv_disconnect_mdc(struct obd_device *obd, struct lmv_tgt_desc *tgt)
{
- struct lmv_obd *lmv = &obd->u.lmv;
- struct obd_device *mdc_obd;
- int rc;
- ENTRY;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct obd_device *mdc_obd;
+ int rc;
+
+ ENTRY;
- LASSERT(tgt != NULL);
- LASSERT(obd != NULL);
+ LASSERT(tgt != NULL);
+ LASSERT(obd != NULL);
- mdc_obd = class_exp2obd(tgt->ltd_exp);
+ mdc_obd = class_exp2obd(tgt->ltd_exp);
- if (mdc_obd) {
- mdc_obd->obd_force = obd->obd_force;
- mdc_obd->obd_fail = obd->obd_fail;
- mdc_obd->obd_no_recov = obd->obd_no_recov;
+ if (mdc_obd) {
+ mdc_obd->obd_force = obd->obd_force;
+ mdc_obd->obd_fail = obd->obd_fail;
+ mdc_obd->obd_no_recov = obd->obd_no_recov;
if (lmv->lmv_tgts_kobj)
sysfs_remove_link(lmv->lmv_tgts_kobj,
mdc_obd->obd_name);
}
- rc = obd_fid_fini(tgt->ltd_exp->exp_obd);
+ rc = lu_qos_del_tgt(&lmv->lmv_qos, tgt);
if (rc)
- CERROR("Can't finanize fids factory\n");
+ CERROR("%s: Can't del target from QoS table: rc = %d\n",
+ tgt->ltd_exp->exp_obd->obd_name, rc);
- CDEBUG(D_INFO, "Disconnected from %s(%s) successfully\n",
- tgt->ltd_exp->exp_obd->obd_name,
- tgt->ltd_exp->exp_obd->obd_uuid.uuid);
+ rc = fld_client_del_target(&lmv->lmv_fld, tgt->ltd_index);
+ if (rc)
+ CERROR("%s: Can't del fld targets: rc = %d\n",
+ tgt->ltd_exp->exp_obd->obd_name, rc);
+
+ rc = obd_fid_fini(tgt->ltd_exp->exp_obd);
+ if (rc)
+ CERROR("%s: Can't finalize fids factory: rc = %d\n",
+ tgt->ltd_exp->exp_obd->obd_name, rc);
- obd_register_observer(tgt->ltd_exp->exp_obd, NULL);
- rc = obd_disconnect(tgt->ltd_exp);
- if (rc) {
- if (tgt->ltd_active) {
- CERROR("Target %s disconnect error %d\n",
- tgt->ltd_uuid.uuid, rc);
- }
- }
+ CDEBUG(D_INFO, "Disconnected from %s(%s) successfully\n",
+ tgt->ltd_exp->exp_obd->obd_name,
+ tgt->ltd_exp->exp_obd->obd_uuid.uuid);
- lmv_activate_target(lmv, tgt, 0);
- tgt->ltd_exp = NULL;
- RETURN(0);
+ lmv_activate_target(lmv, tgt, 0);
+ obd_register_observer(tgt->ltd_exp->exp_obd, NULL);
+ rc = obd_disconnect(tgt->ltd_exp);
+ if (rc) {
+ CERROR("%s: Target %s disconnect error: rc = %d\n",
+ tgt->ltd_exp->exp_obd->obd_name,
+ tgt->ltd_uuid.uuid, rc);
+ }
+ tgt->ltd_exp = NULL;
+ RETURN(0);
}
static int lmv_disconnect(struct obd_export *exp)
{
- struct obd_device *obd = class_exp2obd(exp);
- struct lmv_obd *lmv = &obd->u.lmv;
- int rc;
- __u32 i;
- ENTRY;
-
- if (!lmv->tgts)
- goto out_local;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
+ int rc;
- for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- if (lmv->tgts[i] == NULL || lmv->tgts[i]->ltd_exp == NULL)
- continue;
+ ENTRY;
- lmv_disconnect_mdc(obd, lmv->tgts[i]);
- }
+ lmv_foreach_connected_tgt(lmv, tgt)
+ lmv_disconnect_mdc(obd, tgt);
if (lmv->lmv_tgts_kobj)
kobject_put(lmv->lmv_tgts_kobj);
-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);
lmv->connected = 0;
+ rc = class_disconnect(exp);
RETURN(rc);
}
+static void lmv_statfs_update(struct lmv_obd *lmv, struct lmv_tgt_desc *tgt,
+ struct obd_statfs *osfs)
+{
+ spin_lock(&lmv->lmv_lock);
+ tgt->ltd_statfs = *osfs;
+ tgt->ltd_statfs_age = ktime_get_seconds();
+ spin_unlock(&lmv->lmv_lock);
+ set_bit(LQ_DIRTY, &lmv->lmv_qos.lq_flags);
+}
+
static int lmv_fid2path(struct obd_export *exp, int len, void *karg,
void __user *uarg)
{
- struct obd_device *obddev = class_exp2obd(exp);
- struct lmv_obd *lmv = &obddev->u.lmv;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct lmv_obd *lmv = &obd->u.lmv;
struct getinfo_fid2path *gf;
- struct lmv_tgt_desc *tgt;
+ struct lmv_tgt_desc *tgt;
struct getinfo_fid2path *remote_gf = NULL;
- struct lu_fid root_fid;
- int remote_gf_size = 0;
- int rc;
+ struct lu_fid root_fid;
+ int remote_gf_size = 0;
+ int currentisenc = 0;
+ int globalisenc = 0;
+ int rc;
gf = karg;
- tgt = lmv_find_target(lmv, &gf->gf_fid);
+ tgt = lmv_fid2tgt(lmv, &gf->gf_fid);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
if (rc != 0 && rc != -EREMOTE)
GOTO(out_fid2path, rc);
+ if (gf->gf_u.gf_path[0] == '/') {
+ /* by convention, server side (mdt_path_current()) puts
+ * a leading '/' to tell client that we are dealing with
+ * an encrypted file
+ */
+ currentisenc = 1;
+ globalisenc = 1;
+ } else {
+ currentisenc = 0;
+ }
+
/* If remote_gf != NULL, it means just building the
- * path on the remote MDT, copy this path segement to gf */
+ * path on the remote MDT, copy this path segment to gf.
+ */
if (remote_gf != NULL) {
struct getinfo_fid2path *ori_gf;
+ int oldisenc = 0;
char *ptr;
int len;
GOTO(out_fid2path, rc = -EOVERFLOW);
ptr = ori_gf->gf_u.gf_path;
+ oldisenc = ptr[0] == '/';
len = strlen(gf->gf_u.gf_path);
- /* move the current path to the right to release space
- * for closer-to-root part */
- memmove(ptr + len + 1, ptr, strlen(ori_gf->gf_u.gf_path));
- memcpy(ptr, gf->gf_u.gf_path, len);
- ptr[len] = '/';
+ if (len) {
+ /* move the current path to the right to release space
+ * for closer-to-root part
+ */
+ memmove(ptr + len - currentisenc + 1 + globalisenc,
+ ptr + oldisenc,
+ strlen(ori_gf->gf_u.gf_path) - oldisenc + 1);
+ if (globalisenc)
+ *(ptr++) = '/';
+ memcpy(ptr, gf->gf_u.gf_path + currentisenc,
+ len - currentisenc);
+ ptr[len - currentisenc] = '/';
+ }
}
CDEBUG(D_INFO, "%s: get path %s "DFID" rec: %llu ln: %u\n",
/* sigh, has to go to another MDT to do path building further */
if (remote_gf == NULL) {
- remote_gf_size = sizeof(*remote_gf) + PATH_MAX;
+ remote_gf_size = sizeof(*remote_gf) + len - sizeof(*gf);
OBD_ALLOC(remote_gf, remote_gf_size);
if (remote_gf == NULL)
GOTO(out_fid2path, rc = -ENOMEM);
- remote_gf->gf_pathlen = PATH_MAX;
+ remote_gf->gf_pathlen = len - sizeof(*gf);
}
if (!fid_is_sane(&gf->gf_fid)) {
GOTO(out_fid2path, rc = -EINVAL);
}
- tgt = lmv_find_target(lmv, &gf->gf_fid);
+ tgt = lmv_fid2tgt(lmv, &gf->gf_fid);
if (IS_ERR(tgt))
GOTO(out_fid2path, rc = -EINVAL);
const struct hsm_user_request *hur,
const struct lmv_tgt_desc *tgt_mds)
{
- __u32 i;
- int nr = 0;
- struct lmv_tgt_desc *curr_tgt;
+ struct lmv_tgt_desc *curr_tgt;
+ __u32 i;
+ int nr = 0;
/* 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);
+ curr_tgt = lmv_fid2tgt(lmv, &hur->hur_user_item[i].hui_fid);
if (IS_ERR(curr_tgt))
RETURN(PTR_ERR(curr_tgt));
if (obd_uuid_equals(&curr_tgt->ltd_uuid, &tgt_mds->ltd_uuid))
const struct lmv_tgt_desc *tgt_mds,
struct hsm_user_request *hur_out)
{
- __u32 i, nr_out;
- struct lmv_tgt_desc *curr_tgt;
+ __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);
+ curr_tgt = lmv_fid2tgt(lmv, &hur_in->hur_user_item[i].hui_fid);
if (IS_ERR(curr_tgt))
RETURN(PTR_ERR(curr_tgt));
if (obd_uuid_equals(&curr_tgt->ltd_uuid, &tgt_mds->ltd_uuid)) {
void __user *uarg)
{
struct lmv_obd *lmv = &obd->u.lmv;
- __u32 i;
- int rc;
+ struct lu_tgt_desc *tgt;
+ int rc;
+
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) */
+ lmv_foreach_connected_tgt(lmv, tgt)
+ /* 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
{
struct lmv_obd *lmv = &obd->u.lmv;
struct file *filp;
- __u32 i, j;
- int err;
bool any_set = false;
struct kkuc_ct_data *kcd;
size_t kcd_size;
+ struct lu_tgt_desc *tgt;
+ __u32 i;
+ int err;
int rc = 0;
+
ENTRY;
filp = fget(lk->lk_wfd);
/* 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;
-
+ * except if it because of inactive target.
+ */
+ lmv_foreach_connected_tgt(lmv, tgt) {
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",
+ CERROR("%s: iocontrol MDC %s on MDT idx %d cmd %x: err = %d\n",
lmv2obd_dev(lmv)->obd_name,
- tgt->ltd_uuid.uuid, i, cmd, err);
+ tgt->ltd_uuid.uuid, tgt->ltd_index, cmd,
+ err);
rc = err;
lk->lk_flags |= LK_FLG_STOP;
+ i = tgt->ltd_index;
/* unregister from previous MDS */
- for (j = 0; j < i; j++) {
- tgt = lmv->tgts[j];
- if (tgt == NULL || tgt->ltd_exp == NULL)
- continue;
+ lmv_foreach_connected_tgt(lmv, tgt) {
+ if (tgt->ltd_index >= i)
+ break;
+
obd_iocontrol(cmd, tgt->ltd_exp, len,
lk, uarg);
}
GOTO(err_kkuc_rem, rc);
}
/* else: transient error.
- * kuc will register to the missing MDT
- * when it is back */
+ * kuc will register to the missing MDT when it is back
+ */
} else {
any_set = true;
}
return rc;
}
-
-
-
static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp,
int len, void *karg, void __user *uarg)
{
- 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;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lu_tgt_desc *tgt = NULL;
+ int set = 0;
+ __u32 count = lmv->lmv_mdt_count;
+ int rc = 0;
+
ENTRY;
+ CDEBUG(D_IOCTL, "%s: cmd=%x len=%u karg=%pK uarg=%pK\n",
+ exp->exp_obd->obd_name, cmd, len, karg, uarg);
+ if (count == 0)
+ RETURN(-ENOTTY);
+
+ /* exit early for unknown ioctl types */
+ if (unlikely(_IOC_TYPE(cmd) != 'f' && !IOC_OSC_SET_ACTIVE_ALLOW(cmd)))
+ RETURN(OBD_IOC_ERROR(obd->obd_name, cmd, "unknown", -ENOTTY));
+
+ /* handle commands that don't use @karg first */
+ switch (cmd) {
+ case LL_IOC_GET_CONNECT_FLAGS:
+ tgt = lmv_tgt(lmv, 0);
+ rc = -ENODATA;
+ if (tgt && tgt->ltd_exp)
+ rc = obd_iocontrol(cmd, tgt->ltd_exp, len, NULL, uarg);
+ RETURN(rc);
+ }
- if (count == 0)
- RETURN(-ENOTTY);
+ if (unlikely(karg == NULL))
+ RETURN(OBD_IOC_ERROR(obd->obd_name, cmd, "karg=NULL", -EINVAL));
- switch (cmd) {
- case IOC_OBD_STATFS: {
- struct obd_ioctl_data *data = karg;
- struct obd_device *mdc_obd;
- struct obd_statfs stat_buf = {0};
- __u32 index;
+ switch (cmd) {
+ case IOC_OBD_STATFS: {
+ struct obd_ioctl_data *data = karg;
+ struct obd_device *mdc_obd;
+ struct obd_statfs stat_buf = {0};
+ __u32 index;
- memcpy(&index, data->ioc_inlbuf2, sizeof(__u32));
- if ((index >= count))
- RETURN(-ENODEV);
+ memcpy(&index, data->ioc_inlbuf2, sizeof(__u32));
- tgt = lmv->tgts[index];
- if (tgt == NULL || !tgt->ltd_active)
+ if (index >= lmv->lmv_mdt_descs.ltd_tgts_size)
+ RETURN(-ENODEV);
+
+ tgt = lmv_tgt(lmv, index);
+ if (!tgt)
+ RETURN(-EAGAIN);
+
+ if (!tgt->ltd_active)
RETURN(-ENODATA);
mdc_obd = class_exp2obd(tgt->ltd_exp);
0);
if (rc)
RETURN(rc);
+ lmv_statfs_update(lmv, tgt, &stat_buf);
if (copy_to_user(data->ioc_pbuf1, &stat_buf,
- min((int) data->ioc_plen1,
- (int) sizeof(stat_buf))))
+ min_t(int, data->ioc_plen1, sizeof(stat_buf))))
RETURN(-EFAULT);
break;
- }
- case OBD_IOC_QUOTACTL: {
- struct if_quotactl *qctl = karg;
- struct obd_quotactl *oqctl;
+ }
+ case OBD_IOC_QUOTACTL: {
+ struct if_quotactl *qctl = karg;
+ struct obd_quotactl *oqctl;
+ struct obd_import *imp;
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)
- RETURN(-EINVAL);
+ tgt = lmv_tgt(lmv, qctl->qc_idx);
} else if (qctl->qc_valid == QC_UUID) {
- for (i = 0; i < count; i++) {
- tgt = lmv->tgts[i];
- if (tgt == NULL)
- continue;
+ lmv_foreach_tgt(lmv, tgt) {
if (!obd_uuid_equals(&tgt->ltd_uuid,
&qctl->obd_uuid))
continue;
- if (tgt->ltd_exp == NULL)
- RETURN(-EINVAL);
-
- break;
- }
- } else {
- RETURN(-EINVAL);
- }
-
- if (i >= count)
- RETURN(-EAGAIN);
-
- LASSERT(tgt != NULL && tgt->ltd_exp != NULL);
- OBD_ALLOC_PTR(oqctl);
- if (!oqctl)
- RETURN(-ENOMEM);
-
- QCTL_COPY(oqctl, qctl);
- rc = obd_quotactl(tgt->ltd_exp, oqctl);
- if (rc == 0) {
- QCTL_COPY(qctl, oqctl);
- qctl->qc_valid = QC_MDTIDX;
- qctl->obd_uuid = tgt->ltd_uuid;
- }
- OBD_FREE_PTR(oqctl);
- break;
- }
- case LL_IOC_GET_CONNECT_FLAGS: {
- tgt = lmv->tgts[0];
- if (tgt == NULL || tgt->ltd_exp == NULL)
+ if (!tgt->ltd_exp)
+ RETURN(-EINVAL);
+
+ break;
+ }
+ } else {
+ RETURN(-EINVAL);
+ }
+
+ if (!tgt)
+ RETURN(-ENODEV);
+
+ if (!tgt->ltd_exp)
+ RETURN(-EINVAL);
+
+ imp = class_exp2cliimp(tgt->ltd_exp);
+ if (!tgt->ltd_active && imp->imp_state != LUSTRE_IMP_IDLE) {
+ qctl->qc_valid = QC_MDTIDX;
+ qctl->obd_uuid = tgt->ltd_uuid;
RETURN(-ENODATA);
- rc = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
+ }
+
+ OBD_ALLOC_PTR(oqctl);
+ if (!oqctl)
+ RETURN(-ENOMEM);
+
+ QCTL_COPY(oqctl, qctl);
+ rc = obd_quotactl(tgt->ltd_exp, oqctl);
+ if (rc == 0) {
+ QCTL_COPY_NO_PNAME(qctl, oqctl);
+ qctl->qc_valid = QC_MDTIDX;
+ qctl->obd_uuid = tgt->ltd_uuid;
+ }
+ OBD_FREE_PTR(oqctl);
break;
}
case LL_IOC_FID2MDTIDX: {
RETURN(rc);
/* Note: this is from llite(see ll_dir_ioctl()), @uarg does not
- * point to user space memory for FID2MDTIDX. */
+ * point to user space memory for FID2MDTIDX.
+ */
*(__u32 *)uarg = mdt_index;
break;
}
case LL_IOC_HSM_STATE_GET:
case LL_IOC_HSM_STATE_SET:
case LL_IOC_HSM_ACTION: {
- struct md_op_data *op_data = karg;
+ struct md_op_data *op_data = karg;
- tgt = lmv_find_target(lmv, &op_data->op_fid1);
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid1);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
case LL_IOC_HSM_PROGRESS: {
const struct hsm_progress_kernel *hpk = karg;
- tgt = lmv_find_target(lmv, &hpk->hpk_fid);
+ tgt = lmv_fid2tgt(lmv, &hpk->hpk_fid);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
rc = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
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 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);
+ tgt = lmv_fid2tgt(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++) {
+ lmv_foreach_connected_tgt(lmv, tgt) {
int nr, rc1;
size_t reqlen;
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)
RETURN(nr);
break;
}
case LL_IOC_LOV_SWAP_LAYOUTS: {
- struct md_op_data *op_data = karg;
- struct lmv_tgt_desc *tgt1, *tgt2;
+ struct md_op_data *op_data = karg;
+ struct lmv_tgt_desc *tgt1, *tgt2;
- tgt1 = lmv_find_target(lmv, &op_data->op_fid1);
+ tgt1 = lmv_fid2tgt(lmv, &op_data->op_fid1);
if (IS_ERR(tgt1))
RETURN(PTR_ERR(tgt1));
- tgt2 = lmv_find_target(lmv, &op_data->op_fid2);
+ tgt2 = lmv_fid2tgt(lmv, &op_data->op_fid2);
if (IS_ERR(tgt2))
RETURN(PTR_ERR(tgt2));
}
case LL_IOC_HSM_CT_START: {
struct lustre_kernelcomm *lk = karg;
+
if (lk->lk_flags & LK_FLG_STOP)
- rc = lmv_hsm_ct_unregister(obddev, cmd, len, lk, uarg);
+ rc = lmv_hsm_ct_unregister(obd, cmd, len, lk, uarg);
else
- rc = lmv_hsm_ct_register(obddev, cmd, len, lk, uarg);
+ rc = lmv_hsm_ct_register(obd, cmd, len, lk, uarg);
break;
}
default:
- for (i = 0; i < count; i++) {
+ lmv_foreach_connected_tgt(lmv, tgt) {
struct obd_device *mdc_obd;
int err;
- 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. Let's pass it through
+ */
mdc_obd = class_exp2obd(tgt->ltd_exp);
- mdc_obd->obd_force = obddev->obd_force;
+ mdc_obd->obd_force = obd->obd_force;
err = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
if (err) {
if (tgt->ltd_active) {
- CERROR("error: iocontrol MDC %s on MDT"
- " idx %d cmd %x: err = %d\n",
- tgt->ltd_uuid.uuid, i, cmd, err);
+ OBD_IOC_ERROR(obd->obd_name, cmd,
+ tgt->ltd_uuid.uuid, err);
if (!rc)
rc = err;
+ if (unlikely(err == -ENOTTY))
+ break;
}
- } else
+ } else {
set = 1;
- }
- if (!set && !rc)
- rc = -EIO;
- }
- RETURN(rc);
+ }
+ }
+ if (!set && !rc)
+ rc = -EIO;
+ break;
+ }
+ RETURN(rc);
}
-/**
- * This is _inode_ placement policy function (not name).
- */
-static u32 lmv_placement_policy(struct obd_device *obd,
- struct md_op_data *op_data)
+int lmv_fid_alloc(const struct lu_env *env, struct obd_export *exp,
+ struct lu_fid *fid, struct md_op_data *op_data)
{
+ struct obd_device *obd = class_exp2obd(exp);
struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_user_md *lum;
- u32 mdt;
+ struct lmv_tgt_desc *tgt;
+ int rc;
ENTRY;
- if (lmv->desc.ld_tgt_count == 1)
- RETURN(0);
-
- lum = op_data->op_data;
- /*
- * Choose MDT by
- * 1. See if the stripe offset is specified by lum.
- * 2. If parent has default LMV, and its hash type is "space", choose
- * MDT with QoS. (see lmv_locate_tgt_qos()).
- * 3. Then check if default LMV stripe offset is not -1.
- * 4. Finally choose MDS by name hash if the parent
- * is striped directory. (see lmv_locate_tgt()).
- *
- * presently explicit MDT location is not supported
- * for foreign dirs (as it can't be embedded into free
- * format LMV, like with lum_stripe_offset), so we only
- * rely on default stripe offset or then name hashing.
- */
- if (op_data->op_cli_flags & CLI_SET_MEA && lum != NULL &&
- le32_to_cpu(lum->lum_magic != LMV_MAGIC_FOREIGN) &&
- le32_to_cpu(lum->lum_stripe_offset) != (__u32)-1) {
- mdt = le32_to_cpu(lum->lum_stripe_offset);
- } else if (op_data->op_code == LUSTRE_OPC_MKDIR &&
- !lmv_dir_striped(op_data->op_mea1) &&
- lmv_dir_qos_mkdir(op_data->op_default_mea1)) {
- mdt = op_data->op_mds;
- } else if (op_data->op_code == LUSTRE_OPC_MKDIR &&
- op_data->op_default_mea1 &&
- op_data->op_default_mea1->lsm_md_master_mdt_index !=
- (__u32)-1) {
- mdt = op_data->op_default_mea1->lsm_md_master_mdt_index;
- op_data->op_mds = mdt;
- } else {
- mdt = op_data->op_mds;
- }
-
- RETURN(mdt);
-}
+ LASSERT(op_data);
+ LASSERT(fid);
-int __lmv_fid_alloc(struct lmv_obd *lmv, struct lu_fid *fid, u32 mds)
-{
- struct lmv_tgt_desc *tgt;
- int rc;
- ENTRY;
+ tgt = lmv_tgt(lmv, op_data->op_mds);
+ if (!tgt)
+ RETURN(-ENODEV);
- tgt = lmv_get_target(lmv, mds, NULL);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ if (!tgt->ltd_active || !tgt->ltd_exp)
+ RETURN(-ENODEV);
/*
* 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->ltd_active == 0 || tgt->ltd_exp == NULL)
- GOTO(out, rc = -ENODEV);
-
- /*
- * Asking underlying tgt layer to allocate new fid.
- */
rc = obd_fid_alloc(NULL, tgt->ltd_exp, fid, NULL);
+ mutex_unlock(&tgt->ltd_fid_mutex);
if (rc > 0) {
LASSERT(fid_is_sane(fid));
rc = 0;
}
- EXIT;
-out:
- mutex_unlock(&tgt->ltd_fid_mutex);
- return rc;
+ RETURN(rc);
}
-int lmv_fid_alloc(const struct lu_env *env, struct obd_export *exp,
- struct lu_fid *fid, struct md_op_data *op_data)
+static u32 qos_exclude_hashfh(const void *data, u32 len, u32 seed)
{
- struct obd_device *obd = class_exp2obd(exp);
- struct lmv_obd *lmv = &obd->u.lmv;
- u32 mds;
- int rc;
+ const char *name = data;
- ENTRY;
+ return hashlen_hash(cfs_hashlen_string((void *)(unsigned long)seed,
+ name));
+}
- LASSERT(op_data != NULL);
- LASSERT(fid != NULL);
+static int qos_exclude_cmpfn(struct rhashtable_compare_arg *arg,
+ const void *obj)
+{
+ const struct qos_exclude_prefix *prefix = obj;
+ const char *name = arg->key;
- mds = lmv_placement_policy(obd, op_data);
+ return strcmp(name, prefix->qep_name);
+}
- rc = __lmv_fid_alloc(lmv, fid, mds);
- if (rc)
- CERROR("Can't alloc new fid, rc %d\n", rc);
+const struct rhashtable_params qos_exclude_hash_params = {
+ .key_len = 1, /* actually variable */
+ .key_offset = offsetof(struct qos_exclude_prefix, qep_name),
+ .head_offset = offsetof(struct qos_exclude_prefix, qep_hash),
+ .hashfn = qos_exclude_hashfh,
+ .obj_cmpfn = qos_exclude_cmpfn,
+ .automatic_shrinking = true,
+};
- RETURN(rc);
+void qos_exclude_prefix_free(void *vprefix, void *data)
+{
+ struct qos_exclude_prefix *prefix = vprefix;
+
+ list_del(&prefix->qep_list);
+ kfree(prefix);
}
static int lmv_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
{
struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_desc *desc;
- struct lnet_process_id lnet_id;
+ struct lmv_desc *desc;
+ struct lnet_processid lnet_id;
+ struct qos_exclude_prefix *prefix;
int i = 0;
int rc;
ENTRY;
- if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
- CERROR("LMV setup requires a descriptor\n");
- RETURN(-EINVAL);
- }
-
- desc = (struct lmv_desc *)lustre_cfg_buf(lcfg, 1);
- if (sizeof(*desc) > LUSTRE_CFG_BUFLEN(lcfg, 1)) {
- CERROR("Lmv descriptor size wrong: %d > %d\n",
- (int)sizeof(*desc), LUSTRE_CFG_BUFLEN(lcfg, 1));
- RETURN(-EINVAL);
- }
-
- lmv->tgts_size = 32U;
- OBD_ALLOC(lmv->tgts, sizeof(*lmv->tgts) * lmv->tgts_size);
- if (lmv->tgts == NULL)
- RETURN(-ENOMEM);
+ if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
+ CERROR("LMV setup requires a descriptor\n");
+ RETURN(-EINVAL);
+ }
+
+ desc = (struct lmv_desc *)lustre_cfg_buf(lcfg, 1);
+ if (sizeof(*desc) > LUSTRE_CFG_BUFLEN(lcfg, 1)) {
+ CERROR("Lmv descriptor size wrong: %d > %d\n",
+ (int)sizeof(*desc), LUSTRE_CFG_BUFLEN(lcfg, 1));
+ RETURN(-EINVAL);
+ }
- obd_str2uuid(&lmv->desc.ld_uuid, desc->ld_uuid.uuid);
- lmv->desc.ld_tgt_count = 0;
- lmv->desc.ld_active_tgt_count = 0;
- lmv->desc.ld_qos_maxage = LMV_DESC_QOS_MAXAGE_DEFAULT;
+ obd_str2uuid(&lmv->lmv_mdt_descs.ltd_lmv_desc.ld_uuid,
+ desc->ld_uuid.uuid);
+ lmv->lmv_mdt_descs.ltd_lmv_desc.ld_tgt_count = 0;
+ lmv->lmv_mdt_descs.ltd_lmv_desc.ld_active_tgt_count = 0;
+ lmv->lmv_mdt_descs.ltd_lmv_desc.ld_qos_maxage =
+ LMV_DESC_QOS_MAXAGE_DEFAULT;
lmv->max_def_easize = 0;
lmv->max_easize = 0;
spin_lock_init(&lmv->lmv_lock);
- mutex_init(&lmv->lmv_init_mutex);
-
- /* Set up allocation policy (QoS and RR) */
- INIT_LIST_HEAD(&lmv->lmv_qos.lq_svr_list);
- init_rwsem(&lmv->lmv_qos.lq_rw_sem);
- lmv->lmv_qos.lq_dirty = 1;
- lmv->lmv_qos.lq_reset = 1;
- /* Default priority is toward free space balance */
- lmv->lmv_qos.lq_prio_free = 232;
- /* Default threshold for rr (roughly 17%) */
- lmv->lmv_qos.lq_threshold_rr = 43;
-
- lu_qos_rr_init(&lmv->lmv_qos.lq_rr);
+ INIT_LIST_HEAD(&lmv->lmv_qos_exclude_list);
/*
* initialize rr_index to lower 32bit of netid, so that client
* can distribute subdirs evenly from the beginning.
*/
- while (LNetGetId(i++, &lnet_id) != -ENOENT) {
- if (LNET_NETTYP(LNET_NIDNET(lnet_id.nid)) != LOLND) {
- lmv->lmv_qos_rr_index = (u32)lnet_id.nid;
+ while (LNetGetId(i++, &lnet_id, true) != -ENOENT) {
+ if (!nid_is_lo0(&lnet_id.nid)) {
+ lmv->lmv_qos_rr_index = nidhash(&lnet_id.nid);
break;
}
}
rc = fld_client_init(&lmv->lmv_fld, obd->obd_name,
LUSTRE_CLI_FLD_HASH_DHT);
- if (rc) {
+ if (rc)
CERROR("Can't init FLD, err %d\n", rc);
- GOTO(out, rc);
+
+ rc = lu_tgt_descs_init(&lmv->lmv_mdt_descs, true);
+ if (rc)
+ CWARN("%s: error initialize target table: rc = %d\n",
+ obd->obd_name, rc);
+
+ rc = rhashtable_init(&lmv->lmv_qos_exclude_hash,
+ &qos_exclude_hash_params);
+ if (rc) {
+ CERROR("%s: qos exclude hash initalize failed: %d\n",
+ obd->obd_name, rc);
+ RETURN(rc);
}
- RETURN(0);
+ prefix = kmalloc(sizeof(*prefix), __GFP_ZERO);
+ if (!prefix)
+ GOTO(out, rc = -ENOMEM);
+ /* Apache Spark creates a _temporary directory for staging files */
+ strcpy(prefix->qep_name, "_temporary");
+ rc = rhashtable_insert_fast(&lmv->lmv_qos_exclude_hash,
+ &prefix->qep_hash, qos_exclude_hash_params);
+ if (rc) {
+ kfree(prefix);
+ GOTO(out, rc);
+ }
+ list_add_tail(&prefix->qep_list, &lmv->lmv_qos_exclude_list);
+ GOTO(out, rc);
out:
- return rc;
+ if (rc)
+ rhashtable_destroy(&lmv->lmv_qos_exclude_hash);
+ return rc;
}
static int lmv_cleanup(struct obd_device *obd)
{
- struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lu_tgt_desc *tgt;
+ struct lu_tgt_desc *tmp;
+
ENTRY;
+ rhashtable_free_and_destroy(&lmv->lmv_qos_exclude_hash,
+ qos_exclude_prefix_free, NULL);
fld_client_fini(&lmv->lmv_fld);
- if (lmv->tgts != NULL) {
- int i;
- for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- if (lmv->tgts[i] == NULL)
- continue;
- lmv_del_target(lmv, i);
- }
- OBD_FREE(lmv->tgts, sizeof(*lmv->tgts) * lmv->tgts_size);
- lmv->tgts_size = 0;
- }
+ fld_client_debugfs_fini(&lmv->lmv_fld);
+
+ lprocfs_obd_cleanup(obd);
+ lprocfs_free_md_stats(obd);
+
+ lmv_foreach_tgt_safe(lmv, tgt, tmp)
+ lmv_del_target(lmv, tgt);
+ lu_tgt_descs_fini(&lmv->lmv_mdt_descs);
+
RETURN(0);
}
int gen;
__u32 index;
int rc;
+
ENTRY;
switch (lcfg->lcfg_command) {
case LCFG_ADD_MDC:
/* modify_mdc_tgts add 0:lustre-clilmv 1:lustre-MDT0000_UUID
- * 2:0 3:1 4:lustre-MDT0000-mdc_UUID */
+ * 2:0 3:1 4:lustre-MDT0000-mdc_UUID
+ */
if (LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(obd_uuid.uuid))
GOTO(out, rc = -EINVAL);
RETURN(rc);
}
-static int lmv_select_statfs_mdt(struct lmv_obd *lmv, __u32 flags)
+static int lmv_select_statfs_mdt(struct obd_export *exp, struct lmv_obd *lmv,
+ u32 flags)
{
+ bool large_nid = exp_connect_flags2(exp) & OBD_CONNECT2_LARGE_NID;
int i;
if (flags & OBD_STATFS_FOR_MDT0)
return 0;
- if (lmv->lmv_statfs_start || lmv->desc.ld_tgt_count == 1)
+ if (lmv->lmv_statfs_start || lmv->lmv_mdt_count == 1)
return lmv->lmv_statfs_start;
/* choose initial MDT for this client */
for (i = 0;; i++) {
- struct lnet_process_id lnet_id;
- if (LNetGetId(i, &lnet_id) == -ENOENT)
+ struct lnet_processid lnet_id;
+
+ if (LNetGetId(i, &lnet_id, large_nid) == -ENOENT)
break;
- if (LNET_NETTYP(LNET_NIDNET(lnet_id.nid)) != LOLND) {
+ if (!nid_is_lo0(&lnet_id.nid)) {
/* We dont need a full 64-bit modulus, just enough
* to distribute the requests across MDTs evenly.
*/
- lmv->lmv_statfs_start =
- (u32)lnet_id.nid % lmv->desc.ld_tgt_count;
+ lmv->lmv_statfs_start = nidhash(&lnet_id.nid) %
+ lmv->lmv_mdt_count;
break;
}
}
static int lmv_statfs(const struct lu_env *env, struct obd_export *exp,
struct obd_statfs *osfs, time64_t 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;
- __u32 i, idx;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct obd_statfs *temp;
+ struct lu_tgt_desc *tgt;
+ __u32 i;
+ __u32 idx;
+ int rc = 0;
+ int err = 0;
+
ENTRY;
- OBD_ALLOC(temp, sizeof(*temp));
- if (temp == NULL)
- RETURN(-ENOMEM);
+ OBD_ALLOC(temp, sizeof(*temp));
+ if (temp == NULL)
+ RETURN(-ENOMEM);
/* distribute statfs among MDTs */
- idx = lmv_select_statfs_mdt(lmv, flags);
+ idx = lmv_select_statfs_mdt(exp, lmv, flags);
- for (i = 0; i < lmv->desc.ld_tgt_count; i++, idx++) {
- idx = idx % lmv->desc.ld_tgt_count;
- if (lmv->tgts[idx] == NULL || lmv->tgts[idx]->ltd_exp == NULL)
+ for (i = 0; i < lmv->lmv_mdt_descs.ltd_tgts_size; i++, idx++) {
+ idx = idx % lmv->lmv_mdt_descs.ltd_tgts_size;
+ tgt = lmv_tgt(lmv, idx);
+ if (!tgt || !tgt->ltd_exp)
continue;
- rc = obd_statfs(env, lmv->tgts[idx]->ltd_exp, temp,
- max_age, flags);
+ rc = obd_statfs(env, tgt->ltd_exp, temp, max_age,
+ flags | OBD_STATFS_NESTED);
if (rc) {
CERROR("%s: can't stat MDS #%d: rc = %d\n",
- lmv->tgts[idx]->ltd_exp->exp_obd->obd_name, i,
- rc);
+ tgt->ltd_exp->exp_obd->obd_name, i, rc);
+ err = rc;
+ /* Try another MDT */
+ if (flags & OBD_STATFS_SUM)
+ continue;
GOTO(out_free_temp, rc);
}
- if (temp->os_state & OS_STATE_SUM ||
+ if (temp->os_state & OS_STATFS_SUM ||
flags == OBD_STATFS_FOR_MDT0) {
- /* reset to the last aggregated values
- * and don't sum with non-aggrated data */
- /* If the statfs is from mount, it needs to retrieve
- * necessary information from MDT0. i.e. mount does
- * not need the merged osfs from all of MDT. Also
- * clients can be mounted as long as MDT0 is in
- * service */
+ /* reset to the last aggregated values and don't sum
+ * with non-aggrated data
+ *
+ * If the statfs is from mount, it needs to retrieve
+ * necessary info from MDT0. i.e. mount does not need
+ * the merged osfs from all of MDT. Also clients can be
+ * mounted as long as MDT0 is in service
+ */
*osfs = *temp;
- break;
+ GOTO(out_free_temp, rc);
}
if (i == 0) {
osfs->os_files += temp->os_files;
osfs->os_granted += temp->os_granted;
}
- }
-
- EXIT;
+ }
+ /* There is no stats from some MDTs, data incomplete */
+ if (err)
+ rc = err;
out_free_temp:
- OBD_FREE(temp, sizeof(*temp));
- return rc;
+ OBD_FREE(temp, sizeof(*temp));
+ RETURN(rc);
}
-static int lmv_statfs_update(void *cookie, int rc)
+static int lmv_statfs_cb(void *cookie, int rc)
{
struct obd_info *oinfo = cookie;
struct obd_device *obd = oinfo->oi_obd;
* NB: don't deactivate TGT upon error, because we may not trigger async
* statfs any longer, then there is no chance to activate TGT.
*/
- if (!rc) {
- spin_lock(&lmv->lmv_lock);
- tgt->ltd_statfs = *osfs;
- tgt->ltd_statfs_age = ktime_get_seconds();
- spin_unlock(&lmv->lmv_lock);
- lmv->lmv_qos.lq_dirty = 1;
- }
+ if (!rc)
+ lmv_statfs_update(lmv, tgt, osfs);
return rc;
}
struct obd_info oinfo = {
.oi_obd = obd,
.oi_tgt = tgt,
- .oi_cb_up = lmv_statfs_update,
+ .oi_cb_up = lmv_statfs_cb,
};
int rc;
if (ktime_get_seconds() - tgt->ltd_statfs_age <
- obd->u.lmv.desc.ld_qos_maxage)
+ obd->u.lmv.lmv_mdt_descs.ltd_lmv_desc.ld_qos_maxage)
return 0;
rc = obd_statfs_async(tgt->ltd_exp, &oinfo, 0, NULL);
static int lmv_get_root(struct obd_export *exp, const char *fileset,
struct lu_fid *fid)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- int rc;
- ENTRY;
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lu_tgt_desc *tgt = lmv_tgt(lmv, 0);
+ int rc;
+
+ ENTRY;
- rc = md_get_root(lmv->tgts[0]->ltd_exp, fileset, fid);
+ if (!tgt)
+ RETURN(-ENODEV);
+
+ rc = md_get_root(tgt->ltd_exp, fileset, fid);
+ if (!rc)
+ lmv->lmv_setup_time = ktime_get_seconds();
RETURN(rc);
}
u64 obd_md_valid, const char *name, size_t buf_size,
struct ptlrpc_request **req)
{
- 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;
- tgt = lmv_find_target(lmv, fid);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ tgt = lmv_fid2tgt(lmv, fid);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
rc = md_getxattr(tgt->ltd_exp, fid, obd_md_valid, name, buf_size, req);
unsigned int xattr_flags, u32 suppgid,
struct ptlrpc_request **req)
{
- 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;
- tgt = lmv_find_target(lmv, fid);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ tgt = lmv_fid2tgt(lmv, fid);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
rc = md_setxattr(tgt->ltd_exp, fid, obd_md_valid, name,
value, value_size, xattr_flags, suppgid, req);
}
static int lmv_getattr(struct obd_export *exp, struct md_op_data *op_data,
- struct ptlrpc_request **request)
+ 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;
- tgt = lmv_find_target(lmv, &op_data->op_fid1);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid1);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
if (op_data->op_flags & MF_GET_MDT_IDX) {
op_data->op_mds = tgt->ltd_index;
RETURN(0);
}
- rc = md_getattr(tgt->ltd_exp, op_data, request);
+ rc = md_getattr(tgt->ltd_exp, op_data, request);
- RETURN(rc);
+ RETURN(rc);
}
static int lmv_null_inode(struct obd_export *exp, const struct lu_fid *fid)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- __u32 i;
- ENTRY;
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lu_tgt_desc *tgt;
- CDEBUG(D_INODE, "CBDATA for "DFID"\n", PFID(fid));
+ ENTRY;
+
+ CDEBUG(D_INODE, "CBDATA for "DFID"\n", PFID(fid));
/*
* With DNE every object can have two locks in different namespaces:
* lookup lock in space of MDT storing direntry and update/open lock in
* space of MDT storing inode.
*/
- for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- if (lmv->tgts[i] == NULL || lmv->tgts[i]->ltd_exp == NULL)
- continue;
- md_null_inode(lmv->tgts[i]->ltd_exp, fid);
- }
+ lmv_foreach_connected_tgt(lmv, tgt)
+ md_null_inode(tgt->ltd_exp, fid);
RETURN(0);
}
static int lmv_close(struct obd_export *exp, struct md_op_data *op_data,
- struct md_open_data *mod, struct ptlrpc_request **request)
+ struct md_open_data *mod, 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;
+
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid1);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
+
+ CDEBUG(D_INODE, "CLOSE "DFID"\n", PFID(&op_data->op_fid1));
+ rc = md_close(tgt->ltd_exp, op_data, mod, request);
+ RETURN(rc);
+}
+
+static inline bool tgt_qos_is_usable(struct lmv_obd *lmv,
+ struct lu_tgt_desc *tgt, time64_t now)
+{
+ struct obd_import *imp = class_exp2cliimp(tgt->ltd_exp);
+ u32 maxage = lmv->lmv_mdt_descs.ltd_lmv_desc.ld_qos_maxage;
+
+ return tgt->ltd_exp && tgt->ltd_active &&
+ !(tgt->ltd_statfs.os_state & OS_STATFS_NOCREATE) &&
+ (now - imp->imp_setup_time > (maxage >> 1) ||
+ now - lmv->lmv_setup_time < (maxage << 1));
+}
+
+static struct lu_tgt_desc *lmv_locate_tgt_qos(struct lmv_obd *lmv,
+ struct md_op_data *op_data)
+{
+ struct lu_tgt_desc *tgt, *cur = NULL;
+ time64_t now = ktime_get_seconds();
+ __u64 total_avail = 0;
+ __u64 total_weight = 0;
+ __u64 cur_weight = 0;
+ int total_usable = 0;
+ __u64 rand;
+ int rc;
+
+ ENTRY;
+
+ if (!ltd_qos_is_usable(&lmv->lmv_mdt_descs))
+ RETURN(ERR_PTR(-EAGAIN));
+
+ down_write(&lmv->lmv_qos.lq_rw_sem);
+
+ if (!ltd_qos_is_usable(&lmv->lmv_mdt_descs))
+ GOTO(unlock, tgt = ERR_PTR(-EAGAIN));
+
+ rc = ltd_qos_penalties_calc(&lmv->lmv_mdt_descs);
+ if (rc)
+ GOTO(unlock, tgt = ERR_PTR(rc));
+
+ lmv_foreach_tgt(lmv, tgt) {
+ if (!tgt_qos_is_usable(lmv, tgt, now)) {
+ tgt->ltd_qos.ltq_usable = 0;
+ continue;
+ }
+ /* update one hour overdue statfs */
+ if (now - tgt->ltd_statfs_age >
+ 60 * lmv->lmv_mdt_descs.ltd_lmv_desc.ld_qos_maxage)
+ lmv_statfs_check_update(lmv2obd_dev(lmv), tgt);
+ tgt->ltd_qos.ltq_usable = 1;
+ lu_tgt_qos_weight_calc(tgt, true);
+ if (tgt->ltd_index == op_data->op_mds)
+ cur = tgt;
+ total_avail += tgt->ltd_qos.ltq_avail;
+ total_weight += tgt->ltd_qos.ltq_weight;
+ total_usable++;
+ }
+
+ /* If current MDT has above-average space and dir is not already using
+ * round-robin to spread across more MDTs, stay on the parent MDT
+ * to avoid creating needless remote MDT directories. Remote dirs
+ * close to the root balance space more effectively than bottom dirs,
+ * so prefer to create remote dirs at top level of directory tree.
+ * "16 / (dir_depth + 10)" is the factor to make it less likely
+ * for top-level directories to stay local unless they have more than
+ * average free space, while deep dirs prefer local until more full.
+ * depth=0 -> 160%, depth=3 -> 123%, depth=6 -> 100%,
+ * depth=9 -> 84%, depth=12 -> 73%, depth=15 -> 64%
+ */
+ if (!lmv_op_default_rr_mkdir(op_data)) {
+ rand = total_avail * 16 /
+ (total_usable * (op_data->op_dir_depth + 10));
+ if (cur && cur->ltd_qos.ltq_avail >= rand) {
+ tgt = cur;
+ GOTO(unlock, tgt);
+ }
+ }
+
+ rand = lu_prandom_u64_max(total_weight);
+
+ lmv_foreach_connected_tgt(lmv, tgt) {
+ if (!tgt->ltd_qos.ltq_usable)
+ continue;
+
+ cur_weight += tgt->ltd_qos.ltq_weight;
+ if (cur_weight < rand)
+ continue;
+
+ ltd_qos_update(&lmv->lmv_mdt_descs, tgt, &total_weight);
+ GOTO(unlock, tgt);
+ }
+
+ /* no proper target found */
+ GOTO(unlock, tgt = ERR_PTR(-EAGAIN));
+unlock:
+ up_write(&lmv->lmv_qos.lq_rw_sem);
+
+ return tgt;
+}
+
+static struct lu_tgt_desc *lmv_locate_tgt_rr(struct lmv_obd *lmv)
+{
+ time64_t now = ktime_get_seconds();
+ struct lu_tgt_desc *tgt;
+ int i;
+ int index;
+
+ ENTRY;
+
+ spin_lock(&lmv->lmv_lock);
+ for (i = 0; i < lmv->lmv_mdt_descs.ltd_tgts_size; i++) {
+ index = (i + lmv->lmv_qos_rr_index) %
+ lmv->lmv_mdt_descs.ltd_tgts_size;
+ tgt = lmv_tgt(lmv, index);
+ if (!tgt || !tgt_qos_is_usable(lmv, tgt, now))
+ continue;
+
+ lmv->lmv_qos_rr_index = (tgt->ltd_index + 1) %
+ lmv->lmv_mdt_descs.ltd_tgts_size;
+ spin_unlock(&lmv->lmv_lock);
+
+ RETURN(tgt);
+ }
+ spin_unlock(&lmv->lmv_lock);
+
+ RETURN(ERR_PTR(-ENODEV));
+}
+
+/* locate MDT which is less full (avoid the most full MDT) */
+static struct lu_tgt_desc *lmv_locate_tgt_lf(struct lmv_obd *lmv)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_tgt_desc *tgt;
- int rc;
- ENTRY;
+ struct lu_tgt_desc *min = NULL;
+ struct lu_tgt_desc *tgt;
+ __u64 avail = 0;
+ __u64 rand;
+
+ ENTRY;
+
+ if (!ltd_qos_is_usable(&lmv->lmv_mdt_descs))
+ RETURN(ERR_PTR(-EAGAIN));
+
+ down_write(&lmv->lmv_qos.lq_rw_sem);
+
+ if (!ltd_qos_is_usable(&lmv->lmv_mdt_descs))
+ GOTO(unlock, tgt = ERR_PTR(-EAGAIN));
+
+ lmv_foreach_tgt(lmv, tgt) {
+ if (!tgt->ltd_exp || !tgt->ltd_active ||
+ (tgt->ltd_statfs.os_state & OS_STATFS_NOCREATE)) {
+ tgt->ltd_qos.ltq_usable = 0;
+ continue;
+ }
+
+ tgt->ltd_qos.ltq_usable = 1;
+ lu_tgt_qos_weight_calc(tgt, true);
+ avail += tgt->ltd_qos.ltq_avail;
+ if (!min || min->ltd_qos.ltq_avail > tgt->ltd_qos.ltq_avail)
+ min = tgt;
+ }
+
+ /* avoid the most full MDT */
+ if (min)
+ avail -= min->ltd_qos.ltq_avail;
+
+ rand = lu_prandom_u64_max(avail);
+ avail = 0;
+ lmv_foreach_connected_tgt(lmv, tgt) {
+ if (!tgt->ltd_qos.ltq_usable)
+ continue;
+
+ if (tgt == min)
+ continue;
+
+ avail += tgt->ltd_qos.ltq_avail;
+ if (avail < rand)
+ continue;
+
+ GOTO(unlock, tgt);
+ }
- tgt = lmv_find_target(lmv, &op_data->op_fid1);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ /* no proper target found */
+ GOTO(unlock, tgt = ERR_PTR(-EAGAIN));
+unlock:
+ up_write(&lmv->lmv_qos.lq_rw_sem);
- CDEBUG(D_INODE, "CLOSE "DFID"\n", PFID(&op_data->op_fid1));
- rc = md_close(tgt->ltd_exp, op_data, mod, request);
- RETURN(rc);
+ RETURN(tgt);
}
+/* locate MDT by file name, for striped directory, the file name hash decides
+ * which stripe its dirent is stored.
+ */
static struct lmv_tgt_desc *
-lmv_locate_tgt_by_name(struct lmv_obd *lmv, struct lmv_stripe_md *lsm,
+lmv_locate_tgt_by_name(struct lmv_obd *lmv, struct lmv_stripe_object *lso,
const char *name, int namelen, struct lu_fid *fid,
- __u32 *mds, bool post_migrate)
+ __u32 *mds, bool new_layout)
{
struct lmv_tgt_desc *tgt;
const struct lmv_oinfo *oinfo;
- if (!lmv_dir_striped(lsm) || !namelen) {
- tgt = lmv_find_target(lmv, fid);
+ if (!lmv_dir_striped(lso) || !namelen) {
+ tgt = lmv_fid2tgt(lmv, fid);
if (IS_ERR(tgt))
return tgt;
return tgt;
}
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_NAME_HASH)) {
- if (cfs_fail_val >= lsm->lsm_md_stripe_count)
+ if (CFS_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_NAME_HASH)) {
+ if (cfs_fail_val >= lso->lso_lsm.lsm_md_stripe_count)
return ERR_PTR(-EBADF);
- oinfo = &lsm->lsm_md_oinfo[cfs_fail_val];
+ oinfo = &lso->lso_lsm.lsm_md_oinfo[cfs_fail_val];
} else {
- oinfo = lsm_name_to_stripe_info(lsm, name, namelen,
- post_migrate);
+ oinfo = lsm_name_to_stripe_info(lso, name, namelen, new_layout);
if (IS_ERR(oinfo))
return ERR_CAST(oinfo);
}
+ /* check stripe FID is sane */
+ if (!fid_is_sane(&oinfo->lmo_fid))
+ return ERR_PTR(-ENODEV);
+
*fid = oinfo->lmo_fid;
*mds = oinfo->lmo_mds;
- tgt = lmv_get_target(lmv, oinfo->lmo_mds, NULL);
+ tgt = lmv_tgt_retry(lmv, oinfo->lmo_mds);
CDEBUG(D_INODE, "locate MDT %u parent "DFID"\n", *mds, PFID(fid));
- return tgt;
+ return tgt ? tgt : ERR_PTR(-ENODEV);
}
/**
*
* For striped directory, it will locate the stripe by name hash, if hash_type
* is unknown, it will return the stripe specified by 'op_data->op_stripe_index'
- * which is set outside, and if dir is migrating, 'op_data->op_post_migrate'
+ * which is set outside, and if dir is migrating, 'op_data->op_new_layout'
* indicates whether old or new layout is used to locate.
*
- * For plain direcotry, normally it will locate MDT by FID, but if this
- * directory has default LMV, and its hash type is "space", locate MDT with QoS.
+ * For plain directory, it just locate the MDT of op_data->op_fid1.
*
- * \param[in] lmv LMV device
- * \param[in] op_data client MD stack parameters, name, namelen
- * mds_num etc.
+ * \param[in] lmv LMV device
+ * \param[in/out] op_data client MD stack parameters, name, namelen etc,
+ * op_mds and op_fid1 will be updated if op_lso1
+ * indicates fid1 represents a striped directory.
*
* retval pointer to the lmv_tgt_desc if succeed.
* ERR_PTR(errno) if failed.
struct lmv_tgt_desc *
lmv_locate_tgt(struct lmv_obd *lmv, struct md_op_data *op_data)
{
- struct lmv_stripe_md *lsm = op_data->op_mea1;
+ struct lmv_stripe_md *lsm;
struct lmv_oinfo *oinfo;
struct lmv_tgt_desc *tgt;
- if (lmv_dir_foreign(lsm))
+ if (lmv_dir_foreign(op_data->op_lso1))
return ERR_PTR(-ENODATA);
/* During creating VOLATILE file, it should honor the mdt
* index if the file under striped dir is being restored, see
- * ct_restore(). */
+ * ct_restore().
+ */
if (op_data->op_bias & MDS_CREATE_VOLATILE &&
- (int)op_data->op_mds != -1) {
- tgt = lmv_get_target(lmv, op_data->op_mds, NULL);
- if (IS_ERR(tgt))
- return tgt;
+ op_data->op_mds != LMV_OFFSET_DEFAULT) {
+ tgt = lmv_tgt(lmv, op_data->op_mds);
+ if (!tgt)
+ return ERR_PTR(-ENODEV);
- if (lmv_dir_striped(lsm)) {
+ if (lmv_dir_striped(op_data->op_lso1)) {
int i;
/* refill the right parent fid */
+ lsm = &op_data->op_lso1->lso_lsm;
for (i = 0; i < lsm->lsm_md_stripe_count; i++) {
oinfo = &lsm->lsm_md_oinfo[i];
if (oinfo->lmo_mds == op_data->op_mds) {
if (i == lsm->lsm_md_stripe_count)
op_data->op_fid1 = lsm->lsm_md_oinfo[0].lmo_fid;
}
- } else if (lmv_dir_bad_hash(lsm)) {
+ } else if (lmv_dir_bad_hash(op_data->op_lso1)) {
+ lsm = &op_data->op_lso1->lso_lsm;
+
LASSERT(op_data->op_stripe_index < lsm->lsm_md_stripe_count);
oinfo = &lsm->lsm_md_oinfo[op_data->op_stripe_index];
op_data->op_fid1 = oinfo->lmo_fid;
op_data->op_mds = oinfo->lmo_mds;
- tgt = lmv_get_target(lmv, oinfo->lmo_mds, NULL);
- } else if (op_data->op_code == LUSTRE_OPC_MKDIR &&
- lmv_dir_qos_mkdir(op_data->op_default_mea1) &&
- !lmv_dir_striped(lsm)) {
- tgt = lmv_locate_tgt_qos(lmv, &op_data->op_mds);
- if (tgt == ERR_PTR(-EAGAIN))
- tgt = lmv_locate_tgt_rr(lmv, &op_data->op_mds);
- /*
- * only update statfs when mkdir under dir with "space" hash,
- * this means the cached statfs may be stale, and current mkdir
- * may not follow QoS accurately, but it's not serious, and it
- * avoids periodic statfs when client doesn't mkdir under
- * "space" hashed directories.
- *
- * TODO: after MDT support QoS object allocation, also update
- * statfs for 'lfs mkdir -i -1 ...", currently it's done in user
- * space.
- */
- if (!IS_ERR(tgt)) {
- struct obd_device *obd;
-
- obd = container_of(lmv, struct obd_device, u.lmv);
- lmv_statfs_check_update(obd, tgt);
- }
+ tgt = lmv_tgt(lmv, oinfo->lmo_mds);
+ if (!tgt)
+ return ERR_PTR(-ENODEV);
} else {
- tgt = lmv_locate_tgt_by_name(lmv, op_data->op_mea1,
+ tgt = lmv_locate_tgt_by_name(lmv, op_data->op_lso1,
op_data->op_name, op_data->op_namelen,
&op_data->op_fid1, &op_data->op_mds,
- op_data->op_post_migrate);
+ op_data->op_new_layout);
}
return tgt;
int rc;
LASSERT(op_data->op_name);
- if (lmv_dir_migrating(op_data->op_mea2)) {
+ if (lmv_dir_layout_changing(op_data->op_lso2)) {
struct lu_fid fid1 = op_data->op_fid1;
- struct lmv_stripe_md *lsm1 = op_data->op_mea1;
+ struct lmv_stripe_object *lso1 = op_data->op_lso1;
struct ptlrpc_request *request = NULL;
/*
* avoid creating new file under old layout of migrating
* directory, check it here.
*/
- tgt = lmv_locate_tgt_by_name(lmv, op_data->op_mea2,
+ tgt = lmv_locate_tgt_by_name(lmv, op_data->op_lso2,
op_data->op_name, op_data->op_namelen,
&op_data->op_fid2, &op_data->op_mds, false);
if (IS_ERR(tgt))
RETURN(tgt);
op_data->op_fid1 = op_data->op_fid2;
- op_data->op_mea1 = op_data->op_mea2;
+ op_data->op_lso1 = op_data->op_lso2;
rc = md_getattr_name(tgt->ltd_exp, op_data, &request);
op_data->op_fid1 = fid1;
- op_data->op_mea1 = lsm1;
+ op_data->op_lso1 = lso1;
if (!rc) {
ptlrpc_req_finished(request);
RETURN(ERR_PTR(-EEXIST));
RETURN(ERR_PTR(rc));
}
- return lmv_locate_tgt_by_name(lmv, op_data->op_mea2, op_data->op_name,
- op_data->op_namelen, &op_data->op_fid2,
- &op_data->op_mds, true);
+ return lmv_locate_tgt_by_name(lmv, op_data->op_lso2,
+ op_data->op_name, op_data->op_namelen,
+ &op_data->op_fid2, &op_data->op_mds,
+ true);
+}
+
+int lmv_old_layout_lookup(struct lmv_obd *lmv, struct md_op_data *op_data)
+{
+ struct lu_tgt_desc *tgt;
+ struct ptlrpc_request *request;
+ int rc;
+
+ LASSERT(lmv_dir_layout_changing(op_data->op_lso1));
+ LASSERT(!op_data->op_new_layout);
+
+ tgt = lmv_locate_tgt(lmv, op_data);
+ if (IS_ERR(tgt))
+ return PTR_ERR(tgt);
+
+ rc = md_getattr_name(tgt->ltd_exp, op_data, &request);
+ if (!rc) {
+ ptlrpc_req_finished(request);
+ return -EEXIST;
+ }
+
+ return rc;
+}
+
+/* mkdir by QoS upon 'lfs mkdir -i -1'.
+ *
+ * NB, mkdir by QoS only if parent is not striped, this is to avoid remote
+ * directories under striped directory.
+ */
+static inline bool lmv_op_user_qos_mkdir(const struct md_op_data *op_data)
+{
+ const struct lmv_user_md *lum = op_data->op_data;
+
+ if (op_data->op_code != LUSTRE_OPC_MKDIR)
+ return false;
+
+ if (lmv_dir_striped(op_data->op_lso1))
+ return false;
+
+ return (op_data->op_cli_flags & CLI_SET_MEA) && lum &&
+ le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC &&
+ le32_to_cpu(lum->lum_stripe_offset) == LMV_OFFSET_DEFAULT;
+}
+
+/* mkdir by QoS if either ROOT or parent default LMV is space balanced. */
+static inline bool lmv_op_default_qos_mkdir(const struct md_op_data *op_data)
+{
+ const struct lmv_stripe_object *lso = op_data->op_default_lso1;
+
+ if (op_data->op_code != LUSTRE_OPC_MKDIR)
+ return false;
+
+ if (lmv_dir_striped(op_data->op_lso1))
+ return false;
+
+ return (op_data->op_flags & MF_QOS_MKDIR) ||
+ (lso && lso->lso_lsm.lsm_md_master_mdt_index ==
+ LMV_OFFSET_DEFAULT);
+}
+
+/* if parent default LMV is space balanced, and
+ * 1. max_inherit_rr is set
+ * 2. or parent is ROOT
+ * mkdir roundrobin. Or if parent doesn't have default LMV, while ROOT default
+ * LMV requests roundrobin mkdir, do the same.
+ * NB, this needs to check server is balanced, which is done by caller.
+ */
+static inline bool lmv_op_default_rr_mkdir(const struct md_op_data *op_data)
+{
+ const struct lmv_stripe_object *lso = op_data->op_default_lso1;
+
+ return (op_data->op_flags & MF_RR_MKDIR) ||
+ (lso && lso->lso_lsm.lsm_md_max_inherit_rr !=
+ LMV_INHERIT_RR_NONE) || fid_is_root(&op_data->op_fid1);
+}
+
+/* 'lfs mkdir -i <specific_MDT>' */
+static inline bool lmv_op_user_specific_mkdir(const struct md_op_data *op_data)
+{
+ const struct lmv_user_md *lum = op_data->op_data;
+
+ return op_data->op_code == LUSTRE_OPC_MKDIR &&
+ op_data->op_cli_flags & CLI_SET_MEA && lum &&
+ (le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC ||
+ le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC_SPECIFIC) &&
+ le32_to_cpu(lum->lum_stripe_offset) != LMV_OFFSET_DEFAULT;
+}
+
+/* parent default LMV master_mdt_index is not -1. */
+static inline bool
+lmv_op_default_specific_mkdir(const struct md_op_data *op_data)
+{
+ return op_data->op_code == LUSTRE_OPC_MKDIR &&
+ op_data->op_default_lso1 &&
+ op_data->op_default_lso1->lso_lsm.lsm_md_master_mdt_index !=
+ LMV_OFFSET_DEFAULT;
+}
+
+/* locate MDT by space usage */
+static struct lu_tgt_desc *lmv_locate_tgt_by_space(struct lmv_obd *lmv,
+ struct md_op_data *op_data,
+ struct lmv_tgt_desc *tgt)
+{
+ struct lmv_tgt_desc *tmp = tgt;
+
+ tgt = lmv_locate_tgt_qos(lmv, op_data);
+ if (tgt == ERR_PTR(-EAGAIN)) {
+ if (ltd_qos_is_balanced(&lmv->lmv_mdt_descs) &&
+ !lmv_op_default_rr_mkdir(op_data) &&
+ !lmv_op_user_qos_mkdir(op_data) &&
+ !(tmp->ltd_statfs.os_state & OS_STATFS_NOCREATE)) {
+ /* if not necessary, don't create remote directory. */
+ tgt = tmp;
+ } else {
+ tgt = lmv_locate_tgt_rr(lmv);
+ /* if no MDT chosen, use parent MDT */
+ if (IS_ERR(tgt))
+ tgt = tmp;
+ }
+ if (!IS_ERR(tgt))
+ lmv_statfs_check_update(lmv2obd_dev(lmv), tgt);
+ }
+
+ if (!IS_ERR(tgt))
+ op_data->op_mds = tgt->ltd_index;
+
+ /* If space balance was called because the original target was marked
+ * NOCREATE, periodically check whether the state has changed.
+ */
+ if (tmp != tgt && tmp->ltd_statfs.os_state & OS_STATFS_NOCREATE)
+ lmv_statfs_check_update(lmv2obd_dev(lmv), tmp);
+
+ return tgt;
+}
+
+static bool lmv_qos_exclude(struct lmv_obd *lmv, struct md_op_data *op_data)
+{
+ const char *name = op_data->op_name;
+ size_t namelen = op_data->op_namelen;
+ char buf[NAME_MAX + 1];
+ struct qos_exclude_prefix *prefix;
+ char *p;
+
+ /* skip encrypted files */
+ if (op_data->op_file_encctx)
+ return false;
+
+ /* name length may not be validated yet */
+ if (namelen > NAME_MAX)
+ return false;
+
+ p = strrchr(name, '.');
+ if (p) {
+ namelen = p - name;
+ if (!namelen)
+ return false;
+ strncpy(buf, name, namelen);
+ buf[namelen] = '\0';
+ name = buf;
+ }
+
+ prefix = rhashtable_lookup_fast(&lmv->lmv_qos_exclude_hash, name,
+ qos_exclude_hash_params);
+ return prefix != NULL;
}
-int lmv_create(struct obd_export *exp, struct md_op_data *op_data,
- const void *data, size_t datalen, umode_t mode, uid_t uid,
- gid_t gid, cfs_cap_t cap_effective, __u64 rdev,
- struct ptlrpc_request **request)
+static int lmv_create(struct obd_export *exp, struct md_op_data *op_data,
+ const void *data, size_t datalen, umode_t mode, uid_t uid,
+ gid_t gid, kernel_cap_t cap_effective, __u64 rdev,
+ struct ptlrpc_request **request)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
struct lmv_tgt_desc *tgt;
+ struct mdt_body *repbody;
int rc;
ENTRY;
- if (!lmv->desc.ld_active_tgt_count)
+ if (!lmv->lmv_mdt_descs.ltd_lmv_desc.ld_active_tgt_count)
RETURN(-EIO);
- if (lmv_dir_bad_hash(op_data->op_mea1))
+ if (lmv_dir_bad_hash(op_data->op_lso1))
RETURN(-EBADF);
- if (lmv_dir_migrating(op_data->op_mea1)) {
+ if (lmv_dir_layout_changing(op_data->op_lso1)) {
/*
* if parent is migrating, create() needs to lookup existing
- * name, to avoid creating new file under old layout of
- * migrating directory, check old layout here.
+ * name in both old and new layout, check old layout on client.
*/
- tgt = lmv_locate_tgt(lmv, op_data);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
-
- rc = md_getattr_name(tgt->ltd_exp, op_data, request);
- if (!rc) {
- ptlrpc_req_finished(*request);
- *request = NULL;
- RETURN(-EEXIST);
- }
-
+ rc = lmv_old_layout_lookup(lmv, op_data);
if (rc != -ENOENT)
RETURN(rc);
- op_data->op_post_migrate = true;
+ op_data->op_new_layout = true;
}
tgt = lmv_locate_tgt(lmv, op_data);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
- CDEBUG(D_INODE, "CREATE name '%.*s' on "DFID" -> mds #%x\n",
- (int)op_data->op_namelen, op_data->op_name,
- PFID(&op_data->op_fid1), op_data->op_mds);
+ /* the order to apply policy in mkdir:
+ * 1. is "lfs mkdir -i N"? mkdir on MDT N.
+ * 2. is "lfs mkdir -i -1"? mkdir by space usage.
+ * 3. is starting MDT specified in default LMV? mkdir on MDT N.
+ * 4. is default LMV space balanced? mkdir by space usage.
+ *
+ * If the existing parent or specific MDT selected is deactivated
+ * with OS_STATFS_NOCREATE then select a different MDT by QOS.
+ */
+ if (lmv_op_user_specific_mkdir(op_data)) {
+ struct lmv_user_md *lum = op_data->op_data;
+
+ op_data->op_mds = le32_to_cpu(lum->lum_stripe_offset);
+ tgt = lmv_tgt(lmv, op_data->op_mds);
+ if (!tgt)
+ RETURN(-ENODEV);
+ if (unlikely(tgt->ltd_statfs.os_state & OS_STATFS_NOCREATE))
+ GOTO(new_tgt, -EAGAIN);
+ } else if (lmv_op_user_qos_mkdir(op_data)) {
+ tgt = lmv_locate_tgt_by_space(lmv, op_data, tgt);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
+ } else if (lmv_op_default_specific_mkdir(op_data)) {
+ struct lmv_stripe_md *lsm = &op_data->op_default_lso1->lso_lsm;
+
+ op_data->op_mds = lsm->lsm_md_master_mdt_index;
+ tgt = lmv_tgt(lmv, op_data->op_mds);
+ if (!tgt)
+ RETURN(-ENODEV);
+ if (unlikely(tgt->ltd_statfs.os_state & OS_STATFS_NOCREATE))
+ GOTO(new_tgt, -EAGAIN);
+ } else if ((lmv_op_default_qos_mkdir(op_data) &&
+ !lmv_qos_exclude(lmv, op_data)) ||
+ tgt->ltd_statfs.os_state & OS_STATFS_NOCREATE) {
+new_tgt:
+ tgt = lmv_locate_tgt_by_space(lmv, op_data, tgt);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
+ }
+retry:
rc = lmv_fid_alloc(NULL, exp, &op_data->op_fid2, op_data);
if (rc)
RETURN(rc);
- if (exp_connect_flags(exp) & OBD_CONNECT_DIR_STRIPE) {
- /* Send the create request to the MDT where the object
- * will be located */
- tgt = lmv_find_target(lmv, &op_data->op_fid2);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
-
- op_data->op_mds = tgt->ltd_index;
- }
-
- CDEBUG(D_INODE, "CREATE obj "DFID" -> mds #%x\n",
- PFID(&op_data->op_fid2), op_data->op_mds);
+ CDEBUG(D_INODE, "CREATE name '%.*s' "DFID" on "DFID" -> mds #%x\n",
+ (int)op_data->op_namelen, op_data->op_name,
+ PFID(&op_data->op_fid2), PFID(&op_data->op_fid1),
+ op_data->op_mds);
op_data->op_flags |= MF_MDC_CANCEL_FID1;
rc = md_create(tgt->ltd_exp, op_data, data, datalen, mode, uid, gid,
RETURN(rc);
CDEBUG(D_INODE, "Created - "DFID"\n", PFID(&op_data->op_fid2));
}
- RETURN(rc);
+
+ /* dir restripe needs to send to MDT where dir is located */
+ if (rc != -EREMOTE ||
+ !(exp_connect_flags2(exp) & OBD_CONNECT2_CRUSH))
+ RETURN(rc);
+
+ repbody = req_capsule_server_get(&(*request)->rq_pill, &RMF_MDT_BODY);
+ if (repbody == NULL)
+ RETURN(-EPROTO);
+
+ /* Not cross-ref case, just get out of here. */
+ if (likely(!(repbody->mbo_valid & OBD_MD_MDS)))
+ RETURN(rc);
+
+ op_data->op_fid2 = repbody->mbo_fid1;
+ ptlrpc_req_finished(*request);
+ *request = NULL;
+
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid2);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
+
+ op_data->op_mds = tgt->ltd_index;
+ goto retry;
}
static int
const union ldlm_policy_data *policy, struct md_op_data *op_data,
struct lustre_handle *lockh, __u64 extra_lock_flags)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_tgt_desc *tgt;
- int rc;
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
+ int rc;
+
ENTRY;
CDEBUG(D_INODE, "ENQUEUE on "DFID"\n", PFID(&op_data->op_fid1));
- tgt = lmv_find_target(lmv, &op_data->op_fid1);
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid1);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
}
int
-lmv_getattr_name(struct obd_export *exp,struct md_op_data *op_data,
+lmv_getattr_name(struct obd_export *exp, struct md_op_data *op_data,
struct ptlrpc_request **preq)
{
struct obd_device *obd = exp->exp_obd;
ENTRY;
retry:
- tgt = lmv_locate_tgt(lmv, op_data);
+ if (op_data->op_namelen == 2 &&
+ op_data->op_name[0] == '.' && op_data->op_name[1] == '.')
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid1);
+ else
+ tgt = lmv_locate_tgt(lmv, op_data);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
}
#define md_op_data_fid(op_data, fl) \
- (fl == MF_MDC_CANCEL_FID1 ? &op_data->op_fid1 : \
- fl == MF_MDC_CANCEL_FID2 ? &op_data->op_fid2 : \
- fl == MF_MDC_CANCEL_FID3 ? &op_data->op_fid3 : \
- fl == MF_MDC_CANCEL_FID4 ? &op_data->op_fid4 : \
- NULL)
+ (fl == MF_MDC_CANCEL_FID1 ? &op_data->op_fid1 : \
+ fl == MF_MDC_CANCEL_FID2 ? &op_data->op_fid2 : \
+ fl == MF_MDC_CANCEL_FID3 ? &op_data->op_fid3 : \
+ fl == MF_MDC_CANCEL_FID4 ? &op_data->op_fid4 : \
+ NULL)
static int lmv_early_cancel(struct obd_export *exp, struct lmv_tgt_desc *tgt,
struct md_op_data *op_data, __u32 op_tgt,
struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
union ldlm_policy_data policy = { { 0 } };
int rc = 0;
+
ENTRY;
if (!fid_is_sane(fid))
RETURN(0);
if (tgt == NULL) {
- tgt = lmv_find_target(lmv, fid);
+ tgt = lmv_fid2tgt(lmv, fid);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
}
}
/*
- * llite passes fid of an target inode in op_data->op_fid1 and id of directory in
- * op_data->op_fid2
+ * llite passes fid of an target inode in op_data->op_fid1 and id of directory
+ * in op_data->op_fid2
*/
static int lmv_link(struct obd_export *exp, struct md_op_data *op_data,
- struct ptlrpc_request **request)
+ 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;
LASSERT(op_data->op_namelen != 0);
op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid());
op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid());
- op_data->op_cap = cfs_curproc_cap_pack();
+ op_data->op_cap = current_cap();
tgt = lmv_locate_tgt2(lmv, op_data);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
- /*
- * Cancel UPDATE lock on child (fid1).
- */
+ /* Cancel UPDATE lock on child (fid1). */
op_data->op_flags |= MF_MDC_CANCEL_FID2;
rc = lmv_early_cancel(exp, NULL, op_data, tgt->ltd_index, LCK_EX,
MDS_INODELOCK_UPDATE, MF_MDC_CANCEL_FID1);
RETURN(rc);
}
+/* migrate the top directory */
+static inline bool lmv_op_topdir_migrate(const struct md_op_data *op_data)
+{
+ if (!S_ISDIR(op_data->op_mode))
+ return false;
+
+ if (lmv_dir_layout_changing(op_data->op_lso1))
+ return false;
+
+ return true;
+}
+
+/* migrate top dir to specific MDTs */
+static inline bool lmv_topdir_specific_migrate(const struct md_op_data *op_data)
+{
+ const struct lmv_user_md *lum = op_data->op_data;
+
+ if (!lmv_op_topdir_migrate(op_data))
+ return false;
+
+ return le32_to_cpu(lum->lum_stripe_offset) != LMV_OFFSET_DEFAULT;
+}
+
+/* migrate top dir in QoS mode if user issued "lfs migrate -m -1..." */
+static inline bool lmv_topdir_qos_migrate(const struct md_op_data *op_data)
+{
+ const struct lmv_user_md *lum = op_data->op_data;
+
+ if (!lmv_op_topdir_migrate(op_data))
+ return false;
+
+ return le32_to_cpu(lum->lum_stripe_offset) == LMV_OFFSET_DEFAULT;
+}
+
+static inline bool lmv_subdir_specific_migrate(const struct md_op_data *op_data)
+{
+ const struct lmv_user_md *lum = op_data->op_data;
+
+ if (!S_ISDIR(op_data->op_mode))
+ return false;
+
+ if (!lmv_dir_layout_changing(op_data->op_lso1))
+ return false;
+
+ return le32_to_cpu(lum->lum_stripe_offset) != LMV_OFFSET_DEFAULT;
+}
+
static int lmv_migrate(struct obd_export *exp, struct md_op_data *op_data,
const char *name, size_t namelen,
struct ptlrpc_request **request)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_stripe_md *lsm = op_data->op_mea1;
+ struct lmv_stripe_object *lso = op_data->op_lso1;
struct lmv_tgt_desc *parent_tgt;
struct lmv_tgt_desc *sp_tgt;
struct lmv_tgt_desc *tp_tgt = NULL;
struct lmv_tgt_desc *child_tgt;
struct lmv_tgt_desc *tgt;
- struct lu_fid target_fid;
+ struct lu_fid target_fid = { 0 };
int rc;
ENTRY;
op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid());
op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid());
- op_data->op_cap = cfs_curproc_cap_pack();
+ op_data->op_cap = current_cap();
- parent_tgt = lmv_find_target(lmv, &op_data->op_fid1);
+ parent_tgt = lmv_fid2tgt(lmv, &op_data->op_fid1);
if (IS_ERR(parent_tgt))
RETURN(PTR_ERR(parent_tgt));
- if (lmv_dir_striped(lsm)) {
- __u32 hash_type = lsm->lsm_md_hash_type;
- __u32 stripe_count = lsm->lsm_md_stripe_count;
+ if (lmv_dir_striped(lso)) {
+ const struct lmv_oinfo *oinfo;
- /*
- * old stripes are appended after new stripes for migrating
- * directory.
- */
- if (lmv_dir_migrating(lsm)) {
- hash_type = lsm->lsm_md_migrate_hash;
- stripe_count -= lsm->lsm_md_migrate_offset;
- }
-
- rc = lmv_name_to_stripe_index(hash_type, stripe_count, name,
- namelen);
- if (rc < 0)
- RETURN(rc);
-
- if (lmv_dir_migrating(lsm))
- rc += lsm->lsm_md_migrate_offset;
+ oinfo = lsm_name_to_stripe_info(lso, name, namelen, false);
+ if (IS_ERR(oinfo))
+ RETURN(PTR_ERR(oinfo));
- /* save it in fid4 temporarily for early cancel */
- op_data->op_fid4 = lsm->lsm_md_oinfo[rc].lmo_fid;
- sp_tgt = lmv_get_target(lmv, lsm->lsm_md_oinfo[rc].lmo_mds,
- NULL);
- if (IS_ERR(sp_tgt))
- RETURN(PTR_ERR(sp_tgt));
+ /* save source stripe FID in fid4 temporarily for ELC */
+ op_data->op_fid4 = oinfo->lmo_fid;
+ sp_tgt = lmv_tgt_retry(lmv, oinfo->lmo_mds);
+ if (!sp_tgt)
+ RETURN(-ENODEV);
/*
* if parent is being migrated too, fill op_fid2 with target
* stripe fid, otherwise the target stripe is not created yet.
*/
- if (lmv_dir_migrating(lsm)) {
- hash_type = lsm->lsm_md_hash_type &
- ~LMV_HASH_FLAG_MIGRATION;
- stripe_count = lsm->lsm_md_migrate_offset;
-
- rc = lmv_name_to_stripe_index(hash_type, stripe_count,
- name, namelen);
- if (rc < 0)
- RETURN(rc);
-
- op_data->op_fid2 = lsm->lsm_md_oinfo[rc].lmo_fid;
- tp_tgt = lmv_get_target(lmv,
- lsm->lsm_md_oinfo[rc].lmo_mds,
- NULL);
- if (IS_ERR(tp_tgt))
- RETURN(PTR_ERR(tp_tgt));
+ if (lmv_dir_layout_changing(lso)) {
+ oinfo = lsm_name_to_stripe_info(lso, name, namelen,
+ true);
+ if (IS_ERR(oinfo))
+ RETURN(PTR_ERR(oinfo));
+
+ op_data->op_fid2 = oinfo->lmo_fid;
+ tp_tgt = lmv_tgt_retry(lmv, oinfo->lmo_mds);
+ if (!tp_tgt)
+ RETURN(-ENODEV);
+
+ /* parent unchanged and update namespace only */
+ if (lu_fid_eq(&op_data->op_fid4, &op_data->op_fid2) &&
+ op_data->op_bias & MDS_MIGRATE_NSONLY)
+ RETURN(-EALREADY);
}
} else {
sp_tgt = parent_tgt;
}
- child_tgt = lmv_find_target(lmv, &op_data->op_fid3);
+ child_tgt = lmv_fid2tgt(lmv, &op_data->op_fid3);
if (IS_ERR(child_tgt))
RETURN(PTR_ERR(child_tgt));
- if (!S_ISDIR(op_data->op_mode) && tp_tgt)
- rc = __lmv_fid_alloc(lmv, &target_fid, tp_tgt->ltd_index);
- else
- rc = lmv_fid_alloc(NULL, exp, &target_fid, op_data);
+ if (lmv_topdir_specific_migrate(op_data)) {
+ struct lmv_user_md *lum = op_data->op_data;
+
+ op_data->op_mds = le32_to_cpu(lum->lum_stripe_offset);
+ } else if (lmv_topdir_qos_migrate(op_data)) {
+ tgt = lmv_locate_tgt_lf(lmv);
+ if (tgt == ERR_PTR(-EAGAIN))
+ tgt = lmv_locate_tgt_rr(lmv);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
+
+ op_data->op_mds = tgt->ltd_index;
+ } else if (lmv_subdir_specific_migrate(op_data)) {
+ struct lmv_user_md *lum = op_data->op_data;
+ __u32 i;
+
+ LASSERT(tp_tgt);
+ if (le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC_SPECIFIC) {
+ /* adjust MDTs in lum, since subdir is located on where
+ * its parent stripe is, not the first specified MDT.
+ */
+ for (i = 0; i < le32_to_cpu(lum->lum_stripe_count);
+ i++) {
+ if (le32_to_cpu(lum->lum_objects[i].lum_mds) ==
+ tp_tgt->ltd_index)
+ break;
+ }
+
+ if (i == le32_to_cpu(lum->lum_stripe_count))
+ RETURN(-ENODEV);
+
+ lum->lum_objects[i].lum_mds =
+ lum->lum_objects[0].lum_mds;
+ lum->lum_objects[0].lum_mds =
+ cpu_to_le32(tp_tgt->ltd_index);
+ }
+ /* NB, the above adjusts subdir migration for command like
+ * "lfs migrate -m 0,1,2 ...", but for migration like
+ * "lfs migrate -m 0 -c 2 ...", the top dir is migrated to MDT0
+ * and MDT1, however its subdir may be migrated to MDT1 and MDT2
+ */
+
+ lum->lum_stripe_offset = cpu_to_le32(tp_tgt->ltd_index);
+ op_data->op_mds = tp_tgt->ltd_index;
+ } else if (tp_tgt) {
+ op_data->op_mds = tp_tgt->ltd_index;
+ } else {
+ op_data->op_mds = sp_tgt->ltd_index;
+ }
+
+ rc = lmv_fid_alloc(NULL, exp, &target_fid, op_data);
if (rc)
RETURN(rc);
*/
if (S_ISDIR(op_data->op_mode) &&
(exp_connect_flags2(exp) & OBD_CONNECT2_DIR_MIGRATE)) {
- tgt = lmv_find_target(lmv, &target_fid);
+ tgt = lmv_fid2tgt(lmv, &target_fid);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
} else {
op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid());
op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid());
- op_data->op_cap = cfs_curproc_cap_pack();
+ op_data->op_cap = current_cap();
op_data->op_name = new;
op_data->op_namelen = newlen;
* orphan, and we can only check orphan on the local MDT right now, so
* we send rename request to the MDT where target child is located. If
* target child does not exist, then it will send the request to the
- * target parent */
+ * target parent
+ */
if (fid_is_sane(&op_data->op_fid4)) {
- tgt = lmv_find_target(lmv, &op_data->op_fid4);
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid4);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
} else {
}
if (fid_is_sane(&op_data->op_fid3)) {
- src_tgt = lmv_find_target(lmv, &op_data->op_fid3);
+ src_tgt = lmv_fid2tgt(lmv, &op_data->op_fid3);
if (IS_ERR(src_tgt))
RETURN(PTR_ERR(src_tgt));
ptlrpc_req_finished(*request);
*request = NULL;
- tgt = lmv_find_target(lmv, &op_data->op_fid4);
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid4);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
static int lmv_setattr(struct obd_export *exp, struct md_op_data *op_data,
void *ea, size_t ealen, 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 = 0;
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
+ int rc = 0;
+
ENTRY;
CDEBUG(D_INODE, "SETATTR for "DFID", valid 0x%x/0x%x\n",
op_data->op_xvalid);
op_data->op_flags |= MF_MDC_CANCEL_FID1;
- tgt = lmv_find_target(lmv, &op_data->op_fid1);
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid1);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
static int lmv_fsync(struct obd_export *exp, const struct lu_fid *fid,
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;
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
+ int rc;
+
ENTRY;
- tgt = lmv_find_target(lmv, fid);
+ tgt = lmv_fid2tgt(lmv, fid);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
struct lmv_dir_ctxt {
struct lmv_obd *ldc_lmv;
struct md_op_data *ldc_op_data;
- struct md_callback *ldc_cb_op;
+ struct md_readdir_info *ldc_mrinfo;
__u64 ldc_hash;
int ldc_count;
struct stripe_dirent ldc_stripes[0];
/* @hash should be the last dirent hash */
LASSERTF(hash <= end,
- "ctxt@%p stripe@%p hash %llx end %llx\n",
+ "ctxt@%px stripe@%px hash %llx end %llx\n",
ctxt, stripe, hash, end);
/* unload last page */
stripe_dirent_unload(stripe);
hash = end;
}
- oinfo = &op_data->op_mea1->lsm_md_oinfo[stripe_index];
+ oinfo = &op_data->op_lso1->lso_lsm.lsm_md_oinfo[stripe_index];
if (!oinfo->lmo_root) {
rc = -ENOENT;
break;
}
- tgt = lmv_get_target(ctxt->ldc_lmv, oinfo->lmo_mds, NULL);
- if (IS_ERR(tgt)) {
- rc = PTR_ERR(tgt);
+ tgt = lmv_tgt_retry(ctxt->ldc_lmv, oinfo->lmo_mds);
+ if (!tgt) {
+ rc = -ENODEV;
break;
}
op_data->op_fid2 = oinfo->lmo_fid;
op_data->op_data = oinfo->lmo_root;
- rc = md_read_page(tgt->ltd_exp, op_data, ctxt->ldc_cb_op, hash,
+ rc = md_read_page(tgt->ltd_exp, op_data, ctxt->ldc_mrinfo, hash,
&stripe->sd_page);
op_data->op_fid1 = fid;
LASSERT(!ent);
/* treat error as eof, so dir can be partially accessed */
stripe->sd_eof = true;
- LCONSOLE_WARN("dir "DFID" stripe %d readdir failed: %d, "
- "directory is partially accessed!\n",
+ ctxt->ldc_mrinfo->mr_partial_readdir_rc = rc;
+ LCONSOLE_WARN("dir "DFID" stripe %d readdir failed: %d, directory is partially accessed!\n",
PFID(&ctxt->ldc_op_data->op_fid1), stripe_index,
rc);
}
static int lmv_file_resync(struct obd_export *exp, struct md_op_data *data)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_tgt_desc *tgt;
- int rc;
+ 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 != 0)
RETURN(rc);
- tgt = lmv_find_target(lmv, &data->op_fid1);
+ tgt = lmv_fid2tgt(lmv, &data->op_fid1);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
*
* \param[in] exp obd export refer to LMV
* \param[in] op_data hold those MD parameters of read_entry
- * \param[in] cb_op ldlm callback being used in enqueue in mdc_read_entry
+ * \param[in] mrinfo ldlm callback being used in enqueue in mdc_read_entry,
+ * and partial readdir result will be stored in it.
* \param[in] offset starting hash offset
* \param[out] ppage the page holding the entry. Note: because the entry
* will be accessed in upper layer, so we need hold the
*/
static int lmv_striped_read_page(struct obd_export *exp,
struct md_op_data *op_data,
- struct md_callback *cb_op,
- __u64 offset, struct page **ppage)
+ struct md_readdir_info *mrinfo, __u64 offset,
+ struct page **ppage)
{
struct page *page = NULL;
struct lu_dirpage *dp;
__u16 ent_size;
size_t left_bytes;
int rc = 0;
+
ENTRY;
/* Allocate a page and read entries from all of stripes and fill
- * the page by hash order */
+ * the page by hash order
+ */
page = alloc_page(GFP_KERNEL);
if (!page)
RETURN(-ENOMEM);
last_ent = ent;
/* initalize dir read context */
- stripe_count = op_data->op_mea1->lsm_md_stripe_count;
+ stripe_count = op_data->op_lso1->lso_lsm.lsm_md_stripe_count;
OBD_ALLOC(ctxt, offsetof(typeof(*ctxt), ldc_stripes[stripe_count]));
if (!ctxt)
GOTO(free_page, rc = -ENOMEM);
ctxt->ldc_lmv = &exp->exp_obd->u.lmv;
ctxt->ldc_op_data = op_data;
- ctxt->ldc_cb_op = cb_op;
+ ctxt->ldc_mrinfo = mrinfo;
ctxt->ldc_hash = offset;
ctxt->ldc_count = stripe_count;
ent_size = le16_to_cpu(next->lde_reclen);
/* the last entry lde_reclen is 0, but it might not be the last
- * one of this temporay dir page */
+ * one of this temporay dir page
+ */
if (!ent_size)
ent_size = lu_dirent_calc_size(
le16_to_cpu(next->lde_namelen),
memcpy(ent, next, ent_size);
/* Replace . with master FID and Replace .. with the parent FID
- * of master object */
+ * of master object
+ */
if (strncmp(ent->lde_name, ".",
le16_to_cpu(ent->lde_namelen)) == 0 &&
le16_to_cpu(ent->lde_namelen) == 1)
return rc;
}
-int lmv_read_page(struct obd_export *exp, struct md_op_data *op_data,
- struct md_callback *cb_op, __u64 offset,
- struct page **ppage)
+static int lmv_read_page(struct obd_export *exp, struct md_op_data *op_data,
+ struct md_readdir_info *mrinfo, __u64 offset,
+ struct page **ppage)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
ENTRY;
- if (unlikely(lmv_dir_foreign(op_data->op_mea1)))
+ if (unlikely(lmv_dir_foreign(op_data->op_lso1)))
RETURN(-ENODATA);
- if (unlikely(lmv_dir_striped(op_data->op_mea1))) {
- rc = lmv_striped_read_page(exp, op_data, cb_op, offset, ppage);
+ if (unlikely(lmv_dir_striped(op_data->op_lso1))) {
+ rc = lmv_striped_read_page(exp, op_data, mrinfo, offset, ppage);
RETURN(rc);
}
- tgt = lmv_find_target(lmv, &op_data->op_fid1);
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid1);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
- rc = md_read_page(tgt->ltd_exp, op_data, cb_op, offset, ppage);
+ rc = md_read_page(tgt->ltd_exp, op_data, mrinfo, offset, ppage);
RETURN(rc);
}
op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid());
op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid());
- op_data->op_cap = cfs_curproc_cap_pack();
+ op_data->op_cap = current_cap();
retry:
parent_tgt = lmv_locate_tgt(lmv, op_data);
RETURN(PTR_ERR(parent_tgt));
if (likely(!fid_is_zero(&op_data->op_fid2))) {
- tgt = lmv_find_target(lmv, &op_data->op_fid2);
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid2);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
} else {
ptlrpc_req_finished(*request);
*request = NULL;
- tgt = lmv_find_target(lmv, &op_data->op_fid2);
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid2);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
{
ENTRY;
libcfs_kkuc_group_rem(&obd->obd_uuid, 0, KUC_GRP_HSM);
- fld_client_debugfs_fini(&obd->u.lmv.lmv_fld);
- lprocfs_obd_cleanup(obd);
- lprocfs_free_md_stats(obd);
RETURN(0);
}
static int lmv_get_info(const struct lu_env *env, struct obd_export *exp,
__u32 keylen, void *key, __u32 *vallen, void *val)
{
- struct obd_device *obd;
- struct lmv_obd *lmv;
- int rc = 0;
- ENTRY;
+ struct obd_device *obd;
+ struct lmv_obd *lmv;
+ struct lu_tgt_desc *tgt;
+ int rc = 0;
+
+ ENTRY;
- obd = class_exp2obd(exp);
- if (obd == NULL) {
+ obd = class_exp2obd(exp);
+ if (obd == NULL) {
CDEBUG(D_IOCTL, "Invalid client cookie %#llx\n",
- exp->exp_handle.h_cookie);
- RETURN(-EINVAL);
- }
-
- lmv = &obd->u.lmv;
- if (keylen >= strlen("remote_flag") && !strcmp(key, "remote_flag")) {
- int i;
-
- LASSERT(*vallen == sizeof(__u32));
- for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- struct lmv_tgt_desc *tgt = lmv->tgts[i];
- /*
- * All tgts should be connected when this gets called.
- */
- if (tgt == NULL || tgt->ltd_exp == NULL)
- continue;
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ lmv = &obd->u.lmv;
+ if (keylen >= strlen("remote_flag") && !strcmp(key, "remote_flag")) {
+ LASSERT(*vallen == sizeof(__u32));
+ lmv_foreach_connected_tgt(lmv, tgt) {
if (!obd_get_info(env, tgt->ltd_exp, keylen, key,
vallen, val))
RETURN(0);
* Forwarding this request to first MDS, it should know LOV
* desc.
*/
- rc = obd_get_info(env, lmv->tgts[0]->ltd_exp, keylen, key,
- vallen, val);
+ tgt = lmv_tgt(lmv, 0);
+ if (!tgt)
+ RETURN(-ENODEV);
+
+ rc = obd_get_info(env, tgt->ltd_exp, keylen, key, vallen, val);
if (!rc && KEY_IS(KEY_CONN_DATA))
exp->exp_connect_data = *(struct obd_connect_data *)val;
- RETURN(rc);
- } else if (KEY_IS(KEY_TGT_COUNT)) {
- *((int *)val) = lmv->desc.ld_tgt_count;
- RETURN(0);
- }
+ RETURN(rc);
+ } else if (KEY_IS(KEY_TGT_COUNT)) {
+ *((int *)val) = lmv->lmv_mdt_descs.ltd_tgts_size;
+ RETURN(0);
+ }
- CDEBUG(D_IOCTL, "Invalid key\n");
- RETURN(-EINVAL);
+ CDEBUG(D_IOCTL, "Invalid key\n");
+ RETURN(-EINVAL);
}
static int lmv_rmfid(struct obd_export *exp, struct fid_array *fa,
int *__rcs, struct ptlrpc_request_set *_set)
{
- struct obd_device *obddev = class_exp2obd(exp);
+ struct obd_device *obd = class_exp2obd(exp);
struct ptlrpc_request_set *set = _set;
- struct lmv_obd *lmv = &obddev->u.lmv;
- int tgt_count = lmv->desc.ld_tgt_count;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ int tgt_count = lmv->lmv_mdt_count;
+ struct lu_tgt_desc *tgt;
struct fid_array *fat, **fas = NULL;
int i, rc, **rcs = NULL;
}
/* split FIDs by targets */
- OBD_ALLOC(fas, sizeof(fas) * tgt_count);
+ OBD_ALLOC_PTR_ARRAY(fas, tgt_count);
if (fas == NULL)
GOTO(out, rc = -ENOMEM);
- OBD_ALLOC(rcs, sizeof(int *) * tgt_count);
+ OBD_ALLOC_PTR_ARRAY(rcs, tgt_count);
if (rcs == NULL)
GOTO(out_fas, rc = -ENOMEM);
if (!fas[idx])
GOTO(out, rc = -ENOMEM);
if (!rcs[idx])
- OBD_ALLOC(rcs[idx], sizeof(int) * fa->fa_nr);
+ OBD_ALLOC_PTR_ARRAY(rcs[idx], fa->fa_nr);
if (!rcs[idx])
GOTO(out, rc = -ENOMEM);
fat->fa_fids[fat->fa_nr++] = fa->fa_fids[i];
}
- for (i = 0; i < tgt_count; i++) {
- fat = fas[i];
+ lmv_foreach_connected_tgt(lmv, tgt) {
+ fat = fas[tgt->ltd_index];
if (!fat || fat->fa_nr == 0)
continue;
- rc = md_rmfid(lmv->tgts[i]->ltd_exp, fat, rcs[i], set);
+ rc = md_rmfid(tgt->ltd_exp, fat, rcs[tgt->ltd_index], set);
}
rc = ptlrpc_set_wait(NULL, set);
if (rc == 0) {
int j = 0;
+
for (i = 0; i < tgt_count; i++) {
fat = fas[i];
if (!fat || fat->fa_nr == 0)
OBD_FREE(fas[i], offsetof(struct fid_array,
fa_fids[fa->fa_nr]));
if (rcs && rcs[i])
- OBD_FREE(rcs[i], sizeof(int) * fa->fa_nr);
+ OBD_FREE_PTR_ARRAY(rcs[i], fa->fa_nr);
}
if (rcs)
- OBD_FREE(rcs, sizeof(int *) * tgt_count);
+ OBD_FREE_PTR_ARRAY(rcs, tgt_count);
out_fas:
if (fas)
- OBD_FREE(fas, sizeof(fas) * tgt_count);
+ OBD_FREE_PTR_ARRAY(fas, tgt_count);
RETURN(rc);
}
* \retval 0 on success
* \retval negative negated errno on failure
*/
-int lmv_set_info_async(const struct lu_env *env, struct obd_export *exp,
- __u32 keylen, void *key, __u32 vallen, void *val,
- struct ptlrpc_request_set *set)
+static int lmv_set_info_async(const struct lu_env *env, struct obd_export *exp,
+ __u32 keylen, void *key, __u32 vallen, void *val,
+ struct ptlrpc_request_set *set)
{
- struct lmv_tgt_desc *tgt = NULL;
- struct obd_device *obd;
- struct lmv_obd *lmv;
+ struct lmv_tgt_desc *tgt;
+ struct obd_device *obd;
+ struct lmv_obd *lmv;
int rc = 0;
+
ENTRY;
obd = class_exp2obd(exp);
if (KEY_IS(KEY_READ_ONLY) || KEY_IS(KEY_FLUSH_CTX) ||
KEY_IS(KEY_DEFAULT_EASIZE)) {
- int i, err = 0;
-
- for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- tgt = lmv->tgts[i];
-
- if (tgt == NULL || tgt->ltd_exp == NULL)
- continue;
+ int err = 0;
+ lmv_foreach_connected_tgt(lmv, tgt) {
err = obd_set_info_async(env, tgt->ltd_exp,
keylen, key, vallen, val, set);
if (err && rc == 0)
int cplen;
int i;
int rc = 0;
+
ENTRY;
lsm->lsm_md_magic = le32_to_cpu(lmm1->lmv_magic);
lsm->lsm_md_stripe_count = le32_to_cpu(lmm1->lmv_stripe_count);
lsm->lsm_md_master_mdt_index = le32_to_cpu(lmm1->lmv_master_mdt_index);
- if (OBD_FAIL_CHECK(OBD_FAIL_UNKNOWN_LMV_STRIPE))
- lsm->lsm_md_hash_type = LMV_HASH_TYPE_UNKNOWN;
+ if (CFS_FAIL_CHECK(OBD_FAIL_LMV_UNKNOWN_STRIPE))
+ lsm->lsm_md_hash_type = cfs_fail_val ?: LMV_HASH_TYPE_UNKNOWN;
else
lsm->lsm_md_hash_type = le32_to_cpu(lmm1->lmv_hash_type);
lsm->lsm_md_layout_version = le32_to_cpu(lmm1->lmv_layout_version);
lsm->lsm_md_migrate_offset = le32_to_cpu(lmm1->lmv_migrate_offset);
lsm->lsm_md_migrate_hash = le32_to_cpu(lmm1->lmv_migrate_hash);
- cplen = strlcpy(lsm->lsm_md_pool_name, lmm1->lmv_pool_name,
+ cplen = strscpy(lsm->lsm_md_pool_name, lmm1->lmv_pool_name,
sizeof(lsm->lsm_md_pool_name));
- if (cplen >= sizeof(lsm->lsm_md_pool_name))
- RETURN(-E2BIG);
+ if (cplen < 0)
+ RETURN(cplen);
- CDEBUG(D_INFO, "unpack lsm count %d, master %d hash_type %#x "
- "layout_version %d\n", lsm->lsm_md_stripe_count,
- lsm->lsm_md_master_mdt_index, lsm->lsm_md_hash_type,
+ CDEBUG(D_INFO, "unpack lsm count %d/%d, master %d hash_type %#x/%#x layout_version %d\n",
+ lsm->lsm_md_stripe_count,
+ lsm->lsm_md_migrate_offset, lsm->lsm_md_master_mdt_index,
+ lsm->lsm_md_hash_type, lsm->lsm_md_migrate_hash,
lsm->lsm_md_layout_version);
stripe_count = le32_to_cpu(lmm1->lmv_stripe_count);
* set default value -1, so lmv_locate_tgt() knows this stripe
* target is not initialized.
*/
- lsm->lsm_md_oinfo[i].lmo_mds = (u32)-1;
+ lsm->lsm_md_oinfo[i].lmo_mds = LMV_OFFSET_DEFAULT;
if (!fid_is_sane(&lsm->lsm_md_oinfo[i].lmo_fid))
continue;
lsm->lsm_md_stripe_count = le32_to_cpu(lmu->lum_stripe_count);
lsm->lsm_md_master_mdt_index = le32_to_cpu(lmu->lum_stripe_offset);
lsm->lsm_md_hash_type = le32_to_cpu(lmu->lum_hash_type);
+ lsm->lsm_md_max_inherit = lmu->lum_max_inherit;
+ lsm->lsm_md_max_inherit_rr = lmu->lum_max_inherit_rr;
+ lsm->lsm_md_pool_name[LOV_MAXPOOLNAME] = 0;
return 0;
}
-static int lmv_unpackmd(struct obd_export *exp, struct lmv_stripe_md **lsmp,
- const union lmv_mds_md *lmm, size_t lmm_size)
+struct lmv_stripe_object *lmv_stripe_object_alloc(__u32 magic,
+ const union lmv_mds_md *lmm,
+ size_t lmm_size)
{
- struct lmv_stripe_md *lsm;
- int lsm_size;
- int rc;
- bool allocated = false;
- ENTRY;
+ struct lmv_stripe_object *lsm_obj;
+ int size;
- LASSERT(lsmp != NULL);
+ if (magic == LMV_MAGIC_FOREIGN) {
+ struct lmv_foreign_md *lfm;
- lsm = *lsmp;
- /* Free memmd */
- if (lsm != NULL && lmm == NULL) {
- int i;
- struct lmv_foreign_md *lfm = (struct lmv_foreign_md *)lsm;
+ size = offsetof(typeof(*lfm), lfm_value[0]);
+ if (lmm_size < size)
+ RETURN(ERR_PTR(-EPROTO));
- if (lfm->lfm_magic == LMV_MAGIC_FOREIGN) {
- size_t lfm_size;
+ size += le32_to_cpu(lmm->lmv_foreign_md.lfm_length);
+ if (lmm_size < size)
+ RETURN(ERR_PTR(-EPROTO));
- lfm_size = lfm->lfm_length + offsetof(typeof(*lfm),
- lfm_value[0]);
- OBD_FREE_LARGE(lfm, lfm_size);
- RETURN(0);
- }
+ OBD_ALLOC_LARGE(lsm_obj, lmm_size +
+ offsetof(typeof(*lsm_obj), lso_lfm));
+ } else {
+ if (magic == LMV_MAGIC_V1) {
+ int count;
- if (lmv_dir_striped(lsm)) {
- for (i = 0; i < lsm->lsm_md_stripe_count; i++) {
- if (lsm->lsm_md_oinfo[i].lmo_root)
- iput(lsm->lsm_md_oinfo[i].lmo_root);
- }
- lsm_size = lmv_stripe_md_size(lsm->lsm_md_stripe_count);
+ size = offsetof(struct lmv_mds_md_v1,
+ lmv_stripe_fids[0]);
+ if (lmm_size < size)
+ RETURN(ERR_PTR(-EPROTO));
+
+ count = lmv_mds_md_stripe_count_get(lmm);
+ size += count * sizeof(struct lu_fid);
+ if (lmm_size < size)
+ RETURN(ERR_PTR(-EPROTO));
+
+ size = lmv_stripe_md_size(count);
} else {
- lsm_size = lmv_stripe_md_size(0);
+ if (lmm && lmm_size < sizeof(struct lmv_user_md))
+ RETURN(ERR_PTR(-EPROTO));
+
+ /**
+ * Unpack default dirstripe(lmv_user_md) to
+ * lmv_stripe_md, stripecount should be 0 then.
+ */
+ size = lmv_stripe_md_size(0);
}
- OBD_FREE(lsm, lsm_size);
- *lsmp = NULL;
- RETURN(0);
+ size += offsetof(typeof(*lsm_obj), lso_lsm);
+ OBD_ALLOC(lsm_obj, size);
}
- /* foreign lmv case */
- if (le32_to_cpu(lmm->lmv_magic) == LMV_MAGIC_FOREIGN) {
- struct lmv_foreign_md *lfm = (struct lmv_foreign_md *)lsm;
-
- if (lfm == NULL) {
- OBD_ALLOC_LARGE(lfm, lmm_size);
- if (lfm == NULL)
- RETURN(-ENOMEM);
- *lsmp = (struct lmv_stripe_md *)lfm;
- }
- lfm->lfm_magic = le32_to_cpu(lmm->lmv_foreign_md.lfm_magic);
- lfm->lfm_length = le32_to_cpu(lmm->lmv_foreign_md.lfm_length);
- lfm->lfm_type = le32_to_cpu(lmm->lmv_foreign_md.lfm_type);
- lfm->lfm_flags = le32_to_cpu(lmm->lmv_foreign_md.lfm_flags);
- memcpy(&lfm->lfm_value, &lmm->lmv_foreign_md.lfm_value,
- lfm->lfm_length);
- RETURN(lmm_size);
+ if (lsm_obj) {
+ atomic_set(&lsm_obj->lso_refs, 1);
+ RETURN(lsm_obj);
}
- if (le32_to_cpu(lmm->lmv_magic) == LMV_MAGIC_STRIPE)
+ RETURN(ERR_PTR(-ENOMEM));
+}
+EXPORT_SYMBOL(lmv_stripe_object_alloc);
+
+static int lmv_stripe_object_create(struct obd_export *exp,
+ struct lmv_stripe_object **lsop,
+ const union lmv_mds_md *lmm,
+ size_t lmm_size)
+{
+ struct lmv_stripe_object *lsm_obj;
+ __u32 magic;
+ int rc;
+
+ ENTRY;
+
+ LASSERT(lsop != NULL && *lsop == NULL);
+
+ if (lmm_size == 0)
+ RETURN(-EPROTO);
+
+ magic = le32_to_cpu(lmm->lmv_magic);
+ if (magic == LMV_MAGIC_STRIPE)
RETURN(-EPERM);
- /* Unpack memmd */
- if (le32_to_cpu(lmm->lmv_magic) != LMV_MAGIC_V1 &&
- le32_to_cpu(lmm->lmv_magic) != LMV_USER_MAGIC) {
+ if (magic != LMV_MAGIC_V1 && magic != LMV_USER_MAGIC &&
+ magic != LMV_MAGIC_FOREIGN) {
CERROR("%s: invalid lmv magic %x: rc = %d\n",
- exp->exp_obd->obd_name, le32_to_cpu(lmm->lmv_magic),
- -EIO);
+ exp->exp_obd->obd_name, magic, -EIO);
RETURN(-EIO);
}
- if (le32_to_cpu(lmm->lmv_magic) == LMV_MAGIC_V1)
- lsm_size = lmv_stripe_md_size(lmv_mds_md_stripe_count_get(lmm));
- else
- /**
- * Unpack default dirstripe(lmv_user_md) to lmv_stripe_md,
- * stripecount should be 0 then.
- */
- lsm_size = lmv_stripe_md_size(0);
+ /* foreign lmv case */
+ if (magic == LMV_MAGIC_FOREIGN) {
+ struct lmv_foreign_md *lfm;
- if (lsm == NULL) {
- OBD_ALLOC(lsm, lsm_size);
- if (lsm == NULL)
- RETURN(-ENOMEM);
- allocated = true;
- *lsmp = lsm;
+ lsm_obj = lmv_stripe_object_alloc(magic, lmm, lmm_size);
+ if (IS_ERR(lsm_obj))
+ RETURN(PTR_ERR(lsm_obj));
+
+ *lsop = lsm_obj;
+ lfm = &lsm_obj->lso_lfm;
+ lfm->lfm_magic = magic;
+ lfm->lfm_length = le32_to_cpu(lmm->lmv_foreign_md.lfm_length);
+ lfm->lfm_type = le32_to_cpu(lmm->lmv_foreign_md.lfm_type);
+ lfm->lfm_flags = le32_to_cpu(lmm->lmv_foreign_md.lfm_flags);
+ memcpy(&lfm->lfm_value, &lmm->lmv_foreign_md.lfm_value,
+ lfm->lfm_length);
+ RETURN(0);
}
- switch (le32_to_cpu(lmm->lmv_magic)) {
+ /* Unpack memmd */
+ lsm_obj = lmv_stripe_object_alloc(magic, lmm, lmm_size);
+ if (IS_ERR(lsm_obj))
+ RETURN(PTR_ERR(lsm_obj));
+
+ switch (magic) {
case LMV_MAGIC_V1:
- rc = lmv_unpack_md_v1(exp, lsm, &lmm->lmv_md_v1);
+ rc = lmv_unpack_md_v1(exp, &lsm_obj->lso_lsm, &lmm->lmv_md_v1);
break;
case LMV_USER_MAGIC:
- rc = lmv_unpack_user_md(exp, lsm, &lmm->lmv_user_md);
+ rc = lmv_unpack_user_md(exp, &lsm_obj->lso_lsm,
+ &lmm->lmv_user_md);
break;
default:
CERROR("%s: unrecognized magic %x\n", exp->exp_obd->obd_name,
- le32_to_cpu(lmm->lmv_magic));
+ magic);
rc = -EINVAL;
break;
}
- if (rc != 0 && allocated) {
- OBD_FREE(lsm, lsm_size);
- *lsmp = NULL;
- lsm_size = rc;
- }
- RETURN(lsm_size);
+ if (rc != 0)
+ lmv_stripe_object_put(&lsm_obj);
+
+ *lsop = lsm_obj;
+ RETURN(rc);
+}
+
+struct lmv_stripe_object *
+lmv_stripe_object_get(struct lmv_stripe_object *lsm_obj)
+{
+ if (lsm_obj == NULL)
+ return NULL;
+
+ atomic_inc(&lsm_obj->lso_refs);
+ CDEBUG(D_INODE, "get %p %u\n", lsm_obj,
+ atomic_read(&lsm_obj->lso_refs));
+ return lsm_obj;
}
+EXPORT_SYMBOL(lmv_stripe_object_get);
-void lmv_free_memmd(struct lmv_stripe_md *lsm)
+void lmv_stripe_object_put(struct lmv_stripe_object **lsop)
{
- lmv_unpackmd(NULL, &lsm, NULL, 0);
+ struct lmv_stripe_object *lsm_obj;
+ size_t size;
+ int i;
+
+ LASSERT(lsop != NULL);
+
+ lsm_obj = *lsop;
+ if (lsm_obj == NULL)
+ return;
+
+ *lsop = NULL;
+ CDEBUG(D_INODE, "put %p %u\n", lsm_obj,
+ atomic_read(&lsm_obj->lso_refs) - 1);
+
+ if (!atomic_dec_and_test(&lsm_obj->lso_refs))
+ return;
+
+ if (lmv_dir_foreign(lsm_obj)) {
+ size = lsm_obj->lso_lfm.lfm_length +
+ offsetof(typeof(lsm_obj->lso_lfm), lfm_value[0]) +
+ offsetof(typeof(*lsm_obj), lso_lsm);
+ OBD_FREE_LARGE(lsm_obj, size);
+ return;
+ }
+
+ if (lmv_dir_striped(lsm_obj)) {
+ struct lmv_stripe_md *lsm = &lsm_obj->lso_lsm;
+
+ for (i = 0; i < lsm->lsm_md_stripe_count; i++)
+ iput(lsm->lsm_md_oinfo[i].lmo_root);
+ size = lmv_stripe_md_size(lsm->lsm_md_stripe_count);
+ } else {
+ size = lmv_stripe_md_size(0);
+ }
+ OBD_FREE(lsm_obj, size + offsetof(typeof(*lsm_obj), lso_lsm));
}
-EXPORT_SYMBOL(lmv_free_memmd);
+EXPORT_SYMBOL(lmv_stripe_object_put);
static int lmv_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
union ldlm_policy_data *policy,
void *opaque)
{
struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
+ struct lu_tgt_desc *tgt;
+ int err;
int rc = 0;
- __u32 i;
+
ENTRY;
LASSERT(fid != NULL);
- for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- struct lmv_tgt_desc *tgt = lmv->tgts[i];
- int err;
-
- if (tgt == NULL || tgt->ltd_exp == NULL || !tgt->ltd_active)
+ lmv_foreach_connected_tgt(lmv, tgt) {
+ if (!tgt->ltd_active)
continue;
err = md_cancel_unused(tgt->ltd_exp, fid, policy, mode, flags,
const struct lustre_handle *lockh,
void *data, __u64 *bits)
{
- struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
- struct lmv_tgt_desc *tgt = lmv->tgts[0];
- int rc;
+ struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
+ struct lmv_tgt_desc *tgt = lmv_tgt(lmv, 0);
+ int rc;
+
ENTRY;
if (tgt == NULL || tgt->ltd_exp == NULL)
RETURN(rc);
}
-enum ldlm_mode lmv_lock_match(struct obd_export *exp, __u64 flags,
- const struct lu_fid *fid, enum ldlm_type type,
- union ldlm_policy_data *policy,
- enum ldlm_mode mode, struct lustre_handle *lockh)
+static enum ldlm_mode
+lmv_lock_match(struct obd_export *exp, __u64 flags,
+ const struct lu_fid *fid, enum ldlm_type type,
+ union ldlm_policy_data *policy,
+ enum ldlm_mode mode, struct lustre_handle *lockh)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- enum ldlm_mode rc;
- int tgt;
- int i;
- ENTRY;
-
- CDEBUG(D_INODE, "Lock match for "DFID"\n", PFID(fid));
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lu_tgt_desc *tgt;
+ __u64 bits = policy->l_inodebits.bits;
+ enum ldlm_mode rc = LCK_MINMODE;
+ int index;
+ int i;
- /*
- * With DNE every object can have two locks in different namespaces:
+ /* only one bit is set */
+ LASSERT(bits && !(bits & (bits - 1)));
+ /* With DNE every object can have two locks in different namespaces:
* lookup lock in space of MDT storing direntry and update/open lock in
* space of MDT storing inode. Try the MDT that the FID maps to first,
* since this can be easily found, and only try others if that fails.
*/
- for (i = 0, tgt = lmv_find_target_index(lmv, fid);
- i < lmv->desc.ld_tgt_count;
- i++, tgt = (tgt + 1) % lmv->desc.ld_tgt_count) {
- if (tgt < 0) {
- CDEBUG(D_HA, "%s: "DFID" is inaccessible: rc = %d\n",
- obd->obd_name, PFID(fid), tgt);
- tgt = 0;
+ if (bits == MDS_INODELOCK_LOOKUP) {
+ for (i = 0, index = lmv_fid2tgt_index(lmv, fid);
+ i < lmv->lmv_mdt_descs.ltd_tgts_size; i++,
+ index = (index + 1) % lmv->lmv_mdt_descs.ltd_tgts_size) {
+ if (index < 0) {
+ CDEBUG(D_HA,
+ "%s: "DFID" is inaccessible: rc = %d\n",
+ obd->obd_name, PFID(fid), index);
+ index = 0;
+ }
+ tgt = lmv_tgt(lmv, index);
+ if (!tgt || !tgt->ltd_exp || !tgt->ltd_active)
+ continue;
+ rc = md_lock_match(tgt->ltd_exp, flags, fid, type,
+ policy, mode, lockh);
+ if (rc)
+ break;
}
-
- if (lmv->tgts[tgt] == NULL ||
- lmv->tgts[tgt]->ltd_exp == NULL ||
- lmv->tgts[tgt]->ltd_active == 0)
- continue;
-
- rc = md_lock_match(lmv->tgts[tgt]->ltd_exp, flags, fid,
- type, policy, mode, lockh);
- if (rc)
- RETURN(rc);
+ } else {
+ tgt = lmv_fid2tgt(lmv, fid);
+ if (!IS_ERR(tgt) && tgt->ltd_exp && tgt->ltd_active)
+ rc = md_lock_match(tgt->ltd_exp, flags, fid, type,
+ policy, mode, lockh);
}
- RETURN(0);
+ CDEBUG(D_INODE, "Lock match for "DFID": %d\n", PFID(fid), rc);
+
+ return rc;
}
-int lmv_get_lustre_md(struct obd_export *exp, struct ptlrpc_request *req,
- struct obd_export *dt_exp, struct obd_export *md_exp,
- struct lustre_md *md)
+static int
+lmv_get_lustre_md(struct obd_export *exp, struct req_capsule *pill,
+ 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_tgt_desc *tgt = lmv->tgts[0];
+ struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
+ struct lmv_tgt_desc *tgt = lmv_tgt(lmv, 0);
- if (tgt == NULL || tgt->ltd_exp == NULL)
- RETURN(-EINVAL);
+ if (!tgt || !tgt->ltd_exp)
+ return -EINVAL;
- return md_get_lustre_md(lmv->tgts[0]->ltd_exp, req, dt_exp, md_exp, md);
+ return md_get_lustre_md(tgt->ltd_exp, pill, dt_exp, md_exp, md);
}
-int lmv_free_lustre_md(struct obd_export *exp, struct lustre_md *md)
+static int lmv_put_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 lmv_tgt_desc *tgt = lmv->tgts[0];
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt = lmv_tgt(lmv, 0);
+
ENTRY;
- if (md->default_lmv) {
- lmv_free_memmd(md->default_lmv);
- md->default_lmv = NULL;
- }
- if (md->lmv != NULL) {
- lmv_free_memmd(md->lmv);
- md->lmv = NULL;
- }
- if (tgt == NULL || tgt->ltd_exp == NULL)
+ lmv_stripe_object_put(&md->def_lsm_obj);
+ lmv_stripe_object_put(&md->lsm_obj);
+
+ if (!tgt || !tgt->ltd_exp)
RETURN(-EINVAL);
- RETURN(md_free_lustre_md(lmv->tgts[0]->ltd_exp, md));
+ RETURN(0);
}
-int lmv_set_open_replay_data(struct obd_export *exp,
- struct obd_client_handle *och,
- struct lookup_intent *it)
+static int lmv_set_open_replay_data(struct obd_export *exp,
+ struct obd_client_handle *och,
+ struct lookup_intent *it)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_tgt_desc *tgt;
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
+
ENTRY;
- tgt = lmv_find_target(lmv, &och->och_fid);
+ tgt = lmv_fid2tgt(lmv, &och->och_fid);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
RETURN(md_set_open_replay_data(tgt->ltd_exp, och, it));
}
-int lmv_clear_open_replay_data(struct obd_export *exp,
- struct obd_client_handle *och)
+static int lmv_clear_open_replay_data(struct obd_export *exp,
+ struct obd_client_handle *och)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_tgt_desc *tgt;
- ENTRY;
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
- tgt = lmv_find_target(lmv, &och->och_fid);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ ENTRY;
+
+ tgt = lmv_fid2tgt(lmv, &och->och_fid);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
- RETURN(md_clear_open_replay_data(tgt->ltd_exp, och));
+ RETURN(md_clear_open_replay_data(tgt->ltd_exp, och));
}
-int lmv_intent_getattr_async(struct obd_export *exp,
- struct md_enqueue_info *minfo)
+static int lmv_intent_getattr_async(struct obd_export *exp,
+ struct md_op_item *item)
{
- struct md_op_data *op_data = &minfo->mi_data;
+ struct md_op_data *op_data = &item->mop_data;
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
struct lmv_tgt_desc *ptgt;
ENTRY;
- if (!fid_is_sane(&op_data->op_fid2))
+ if (!(fid_is_sane(&op_data->op_fid2) ||
+ fid_is_zero(&op_data->op_fid2)))
RETURN(-EINVAL);
ptgt = lmv_locate_tgt(lmv, op_data);
if (IS_ERR(ptgt))
RETURN(PTR_ERR(ptgt));
- ctgt = lmv_find_target(lmv, &op_data->op_fid2);
- if (IS_ERR(ctgt))
- RETURN(PTR_ERR(ctgt));
-
/*
- * remote object needs two RPCs to lookup and getattr, considering the
- * complexity don't support statahead for now.
+ * Zeroed FID @op_fid2 means that the intent getattr() comes from
+ * statahead by regularized file names. Currently only do statahead
+ * for the children files located same as the parent directory.
*/
- if (ctgt != ptgt)
- RETURN(-EREMOTE);
+ if (!fid_is_zero(&op_data->op_fid2)) {
+ ctgt = lmv_fid2tgt(lmv, &op_data->op_fid2);
+ if (IS_ERR(ctgt))
+ RETURN(PTR_ERR(ctgt));
+
+ /*
+ * remote object needs two RPCs to lookup and getattr,
+ * considering the complexity don't support statahead for now.
+ */
+ if (ctgt != ptgt)
+ RETURN(-EREMOTE);
+ }
- rc = md_intent_getattr_async(ptgt->ltd_exp, minfo);
+ rc = md_intent_getattr_async(ptgt->ltd_exp, item);
RETURN(rc);
}
-int lmv_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
- struct lu_fid *fid, __u64 *bits)
+static int lmv_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
+ struct lu_fid *fid, __u64 *bits)
{
- 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;
- tgt = lmv_find_target(lmv, fid);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ tgt = lmv_fid2tgt(lmv, fid);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
- rc = md_revalidate_lock(tgt->ltd_exp, it, fid, bits);
- RETURN(rc);
+ rc = md_revalidate_lock(tgt->ltd_exp, it, fid, bits);
+ RETURN(rc);
}
-int lmv_get_fid_from_lsm(struct obd_export *exp,
- const struct lmv_stripe_md *lsm,
- const char *name, int namelen, struct lu_fid *fid)
+static int lmv_get_fid_from_lsm(struct obd_export *exp,
+ const struct lmv_stripe_object *lso,
+ const char *name, int namelen,
+ struct lu_fid *fid)
{
const struct lmv_oinfo *oinfo;
- LASSERT(lmv_dir_striped(lsm));
-
- oinfo = lsm_name_to_stripe_info(lsm, name, namelen, false);
+ LASSERT(lmv_dir_striped(lso));
+ oinfo = lsm_name_to_stripe_info(lso, name, namelen, false);
if (IS_ERR(oinfo))
return PTR_ERR(oinfo);
* process with other slave MDTs. The only exception is Q_GETOQUOTA for which
* we directly fetch data from the slave MDTs.
*/
-int lmv_quotactl(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 = lmv->tgts[0];
- int rc = 0;
- __u32 i;
- __u64 curspace, curinodes;
+static int lmv_quotactl(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 = lmv_tgt(lmv, 0);
+ __u64 curspace, curinodes;
+ int rc = 0;
+
ENTRY;
- if (tgt == NULL ||
- tgt->ltd_exp == NULL ||
- !tgt->ltd_active ||
- lmv->desc.ld_tgt_count == 0) {
+ if (!tgt || !tgt->ltd_exp || !tgt->ltd_active) {
CERROR("master lmv inactive\n");
RETURN(-EIO);
}
- if (oqctl->qc_cmd != Q_GETOQUOTA) {
- rc = obd_quotactl(tgt->ltd_exp, oqctl);
- RETURN(rc);
- }
+ if (oqctl->qc_cmd == LUSTRE_Q_ITERQUOTA ||
+ oqctl->qc_cmd == LUSTRE_Q_ITEROQUOTA) {
+ struct list_head *lst = (struct list_head *)oqctl->qc_iter_list;
+ int err;
+
+ if (oqctl->qc_cmd == LUSTRE_Q_ITERQUOTA)
+ RETURN(obd_quota_iter(tgt->ltd_exp, oqctl, lst));
+
+ lmv_foreach_connected_tgt(lmv, tgt) {
+ if (!tgt->ltd_active)
+ continue;
+
+ err = obd_quota_iter(tgt->ltd_exp, oqctl, lst);
+ if (err) {
+ CERROR("%s: getquota failed mdt %d: rc = %d\n",
+ obd->obd_name, tgt->ltd_index, err);
+ if (!rc)
+ rc = err;
+ }
+ }
+
+ RETURN(rc);
+ }
- curspace = curinodes = 0;
- for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
+ if (oqctl->qc_cmd != Q_GETOQUOTA) {
+ rc = obd_quotactl(tgt->ltd_exp, oqctl);
+ RETURN(rc);
+ }
+
+ curspace = curinodes = 0;
+ lmv_foreach_connected_tgt(lmv, tgt) {
int err;
- tgt = lmv->tgts[i];
- if (tgt == NULL || tgt->ltd_exp == NULL || !tgt->ltd_active)
+ if (!tgt->ltd_active)
continue;
- err = obd_quotactl(tgt->ltd_exp, oqctl);
- if (err) {
- CERROR("getquota on mdt %d failed. %d\n", i, err);
- if (!rc)
- rc = err;
- } else {
- curspace += oqctl->qc_dqblk.dqb_curspace;
- curinodes += oqctl->qc_dqblk.dqb_curinodes;
- }
- }
- oqctl->qc_dqblk.dqb_curspace = curspace;
- oqctl->qc_dqblk.dqb_curinodes = curinodes;
+ err = obd_quotactl(tgt->ltd_exp, oqctl);
+ if (err) {
+ CERROR("getquota on mdt %d failed. %d\n",
+ tgt->ltd_index, err);
+ if (!rc)
+ rc = err;
+ } else {
+ curspace += oqctl->qc_dqblk.dqb_curspace;
+ curinodes += oqctl->qc_dqblk.dqb_curinodes;
+ }
+ }
+ oqctl->qc_dqblk.dqb_curspace = curspace;
+ oqctl->qc_dqblk.dqb_curinodes = curinodes;
- RETURN(rc);
+ RETURN(rc);
}
static int lmv_merge_attr(struct obd_export *exp,
- const struct lmv_stripe_md *lsm,
+ const struct lmv_stripe_object *lso,
struct cl_attr *attr,
ldlm_blocking_callback cb_blocking)
{
+ const struct lmv_stripe_md *lsm = &lso->lso_lsm;
int rc;
int i;
- if (!lmv_dir_striped(lsm))
+ if (!lmv_dir_striped(lso))
return 0;
rc = lmv_revalidate_slaves(exp, lsm, cb_blocking, 0);
"" DFID " size %llu, blocks %llu nlink %u, atime %lld ctime %lld, mtime %lld.\n",
PFID(&lsm->lsm_md_oinfo[i].lmo_fid),
i_size_read(inode), (unsigned long long)inode->i_blocks,
- inode->i_nlink, (s64)inode->i_atime.tv_sec,
- (s64)inode->i_ctime.tv_sec, (s64)inode->i_mtime.tv_sec);
+ inode->i_nlink, (s64)inode_get_atime_sec(inode),
+ (s64)inode_get_ctime_sec(inode),
+ (s64)inode_get_mtime_sec(inode));
/* for slave stripe, it needs to subtract nlink for . and .. */
if (i != 0)
attr->cat_size += i_size_read(inode);
attr->cat_blocks += inode->i_blocks;
- if (attr->cat_atime < inode->i_atime.tv_sec)
- attr->cat_atime = inode->i_atime.tv_sec;
+ if (attr->cat_atime < inode_get_atime_sec(inode))
+ attr->cat_atime = inode_get_atime_sec(inode);
- if (attr->cat_ctime < inode->i_ctime.tv_sec)
- attr->cat_ctime = inode->i_ctime.tv_sec;
+ if (attr->cat_ctime < inode_get_ctime_sec(inode))
+ attr->cat_ctime = inode_get_ctime_sec(inode);
- if (attr->cat_mtime < inode->i_mtime.tv_sec)
- attr->cat_mtime = inode->i_mtime.tv_sec;
+ if (attr->cat_mtime < inode_get_mtime_sec(inode))
+ attr->cat_mtime = inode_get_mtime_sec(inode);
}
return 0;
}
-struct obd_ops lmv_obd_ops = {
- .o_owner = THIS_MODULE,
- .o_setup = lmv_setup,
- .o_cleanup = lmv_cleanup,
- .o_precleanup = lmv_precleanup,
- .o_process_config = lmv_process_config,
- .o_connect = lmv_connect,
- .o_disconnect = lmv_disconnect,
- .o_statfs = lmv_statfs,
- .o_get_info = lmv_get_info,
- .o_set_info_async = lmv_set_info_async,
- .o_notify = lmv_notify,
- .o_get_uuid = lmv_get_uuid,
+static struct lu_batch *lmv_batch_create(struct obd_export *exp,
+ enum lu_batch_flags flags,
+ __u32 max_count)
+{
+ struct lu_batch *bh;
+ struct lmv_batch *lbh;
+
+ ENTRY;
+ OBD_ALLOC_PTR(lbh);
+ if (!lbh)
+ RETURN(ERR_PTR(-ENOMEM));
+
+ bh = &lbh->lbh_super;
+ bh->lbt_flags = flags;
+ bh->lbt_max_count = max_count;
+
+ if (flags & BATCH_FL_RQSET) {
+ bh->lbt_rqset = ptlrpc_prep_set();
+ if (bh->lbt_rqset == NULL) {
+ OBD_FREE_PTR(lbh);
+ RETURN(ERR_PTR(-ENOMEM));
+ }
+ }
+
+ INIT_LIST_HEAD(&lbh->lbh_sub_batch_list);
+ RETURN(bh);
+}
+
+static int lmv_batch_stop(struct obd_export *exp, struct lu_batch *bh)
+{
+ struct lmv_batch *lbh;
+ struct lmvsub_batch *sub;
+ struct lmvsub_batch *tmp;
+ int rc = 0;
+
+ ENTRY;
+
+ lbh = container_of(bh, struct lmv_batch, lbh_super);
+ list_for_each_entry_safe(sub, tmp, &lbh->lbh_sub_batch_list,
+ sbh_sub_item) {
+ list_del(&sub->sbh_sub_item);
+ rc = md_batch_stop(sub->sbh_tgt->ltd_exp, sub->sbh_sub);
+ if (rc < 0) {
+ CERROR("%s: stop batch processing failed: rc = %d\n",
+ exp->exp_obd->obd_name, rc);
+ if (bh->lbt_result == 0)
+ bh->lbt_result = rc;
+ }
+ OBD_FREE_PTR(sub);
+ }
+
+ if (bh->lbt_flags & BATCH_FL_RQSET) {
+ rc = ptlrpc_set_wait(NULL, bh->lbt_rqset);
+ ptlrpc_set_destroy(bh->lbt_rqset);
+ }
+
+ OBD_FREE_PTR(lbh);
+ RETURN(rc);
+}
+
+static int lmv_batch_flush(struct obd_export *exp, struct lu_batch *bh,
+ bool wait)
+{
+ struct lmv_batch *lbh;
+ struct lmvsub_batch *sub;
+ int rc = 0;
+ int rc1;
+
+ ENTRY;
+
+ lbh = container_of(bh, struct lmv_batch, lbh_super);
+ list_for_each_entry(sub, &lbh->lbh_sub_batch_list, sbh_sub_item) {
+ rc1 = md_batch_flush(sub->sbh_tgt->ltd_exp, sub->sbh_sub, wait);
+ if (rc1 < 0) {
+ CERROR("%s: stop batch processing failed: rc = %d\n",
+ exp->exp_obd->obd_name, rc);
+ if (bh->lbt_result == 0)
+ bh->lbt_result = rc;
+
+ if (rc == 0)
+ rc = rc1;
+ }
+ }
+
+ if (wait && bh->lbt_flags & BATCH_FL_RQSET) {
+ rc1 = ptlrpc_set_wait(NULL, bh->lbt_rqset);
+ if (rc == 0)
+ rc = rc1;
+ }
+
+ RETURN(rc);
+}
+
+static inline struct lmv_tgt_desc *
+lmv_batch_locate_tgt(struct lmv_obd *lmv, struct md_op_item *item)
+{
+ struct md_op_data *op_data = &item->mop_data;
+ struct lmv_tgt_desc *tgt;
+
+ switch (item->mop_opc) {
+ case MD_OP_GETATTR: {
+ struct lmv_tgt_desc *ptgt;
+
+ if (!(fid_is_sane(&op_data->op_fid2) ||
+ fid_is_zero(&op_data->op_fid2)))
+ RETURN(ERR_PTR(-EINVAL));
+
+ ptgt = lmv_locate_tgt(lmv, op_data);
+ if (IS_ERR(ptgt))
+ RETURN(ptgt);
+
+ /*
+ * Zeroed @op_fid2 means that it is a statahead populating call
+ * in the file name pattern which is using file name format to
+ * prefetch the attributes. Thus it has no idea about the FID of
+ * the children file. The children file is considered to be
+ * located on the same storage target with the parent directory
+ * or the stripped directory.
+ */
+ if (fid_is_zero(&op_data->op_fid2)) {
+ tgt = ptgt;
+ break;
+ }
+
+ tgt = lmv_fid2tgt(lmv, &op_data->op_fid2);
+ if (IS_ERR(tgt))
+ RETURN(tgt);
+
+ /*
+ * Remote object needs two RPCs to lookup and getattr,
+ * considering the complexity don't support statahead for now.
+ */
+ if (tgt != ptgt)
+ RETURN(ERR_PTR(-EREMOTE));
+
+ break;
+ }
+ default:
+ tgt = ERR_PTR(-ENOTSUPP);
+ }
+
+ return tgt;
+}
+
+static struct lu_batch *lmv_batch_lookup_sub(struct lmv_batch *lbh,
+ struct lmv_tgt_desc *tgt)
+{
+ struct lmvsub_batch *sub;
+
+ list_for_each_entry(sub, &lbh->lbh_sub_batch_list, sbh_sub_item) {
+ if (sub->sbh_tgt == tgt)
+ return sub->sbh_sub;
+ }
+
+ return NULL;
+}
+
+static struct lu_batch *lmv_batch_get_sub(struct lmv_batch *lbh,
+ struct lmv_tgt_desc *tgt)
+{
+ struct lmvsub_batch *sbh;
+ struct lu_batch *child_bh;
+ struct lu_batch *bh;
+
+ ENTRY;
+
+ child_bh = lmv_batch_lookup_sub(lbh, tgt);
+ if (child_bh != NULL)
+ RETURN(child_bh);
+
+ OBD_ALLOC_PTR(sbh);
+ if (sbh == NULL)
+ RETURN(ERR_PTR(-ENOMEM));
+
+ INIT_LIST_HEAD(&sbh->sbh_sub_item);
+ sbh->sbh_tgt = tgt;
+
+ bh = &lbh->lbh_super;
+ child_bh = md_batch_create(tgt->ltd_exp, bh->lbt_flags,
+ bh->lbt_max_count);
+ if (IS_ERR(child_bh)) {
+ OBD_FREE_PTR(sbh);
+ RETURN(child_bh);
+ }
+
+ child_bh->lbt_rqset = bh->lbt_rqset;
+ sbh->sbh_sub = child_bh;
+ list_add(&sbh->sbh_sub_item, &lbh->lbh_sub_batch_list);
+ RETURN(child_bh);
+}
+
+static int lmv_batch_add(struct obd_export *exp, struct lu_batch *bh,
+ struct md_op_item *item)
+{
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
+ struct lmv_batch *lbh;
+ struct lu_batch *child_bh;
+ int rc;
+
+ ENTRY;
+
+ tgt = lmv_batch_locate_tgt(lmv, item);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
+
+ lbh = container_of(bh, struct lmv_batch, lbh_super);
+ child_bh = lmv_batch_get_sub(lbh, tgt);
+ if (IS_ERR(child_bh))
+ RETURN(PTR_ERR(child_bh));
+
+ rc = md_batch_add(tgt->ltd_exp, child_bh, item);
+ RETURN(rc);
+}
+
+static const struct obd_ops lmv_obd_ops = {
+ .o_owner = THIS_MODULE,
+ .o_setup = lmv_setup,
+ .o_cleanup = lmv_cleanup,
+ .o_precleanup = lmv_precleanup,
+ .o_process_config = lmv_process_config,
+ .o_connect = lmv_connect,
+ .o_disconnect = lmv_disconnect,
+ .o_statfs = lmv_statfs,
+ .o_get_info = lmv_get_info,
+ .o_set_info_async = lmv_set_info_async,
+ .o_notify = lmv_notify,
+ .o_get_uuid = lmv_get_uuid,
.o_fid_alloc = lmv_fid_alloc,
- .o_iocontrol = lmv_iocontrol,
- .o_quotactl = lmv_quotactl
+ .o_iocontrol = lmv_iocontrol,
+ .o_quotactl = lmv_quotactl
};
-struct md_ops lmv_md_ops = {
+static const struct md_ops lmv_md_ops = {
.m_get_root = lmv_get_root,
- .m_null_inode = lmv_null_inode,
- .m_close = lmv_close,
- .m_create = lmv_create,
- .m_enqueue = lmv_enqueue,
- .m_getattr = lmv_getattr,
- .m_getxattr = lmv_getxattr,
- .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_setxattr = lmv_setxattr,
+ .m_null_inode = lmv_null_inode,
+ .m_close = lmv_close,
+ .m_create = lmv_create,
+ .m_enqueue = lmv_enqueue,
+ .m_getattr = lmv_getattr,
+ .m_getxattr = lmv_getxattr,
+ .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_setxattr = lmv_setxattr,
.m_fsync = lmv_fsync,
.m_file_resync = lmv_file_resync,
.m_read_page = lmv_read_page,
- .m_unlink = lmv_unlink,
- .m_init_ea_size = lmv_init_ea_size,
- .m_cancel_unused = lmv_cancel_unused,
- .m_set_lock_data = lmv_set_lock_data,
- .m_lock_match = lmv_lock_match,
+ .m_unlink = lmv_unlink,
+ .m_init_ea_size = lmv_init_ea_size,
+ .m_cancel_unused = lmv_cancel_unused,
+ .m_set_lock_data = lmv_set_lock_data,
+ .m_lock_match = lmv_lock_match,
.m_get_lustre_md = lmv_get_lustre_md,
- .m_free_lustre_md = lmv_free_lustre_md,
+ .m_put_lustre_md = lmv_put_lustre_md,
.m_merge_attr = lmv_merge_attr,
- .m_set_open_replay_data = lmv_set_open_replay_data,
- .m_clear_open_replay_data = lmv_clear_open_replay_data,
- .m_intent_getattr_async = lmv_intent_getattr_async,
+ .m_set_open_replay_data = lmv_set_open_replay_data,
+ .m_clear_open_replay_data = lmv_clear_open_replay_data,
+ .m_intent_getattr_async = lmv_intent_getattr_async,
.m_revalidate_lock = lmv_revalidate_lock,
.m_get_fid_from_lsm = lmv_get_fid_from_lsm,
- .m_unpackmd = lmv_unpackmd,
+ .m_stripe_object_create = lmv_stripe_object_create,
.m_rmfid = lmv_rmfid,
+ .m_batch_create = lmv_batch_create,
+ .m_batch_add = lmv_batch_add,
+ .m_batch_stop = lmv_batch_stop,
+ .m_batch_flush = lmv_batch_flush,
};
static int __init lmv_init(void)
{
- return class_register_type(&lmv_obd_ops, &lmv_md_ops, true, NULL,
+ int rc;
+
+ rc = libcfs_setup();
+ if (rc)
+ return rc;
+
+ return class_register_type(&lmv_obd_ops, &lmv_md_ops, true,
LUSTRE_LMV_NAME, NULL);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff