#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>
static int lmv_check_connect(struct obd_device *obd);
-static void lmv_activate_target(struct lmv_obd *lmv,
- struct lmv_tgt_desc *tgt,
- int activate)
+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)
+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,
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);
+ " 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);
- if (!mdc_obd) {
- CERROR("target %s not attached\n", tgt->ltd_uuid.uuid);
- RETURN(-EINVAL);
- }
+ mdc_obd = class_find_client_obd(&tgt->ltd_uuid, LUSTRE_MDC_NAME,
+ &obd->obd_uuid);
+ if (!mdc_obd) {
+ CERROR("target %s not attached\n", tgt->ltd_uuid.uuid);
+ RETURN(-EINVAL);
+ }
CDEBUG(D_CONFIG, "connect to %s(%s) - %s, %s\n",
mdc_obd->obd_name, mdc_obd->obd_uuid.uuid,
tgt->ltd_uuid.uuid, obd->obd_uuid.uuid);
- if (!mdc_obd->obd_set_up) {
- CERROR("target %s is not set up\n", tgt->ltd_uuid.uuid);
- RETURN(-EINVAL);
- }
+ if (!mdc_obd->obd_set_up) {
+ CERROR("target %s is not set up\n", tgt->ltd_uuid.uuid);
+ RETURN(-EINVAL);
+ }
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.
if (rc)
RETURN(rc);
- target.ft_srv = NULL;
- target.ft_exp = mdc_exp;
- target.ft_idx = tgt->ltd_idx;
+ target.ft_srv = NULL;
+ target.ft_exp = mdc_exp;
+ target.ft_idx = tgt->ltd_index;
- fld_client_add_target(&lmv->lmv_fld, &target);
+ fld_client_add_target(&lmv->lmv_fld, &target);
- rc = obd_register_observer(mdc_obd, obd);
- if (rc) {
- obd_disconnect(mdc_exp);
- CERROR("target %s register_observer error %d\n",
- tgt->ltd_uuid.uuid, rc);
- RETURN(rc);
- }
+ rc = obd_register_observer(mdc_obd, obd);
+ if (rc) {
+ obd_disconnect(mdc_exp);
+ CERROR("target %s register_observer error %d\n",
+ tgt->ltd_uuid.uuid, rc);
+ RETURN(rc);
+ }
if (obd->obd_observer) {
/*
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 = 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,
+ atomic_read(&obd->obd_refcount));
+
+ lmv_statfs_check_update(obd, tgt);
if (lmv->lmv_tgts_kobj)
/* Even if we failed to create the link, that's fine */
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;
-
- 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,
__u32 index, int gen)
{
struct obd_device *mdc_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_tgt_desc *tgt;
- int orig_tgt_count = 0;
- int rc = 0;
- ENTRY;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
+ struct lu_tgt_descs *ltd = &lmv->lmv_mdt_descs;
+ int rc = 0;
+
+ ENTRY;
CDEBUG(D_CONFIG, "Target uuid: %s. index %d\n", uuidp->uuid, index);
mdc_obd = class_find_client_obd(uuidp, LUSTRE_MDC_NAME,
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_idx = index;
+ 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);
- out_disc:
- while (i-- > 0) {
- int rc2;
- tgt = lmv->tgts[i];
- if (tgt == NULL)
+ return rc;
+
+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);
+ --lmv->lmv_mdt_descs.ltd_lmv_desc.ld_active_tgt_count;
+ obd_disconnect(tgt->ltd_exp);
+ }
- RETURN(rc);
+ 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,
rc = obd_fid_fini(tgt->ltd_exp->exp_obd);
if (rc)
- CERROR("Can't finanize fids factory\n");
-
- CDEBUG(D_INFO, "Disconnected from %s(%s) successfully\n",
- tgt->ltd_exp->exp_obd->obd_name,
- tgt->ltd_exp->exp_obd->obd_uuid.uuid);
-
- 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);
- }
- }
+ CERROR("Can't finalize fids factory\n");
- lmv_activate_target(lmv, tgt, 0);
- tgt->ltd_exp = NULL;
- RETURN(0);
+ CDEBUG(D_INFO, "Disconnected from %s(%s) successfully\n",
+ tgt->ltd_exp->exp_obd->obd_name,
+ tgt->ltd_exp->exp_obd->obd_uuid.uuid);
+
+ 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);
+ }
+ }
+
+ lmv_activate_target(lmv, tgt, 0);
+ 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);
+ if (!lmv->connected)
+ class_export_put(exp);
+ rc = class_disconnect(exp);
lmv->connected = 0;
RETURN(rc);
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 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));
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;
+ lmv_foreach_connected_tgt(lmv, tgt)
/* best effort: try to clean as much as possible
* (continue on error) */
obd_iocontrol(cmd, tgt->ltd_exp, len, lk, uarg);
- }
/* Whatever the result, remove copytool from kuc groups.
* Unreached coordinators will get EPIPE on next requests
{
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;
-
+ lmv_foreach_connected_tgt(lmv, tgt) {
err = obd_iocontrol(cmd, tgt->ltd_exp, len, lk, uarg);
if (err) {
if (tgt->ltd_active) {
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);
}
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;
- if (count == 0)
- RETURN(-ENOTTY);
+ if (count == 0)
+ RETURN(-ENOTTY);
+
+ 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));
- memcpy(&index, data->ioc_inlbuf2, sizeof(__u32));
- if ((index >= count))
- RETURN(-ENODEV);
+ if (index >= lmv->lmv_mdt_descs.ltd_tgts_size)
+ RETURN(-ENODEV);
- tgt = lmv->tgts[index];
- if (tgt == NULL || !tgt->ltd_active)
+ tgt = lmv_tgt(lmv, index);
+ if (!tgt)
+ RETURN(-EAGAIN);
+
+ if (!tgt->ltd_active)
RETURN(-ENODATA);
mdc_obd = class_exp2obd(tgt->ltd_exp);
(int) 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;
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);
+ if (!tgt->ltd_exp)
+ RETURN(-EINVAL);
- break;
- }
- } else {
- RETURN(-EINVAL);
- }
+ break;
+ }
+ } else {
+ RETURN(-EINVAL);
+ }
- if (i >= count)
- RETURN(-EAGAIN);
+ if (!tgt || !tgt->ltd_exp)
+ RETURN(-EINVAL);
- LASSERT(tgt != NULL && tgt->ltd_exp != NULL);
- OBD_ALLOC_PTR(oqctl);
- if (!oqctl)
- RETURN(-ENOMEM);
+ 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;
- }
+ 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)
- RETURN(-ENODATA);
- rc = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
+ tgt = lmv_tgt(lmv, 0);
+ rc = -ENODATA;
+ if (tgt && tgt->ltd_exp)
+ rc = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
break;
}
case LL_IOC_FID2MDTIDX: {
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);
* 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));
RETURN(-EINVAL);
/* only files on same MDT can have their layouts swapped */
- if (tgt1->ltd_idx != tgt2->ltd_idx)
+ if (tgt1->ltd_index != tgt2->ltd_index)
RETURN(-EPERM);
rc = obd_iocontrol(cmd, tgt1->ltd_exp, len, karg, uarg);
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_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);
+ tgt->ltd_uuid.uuid,
+ tgt->ltd_index, cmd, err);
if (!rc)
rc = err;
}
} else
set = 1;
- }
- if (!set && !rc)
- rc = -EIO;
- }
- RETURN(rc);
+ }
+ if (!set && !rc)
+ rc = -EIO;
+ }
+ RETURN(rc);
}
-/**
- * This is _inode_ placement policy function (not name).
- */
-static int lmv_placement_policy(struct obd_device *obd,
- struct md_op_data *op_data, u32 *mds)
+int lmv_fid_alloc(const struct lu_env *env, struct obd_export *exp,
+ struct lu_fid *fid, struct md_op_data *op_data)
{
- struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_user_md *lum;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
+ int rc;
ENTRY;
- LASSERT(mds != NULL);
-
- if (lmv->desc.ld_tgt_count == 1) {
- *mds = 0;
- RETURN(0);
- }
+ LASSERT(op_data);
+ LASSERT(fid);
- lum = op_data->op_data;
- /* Choose MDS by
- * 1. See if the stripe offset is specified by lum.
- * 2. Then check if there is default stripe offset.
- * 3. 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) {
- *mds = le32_to_cpu(lum->lum_stripe_offset);
- } else if (op_data->op_default_stripe_offset != (__u32)-1) {
- *mds = op_data->op_default_stripe_offset;
- op_data->op_mds = *mds;
- /* Correct the stripe offset in lum */
- if (lum != NULL &&
- le32_to_cpu(lum->lum_magic != LMV_MAGIC_FOREIGN))
- lum->lum_stripe_offset = cpu_to_le32(*mds);
- } else {
- *mds = op_data->op_mds;
- }
+ tgt = lmv_tgt(lmv, op_data->op_mds);
+ if (!tgt)
+ RETURN(-ENODEV);
- RETURN(0);
-}
-
-int __lmv_fid_alloc(struct lmv_obd *lmv, struct lu_fid *fid, u32 mds)
-{
- struct lmv_tgt_desc *tgt;
- int rc;
- ENTRY;
-
- 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;
-}
-
-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;
- u32 mds = 0;
- int rc;
- ENTRY;
-
- LASSERT(op_data != NULL);
- LASSERT(fid != NULL);
-
- rc = lmv_placement_policy(obd, op_data, &mds);
- if (rc) {
- CERROR("Can't get target for allocating fid, "
- "rc %d\n", rc);
- RETURN(rc);
- }
-
- rc = __lmv_fid_alloc(lmv, fid, mds);
- if (rc) {
- CERROR("Can't alloc new fid, rc %d\n", rc);
- RETURN(rc);
- }
-
- RETURN(rc);
+ RETURN(rc);
}
static int lmv_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
{
- struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_obd *lmv = &obd->u.lmv;
struct lmv_desc *desc;
- int rc;
- ENTRY;
+ struct lnet_process_id lnet_id;
+ int i = 0;
+ int rc;
- if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
- CERROR("LMV setup requires a descriptor\n");
- RETURN(-EINVAL);
- }
+ ENTRY;
- 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);
- }
+ if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
+ CERROR("LMV setup requires a descriptor\n");
+ RETURN(-EINVAL);
+ }
- lmv->tgts_size = 32U;
- OBD_ALLOC(lmv->tgts, sizeof(*lmv->tgts) * lmv->tgts_size);
- if (lmv->tgts == NULL)
- RETURN(-ENOMEM);
+ 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;
+ 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);
+
+ /*
+ * 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_id.nid != LNET_NID_LO_0) {
+ lmv->lmv_qos_rr_index = (u32)lnet_id.nid;
+ break;
+ }
+ }
rc = lmv_tunables_init(obd);
if (rc)
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);
- }
- RETURN(0);
+ 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);
-out:
- return rc;
+ 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;
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;
- }
+ lmv_foreach_tgt_safe(lmv, tgt, tmp)
+ lmv_del_target(lmv, tgt);
+ lu_tgt_descs_fini(&lmv->lmv_mdt_descs);
+
RETURN(0);
}
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 */
if (LNetGetId(i, &lnet_id) == -ENOENT)
break;
- if (LNET_NETTYP(LNET_NIDNET(lnet_id.nid)) != LOLND) {
+ if (lnet_id.nid != LNET_NID_LO_0) {
/* 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 = (u32)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;
+
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);
- 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);
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 */
osfs->os_files += temp->os_files;
osfs->os_granted += temp->os_granted;
}
- }
+ }
- EXIT;
+ EXIT;
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)
+{
+ struct obd_info *oinfo = cookie;
+ struct obd_device *obd = oinfo->oi_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt = oinfo->oi_tgt;
+ struct obd_statfs *osfs = oinfo->oi_osfs;
+
+ /*
+ * 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);
+ set_bit(LQ_DIRTY, &lmv->lmv_qos.lq_flags);
+ }
+
+ return rc;
+}
+
+/* update tgt statfs async if it's ld_qos_maxage old */
+int lmv_statfs_check_update(struct obd_device *obd, struct lmv_tgt_desc *tgt)
+{
+ struct obd_info oinfo = {
+ .oi_obd = obd,
+ .oi_tgt = tgt,
+ .oi_cb_up = lmv_statfs_update,
+ };
+ int rc;
+
+ if (ktime_get_seconds() - tgt->ltd_statfs_age <
+ obd->u.lmv.lmv_mdt_descs.ltd_lmv_desc.ld_qos_maxage)
+ return 0;
+
+ rc = obd_statfs_async(tgt->ltd_exp, &oinfo, 0, NULL);
+
+ return rc;
}
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;
+
+ if (!tgt)
+ RETURN(-ENODEV);
- rc = md_get_root(lmv->tgts[0]->ltd_exp, fileset, fid);
+ rc = md_get_root(tgt->ltd_exp, fileset, fid);
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;
- tgt = lmv_find_target(lmv, fid);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ ENTRY;
+
+ 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;
- tgt = lmv_find_target(lmv, &op_data->op_fid1);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ ENTRY;
+
+ 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_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;
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_tgt_desc *tgt;
+ int rc;
- tgt = lmv_find_target(lmv, &op_data->op_fid1);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ 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 struct lu_tgt_desc *lmv_locate_tgt_qos(struct lmv_obd *lmv, __u32 *mdt)
+{
+ struct lu_tgt_desc *tgt;
+ __u64 total_weight = 0;
+ __u64 cur_weight = 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) {
+ tgt->ltd_qos.ltq_usable = 0;
+ if (!tgt->ltd_exp || !tgt->ltd_active)
+ continue;
+
+ tgt->ltd_qos.ltq_usable = 1;
+ lu_tgt_qos_weight_calc(tgt);
+ total_weight += tgt->ltd_qos.ltq_weight;
+ }
+
+ 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;
+
+ *mdt = tgt->ltd_index;
+ ltd_qos_update(&lmv->lmv_mdt_descs, tgt, &total_weight);
+ GOTO(unlock, rc = 0);
+ }
- CDEBUG(D_INODE, "CLOSE "DFID"\n", PFID(&op_data->op_fid1));
- rc = md_close(tgt->ltd_exp, op_data, mod, request);
- RETURN(rc);
+ /* 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, __u32 *mdt)
+{
+ 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->ltd_exp || !tgt->ltd_active)
+ continue;
+
+ *mdt = tgt->ltd_index;
+ lmv->lmv_qos_rr_index = (*mdt + 1) %
+ lmv->lmv_mdt_descs.ltd_tgts_size;
+ spin_unlock(&lmv->lmv_lock);
+
+ RETURN(tgt);
+ }
+ spin_unlock(&lmv->lmv_lock);
+
+ RETURN(ERR_PTR(-ENODEV));
}
-struct lmv_tgt_desc*
-__lmv_locate_tgt(struct lmv_obd *lmv, struct lmv_stripe_md *lsm,
- const char *name, int namelen, struct lu_fid *fid, u32 *mds,
- bool post_migrate)
+/* 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,
+ const char *name, int namelen, struct lu_fid *fid,
+ __u32 *mds, bool new_layout)
{
struct lmv_tgt_desc *tgt;
const struct lmv_oinfo *oinfo;
- if (lsm == NULL || namelen == 0) {
- tgt = lmv_find_target(lmv, fid);
+ if (!lmv_dir_striped(lsm) || !namelen) {
+ tgt = lmv_fid2tgt(lmv, fid);
if (IS_ERR(tgt))
return tgt;
- LASSERT(mds);
- *mds = tgt->ltd_idx;
+ *mds = tgt->ltd_index;
return tgt;
}
return ERR_PTR(-EBADF);
oinfo = &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(lsm, name, namelen, new_layout);
if (IS_ERR(oinfo))
return ERR_CAST(oinfo);
}
- if (fid != NULL)
- *fid = oinfo->lmo_fid;
- if (mds != NULL)
- *mds = oinfo->lmo_mds;
+ /* check stripe FID is sane */
+ if (!fid_is_sane(&oinfo->lmo_fid))
+ return ERR_PTR(-ENODEV);
- tgt = lmv_get_target(lmv, oinfo->lmo_mds, NULL);
+ *fid = oinfo->lmo_fid;
+ *mds = oinfo->lmo_mds;
+ tgt = lmv_tgt(lmv, oinfo->lmo_mds);
- CDEBUG(D_INFO, "locate on mds %u "DFID"\n", oinfo->lmo_mds,
- PFID(&oinfo->lmo_fid));
+ CDEBUG(D_INODE, "locate MDT %u parent "DFID"\n", *mds, PFID(fid));
- return tgt;
+ return tgt ? tgt : ERR_PTR(-ENODEV);
}
-
/**
- * Locate mdt by fid or name
+ * Locate MDT of op_data->op_fid1
*
* 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 normal direcotry, it will locate MDS by FID directly.
+ * For plain direcotry, 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] fid object FID used to locate MDS.
+ * \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_mea1
+ * 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 lu_fid *fid)
+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_oinfo *oinfo;
struct lmv_tgt_desc *tgt;
- /* foreign dir is not striped dir */
- if (lsm && lsm->lsm_md_magic == LMV_MAGIC_FOREIGN)
+ if (lmv_dir_foreign(lsm))
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(). */
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 (lsm) {
+ if (lmv_dir_striped(lsm)) {
int i;
/* refill the right parent fid */
for (i = 0; i < lsm->lsm_md_stripe_count; i++) {
oinfo = &lsm->lsm_md_oinfo[i];
if (oinfo->lmo_mds == op_data->op_mds) {
- *fid = oinfo->lmo_fid;
+ op_data->op_fid1 = oinfo->lmo_fid;
break;
}
}
if (i == lsm->lsm_md_stripe_count)
- *fid = lsm->lsm_md_oinfo[0].lmo_fid;
+ op_data->op_fid1 = lsm->lsm_md_oinfo[0].lmo_fid;
}
- } else if (lmv_is_dir_bad_hash(lsm)) {
+ } else if (lmv_dir_bad_hash(lsm)) {
LASSERT(op_data->op_stripe_index < lsm->lsm_md_stripe_count);
oinfo = &lsm->lsm_md_oinfo[op_data->op_stripe_index];
- *fid = oinfo->lmo_fid;
+ op_data->op_fid1 = oinfo->lmo_fid;
op_data->op_mds = oinfo->lmo_mds;
- tgt = lmv_get_target(lmv, oinfo->lmo_mds, NULL);
+ tgt = lmv_tgt(lmv, oinfo->lmo_mds);
+ if (!tgt)
+ return ERR_PTR(-ENODEV);
} else {
- tgt = __lmv_locate_tgt(lmv, lsm, op_data->op_name,
- op_data->op_namelen, fid,
- &op_data->op_mds,
- op_data->op_post_migrate);
+ tgt = lmv_locate_tgt_by_name(lmv, op_data->op_mea1,
+ op_data->op_name, op_data->op_namelen,
+ &op_data->op_fid1, &op_data->op_mds,
+ op_data->op_new_layout);
}
return tgt;
}
+/* Locate MDT of op_data->op_fid2 for link/rename */
+static struct lmv_tgt_desc *
+lmv_locate_tgt2(struct lmv_obd *lmv, struct md_op_data *op_data)
+{
+ struct lmv_tgt_desc *tgt;
+ int rc;
+
+ LASSERT(op_data->op_name);
+ if (lmv_dir_layout_changing(op_data->op_mea2)) {
+ struct lu_fid fid1 = op_data->op_fid1;
+ struct lmv_stripe_md *lsm1 = op_data->op_mea1;
+ 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,
+ 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;
+ rc = md_getattr_name(tgt->ltd_exp, op_data, &request);
+ op_data->op_fid1 = fid1;
+ op_data->op_mea1 = lsm1;
+ if (!rc) {
+ ptlrpc_req_finished(request);
+ RETURN(ERR_PTR(-EEXIST));
+ }
+
+ if (rc != -ENOENT)
+ 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);
+}
+
+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_mea1));
+ 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 in two cases:
+ * 1. 'lfs mkdir -i -1'
+ * 2. parent default LMV master_mdt_index is -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_qos_mkdir(const struct md_op_data *op_data)
+{
+ const struct lmv_stripe_md *lsm = op_data->op_default_mea1;
+ 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_mea1))
+ return false;
+
+ if (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)
+ return true;
+
+ if (lsm && lsm->lsm_md_master_mdt_index == LMV_OFFSET_DEFAULT)
+ return true;
+
+ return false;
+}
+
+/* '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_mea1 &&
+ op_data->op_default_mea1->lsm_md_master_mdt_index !=
+ LMV_OFFSET_DEFAULT;
+}
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)
-{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_tgt_desc *tgt;
- int rc;
+ gid_t gid, cfs_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_is_dir_bad_hash(op_data->op_mea1))
+ if (lmv_dir_bad_hash(op_data->op_mea1))
RETURN(-EBADF);
- if (lmv_is_dir_migrating(op_data->op_mea1)) {
+ if (lmv_dir_layout_changing(op_data->op_mea1)) {
/*
* 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, &op_data->op_fid1);
- 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, &op_data->op_fid1);
+ 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);
+ 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);
+ } else if (lmv_op_default_specific_mkdir(op_data)) {
+ op_data->op_mds =
+ op_data->op_default_mea1->lsm_md_master_mdt_index;
+ tgt = lmv_tgt(lmv, op_data->op_mds);
+ if (!tgt)
+ RETURN(-ENODEV);
+ } else if (lmv_op_qos_mkdir(op_data)) {
+ 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);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
+ /*
+ * only update statfs after QoS mkdir, this means the cached
+ * statfs may be stale, and current mkdir may not follow QoS
+ * accurately, but it's not serious, and avoids periodic statfs
+ * when client doesn't mkdir by QoS.
+ */
+ lmv_statfs_check_update(obd, 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_idx;
- } else {
- CDEBUG(D_CONFIG, "Server doesn't support striped dirs\n");
- }
-
- 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));
CDEBUG(D_INODE, "ENQUEUE on "DFID" -> mds #%u\n",
- PFID(&op_data->op_fid1), tgt->ltd_idx);
+ PFID(&op_data->op_fid1), tgt->ltd_index);
rc = md_enqueue(tgt->ltd_exp, einfo, policy, op_data, lockh,
extra_lock_flags);
ENTRY;
retry:
- tgt = lmv_locate_tgt(lmv, op_data, &op_data->op_fid1);
+ tgt = lmv_locate_tgt(lmv, op_data);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
CDEBUG(D_INODE, "GETATTR_NAME for %*s on "DFID" -> mds #%d\n",
(int)op_data->op_namelen, op_data->op_name,
- PFID(&op_data->op_fid1), tgt->ltd_idx);
+ PFID(&op_data->op_fid1), tgt->ltd_index);
rc = md_getattr_name(tgt->ltd_exp, op_data, preq);
if (rc == -ENOENT && lmv_dir_retry_check_update(op_data)) {
RETURN(0);
if (tgt == NULL) {
- tgt = lmv_find_target(lmv, fid);
+ tgt = lmv_fid2tgt(lmv, fid);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
}
- if (tgt->ltd_idx != op_tgt) {
+ if (tgt->ltd_index != op_tgt) {
CDEBUG(D_INODE, "EARLY_CANCEL on "DFID"\n", PFID(fid));
policy.l_inodebits.bits = bits;
rc = md_cancel_unused(tgt->ltd_exp, fid, &policy,
op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid());
op_data->op_cap = cfs_curproc_cap_pack();
- if (lmv_is_dir_migrating(op_data->op_mea2)) {
- struct lu_fid fid1 = op_data->op_fid1;
- struct lmv_stripe_md *lsm1 = op_data->op_mea1;
-
- /*
- * avoid creating new file under old layout of migrating
- * directory, check it here.
- */
- tgt = __lmv_locate_tgt(lmv, op_data->op_mea2, op_data->op_name,
- op_data->op_namelen, &op_data->op_fid2,
- &op_data->op_mds, false);
- tgt = lmv_locate_tgt(lmv, op_data, &op_data->op_fid1);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
-
- op_data->op_fid1 = op_data->op_fid2;
- op_data->op_mea1 = op_data->op_mea2;
- rc = md_getattr_name(tgt->ltd_exp, op_data, request);
- op_data->op_fid1 = fid1;
- op_data->op_mea1 = lsm1;
- if (!rc) {
- ptlrpc_req_finished(*request);
- *request = NULL;
- RETURN(-EEXIST);
- }
-
- if (rc != -ENOENT)
- RETURN(rc);
- }
-
- tgt = __lmv_locate_tgt(lmv, op_data->op_mea2, op_data->op_name,
- op_data->op_namelen, &op_data->op_fid2,
- &op_data->op_mds, true);
+ tgt = lmv_locate_tgt2(lmv, op_data);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
* Cancel UPDATE lock on child (fid1).
*/
op_data->op_flags |= MF_MDC_CANCEL_FID2;
- rc = lmv_early_cancel(exp, NULL, op_data, tgt->ltd_idx, LCK_EX,
+ rc = lmv_early_cancel(exp, NULL, op_data, tgt->ltd_index, LCK_EX,
MDS_INODELOCK_UPDATE, MF_MDC_CANCEL_FID1);
if (rc != 0)
RETURN(rc);
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_fsgid = from_kgid(&init_user_ns, current_fsgid());
op_data->op_cap = cfs_curproc_cap_pack();
- 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 (lsm) {
- __u32 hash_type = lsm->lsm_md_hash_type;
- __u32 stripe_count = lsm->lsm_md_stripe_count;
-
- /*
- * old stripes are appended after new stripes for migrating
- * directory.
- */
- if (lsm->lsm_md_hash_type & LMV_HASH_FLAG_MIGRATION) {
- 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_striped(lsm)) {
+ const struct lmv_oinfo *oinfo;
- if (lsm->lsm_md_hash_type & LMV_HASH_FLAG_MIGRATION)
- rc += lsm->lsm_md_migrate_offset;
+ oinfo = lsm_name_to_stripe_info(lsm, 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(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 (lsm->lsm_md_hash_type & LMV_HASH_FLAG_MIGRATION) {
- 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(lsm)) {
+ oinfo = lsm_name_to_stripe_info(lsm, name, namelen,
+ true);
+ if (IS_ERR(oinfo))
+ RETURN(PTR_ERR(oinfo));
+
+ op_data->op_fid2 = oinfo->lmo_fid;
+ tp_tgt = lmv_tgt(lmv, oinfo->lmo_mds);
+ if (!tp_tgt)
+ RETURN(-ENODEV);
}
} 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_idx);
- else
- rc = lmv_fid_alloc(NULL, exp, &target_fid, op_data);
+ /* for directory, migrate to MDT specified by lum_stripe_offset;
+ * otherwise migrate to the target stripe of parent, but parent
+ * directory may have finished migration (normally current file too),
+ * allocate FID on MDT lum_stripe_offset, and server will check
+ * whether file was migrated already.
+ */
+ if (S_ISDIR(op_data->op_mode) || !tp_tgt) {
+ struct lmv_user_md *lum = op_data->op_data;
+
+ op_data->op_mds = le32_to_cpu(lum->lum_stripe_offset);
+ } else {
+ op_data->op_mds = tp_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 {
}
/* cancel UPDATE lock of parent master object */
- rc = lmv_early_cancel(exp, parent_tgt, op_data, tgt->ltd_idx, LCK_EX,
+ rc = lmv_early_cancel(exp, parent_tgt, op_data, tgt->ltd_index, LCK_EX,
MDS_INODELOCK_UPDATE, MF_MDC_CANCEL_FID1);
if (rc)
RETURN(rc);
op_data->op_fid4 = target_fid;
/* cancel UPDATE locks of target parent */
- rc = lmv_early_cancel(exp, tp_tgt, op_data, tgt->ltd_idx, LCK_EX,
+ rc = lmv_early_cancel(exp, tp_tgt, op_data, tgt->ltd_index, LCK_EX,
MDS_INODELOCK_UPDATE, MF_MDC_CANCEL_FID2);
if (rc)
RETURN(rc);
/* cancel LOOKUP lock of source if source is remote object */
if (child_tgt != sp_tgt) {
- rc = lmv_early_cancel(exp, sp_tgt, op_data, tgt->ltd_idx,
+ rc = lmv_early_cancel(exp, sp_tgt, op_data, tgt->ltd_index,
LCK_EX, MDS_INODELOCK_LOOKUP,
MF_MDC_CANCEL_FID3);
if (rc)
}
/* cancel ELC locks of source */
- rc = lmv_early_cancel(exp, child_tgt, op_data, tgt->ltd_idx, LCK_EX,
+ rc = lmv_early_cancel(exp, child_tgt, op_data, tgt->ltd_index, LCK_EX,
MDS_INODELOCK_ELC, MF_MDC_CANCEL_FID3);
if (rc)
RETURN(rc);
op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid());
op_data->op_cap = cfs_curproc_cap_pack();
- if (lmv_is_dir_migrating(op_data->op_mea2)) {
- struct lu_fid fid1 = op_data->op_fid1;
- struct lmv_stripe_md *lsm1 = op_data->op_mea1;
-
- /*
- * we avoid creating new file under old layout of migrating
- * directory, if there is an existing file with new name under
- * old layout, we can't unlink file in old layout and rename to
- * new layout in one transaction, so return -EBUSY here.`
- */
- tgt = __lmv_locate_tgt(lmv, op_data->op_mea2, new, newlen,
- &op_data->op_fid2, &op_data->op_mds,
- false);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
-
- op_data->op_fid1 = op_data->op_fid2;
- op_data->op_mea1 = op_data->op_mea2;
- op_data->op_name = new;
- op_data->op_namelen = newlen;
- rc = md_getattr_name(tgt->ltd_exp, op_data, request);
- op_data->op_fid1 = fid1;
- op_data->op_mea1 = lsm1;
- op_data->op_name = NULL;
- op_data->op_namelen = 0;
- if (!rc) {
- ptlrpc_req_finished(*request);
- *request = NULL;
- RETURN(-EBUSY);
- }
-
- if (rc != -ENOENT)
- RETURN(rc);
- }
+ op_data->op_name = new;
+ op_data->op_namelen = newlen;
- /* rename to new layout for migrating directory */
- tp_tgt = __lmv_locate_tgt(lmv, op_data->op_mea2, new, newlen,
- &op_data->op_fid2, &op_data->op_mds, true);
+ tp_tgt = lmv_locate_tgt2(lmv, op_data);
if (IS_ERR(tp_tgt))
RETURN(PTR_ERR(tp_tgt));
* target child does not exist, then it will send the request to the
* 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 {
op_data->op_flags |= MF_MDC_CANCEL_FID4;
/* cancel UPDATE locks of target parent */
- rc = lmv_early_cancel(exp, tp_tgt, op_data, tgt->ltd_idx, LCK_EX,
+ rc = lmv_early_cancel(exp, tp_tgt, op_data, tgt->ltd_index, LCK_EX,
MDS_INODELOCK_UPDATE, MF_MDC_CANCEL_FID2);
if (rc != 0)
RETURN(rc);
/* cancel LOOKUP lock of target on target parent */
if (tgt != tp_tgt) {
rc = lmv_early_cancel(exp, tp_tgt, op_data,
- tgt->ltd_idx, LCK_EX,
+ tgt->ltd_index, LCK_EX,
MDS_INODELOCK_LOOKUP,
MF_MDC_CANCEL_FID4);
if (rc != 0)
}
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));
/* cancel ELC locks of source */
- rc = lmv_early_cancel(exp, src_tgt, op_data, tgt->ltd_idx,
+ rc = lmv_early_cancel(exp, src_tgt, op_data, tgt->ltd_index,
LCK_EX, MDS_INODELOCK_ELC,
MF_MDC_CANCEL_FID3);
if (rc != 0)
RETURN(rc);
}
+ op_data->op_name = old;
+ op_data->op_namelen = oldlen;
retry:
- sp_tgt = __lmv_locate_tgt(lmv, op_data->op_mea1, old, oldlen,
- &op_data->op_fid1, &op_data->op_mds,
- op_data->op_post_migrate);
+ sp_tgt = lmv_locate_tgt(lmv, op_data);
if (IS_ERR(sp_tgt))
RETURN(PTR_ERR(sp_tgt));
/* cancel UPDATE locks of source parent */
- rc = lmv_early_cancel(exp, sp_tgt, op_data, tgt->ltd_idx, LCK_EX,
+ rc = lmv_early_cancel(exp, sp_tgt, op_data, tgt->ltd_index, LCK_EX,
MDS_INODELOCK_UPDATE, MF_MDC_CANCEL_FID1);
if (rc != 0)
RETURN(rc);
/* cancel LOOKUP lock of source on source parent */
if (src_tgt != sp_tgt) {
rc = lmv_early_cancel(exp, sp_tgt, op_data,
- tgt->ltd_idx, LCK_EX,
+ tgt->ltd_index, LCK_EX,
MDS_INODELOCK_LOOKUP,
MF_MDC_CANCEL_FID3);
if (rc != 0)
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));
/* cancel LOOKUP lock of target on target parent */
if (tgt != tp_tgt) {
rc = lmv_early_cancel(exp, tp_tgt, op_data,
- tgt->ltd_idx, LCK_EX,
+ tgt->ltd_index, LCK_EX,
MDS_INODELOCK_LOOKUP,
MF_MDC_CANCEL_FID4);
if (rc != 0)
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));
break;
}
- tgt = lmv_get_target(ctxt->ldc_lmv, oinfo->lmo_mds, NULL);
- if (IS_ERR(tgt)) {
- rc = PTR_ERR(tgt);
+ tgt = lmv_tgt(ctxt->ldc_lmv, oinfo->lmo_mds);
+ if (!tgt) {
+ rc = -ENODEV;
break;
}
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));
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_callback *cb_op, __u64 offset,
+ struct page **ppage)
{
- 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_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;
- if (unlikely(lsm != NULL)) {
- /* foreign dir is not striped dir */
- if (lsm->lsm_md_magic == LMV_MAGIC_FOREIGN)
- return -ENODATA;
+ if (unlikely(lmv_dir_foreign(op_data->op_mea1)))
+ RETURN(-ENODATA);
+ if (unlikely(lmv_dir_striped(op_data->op_mea1))) {
rc = lmv_striped_read_page(exp, op_data, cb_op, 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));
op_data->op_cap = cfs_curproc_cap_pack();
retry:
- parent_tgt = lmv_locate_tgt(lmv, op_data, &op_data->op_fid1);
+ parent_tgt = lmv_locate_tgt(lmv, op_data);
if (IS_ERR(parent_tgt))
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 {
op_data->op_flags |= MF_MDC_CANCEL_FID1 | MF_MDC_CANCEL_FID3;
if (parent_tgt != tgt)
- rc = lmv_early_cancel(exp, parent_tgt, op_data, tgt->ltd_idx,
+ rc = lmv_early_cancel(exp, parent_tgt, op_data, tgt->ltd_index,
LCK_EX, MDS_INODELOCK_LOOKUP,
MF_MDC_CANCEL_FID3);
- rc = lmv_early_cancel(exp, NULL, op_data, tgt->ltd_idx, LCK_EX,
+ rc = lmv_early_cancel(exp, NULL, op_data, tgt->ltd_index, LCK_EX,
MDS_INODELOCK_ELC, MF_MDC_CANCEL_FID3);
if (rc)
RETURN(rc);
CDEBUG(D_INODE, "unlink with fid="DFID"/"DFID" -> mds #%u\n",
- PFID(&op_data->op_fid1), PFID(&op_data->op_fid2), tgt->ltd_idx);
+ PFID(&op_data->op_fid1), PFID(&op_data->op_fid2),
+ tgt->ltd_index);
rc = md_unlink(tgt->ltd_exp, op_data, request);
if (rc == -ENOENT && lmv_dir_retry_check_update(op_data)) {
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));
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;
-
- obd = class_exp2obd(exp);
- if (obd == NULL) {
- CDEBUG(D_IOCTL, "Invalid client cookie %#llx\n",
- exp->exp_handle.h_cookie);
- RETURN(-EINVAL);
- }
+ struct obd_device *obd;
+ struct lmv_obd *lmv;
+ struct lu_tgt_desc *tgt;
+ int rc = 0;
- lmv = &obd->u.lmv;
- if (keylen >= strlen("remote_flag") && !strcmp(key, "remote_flag")) {
- int i;
+ ENTRY;
- 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;
+ 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")) {
+ 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_lmv_desc.ld_tgt_count;
+ RETURN(0);
+ }
+
+ 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 *obd = class_exp2obd(exp);
+ struct ptlrpc_request_set *set = _set;
+ 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;
+
+ if (!set) {
+ set = ptlrpc_prep_set();
+ if (!set)
+ RETURN(-ENOMEM);
+ }
+
+ /* split FIDs by targets */
+ OBD_ALLOC_PTR_ARRAY(fas, tgt_count);
+ if (fas == NULL)
+ GOTO(out, rc = -ENOMEM);
+ OBD_ALLOC_PTR_ARRAY(rcs, tgt_count);
+ if (rcs == NULL)
+ GOTO(out_fas, rc = -ENOMEM);
- CDEBUG(D_IOCTL, "Invalid key\n");
- RETURN(-EINVAL);
+ for (i = 0; i < fa->fa_nr; i++) {
+ unsigned int idx;
+
+ rc = lmv_fld_lookup(lmv, &fa->fa_fids[i], &idx);
+ if (rc) {
+ CDEBUG(D_OTHER, "can't lookup "DFID": rc = %d\n",
+ PFID(&fa->fa_fids[i]), rc);
+ continue;
+ }
+ LASSERT(idx < tgt_count);
+ if (!fas[idx])
+ OBD_ALLOC(fas[idx], offsetof(struct fid_array,
+ fa_fids[fa->fa_nr]));
+ if (!fas[idx])
+ GOTO(out, rc = -ENOMEM);
+ if (!rcs[idx])
+ OBD_ALLOC_PTR_ARRAY(rcs[idx], fa->fa_nr);
+ if (!rcs[idx])
+ GOTO(out, rc = -ENOMEM);
+
+ fat = fas[idx];
+ fat->fa_fids[fat->fa_nr++] = fa->fa_fids[i];
+ }
+
+ lmv_foreach_connected_tgt(lmv, tgt) {
+ fat = fas[tgt->ltd_index];
+ if (!fat || fat->fa_nr == 0)
+ continue;
+ 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)
+ continue;
+ /* copy FIDs back */
+ memcpy(fa->fa_fids + j, fat->fa_fids,
+ fat->fa_nr * sizeof(struct lu_fid));
+ /* copy rcs back */
+ memcpy(__rcs + j, rcs[i], fat->fa_nr * sizeof(**rcs));
+ j += fat->fa_nr;
+ }
+ }
+ if (set != _set)
+ ptlrpc_set_destroy(set);
+
+out:
+ for (i = 0; i < tgt_count; i++) {
+ if (fas && fas[i])
+ OBD_FREE(fas[i], offsetof(struct fid_array,
+ fa_fids[fa->fa_nr]));
+ if (rcs && rcs[i])
+ OBD_FREE_PTR_ARRAY(rcs[i], fa->fa_nr);
+ }
+ if (rcs)
+ OBD_FREE_PTR_ARRAY(rcs, tgt_count);
+out_fas:
+ if (fas)
+ 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;
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)
if (cplen >= sizeof(lsm->lsm_md_pool_name))
RETURN(-E2BIG);
- CDEBUG(D_INFO, "unpack lsm count %d, master %d hash_type %#x "
+ 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_master_mdt_index, lsm->lsm_md_hash_type,
+ 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;
RETURN(rc);
}
+static inline int lmv_unpack_user_md(struct obd_export *exp,
+ struct lmv_stripe_md *lsm,
+ const struct lmv_user_md *lmu)
+{
+ lsm->lsm_md_magic = le32_to_cpu(lmu->lum_magic);
+ 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_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)
{
RETURN(0);
}
- for (i = 0; i < lsm->lsm_md_stripe_count; i++) {
- if (lsm->lsm_md_oinfo[i].lmo_root)
+ if (lmv_dir_striped(lsm)) {
+ for (i = 0; i < lsm->lsm_md_stripe_count; i++)
iput(lsm->lsm_md_oinfo[i].lmo_root);
+ lsm_size = lmv_stripe_md_size(lsm->lsm_md_stripe_count);
+ } else {
+ lsm_size = lmv_stripe_md_size(0);
}
- lsm_size = lmv_stripe_md_size(lsm->lsm_md_stripe_count);
OBD_FREE(lsm, lsm_size);
*lsmp = NULL;
RETURN(0);
*/
lsm_size = lmv_stripe_md_size(0);
- lsm_size = lmv_stripe_md_size(lmv_mds_md_stripe_count_get(lmm));
if (lsm == NULL) {
OBD_ALLOC(lsm, lsm_size);
if (lsm == NULL)
case LMV_MAGIC_V1:
rc = lmv_unpack_md_v1(exp, lsm, &lmm->lmv_md_v1);
break;
+ case LMV_USER_MAGIC:
+ rc = lmv_unpack_user_md(exp, lsm, &lmm->lmv_user_md);
+ break;
default:
CERROR("%s: unrecognized magic %x\n", exp->exp_obd->obd_name,
le32_to_cpu(lmm->lmv_magic));
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;
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ enum ldlm_mode rc;
+ struct lu_tgt_desc *tgt;
+ int i;
+ int index;
+
ENTRY;
CDEBUG(D_INODE, "Lock match 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. 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) {
+ 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), tgt);
- tgt = 0;
+ obd->obd_name, PFID(fid), index);
+ index = 0;
}
- if (lmv->tgts[tgt] == NULL ||
- lmv->tgts[tgt]->ltd_exp == NULL ||
- lmv->tgts[tgt]->ltd_active == 0)
+ tgt = lmv_tgt(lmv, index);
+ if (!tgt || !tgt->ltd_exp || !tgt->ltd_active)
continue;
- rc = md_lock_match(lmv->tgts[tgt]->ltd_exp, flags, fid,
- type, policy, mode, lockh);
+ rc = md_lock_match(tgt->ltd_exp, flags, fid, type, policy, mode,
+ lockh);
if (rc)
RETURN(rc);
}
RETURN(0);
}
-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 ptlrpc_request *req,
+ 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, req, dt_exp, md_exp, md);
}
-int lmv_free_lustre_md(struct obd_export *exp, struct lustre_md *md)
+static int lmv_free_lustre_md(struct obd_export *exp, struct lustre_md *md)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- struct 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)
+ if (!tgt || !tgt->ltd_exp)
RETURN(-EINVAL);
- RETURN(md_free_lustre_md(lmv->tgts[0]->ltd_exp, md));
+ RETURN(md_free_lustre_md(tgt->ltd_exp, md));
}
-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;
+
+ ENTRY;
- tgt = lmv_find_target(lmv, &och->och_fid);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ 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_enqueue_info *minfo)
{
struct md_op_data *op_data = &minfo->mi_data;
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_tgt_desc *tgt = NULL;
+ struct lmv_tgt_desc *ptgt;
+ struct lmv_tgt_desc *ctgt;
int rc;
+
ENTRY;
if (!fid_is_sane(&op_data->op_fid2))
RETURN(-EINVAL);
- tgt = lmv_find_target(lmv, &op_data->op_fid1);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ ptgt = lmv_locate_tgt(lmv, op_data);
+ if (IS_ERR(ptgt))
+ RETURN(PTR_ERR(ptgt));
+
+ ctgt = lmv_fid2tgt(lmv, &op_data->op_fid2);
+ if (IS_ERR(ctgt))
+ RETURN(PTR_ERR(ctgt));
/*
- * no special handle for remote dir, which needs to fetch both LOOKUP
- * lock on parent, and then UPDATE lock on child MDT, which makes all
- * complicated because this is done async. So only LOOKUP lock is
- * fetched for remote dir, but considering remote dir is rare case,
- * and not supporting it in statahead won't cause any issue, just leave
- * it as is.
+ * 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(tgt->ltd_exp, minfo);
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_md *lsm,
+ const char *name, int namelen,
+ struct lu_fid *fid)
{
const struct lmv_oinfo *oinfo;
- LASSERT(lsm != NULL);
+ LASSERT(lmv_dir_striped(lsm));
+
oinfo = lsm_name_to_stripe_info(lsm, 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 != Q_GETOQUOTA) {
+ rc = obd_quotactl(tgt->ltd_exp, oqctl);
+ RETURN(rc);
+ }
- curspace = curinodes = 0;
- for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
+ 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,
int rc;
int i;
- /* foreign dir is not striped dir */
- if (lsm->lsm_md_magic == LMV_MAGIC_FOREIGN)
+ if (!lmv_dir_striped(lsm))
return 0;
rc = lmv_revalidate_slaves(exp, lsm, cb_blocking, 0);
return 0;
}
-struct obd_ops lmv_obd_ops = {
+static const struct obd_ops lmv_obd_ops = {
.o_owner = THIS_MODULE,
.o_setup = lmv_setup,
.o_cleanup = lmv_cleanup,
.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
};
-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_revalidate_lock = lmv_revalidate_lock,
.m_get_fid_from_lsm = lmv_get_fid_from_lsm,
.m_unpackmd = lmv_unpackmd,
+ .m_rmfid = lmv_rmfid,
};
static int __init lmv_init(void)
{
- return class_register_type(&lmv_obd_ops, &lmv_md_ops, true, NULL,
+ return class_register_type(&lmv_obd_ops, &lmv_md_ops, true,
LUSTRE_LMV_NAME, NULL);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff