*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2014, Intel Corporation.
+ * Copyright (c) 2011, 2016, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <lustre_kernelcomm.h>
#include "lmv_internal.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)
tgt->ltd_active = activate;
lmv->desc.ld_active_tgt_count += (activate ? 1 : -1);
+
+ tgt->ltd_exp->exp_obd->obd_inactive = !activate;
}
/**
if (tgt == NULL || tgt->ltd_exp == NULL)
continue;
- CDEBUG(D_INFO, "Target idx %d is %s conn "LPX64"\n", i,
+ CDEBUG(D_INFO, "Target idx %d is %s conn %#llx\n", i,
tgt->ltd_uuid.uuid, tgt->ltd_exp->exp_handle.h_cookie);
if (obd_uuid_equals(uuid, &tgt->ltd_uuid))
*/
obd->obd_self_export->exp_connect_data = *conn_data;
}
-#if 0
- else if (ev == OBD_NOTIFY_DISCON) {
- /*
- * For disconnect event, flush fld cache for failout MDS case.
- */
- fld_client_flush(&lmv->lmv_fld);
- }
-#endif
+
/*
* Pass the notification up the chain.
*/
RETURN(rc);
}
-/**
- * This is fake connect function. Its purpose is to initialize lmv and say
- * caller that everything is okay. Real connection will be performed later.
- */
static int lmv_connect(const struct lu_env *env,
- struct obd_export **exp, struct obd_device *obd,
- struct obd_uuid *cluuid, struct obd_connect_data *data,
- void *localdata)
+ struct obd_export **pexp, struct obd_device *obd,
+ struct obd_uuid *cluuid, struct obd_connect_data *data,
+ void *localdata)
{
- struct lmv_obd *lmv = &obd->u.lmv;
- struct lustre_handle conn = { 0 };
- int rc = 0;
- ENTRY;
-
- /*
- * We don't want to actually do the underlying connections more than
- * once, so keep track.
- */
- lmv->refcount++;
- if (lmv->refcount > 1) {
- *exp = NULL;
- RETURN(0);
- }
-
- rc = class_connect(&conn, obd, cluuid);
- if (rc) {
- CERROR("class_connection() returned %d\n", rc);
- RETURN(rc);
- }
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lustre_handle conn = { 0 };
+ struct obd_export *exp;
+ int rc;
+ ENTRY;
- *exp = class_conn2export(&conn);
- class_export_get(*exp);
+ rc = class_connect(&conn, obd, cluuid);
+ if (rc) {
+ CERROR("class_connection() returned %d\n", rc);
+ RETURN(rc);
+ }
- lmv->exp = *exp;
- lmv->connected = 0;
- lmv->cluuid = *cluuid;
+ exp = class_conn2export(&conn);
- if (data)
- lmv->conn_data = *data;
+ lmv->connected = 0;
+ lmv->cluuid = *cluuid;
+ lmv->conn_data = *data;
if (lmv->targets_proc_entry == NULL) {
lmv->targets_proc_entry = lprocfs_register("target_obds",
}
}
- /*
- * All real clients should perform actual connection right away, because
- * it is possible, that LMV will not have opportunity to connect targets
- * and MDC stuff will be called directly, for instance while reading
- * ../mdc/../kbytesfree procfs file, etc.
- */
- if (data != NULL && (data->ocd_connect_flags & OBD_CONNECT_REAL))
- rc = lmv_check_connect(obd);
+ rc = lmv_check_connect(obd);
+ if (rc != 0)
+ GOTO(out_proc, rc);
+
+ *pexp = exp;
- if (rc && lmv->targets_proc_entry != NULL)
- lprocfs_remove(&lmv->targets_proc_entry);
RETURN(rc);
+
+out_proc:
+ if (lmv->targets_proc_entry != NULL)
+ lprocfs_remove(&lmv->targets_proc_entry);
+
+ class_disconnect(exp);
+
+ return rc;
}
static int lmv_init_ea_size(struct obd_export *exp, __u32 easize,
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;
ENTRY;
CDEBUG(D_CONFIG, "Target uuid: %s. index %d\n", uuidp->uuid, index);
-
- mutex_lock(&lmv->lmv_init_mutex);
-
- if (lmv->desc.ld_tgt_count == 0) {
- struct obd_device *mdc_obd;
-
- mdc_obd = class_find_client_obd(uuidp, LUSTRE_MDC_NAME,
- &obd->obd_uuid);
- if (!mdc_obd) {
- mutex_unlock(&lmv->lmv_init_mutex);
- CERROR("%s: Target %s not attached: rc = %d\n",
- obd->obd_name, uuidp->uuid, -EINVAL);
- RETURN(-EINVAL);
- }
+ mdc_obd = class_find_client_obd(uuidp, LUSTRE_MDC_NAME,
+ &obd->obd_uuid);
+ if (!mdc_obd) {
+ CERROR("%s: Target %s not attached: rc = %d\n",
+ obd->obd_name, uuidp->uuid, -EINVAL);
+ 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 LOV target index %d:"
lmv->desc.ld_tgt_count = index + 1;
}
- if (lmv->connected) {
- 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 {
- int easize = sizeof(struct lmv_stripe_md) +
- lmv->desc.ld_tgt_count * sizeof(struct lu_fid);
- lmv_init_ea_size(obd->obd_self_export, easize, 0);
- }
+ if (lmv->connected == 0) {
+ /* 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 {
+ int easize = sizeof(struct lmv_stripe_md) +
+ lmv->desc.ld_tgt_count * sizeof(struct lu_fid);
+ lmv_init_ea_size(obd->obd_self_export, easize, 0);
+ }
+
RETURN(rc);
}
-int lmv_check_connect(struct obd_device *obd)
+static int lmv_check_connect(struct obd_device *obd)
{
struct lmv_obd *lmv = &obd->u.lmv;
struct lmv_tgt_desc *tgt;
GOTO(out_disc, rc);
}
- class_export_put(lmv->exp);
lmv->connected = 1;
easize = lmv_mds_md_size(lmv->desc.ld_tgt_count, LMV_MAGIC);
lmv_init_ea_size(obd->obd_self_export, easize, 0);
}
}
}
- class_disconnect(lmv->exp);
+
mutex_unlock(&lmv->lmv_init_mutex);
- RETURN(rc);
+
+ RETURN(rc);
}
static int lmv_disconnect_mdc(struct obd_device *obd, struct lmv_tgt_desc *tgt)
if (!lmv->tgts)
goto out_local;
- /*
- * Only disconnect the underlying layers on the final disconnect.
- */
- lmv->refcount--;
- if (lmv->refcount != 0)
- goto out_local;
-
for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
if (lmv->tgts[i] == NULL || lmv->tgts[i]->ltd_exp == NULL)
continue;
if (!lmv->connected)
class_export_put(exp);
rc = class_disconnect(exp);
- if (lmv->refcount == 0)
- lmv->connected = 0;
- RETURN(rc);
+ lmv->connected = 0;
+
+ RETURN(rc);
}
-static int lmv_fid2path(struct obd_export *exp, int len, void *karg, void *uarg)
+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 getinfo_fid2path *gf;
struct lmv_tgt_desc *tgt;
struct getinfo_fid2path *remote_gf = NULL;
+ struct lu_fid root_fid;
int remote_gf_size = 0;
int rc;
- gf = (struct getinfo_fid2path *)karg;
+ gf = karg;
tgt = lmv_find_target(lmv, &gf->gf_fid);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
+ root_fid = *gf->gf_u.gf_root_fid;
+ LASSERT(fid_is_sane(&root_fid));
+
repeat_fid2path:
rc = obd_iocontrol(OBD_IOC_FID2PATH, tgt->ltd_exp, len, gf, uarg);
if (rc != 0 && rc != -EREMOTE)
char *ptr;
ori_gf = (struct getinfo_fid2path *)karg;
- if (strlen(ori_gf->gf_path) +
- strlen(gf->gf_path) > ori_gf->gf_pathlen)
+ if (strlen(ori_gf->gf_u.gf_path) +
+ strlen(gf->gf_u.gf_path) > ori_gf->gf_pathlen)
GOTO(out_fid2path, rc = -EOVERFLOW);
- ptr = ori_gf->gf_path;
+ ptr = ori_gf->gf_u.gf_path;
- memmove(ptr + strlen(gf->gf_path) + 1, ptr,
- strlen(ori_gf->gf_path));
+ memmove(ptr + strlen(gf->gf_u.gf_path) + 1, ptr,
+ strlen(ori_gf->gf_u.gf_path));
- strncpy(ptr, gf->gf_path, strlen(gf->gf_path));
- ptr += strlen(gf->gf_path);
+ strncpy(ptr, gf->gf_u.gf_path,
+ strlen(gf->gf_u.gf_path));
+ ptr += strlen(gf->gf_u.gf_path);
*ptr = '/';
}
- CDEBUG(D_INFO, "%s: get path %s "DFID" rec: "LPU64" ln: %u\n",
+ CDEBUG(D_INFO, "%s: get path %s "DFID" rec: %llu ln: %u\n",
tgt->ltd_exp->exp_obd->obd_name,
- gf->gf_path, PFID(&gf->gf_fid), gf->gf_recno,
+ gf->gf_u.gf_path, PFID(&gf->gf_fid), gf->gf_recno,
gf->gf_linkno);
if (rc == 0)
remote_gf->gf_fid = gf->gf_fid;
remote_gf->gf_recno = -1;
remote_gf->gf_linkno = -1;
- memset(remote_gf->gf_path, 0, remote_gf->gf_pathlen);
+ memset(remote_gf->gf_u.gf_path, 0, remote_gf->gf_pathlen);
+ *remote_gf->gf_u.gf_root_fid = root_fid;
gf = remote_gf;
goto repeat_fid2path;
/* count how many requests must be sent to the given target */
for (i = 0; i < hur->hur_request.hr_itemcount; i++) {
curr_tgt = lmv_find_target(lmv, &hur->hur_user_item[i].hui_fid);
+ if (IS_ERR(curr_tgt))
+ RETURN(PTR_ERR(curr_tgt));
if (obd_uuid_equals(&curr_tgt->ltd_uuid, &tgt_mds->ltd_uuid))
nr++;
}
return nr;
}
-static void lmv_hsm_req_build(struct lmv_obd *lmv,
+static int lmv_hsm_req_build(struct lmv_obd *lmv,
struct hsm_user_request *hur_in,
const struct lmv_tgt_desc *tgt_mds,
struct hsm_user_request *hur_out)
for (i = 0; i < hur_in->hur_request.hr_itemcount; i++) {
curr_tgt = lmv_find_target(lmv,
&hur_in->hur_user_item[i].hui_fid);
+ if (IS_ERR(curr_tgt))
+ RETURN(PTR_ERR(curr_tgt));
if (obd_uuid_equals(&curr_tgt->ltd_uuid, &tgt_mds->ltd_uuid)) {
hur_out->hur_user_item[nr_out] =
hur_in->hur_user_item[i];
hur_out->hur_request.hr_itemcount = nr_out;
memcpy(hur_data(hur_out), hur_data(hur_in),
hur_in->hur_request.hr_data_len);
+
+ RETURN(0);
}
static int lmv_hsm_ct_unregister(struct lmv_obd *lmv, unsigned int cmd, int len,
- struct lustre_kernelcomm *lk, void *uarg)
+ struct lustre_kernelcomm *lk,
+ void __user *uarg)
{
- __u32 i;
- int rc;
- struct kkuc_ct_data *kcd = NULL;
+ __u32 i;
+ int rc;
ENTRY;
/* unregister request (call from llapi_hsm_copytool_fini) */
* Unreached coordinators will get EPIPE on next requests
* and will unregister automatically.
*/
- rc = libcfs_kkuc_group_rem(lk->lk_uid, lk->lk_group, (void **)&kcd);
- if (kcd != NULL)
- OBD_FREE_PTR(kcd);
+ rc = libcfs_kkuc_group_rem(lk->lk_uid, lk->lk_group);
RETURN(rc);
}
static int lmv_hsm_ct_register(struct lmv_obd *lmv, unsigned int cmd, int len,
- struct lustre_kernelcomm *lk, void *uarg)
+ struct lustre_kernelcomm *lk, __user void *uarg)
{
struct file *filp;
__u32 i, j;
int err, rc;
bool any_set = false;
- struct kkuc_ct_data *kcd;
+ struct kkuc_ct_data kcd = { 0 };
ENTRY;
/* All or nothing: try to register to all MDS.
/* permanent error */
CERROR("%s: iocontrol MDC %s on MDT"
" idx %d cmd %x: err = %d\n",
- class_exp2obd(lmv->exp)->obd_name,
+ lmv2obd_dev(lmv)->obd_name,
tgt->ltd_uuid.uuid, i, cmd, err);
rc = err;
lk->lk_flags |= LK_FLG_STOP;
if (filp == NULL)
RETURN(-EBADF);
- OBD_ALLOC_PTR(kcd);
- if (kcd == NULL) {
- fput(filp);
- RETURN(-ENOMEM);
- }
- kcd->kcd_magic = KKUC_CT_DATA_MAGIC;
- kcd->kcd_uuid = lmv->cluuid;
- kcd->kcd_archive = lk->lk_data;
+ kcd.kcd_magic = KKUC_CT_DATA_MAGIC;
+ kcd.kcd_uuid = lmv->cluuid;
+ kcd.kcd_archive = lk->lk_data;
- rc = libcfs_kkuc_group_add(filp, lk->lk_uid, lk->lk_group, kcd);
- if (rc != 0) {
- if (filp != NULL)
- fput(filp);
- OBD_FREE_PTR(kcd);
- }
+ rc = libcfs_kkuc_group_add(filp, lk->lk_uid, lk->lk_group,
+ &kcd, sizeof(kcd));
+ if (rc != 0)
+ fput(filp);
RETURN(rc);
}
static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp,
- int len, void *karg, void *uarg)
+ int len, void *karg, void __user *uarg)
{
struct obd_device *obddev = class_exp2obd(exp);
struct lmv_obd *lmv = &obddev->u.lmv;
} else {
/* split fid list to their respective MDS */
for (i = 0; i < count; i++) {
- unsigned int nr, reqlen;
- int rc1;
+ int nr, rc1;
+ size_t reqlen;
struct hsm_user_request *req;
tgt = lmv->tgts[i];
continue;
nr = lmv_hsm_req_count(lmv, hur, tgt);
+ if (nr < 0)
+ RETURN(nr);
if (nr == 0) /* nothing for this MDS */
continue;
OBD_ALLOC_LARGE(req, reqlen);
if (req == NULL)
RETURN(-ENOMEM);
-
- lmv_hsm_req_build(lmv, hur, tgt, req);
-
+ rc1 = lmv_hsm_req_build(lmv, hur, tgt, req);
+ if (rc1 < 0)
+ GOTO(hsm_req_err, rc1);
rc1 = obd_iocontrol(cmd, tgt->ltd_exp, reqlen,
req, uarg);
+hsm_req_err:
if (rc1 != 0 && rc == 0)
rc = rc1;
OBD_FREE_LARGE(req, reqlen);
RETURN(rc);
}
-#if 0
-static int lmv_all_chars_policy(int count, const char *name,
- int len)
-{
- unsigned int c = 0;
-
- while (len > 0)
- c += name[--len];
- c = c % count;
- return c;
-}
-
-static int lmv_nid_policy(struct lmv_obd *lmv)
-{
- struct obd_import *imp;
- __u32 id;
-
- /*
- * XXX: To get nid we assume that underlying obd device is mdc.
- */
- imp = class_exp2cliimp(lmv->tgts[0].ltd_exp);
- id = imp->imp_connection->c_self ^ (imp->imp_connection->c_self >> 32);
- return id % lmv->desc.ld_tgt_count;
-}
-
-static int lmv_choose_mds(struct lmv_obd *lmv, struct md_op_data *op_data,
- placement_policy_t placement)
-{
- switch (placement) {
- case PLACEMENT_CHAR_POLICY:
- return lmv_all_chars_policy(lmv->desc.ld_tgt_count,
- op_data->op_name,
- op_data->op_namelen);
- case PLACEMENT_NID_POLICY:
- return lmv_nid_policy(lmv);
-
- default:
- break;
- }
-
- CERROR("Unsupported placement policy %x\n", placement);
- return -EINVAL;
-}
-#endif
-
/**
* 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)
{
- struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lmv_user_md *lum;
+
ENTRY;
LASSERT(mds != NULL);
RETURN(0);
}
- if (op_data->op_default_stripe_offset != -1) {
+ 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_mds()). */
+ if (op_data->op_cli_flags & CLI_SET_MEA && lum != NULL &&
+ 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;
- RETURN(0);
- }
-
- /**
- * If stripe_offset is provided during setdirstripe
- * (setdirstripe -i xx), xx MDS will be choosen.
- */
- if (op_data->op_cli_flags & CLI_SET_MEA && op_data->op_data != NULL) {
- struct lmv_user_md *lum;
-
- lum = op_data->op_data;
-
- if (le32_to_cpu(lum->lum_stripe_offset) != (__u32)-1) {
- *mds = le32_to_cpu(lum->lum_stripe_offset);
- } else {
- /* -1 means default, which will be in the same MDT with
- * the stripe */
- *mds = op_data->op_mds;
- lum->lum_stripe_offset = cpu_to_le32(op_data->op_mds);
- }
+ op_data->op_mds = *mds;
+ /* Correct the stripe offset in lum */
+ if (lum != NULL)
+ lum->lum_stripe_offset = cpu_to_le32(*mds);
} else {
- /* Allocate new fid on target according to operation type and
- * parent home mds. */
*mds = op_data->op_mds;
}
lmv->desc.ld_active_tgt_count = 0;
lmv->max_def_easize = 0;
lmv->max_easize = 0;
- lmv->lmv_placement = PLACEMENT_CHAR_POLICY;
spin_lock_init(&lmv->lmv_lock);
mutex_init(&lmv->lmv_init_mutex);
__u32 i;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
OBD_ALLOC(temp, sizeof(*temp));
if (temp == NULL)
RETURN(-ENOMEM);
return rc;
}
-static int lmv_getstatus(struct obd_export *exp,
- struct lu_fid *fid,
- struct obd_capa **pc)
+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;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
- rc = md_getstatus(lmv->tgts[0]->ltd_exp, fid, pc);
+ rc = md_get_root(lmv->tgts[0]->ltd_exp, fileset, fid);
RETURN(rc);
}
static int lmv_getxattr(struct obd_export *exp, const struct lu_fid *fid,
- struct obd_capa *oc, u64 valid, const char *name,
+ u64 valid, const char *name,
const char *input, int input_size, int output_size,
int flags, struct ptlrpc_request **request)
{
int rc;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
tgt = lmv_find_target(lmv, fid);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
- rc = md_getxattr(tgt->ltd_exp, fid, oc, valid, name, input,
- input_size, output_size, flags, request);
+ rc = md_getxattr(tgt->ltd_exp, fid, valid, name, input,
+ input_size, output_size, flags, request);
- RETURN(rc);
+ RETURN(rc);
}
static int lmv_setxattr(struct obd_export *exp, const struct lu_fid *fid,
- struct obd_capa *oc, u64 valid, const char *name,
+ u64 valid, const char *name,
const char *input, int input_size, int output_size,
int flags, __u32 suppgid,
struct ptlrpc_request **request)
int rc;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
tgt = lmv_find_target(lmv, fid);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
- rc = md_setxattr(tgt->ltd_exp, fid, oc, valid, name, input,
- input_size, output_size, flags, suppgid,
- request);
+ rc = md_setxattr(tgt->ltd_exp, fid, valid, name, input,
+ input_size, output_size, flags, suppgid,
+ request);
- RETURN(rc);
+ RETURN(rc);
}
static int lmv_getattr(struct obd_export *exp, struct md_op_data *op_data,
int rc;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
tgt = lmv_find_target(lmv, &op_data->op_fid1);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
__u32 i;
- int rc;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
CDEBUG(D_INODE, "CBDATA for "DFID"\n", PFID(fid));
/*
RETURN(0);
}
-static int lmv_find_cbdata(struct obd_export *exp, const struct lu_fid *fid,
- ldlm_iterator_t it, void *data)
-{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- int i;
- int tgt;
- int rc;
- ENTRY;
-
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
- 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. 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 (lmv->tgts[tgt] == NULL ||
- lmv->tgts[tgt]->ltd_exp == NULL)
- continue;
-
- rc = md_find_cbdata(lmv->tgts[tgt]->ltd_exp, fid, it, data);
- if (rc)
- RETURN(rc);
- }
-
- RETURN(rc);
-}
-
-
static int lmv_close(struct obd_export *exp, struct md_op_data *op_data,
struct md_open_data *mod, struct ptlrpc_request **request)
{
int rc;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
tgt = lmv_find_target(lmv, &op_data->op_fid1);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
* 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 && lsm != NULL) {
+ (int)op_data->op_mds != -1) {
int i;
tgt = lmv_get_target(lmv, op_data->op_mds, NULL);
if (IS_ERR(tgt))
return tgt;
- /* refill the right parent fid */
- for (i = 0; i < lsm->lsm_md_stripe_count; i++) {
- struct lmv_oinfo *oinfo;
+ if (lsm != NULL) {
+ /* refill the right parent fid */
+ for (i = 0; i < lsm->lsm_md_stripe_count; i++) {
+ struct lmv_oinfo *oinfo;
- oinfo = &lsm->lsm_md_oinfo[i];
- if (oinfo->lmo_mds == op_data->op_mds) {
- *fid = oinfo->lmo_fid;
- break;
+ oinfo = &lsm->lsm_md_oinfo[i];
+ if (oinfo->lmo_mds == op_data->op_mds) {
+ *fid = oinfo->lmo_fid;
+ break;
+ }
}
- }
- /* Hmm, can not find the stripe by mdt_index(op_mds) */
- if (i == lsm->lsm_md_stripe_count)
- tgt = ERR_PTR(-EINVAL);
+ if (i == lsm->lsm_md_stripe_count)
+ *fid = lsm->lsm_md_oinfo[0].lmo_fid;
+ }
return tgt;
}
int rc;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
if (!lmv->desc.ld_active_tgt_count)
RETURN(-EIO);
static int
lmv_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
- const union ldlm_policy_data *policy,
- struct lookup_intent *it, struct md_op_data *op_data,
+ 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;
int rc;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
- CDEBUG(D_INODE, "ENQUEUE '%s' on "DFID"\n",
- LL_IT2STR(it), PFID(&op_data->op_fid1));
+ CDEBUG(D_INODE, "ENQUEUE on "DFID"\n", PFID(&op_data->op_fid1));
tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
- CDEBUG(D_INODE, "ENQUEUE '%s' on "DFID" -> mds #%u\n",
- LL_IT2STR(it), PFID(&op_data->op_fid1), tgt->ltd_idx);
+ CDEBUG(D_INODE, "ENQUEUE on "DFID" -> mds #%u\n",
+ PFID(&op_data->op_fid1), tgt->ltd_idx);
- rc = md_enqueue(tgt->ltd_exp, einfo, policy, it, op_data, lockh,
+ rc = md_enqueue(tgt->ltd_exp, einfo, policy, op_data, lockh,
extra_lock_flags);
RETURN(rc);
int rc;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
NULL)
static int lmv_early_cancel(struct obd_export *exp, struct lmv_tgt_desc *tgt,
- struct md_op_data *op_data,
- __u32 op_tgt, ldlm_mode_t mode, int bits, int flag)
-{
- struct lu_fid *fid = md_op_data_fid(op_data, flag);
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- ldlm_policy_data_t policy = {{ 0 }};
- int rc = 0;
+ struct md_op_data *op_data, __u32 op_tgt,
+ enum ldlm_mode mode, int bits, int flag)
+{
+ struct lu_fid *fid = md_op_data_fid(op_data, flag);
+ struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
+ union ldlm_policy_data policy = { { 0 } };
+ int rc = 0;
ENTRY;
if (!fid_is_sane(fid))
int rc;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
LASSERT(op_data->op_namelen != 0);
CDEBUG(D_INODE, "LINK "DFID":%*s to "DFID"\n",
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
struct lmv_tgt_desc *src_tgt;
+ struct lmv_tgt_desc *tgt_tgt;
+ struct obd_export *target_exp;
+ struct mdt_body *body;
int rc;
ENTRY;
(int)newlen, new, PFID(&op_data->op_fid2),
op_data->op_mea2 ? op_data->op_mea2->lsm_md_stripe_count : 0);
- rc = lmv_check_connect(obd);
- if (rc)
- 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();
RETURN(rc);
src_tgt = lmv_find_target(lmv, &op_data->op_fid3);
+ if (IS_ERR(src_tgt))
+ RETURN(PTR_ERR(src_tgt));
+
+ target_exp = src_tgt->ltd_exp;
} else {
if (op_data->op_mea1 != NULL) {
struct lmv_stripe_md *lsm = op_data->op_mea1;
oldlen,
&op_data->op_fid1,
&op_data->op_mds);
- if (IS_ERR(src_tgt))
- RETURN(PTR_ERR(src_tgt));
} else {
src_tgt = lmv_find_target(lmv, &op_data->op_fid1);
- if (IS_ERR(src_tgt))
- RETURN(PTR_ERR(src_tgt));
-
- op_data->op_mds = src_tgt->ltd_idx;
}
+ if (IS_ERR(src_tgt))
+ RETURN(PTR_ERR(src_tgt));
+
- if (op_data->op_mea2) {
+ if (op_data->op_mea2 != NULL) {
struct lmv_stripe_md *lsm = op_data->op_mea2;
- const struct lmv_oinfo *oinfo;
- oinfo = lsm_name_to_stripe_info(lsm, new, newlen);
- if (IS_ERR(oinfo))
- RETURN(PTR_ERR(oinfo));
+ tgt_tgt = lmv_locate_target_for_name(lmv, lsm, new,
+ newlen,
+ &op_data->op_fid2,
+ &op_data->op_mds);
+ } else {
+ tgt_tgt = lmv_find_target(lmv, &op_data->op_fid2);
- op_data->op_fid2 = oinfo->lmo_fid;
}
+ if (IS_ERR(tgt_tgt))
+ RETURN(PTR_ERR(tgt_tgt));
+
+ target_exp = tgt_tgt->ltd_exp;
}
- if (IS_ERR(src_tgt))
- RETURN(PTR_ERR(src_tgt));
/*
* LOOKUP lock on src child (fid3) should also be cancelled for
RETURN(rc);
}
+retry_rename:
/*
* Cancel all the locks on tgt child (fid4).
*/
- if (fid_is_sane(&op_data->op_fid4))
+ if (fid_is_sane(&op_data->op_fid4)) {
+ struct lmv_tgt_desc *tgt;
+
rc = lmv_early_cancel(exp, NULL, op_data, src_tgt->ltd_idx,
LCK_EX, MDS_INODELOCK_FULL,
MF_MDC_CANCEL_FID4);
+ if (rc != 0)
+ RETURN(rc);
- CDEBUG(D_INODE, DFID":m%d to "DFID"\n", PFID(&op_data->op_fid1),
- op_data->op_mds, PFID(&op_data->op_fid2));
+ tgt = lmv_find_target(lmv, &op_data->op_fid4);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
+
+ /* Since the target child might be destroyed, and it might
+ * become 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_exp = tgt->ltd_exp;
+ }
- rc = md_rename(src_tgt->ltd_exp, op_data, old, oldlen, new, newlen,
+ rc = md_rename(target_exp, op_data, old, oldlen, new, newlen,
request);
- RETURN(rc);
+ if (rc != 0 && rc != -EXDEV)
+ RETURN(rc);
+
+ body = req_capsule_server_get(&(*request)->rq_pill, &RMF_MDT_BODY);
+ if (body == NULL)
+ RETURN(-EPROTO);
+
+ /* Not cross-ref case, just get out of here. */
+ if (likely(!(body->mbo_valid & OBD_MD_MDS)))
+ RETURN(rc);
+
+ CDEBUG(D_INODE, "%s: try rename to another MDT for "DFID"\n",
+ exp->exp_obd->obd_name, PFID(&body->mbo_fid1));
+
+ op_data->op_fid4 = body->mbo_fid1;
+ ptlrpc_req_finished(*request);
+ *request = NULL;
+ goto retry_rename;
}
static int lmv_setattr(struct obd_export *exp, struct md_op_data *op_data,
int rc = 0;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
CDEBUG(D_INODE, "SETATTR for "DFID", valid 0x%x\n",
PFID(&op_data->op_fid1), op_data->op_attr.ia_valid);
}
static int lmv_fsync(struct obd_export *exp, const struct lu_fid *fid,
- struct obd_capa *oc, struct ptlrpc_request **request)
+ struct ptlrpc_request **request)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
int rc;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc != 0)
- RETURN(rc);
-
tgt = lmv_find_target(lmv, fid);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
- rc = md_fsync(tgt->ltd_exp, fid, oc, request);
+ rc = md_fsync(tgt->ltd_exp, fid, request);
RETURN(rc);
}
stripe_hash = le64_to_cpu(dp->ldp_hash_end);
kunmap(page);
- page_cache_release(page);
+ put_page(page);
page = NULL;
/* reach the end of current stripe, go to next stripe */
le64_to_cpu(ent->lde_hash)) {
min_ent = ent;
kunmap(min_page);
- page_cache_release(min_page);
+ put_page(min_page);
min_idx = i;
min_page = page;
} else {
kunmap(page);
- page_cache_release(page);
+ put_page(page);
page = NULL;
}
} else {
out:
if (*ppage != NULL) {
kunmap(*ppage);
- page_cache_release(*ppage);
+ put_page(*ppage);
}
*stripe_offset = min_idx;
*entp = min_ent;
struct md_callback *cb_op,
__u64 offset, struct page **ppage)
{
- struct obd_device *obd = exp->exp_obd;
struct lu_fid master_fid = op_data->op_fid1;
struct inode *master_inode = op_data->op_data;
__u64 hash_offset = offset;
int rc;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
/* Allocate a page and read entries from all of stripes and fill
* the page by hash order */
ent_page = alloc_page(GFP_KERNEL);
dp->ldp_flags |= LDF_COLLIDE;
area = dp + 1;
- left_bytes = PAGE_CACHE_SIZE - sizeof(*dp);
+ left_bytes = PAGE_SIZE - sizeof(*dp);
ent = area;
last_ent = ent;
do {
out:
if (min_ent_page != NULL) {
kunmap(min_ent_page);
- page_cache_release(min_ent_page);
+ put_page(min_ent_page);
}
if (unlikely(rc != 0)) {
int rc;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc != 0)
- RETURN(rc);
-
if (unlikely(lsm != NULL)) {
rc = lmv_read_striped_page(exp, op_data, cb_op, offset, ppage);
RETURN(rc);
struct lmv_stripe_md *lsm = op_data->op_mea1;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
retry_unlink:
/* For striped dir, we need to locate the parent as well */
if (lsm != NULL) {
goto retry_unlink;
}
-static int lmv_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
+static int lmv_precleanup(struct obd_device *obd)
{
- struct lmv_obd *lmv = &obd->u.lmv;
- int rc = 0;
-
- switch (stage) {
- case OBD_CLEANUP_EARLY:
- /* XXX: here should be calling obd_precleanup() down to
- * stack. */
- break;
- case OBD_CLEANUP_EXPORTS:
- fld_client_proc_fini(&lmv->lmv_fld);
- lprocfs_obd_cleanup(obd);
- lprocfs_free_md_stats(obd);
- break;
- default:
- break;
- }
- RETURN(rc);
+ ENTRY;
+ fld_client_proc_fini(&obd->u.lmv.lmv_fld);
+ lprocfs_obd_cleanup(obd);
+ lprocfs_free_md_stats(obd);
+ RETURN(0);
}
/**
obd = class_exp2obd(exp);
if (obd == NULL) {
- CDEBUG(D_IOCTL, "Invalid client cookie "LPX64"\n",
+ CDEBUG(D_IOCTL, "Invalid client cookie %#llx\n",
exp->exp_handle.h_cookie);
RETURN(-EINVAL);
}
if (keylen >= strlen("remote_flag") && !strcmp(key, "remote_flag")) {
int i;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
LASSERT(*vallen == sizeof(__u32));
for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
struct lmv_tgt_desc *tgt = lmv->tgts[i];
} else if (KEY_IS(KEY_MAX_EASIZE) ||
KEY_IS(KEY_DEFAULT_EASIZE) ||
KEY_IS(KEY_CONN_DATA)) {
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
/*
* Forwarding this request to first MDS, it should know LOV
* desc.
obd = class_exp2obd(exp);
if (obd == NULL) {
- CDEBUG(D_IOCTL, "Invalid client cookie "LPX64"\n",
+ CDEBUG(D_IOCTL, "Invalid client cookie %#llx\n",
exp->exp_handle.h_cookie);
RETURN(-EINVAL);
}
RETURN(-EINVAL);
}
-static int lmv_pack_md_v1(const struct lmv_stripe_md *lsm,
- struct lmv_mds_md_v1 *lmm1)
-{
- int cplen;
- int i;
-
- lmm1->lmv_magic = cpu_to_le32(lsm->lsm_md_magic);
- lmm1->lmv_stripe_count = cpu_to_le32(lsm->lsm_md_stripe_count);
- lmm1->lmv_master_mdt_index = cpu_to_le32(lsm->lsm_md_master_mdt_index);
- lmm1->lmv_hash_type = cpu_to_le32(lsm->lsm_md_hash_type);
- cplen = strlcpy(lmm1->lmv_pool_name, lsm->lsm_md_pool_name,
- sizeof(lmm1->lmv_pool_name));
- if (cplen >= sizeof(lmm1->lmv_pool_name))
- return -E2BIG;
-
- for (i = 0; i < lsm->lsm_md_stripe_count; i++)
- fid_cpu_to_le(&lmm1->lmv_stripe_fids[i],
- &lsm->lsm_md_oinfo[i].lmo_fid);
- return 0;
-}
-
-int lmv_pack_md(union lmv_mds_md **lmmp, const struct lmv_stripe_md *lsm,
- int stripe_count)
-{
- int lmm_size = 0;
- bool allocated = false;
- int rc = 0;
- ENTRY;
-
- LASSERT(lmmp != NULL);
- /* Free lmm */
- if (*lmmp != NULL && lsm == NULL) {
- int stripe_count;
-
- stripe_count = lmv_mds_md_stripe_count_get(*lmmp);
- lmm_size = lmv_mds_md_size(stripe_count,
- le32_to_cpu((*lmmp)->lmv_magic));
- if (lmm_size == 0)
- RETURN(-EINVAL);
- OBD_FREE(*lmmp, lmm_size);
- *lmmp = NULL;
- RETURN(0);
- }
-
- /* Alloc lmm */
- if (*lmmp == NULL && lsm == NULL) {
- lmm_size = lmv_mds_md_size(stripe_count, LMV_MAGIC);
- LASSERT(lmm_size > 0);
- OBD_ALLOC(*lmmp, lmm_size);
- if (*lmmp == NULL)
- RETURN(-ENOMEM);
- lmv_mds_md_stripe_count_set(*lmmp, stripe_count);
- (*lmmp)->lmv_magic = cpu_to_le32(LMV_MAGIC);
- RETURN(lmm_size);
- }
-
- /* pack lmm */
- LASSERT(lsm != NULL);
- lmm_size = lmv_mds_md_size(lsm->lsm_md_stripe_count, lsm->lsm_md_magic);
- if (*lmmp == NULL) {
- OBD_ALLOC(*lmmp, lmm_size);
- if (*lmmp == NULL)
- RETURN(-ENOMEM);
- allocated = true;
- }
-
- switch (lsm->lsm_md_magic) {
- case LMV_MAGIC_V1:
- rc = lmv_pack_md_v1(lsm, &(*lmmp)->lmv_md_v1);
- break;
- default:
- rc = -EINVAL;
- break;
- }
-
- if (rc != 0 && allocated) {
- OBD_FREE(*lmmp, lmm_size);
- *lmmp = NULL;
- }
-
- RETURN(lmm_size);
-}
-
static int lmv_unpack_md_v1(struct obd_export *exp, struct lmv_stripe_md *lsm,
const struct lmv_mds_md_v1 *lmm1)
{
RETURN(rc);
}
-int lmv_unpack_md(struct obd_export *exp, struct lmv_stripe_md **lsmp,
- const union lmv_mds_md *lmm, int stripe_count)
+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_md *lsm;
int lsm_size;
RETURN(0);
}
- /* Alloc memmd */
- if (lsm == NULL && lmm == NULL) {
- lsm_size = lmv_stripe_md_size(stripe_count);
- OBD_ALLOC(lsm, lsm_size);
- if (lsm == NULL)
- RETURN(-ENOMEM);
- lsm->lsm_md_stripe_count = stripe_count;
- *lsmp = lsm;
- RETURN(0);
- }
-
if (le32_to_cpu(lmm->lmv_magic) == LMV_MAGIC_STRIPE)
RETURN(-EPERM);
RETURN(lsm_size);
}
-int lmv_alloc_memmd(struct lmv_stripe_md **lsmp, int stripes)
-{
- return lmv_unpack_md(NULL, lsmp, NULL, stripes);
-}
-
void lmv_free_memmd(struct lmv_stripe_md *lsm)
{
- lmv_unpack_md(NULL, &lsm, NULL, 0);
+ lmv_unpackmd(NULL, &lsm, NULL, 0);
}
EXPORT_SYMBOL(lmv_free_memmd);
-int lmv_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
- struct lov_mds_md *lmm, int disk_len)
-{
- return lmv_unpack_md(exp, (struct lmv_stripe_md **)lsmp,
- (union lmv_mds_md *)lmm, disk_len);
-}
-
-int lmv_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
- struct lov_stripe_md *lsm)
-{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv_obd = &obd->u.lmv;
- const struct lmv_stripe_md *lmv = (struct lmv_stripe_md *)lsm;
- int stripe_count;
-
- if (lmmp == NULL) {
- if (lsm != NULL)
- stripe_count = lmv->lsm_md_stripe_count;
- else
- stripe_count = lmv_obd->desc.ld_tgt_count;
-
- return lmv_mds_md_size(stripe_count, LMV_MAGIC_V1);
- }
-
- return lmv_pack_md((union lmv_mds_md **)lmmp, lmv, 0);
-}
-
static int lmv_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
- ldlm_policy_data_t *policy, ldlm_mode_t mode,
- ldlm_cancel_flags_t flags, void *opaque)
+ union ldlm_policy_data *policy,
+ enum ldlm_mode mode, enum ldlm_cancel_flags flags,
+ void *opaque)
{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- int rc = 0;
- int err;
- __u32 i;
- ENTRY;
+ struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
+ int rc = 0;
+ __u32 i;
+ ENTRY;
- LASSERT(fid != NULL);
+ 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)
continue;
RETURN(rc);
}
-int lmv_set_lock_data(struct obd_export *exp, __u64 *lockh, void *data,
- __u64 *bits)
+static int lmv_set_lock_data(struct obd_export *exp,
+ 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];
RETURN(rc);
}
-ldlm_mode_t lmv_lock_match(struct obd_export *exp, __u64 flags,
- const struct lu_fid *fid, ldlm_type_t type,
- ldlm_policy_data_t *policy, ldlm_mode_t mode,
- struct lustre_handle *lockh)
+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;
- ldlm_mode_t rc;
+ enum ldlm_mode rc;
int tgt;
int i;
ENTRY;
RETURN(md_clear_open_replay_data(tgt->ltd_exp, och));
}
-static int lmv_get_remote_perm(struct obd_export *exp,
- const struct lu_fid *fid,
- struct obd_capa *oc, __u32 suppgid,
- 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;
-
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
- tgt = lmv_find_target(lmv, fid);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
-
- rc = md_get_remote_perm(tgt->ltd_exp, fid, oc, suppgid, request);
- RETURN(rc);
-}
-
-static int lmv_renew_capa(struct obd_export *exp, struct obd_capa *oc,
- renew_capa_cb_t cb)
-{
- struct obd_device *obd = exp->exp_obd;
- struct lmv_obd *lmv = &obd->u.lmv;
- struct lmv_tgt_desc *tgt;
- int rc;
- ENTRY;
-
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
- tgt = lmv_find_target(lmv, &oc->c_capa.lc_fid);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
-
- rc = md_renew_capa(tgt->ltd_exp, oc, cb);
- RETURN(rc);
-}
-
-int lmv_unpack_capa(struct obd_export *exp, struct ptlrpc_request *req,
- const struct req_msg_field *field, struct obd_capa **oc)
-{
- struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
- struct lmv_tgt_desc *tgt = lmv->tgts[0];
-
- if (tgt == NULL || tgt->ltd_exp == NULL)
- RETURN(-EINVAL);
- return md_unpack_capa(tgt->ltd_exp, req, field, oc);
-}
-
int lmv_intent_getattr_async(struct obd_export *exp,
- struct md_enqueue_info *minfo,
- struct ldlm_enqueue_info *einfo)
+ 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 = NULL;
+ struct lmv_tgt_desc *ctgt = NULL;
int rc;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
+ if (!fid_is_sane(&op_data->op_fid2))
+ RETURN(-EINVAL);
- tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ ptgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
+ if (IS_ERR(ptgt))
+ RETURN(PTR_ERR(ptgt));
+
+ ctgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid2);
+ if (IS_ERR(ctgt))
+ RETURN(PTR_ERR(ctgt));
- rc = md_intent_getattr_async(tgt->ltd_exp, minfo, einfo);
+ /*
+ * if child is on remote MDT, we need 2 async RPCs to fetch both LOOKUP
+ * lock on parent, and UPDATE lock on child MDT, which makes all
+ * complicated. Considering remote dir is rare case, and not supporting
+ * it in statahead won't cause any issue, drop its support for now.
+ */
+ if (ptgt != ctgt)
+ RETURN(-ENOTSUPP);
+
+ rc = md_intent_getattr_async(ptgt->ltd_exp, minfo);
RETURN(rc);
}
int rc;
ENTRY;
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
-
tgt = lmv_find_target(lmv, fid);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
.o_statfs = lmv_statfs,
.o_get_info = lmv_get_info,
.o_set_info_async = lmv_set_info_async,
- .o_packmd = lmv_packmd,
- .o_unpackmd = lmv_unpackmd,
.o_notify = lmv_notify,
.o_get_uuid = lmv_get_uuid,
.o_iocontrol = lmv_iocontrol,
};
struct md_ops lmv_md_ops = {
- .m_getstatus = lmv_getstatus,
+ .m_get_root = lmv_get_root,
.m_null_inode = lmv_null_inode,
- .m_find_cbdata = lmv_find_cbdata,
.m_close = lmv_close,
.m_create = lmv_create,
.m_enqueue = lmv_enqueue,
.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_renew_capa = lmv_renew_capa,
- .m_unpack_capa = lmv_unpack_capa,
- .m_get_remote_perm = lmv_get_remote_perm,
.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,
};
-int __init lmv_init(void)
+static int __init lmv_init(void)
{
return class_register_type(&lmv_obd_ops, &lmv_md_ops, true, NULL,
LUSTRE_LMV_NAME, NULL);
}
-static void lmv_exit(void)
+static void __exit lmv_exit(void)
{
- class_unregister_type(LUSTRE_LMV_NAME);
+ class_unregister_type(LUSTRE_LMV_NAME);
}
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre Logical Metadata Volume OBD driver");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
+MODULE_DESCRIPTION("Lustre Logical Metadata Volume");
+MODULE_VERSION(LUSTRE_VERSION_STRING);
MODULE_LICENSE("GPL");
module_init(lmv_init);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff