/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
+ * Copyright (c) 2002 Cluster File Systems, Inc. <info@clusterfs.com>
*
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
+ * This file is part of Lustre, http://www.lustre.org.
+ *
+ * Lustre is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * Lustre is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Lustre; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define DEBUG_SUBSYSTEM S_COBD
+#include <linux/version.h>
+#include <linux/init.h>
#include <linux/obd_support.h>
#include <linux/lustre_lib.h>
#include <linux/lustre_net.h>
#include <linux/lustre_idl.h>
+#include <linux/lustre_log.h>
+#include <linux/lustre_mds.h>
#include <linux/obd_class.h>
#include <linux/obd_cache.h>
+#include <linux/obd_lmv.h>
+#include <linux/obd_lov.h>
-extern struct lprocfs_vars status_var_nm_1[];
-extern struct lprocfs_vars status_class_var[];
-
-static int
-cobd_attach (struct obd_device *dev, obd_count len, void *data)
+static int cobd_attach(struct obd_device *obd,
+ obd_count len, void *buf)
{
- return (lprocfs_reg_obd (dev, status_var_nm_1, dev));
+ struct lprocfs_static_vars lvars;
+ int rc = 0;
+ ENTRY;
+
+ lprocfs_init_vars(cobd, &lvars);
+ rc = lprocfs_obd_attach(obd, lvars.obd_vars);
+
+ RETURN(rc);
}
-static int
-cobd_detach (struct obd_device *dev)
+static int cobd_detach(struct obd_device *obd)
{
- return (lprocfs_dereg_obd (dev));
+ ENTRY;
+ RETURN(lprocfs_obd_detach(obd));
}
-static int
-cobd_setup (struct obd_device *dev, obd_count len, void *buf)
+static int cobd_setup(struct obd_device *obd, obd_count len, void *buf)
{
- struct obd_ioctl_data *data = (struct obd_ioctl_data *)buf;
- struct cache_obd *cobd = &dev->u.cobd;
- struct obd_device *target;
- struct obd_device *cache;
- int rc;
+ struct lustre_cfg *lcfg = (struct lustre_cfg *)buf;
+ int inst_len = 0, mname_len = 0, cname_len = 0;
+ struct obd_device *master_obd, *cache_obd;
+ struct cache_obd *cobd = &obd->u.cobd;
+ struct lustre_handle conn = { 0 };
+ int rc = 0;
+ ENTRY;
+
+ sema_init(&cobd->sem, 1);
+
+ if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1 ||
+ lustre_cfg_buf(lcfg, 1) == NULL) {
+ CERROR("%s: setup requires master device name\n",
+ obd->obd_name);
+ RETURN(-EINVAL);
+ }
+
+ if (LUSTRE_CFG_BUFLEN(lcfg, 2) < 1 ||
+ lustre_cfg_buf(lcfg, 2) == NULL) {
+ CERROR("%s: setup requires cache device name\n",
+ obd->obd_name);
+ RETURN(-EINVAL);
+ }
+ inst_len = LUSTRE_CFG_BUFLEN(lcfg, 3);
- if (data->ioc_inlbuf1 == NULL ||
- data->ioc_inlbuf2 == NULL)
- return (-EINVAL);
+ if (inst_len) {
+ LASSERT(lustre_cfg_buf(lcfg, 3) != NULL);
+ mname_len = LUSTRE_CFG_BUFLEN(lcfg, 1) + inst_len;
+ cname_len = LUSTRE_CFG_BUFLEN(lcfg, 2) + inst_len;
+ } else {
+ mname_len = LUSTRE_CFG_BUFLEN(lcfg, 1);
+ cname_len = LUSTRE_CFG_BUFLEN(lcfg, 2);
+ }
+
+ /* get the cache obd name and master name */
+ OBD_ALLOC(cobd->master_name, mname_len);
+ if (!cobd->master_name)
+ RETURN(-ENOMEM);
+ if(inst_len)
+ sprintf(cobd->master_name, "%s-%s", lustre_cfg_string(lcfg, 1),
+ lustre_cfg_string(lcfg, 3));
+ else
+ sprintf(cobd->master_name, "%s", lustre_cfg_string(lcfg, 1));
- target = class_uuid2obd (data->ioc_inlbuf1);
- cache = class_uuid2obd (data->ioc_inlbuf2);
- if (target == NULL ||
- cache == NULL)
- return (-EINVAL);
+ OBD_ALLOC(cobd->cache_name, cname_len);
+ if (!cobd->cache_name) {
+ OBD_FREE(cobd->master_name, mname_len);
+ RETURN(-ENOMEM);
+ }
+ if (inst_len)
+ sprintf(cobd->cache_name, "%s-%s", lustre_cfg_string(lcfg, 2),
+ lustre_cfg_string(lcfg, 3));
+ else
+ sprintf(cobd->cache_name, "%s", lustre_cfg_string(lcfg, 2));
+
+ CDEBUG(D_INFO, "master name %s cache name %s\n", cobd->master_name,
+ cobd->cache_name);
- /* don't bother checking attached/setup;
- * obd_connect() should, and it can change underneath us */
+ /* getting master obd */
+ master_obd = class_name2obd(cobd->master_name);
+ if (!master_obd) {
+ CERROR("can't find master obd by name %s\n",
+ cobd->master_name);
+ GOTO(put_names, rc = -EINVAL);
+ }
- rc = obd_connect (&cobd->cobd_target, target, NULL, NULL, NULL);
- if (rc != 0)
- return (rc);
+ /* connecting master */
+ memset(&conn, 0, sizeof(conn));
+ rc = class_connect(&conn, master_obd, &obd->obd_uuid);
+ if (rc)
+ GOTO(put_names, rc);
+
+ cobd->master_exp = class_conn2export(&conn);
- rc = obd_connect (&cobd->cobd_cache, cache, NULL, NULL, NULL);
- if (rc != 0)
- goto fail_0;
+ /* getting cache obd */
+ cache_obd = class_name2obd(cobd->cache_name);
+ if (!cache_obd) {
+ class_disconnect(cobd->master_exp, 0);
+ CERROR("can't find cache obd by name %s\n",
+ cobd->cache_name);
+ GOTO(put_names, rc = -EINVAL);
+ }
- return (0);
+ /* connecting cache */
+ memset(&conn, 0, sizeof(conn));
+ rc = class_connect(&conn, cache_obd, &obd->obd_uuid);
+ if (rc) {
+ class_disconnect(cobd->master_exp, 0);
+ GOTO(put_names, rc);
+ }
+ cobd->cache_exp = class_conn2export(&conn);
+
+ /* default set cache on, but nothing is realy connected yet, will be
+ * done in cobd_connect() time. */
+ cobd->cache_on = 1;
- fail_0:
- obd_disconnect (&cobd->cobd_target);
- return (rc);
+ /* nothing is connected, make exports reflect this state to not confuse
+ * cobd_switch() later. */
+ cobd->cache_real_exp = NULL;
+ cobd->master_real_exp = NULL;
+
+ EXIT;
+put_names:
+ if (rc) {
+ if (cobd->master_name) {
+ OBD_FREE(cobd->master_name, LUSTRE_CFG_BUFLEN(lcfg, 1));
+ cobd->master_name = NULL;
+ }
+ if (cobd->cache_name) {
+ OBD_FREE(cobd->cache_name, LUSTRE_CFG_BUFLEN(lcfg, 2));
+ cobd->cache_name = NULL;
+ }
+ }
+ return rc;
}
-static int
-cobd_cleanup (struct obd_device *dev)
+static int cobd_cleanup(struct obd_device *obd, int flags)
{
- struct cache_obd *cobd = &dev->u.cobd;
- int rc;
+ struct cache_obd *cobd = &obd->u.cobd;
+ int rc = 0;
+ ENTRY;
+
+ if (!list_empty(&obd->obd_exports))
+ RETURN(-EBUSY);
+
+ if (cobd->cache_name)
+ OBD_FREE(cobd->cache_name,
+ strlen(cobd->cache_name) + 1);
+ if (cobd->master_name)
+ OBD_FREE(cobd->master_name,
+ strlen(cobd->master_name) + 1);
+
+ rc = class_disconnect(cobd->master_exp, flags);
+ if (rc) {
+ CERROR("error disconnecting master, err %d\n",
+ rc);
+ }
+ rc = class_disconnect(cobd->cache_exp, flags);
+ if (rc) {
+ CERROR("error disconnecting master, err %d\n",
+ rc);
+ }
+
+ RETURN(0);
+}
+
+static inline struct obd_export *
+cobd_get_exp(struct obd_device *obd)
+{
+ struct cache_obd *cobd = &obd->u.cobd;
+ ENTRY;
- if (!list_empty (&dev->obd_exports))
- return (-EBUSY);
+ if (cobd->cache_on) {
+ CDEBUG(D_TRACE, "get cache exp %p \n", cobd->cache_exp);
+ if (cobd->cache_real_exp)
+ RETURN(cobd->cache_real_exp);
+ RETURN(cobd->cache_exp);
+ }
- rc = obd_disconnect (&cobd->cobd_cache);
- if (rc != 0)
- CERROR ("error %d disconnecting cache\n", rc);
+ CDEBUG(D_TRACE, "get master exp %p \n", cobd->master_exp);
+ if (cobd->master_real_exp)
+ RETURN(cobd->master_real_exp);
+ RETURN(cobd->master_exp);
+}
+
+static int cobd_init_dt_desc(struct obd_device *obd)
+{
+ struct cache_obd *cobd = &obd->u.cobd;
+ struct obd_export *cobd_exp;
+ __u32 valsize;
+ int rc = 0;
+ ENTRY;
- rc = obd_disconnect (&cobd->cobd_target);
- if (rc != 0)
- CERROR ("error %d disconnecting target\n", rc);
+ valsize = sizeof(cobd->dt_desc);
+ memset(&cobd->dt_desc, 0, sizeof(cobd->dt_desc));
- return (0);
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_get_info(cobd_exp, strlen("lovdesc") + 1,
+ "lovdesc", &valsize, &cobd->dt_desc);
+ RETURN(rc);
+}
+
+static int cobd_init_ea_size(struct obd_device *obd)
+{
+ int rc = 0, tgt_count, easize, cookiesize;
+ struct cache_obd *cobd = &obd->u.cobd;
+ struct obd_export *cobd_exp;
+ ENTRY;
+
+ tgt_count = cobd->dt_desc.ld_tgt_count;
+
+ /* no EA setup is needed as there is single OST with no LOV */
+ if (tgt_count == 0)
+ RETURN(0);
+
+ cobd_exp = cobd_get_exp(obd);
+ easize = lov_mds_md_size(tgt_count);
+ cookiesize = tgt_count * sizeof(struct llog_cookie);
+ rc = obd_init_ea_size(cobd_exp, easize, cookiesize);
+ RETURN(rc);
}
static int
-cobd_connect (struct lustre_handle *conn, struct obd_device *obd,
- obd_uuid_t cluuid, struct recovd_obd *recovd,
- ptlrpc_recovery_cb_t recover)
-{
- int rc = class_connect (conn, obd, cluuid);
+cobd_connect_client(struct obd_device *obd,
+ struct obd_export *exp,
+ struct lustre_handle *conn,
+ struct obd_connect_data *data,
+ unsigned long flags)
+{
+ struct obd_device *cli_obd;
+ int rc = 0;
+ ENTRY;
+
+ LASSERT(obd);
+ LASSERT(conn);
+
+ cli_obd = class_exp2obd(exp);
+ if (cli_obd == NULL)
+ RETURN(-EINVAL);
+
+ rc = obd_connect(conn, cli_obd, &obd->obd_uuid,
+ data, flags);
+ if (rc)
+ CERROR("error connecting err %d\n", rc);
- CERROR ("rc %d\n", rc);
- return (rc);
+ RETURN(rc);
}
static int
-cobd_disconnect (struct lustre_handle *conn)
+cobd_disconnect_client(struct obd_device *obd,
+ struct obd_export *exp,
+ unsigned long flags)
+{
+ struct obd_device *cli_obd;
+ int rc = 0;
+ ENTRY;
+
+ cli_obd = class_exp2obd(exp);
+ cli_obd->obd_no_recov = obd->obd_no_recov;
+
+ rc = obd_disconnect(exp, flags);
+ if (rc) {
+ CERROR("error disconnecting from %s, err %d\n",
+ cli_obd->obd_name, rc);
+ class_export_put(exp);
+ }
+ RETURN(rc);
+}
+
+#define COBD_CONNECT (1 << 0)
+#define COBD_DISCON (1 << 1)
+#define COBD_SWITCH (1 << 2)
+
+/* magic function for switching cobd between two exports cache and master in
+ * strong correspondence with passed @cache_on. It also may perform partial
+ * actions like only turn off old export or only turn on new one.
+ *
+ * bias == COBD_CONNECT only connect new export (used in cobd_connect())
+ * bias == COBD_DISCON only disconnect old export (used in cobd_disconnect())
+ *
+ * bias == COBD_SWITCH do both (disconnect old and connect new). This will also
+ * set ->cache_on to passed @cache_on value.
+ */
+static int cobd_switch(struct obd_device *obd,
+ int cache_on, int bias)
{
- int rc = class_disconnect (conn);
-
- CERROR ("rc %d\n", rc);
- return (rc);
+ struct cache_obd *cobd = &obd->u.cobd;
+ struct obd_device *cli_obd = NULL;
+ struct lustre_handle conn = {0,};
+ struct obd_export *discon_exp;
+ struct obd_export *conn_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (cache_on) {
+ discon_exp = cobd->master_real_exp;
+ conn_exp = cobd->cache_exp;
+ } else {
+ discon_exp = cobd->cache_real_exp;
+ conn_exp = cobd->master_exp;
+ }
+
+ /* disconnect old export */
+ if (bias == COBD_SWITCH || bias == COBD_DISCON) {
+ if (discon_exp) {
+ rc = cobd_disconnect_client(obd, discon_exp, 0);
+ if (rc) {
+ CWARN("can't disconnect export %p, err %d\n",
+ discon_exp, rc);
+ }
+ }
+
+ if (cache_on)
+ cobd->master_real_exp = NULL;
+ else
+ cobd->cache_real_exp = NULL;
+ }
+
+ /* connect new export */
+ if (bias == COBD_SWITCH || bias == COBD_CONNECT) {
+ int connected;
+
+ connected = cache_on ? (cobd->cache_real_exp != NULL) :
+ (cobd->master_real_exp != NULL);
+
+ /* correct export already may be connected */
+ if (!connected) {
+ rc = cobd_connect_client(obd, conn_exp, &conn,
+ NULL, OBD_OPT_REAL_CLIENT);
+ if (rc) {
+ CERROR("can't connect export %p, err %d\n",
+ conn_exp, rc);
+ RETURN(rc);
+ }
+
+ if (cache_on) {
+ cobd->cache_real_exp = class_conn2export(&conn);
+ cli_obd = class_exp2obd(cobd->cache_exp);
+ } else {
+ cobd->master_real_exp = class_conn2export(&conn);
+ cli_obd = class_exp2obd(cobd->master_exp);
+ }
+
+ /* change flag only if connect is allowed to keep
+ * ->cache_on coherent with real export connected. */
+ cobd->cache_on = cache_on;
+
+ /* re-init EA size for new selected export. This should
+ * be done after assigining new state to @cobd->cache_on
+ * to not call disconnected old export. */
+ if (obd_md_type(cli_obd)) {
+ rc = cobd_init_dt_desc(obd);
+ if (rc == 0) {
+ rc = cobd_init_ea_size(obd);
+ if (rc) {
+ CERROR("can't initialize EA size, "
+ "err %d\n", rc);
+ }
+ } else {
+ CERROR("can't initialize data lovdesc, "
+ "err %d\n", rc);
+ /* ignore cases when we did not manage
+ * to init lovdesc. This is because some
+ * devices may not know "lovdesc" info
+ * command. */
+ rc = 0;
+ }
+ }
+ }
+ }
+
+ RETURN(rc);
}
-static int
-cobd_get_info(struct lustre_handle *conn, obd_count keylen,
- void *key, obd_count *vallen, void **val)
+static int
+cobd_connect(struct lustre_handle *conn, struct obd_device *obd,
+ struct obd_uuid *cluuid, struct obd_connect_data *data,
+ unsigned long flags)
{
- struct obd_device *obd = class_conn2obd(conn);
- struct cache_obd *cobd;
+ struct cache_obd *cobd = &obd->u.cobd;
+ struct obd_export *exp;
+ int rc = 0;
+ ENTRY;
+
+ rc = class_connect(conn, obd, cluuid);
+ if (rc)
+ RETURN(rc);
+ exp = class_conn2export(conn);
+ rc = cobd_switch(obd, cobd->cache_on,
+ COBD_CONNECT);
+ if (rc)
+ class_disconnect(exp, 0);
+ else
+ class_export_put(exp);
+ RETURN(rc);
+}
+
+static int
+cobd_disconnect(struct obd_export *exp, unsigned long flags)
+{
+ struct cache_obd *cobd;
+ struct obd_device *obd;
+ int rc = 0;
+ ENTRY;
+
+ LASSERT(exp != NULL);
+ obd = class_exp2obd(exp);
if (obd == NULL) {
- CERROR("invalid client "LPX64"\n", conn->addr);
- return -EINVAL;
+ CDEBUG(D_IOCTL, "invalid client cookie "
+ LPX64"\n", exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
}
+ /* here would be nice also to check that disconnect goes to the same
+ * export as connect did. But as now we are accepting the notion that
+ * cache should be switched after client umount this is not needed.
+ * --umka. */
cobd = &obd->u.cobd;
+ rc = cobd_switch(obd, !cobd->cache_on, COBD_DISCON);
+ class_disconnect(exp, flags);
+
+ RETURN(rc);
+}
+
+static int cobd_get_info(struct obd_export *exp, __u32 keylen,
+ void *key, __u32 *vallen, void *val)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
/* intercept cache utilisation info? */
+ rc = obd_get_info(cobd_exp, keylen, key, vallen, val);
+ RETURN(rc);
+}
+
+static int cobd_set_info(struct obd_export *exp, obd_count keylen,
+ void *key, obd_count vallen, void *val)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+
+ LASSERT(cobd_exp);
+
+ /* intercept cache utilisation info? */
+ rc = obd_set_info(cobd_exp, keylen, key, vallen, val);
+ RETURN(rc);
+}
+
+static int cobd_statfs(struct obd_device *obd,
+ struct obd_statfs *osfs,
+ unsigned long max_age)
+{
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_statfs(class_exp2obd(cobd_exp), osfs, max_age);
+ RETURN(rc);
+}
+
+static int cobd_iocontrol(unsigned int cmd, struct obd_export *exp,
+ int len, void *karg, void *uarg)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct cache_obd *cobd = &obd->u.cobd;
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ down(&cobd->sem);
+
+ /* here would be nice also to make sure somehow that there are no
+ * out-standing requests which go to wrong MDS after cache switch (close
+ * RPCs). But how to check that from COBD? I do not know. --umka */
+ switch (cmd) {
+ case OBD_IOC_COBD_CON:
+ if (!cobd->cache_on)
+ rc = cobd_switch(obd, 1, COBD_SWITCH);
+ break;
+ case OBD_IOC_COBD_COFF:
+ if (cobd->cache_on)
+ rc = cobd_switch(obd, 0, COBD_SWITCH);
+ break;
+ default:
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_iocontrol(cmd, cobd_exp, len, karg, uarg);
+ }
+
+ up(&cobd->sem);
+ RETURN(rc);
+}
- return (obd_get_info (&cobd->cobd_target,
- keylen, key, vallen, val));
+static int cobd_notify(struct obd_device *obd, struct obd_device *watched,
+ int active, void *data)
+{
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_notify(class_exp2obd(cobd_exp), watched, active, data);
+ RETURN(rc);
}
-static int
-cobd_statfs(struct lustre_handle *conn, struct obd_statfs *osfs)
+static int cobd_pin(struct obd_export *exp, obd_id ino, __u32 gen,
+ int type, struct obd_client_handle *handle,
+ int flag)
{
- struct obd_device *obd = class_conn2obd(conn);
- struct cache_obd *cobd;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
if (obd == NULL) {
- CERROR("invalid client "LPX64"\n", conn->addr);
- return -EINVAL;
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
}
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_pin(cobd_exp, ino, gen, type, handle, flag);
+ RETURN(rc);
+}
- cobd = &obd->u.cobd;
- return (obd_statfs (&cobd->cobd_target, osfs));
+static int cobd_unpin(struct obd_export *exp,
+ struct obd_client_handle *handle,
+ int flag)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_unpin(cobd_exp, handle, flag);
+ RETURN(rc);
}
-static int
-cobd_getattr(struct lustre_handle *conn, struct obdo *oa,
- struct lov_stripe_md *lsm)
+/* data related stuff */
+static int cobd_dt_packmd(struct obd_export *exp,
+ struct lov_mds_md **disk_tgt,
+ struct lov_stripe_md *mem_src)
{
- struct obd_device *obd = class_conn2obd(conn);
- struct cache_obd *cobd;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
if (obd == NULL) {
- CERROR("invalid client "LPX64"\n", conn->addr);
- return -EINVAL;
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
}
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_packmd(cobd_exp, disk_tgt, mem_src);
+ RETURN(rc);
+}
- cobd = &obd->u.cobd;
- return (obd_getattr (&cobd->cobd_target, oa, lsm));
+static int cobd_dt_unpackmd(struct obd_export *exp,
+ struct lov_stripe_md **mem_tgt,
+ struct lov_mds_md *disk_src,
+ int disk_len)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_unpackmd(cobd_exp, mem_tgt, disk_src, disk_len);
+ RETURN(rc);
}
-static int
-cobd_open(struct lustre_handle *conn, struct obdo *oa,
- struct lov_stripe_md *lsm)
+static int cobd_dt_create(struct obd_export *exp,
+ struct obdo *obdo,
+ void *acl, int acl_size,
+ struct lov_stripe_md **ea,
+ struct obd_trans_info *oti)
{
- struct obd_device *obd = class_conn2obd(conn);
- struct cache_obd *cobd;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
if (obd == NULL) {
- CERROR("invalid client "LPX64"\n", conn->addr);
- return -EINVAL;
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
}
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_create(cobd_exp, obdo, acl, acl_size, ea, oti);
+ RETURN(rc);
+}
- cobd = &obd->u.cobd;
- return (obd_open (&cobd->cobd_target, oa, lsm));
+static int cobd_dt_destroy(struct obd_export *exp,
+ struct obdo *obdo,
+ struct lov_stripe_md *ea,
+ struct obd_trans_info *oti)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_destroy(cobd_exp, obdo, ea, oti);
+ RETURN(rc);
+}
+
+static int cobd_dt_precleanup(struct obd_device *obd, int flags)
+{
+ /* FIXME: do we need some cleanup here? */
+ ENTRY;
+ RETURN(0);
}
-static int
-cobd_close(struct lustre_handle *conn, struct obdo *oa,
- struct lov_stripe_md *lsm)
+static int cobd_dt_getattr(struct obd_export *exp, struct obdo *oa,
+ struct lov_stripe_md *ea)
{
- struct obd_device *obd = class_conn2obd(conn);
- struct cache_obd *cobd;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
if (obd == NULL) {
- CERROR("invalid client "LPX64"\n", conn->addr);
- return -EINVAL;
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
}
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_getattr(cobd_exp, oa, ea);
+ RETURN(rc);
+}
- cobd = &obd->u.cobd;
- return (obd_close (&cobd->cobd_target, oa, lsm));
+static int cobd_dt_getattr_async(struct obd_export *exp,
+ struct obdo *obdo, struct lov_stripe_md *ea,
+ struct ptlrpc_request_set *set)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_getattr_async(cobd_exp, obdo, ea, set);
+ RETURN(rc);
}
-static int
-cobd_preprw(int cmd, struct lustre_handle *conn,
- int objcount, struct obd_ioobj *obj,
- int niocount, struct niobuf_remote *nb,
- struct niobuf_local *res, void **desc_private)
+static int cobd_dt_setattr(struct obd_export *exp, struct obdo *obdo,
+ struct lov_stripe_md *ea,
+ struct obd_trans_info *oti,
+ struct lustre_capa *capa)
{
- struct obd_device *obd = class_conn2obd(conn);
- struct cache_obd *cobd;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
if (obd == NULL) {
- CERROR("invalid client "LPX64"\n", conn->addr);
- return -EINVAL;
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
}
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_setattr(cobd_exp, obdo, ea, oti, capa);
+ RETURN(rc);
+}
- if ((cmd & OBD_BRW_WRITE) != 0)
- return -EOPNOTSUPP;
-
- cobd = &obd->u.cobd;
- return (obd_preprw (cmd, &cobd->cobd_target,
- objcount, obj,
- niocount, nb,
- res, desc_private));
+static int cobd_dt_brw(int cmd, struct obd_export *exp, struct obdo *oa,
+ struct lov_stripe_md *ea, obd_count oa_bufs,
+ struct brw_page *pg, struct obd_trans_info *oti)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_brw(cmd, cobd_exp, oa, ea, oa_bufs, pg, oti);
+ RETURN(rc);
+}
+
+static int cobd_dt_brw_async(int cmd, struct obd_export *exp,
+ struct obdo *oa, struct lov_stripe_md *ea,
+ obd_count oa_bufs, struct brw_page *pg,
+ struct ptlrpc_request_set *set,
+ struct obd_trans_info *oti)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_brw_async(cmd, cobd_exp, oa, ea, oa_bufs,
+ pg, set, oti);
+ RETURN(rc);
+}
+
+static int cobd_dt_prep_async_page(struct obd_export *exp,
+ struct lov_stripe_md *lsm,
+ struct lov_oinfo *loi,
+ struct page *page, obd_off offset,
+ struct obd_async_page_ops *ops,
+ void *data, void **res)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_prep_async_page(cobd_exp, lsm, loi, page,
+ offset, ops, data, res);
+ RETURN(rc);
+}
+
+static int cobd_dt_queue_async_io(struct obd_export *exp,
+ struct lov_stripe_md *lsm,
+ struct lov_oinfo *loi, void *cookie,
+ int cmd, obd_off off, int count,
+ obd_flags brw_flags, obd_flags async_flags)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_queue_async_io(cobd_exp, lsm, loi, cookie, cmd, off,
+ count, brw_flags, async_flags);
+ RETURN(rc);
+}
+
+static int cobd_dt_set_async_flags(struct obd_export *exp,
+ struct lov_stripe_md *lsm,
+ struct lov_oinfo *loi, void *cookie,
+ obd_flags async_flags)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_set_async_flags(cobd_exp, lsm, loi, cookie,
+ async_flags);
+ RETURN(rc);
+}
+
+static int cobd_dt_queue_group_io(struct obd_export *exp,
+ struct lov_stripe_md *lsm,
+ struct lov_oinfo *loi,
+ struct obd_io_group *oig,
+ void *cookie, int cmd, obd_off off,
+ int count, obd_flags brw_flags,
+ obd_flags async_flags)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_queue_group_io(cobd_exp, lsm, loi, oig, cookie,
+ cmd, off, count, brw_flags,
+ async_flags);
+ RETURN(rc);
+}
+
+static int cobd_dt_trigger_group_io(struct obd_export *exp,
+ struct lov_stripe_md *lsm,
+ struct lov_oinfo *loi,
+ struct obd_io_group *oig)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_trigger_group_io(cobd_exp, lsm, loi, oig);
+ RETURN(rc);
+}
+
+static int cobd_dt_teardown_async_page(struct obd_export *exp,
+ struct lov_stripe_md *lsm,
+ struct lov_oinfo *loi,
+ void *cookie)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_teardown_async_page(cobd_exp, lsm, loi, cookie);
+ RETURN(rc);
+}
+
+static int cobd_dt_punch(struct obd_export *exp, struct obdo *oa,
+ struct lov_stripe_md *ea, obd_size start,
+ obd_size end, struct obd_trans_info *oti,
+ struct lustre_capa *capa)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_punch(cobd_exp, oa, ea, start, end, oti, capa);
+ RETURN(rc);
+}
+
+static int cobd_dt_sync(struct obd_export *exp, struct obdo *oa,
+ struct lov_stripe_md *ea, obd_size start,
+ obd_size end)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_sync(cobd_exp, oa, ea, start, end);
+ RETURN(rc);
+}
+
+static int cobd_dt_enqueue(struct obd_export *exp, struct lov_stripe_md *ea,
+ __u32 type, ldlm_policy_data_t *policy,
+ __u32 mode, int *flags, void *bl_cb, void *cp_cb,
+ void *gl_cb, void *data, __u32 lvb_len,
+ void *lvb_swabber, struct lustre_handle *lockh)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_enqueue(cobd_exp, ea, type, policy, mode, flags,
+ bl_cb, cp_cb, gl_cb, data, lvb_len,
+ lvb_swabber, lockh);
+ RETURN(rc);
+}
+
+static int cobd_dt_match(struct obd_export *exp, struct lov_stripe_md *ea,
+ __u32 type, ldlm_policy_data_t *policy, __u32 mode,
+ int *flags, void *data, struct lustre_handle *lockh)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_match(cobd_exp, ea, type, policy, mode, flags,
+ data, lockh);
+ RETURN(rc);
+}
+static int cobd_dt_change_cbdata(struct obd_export *exp,
+ struct lov_stripe_md *lsm,
+ ldlm_iterator_t it, void *data)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_change_cbdata(cobd_exp, lsm, it, data);
+ RETURN(rc);
}
-static int
-cobd_commitrw(int cmd, struct lustre_handle *conn,
- int objcount, struct obd_ioobj *obj,
- int niocount, struct niobuf_local *local,
- void *desc_private)
+static int cobd_dt_cancel(struct obd_export *exp,
+ struct lov_stripe_md *ea, __u32 mode,
+ struct lustre_handle *lockh)
{
- struct obd_device *obd = class_conn2obd(conn);
- struct cache_obd *cobd;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
if (obd == NULL) {
- CERROR("invalid client "LPX64"\n", conn->addr);
- return -EINVAL;
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
}
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_cancel(cobd_exp, ea, mode, lockh);
+ RETURN(rc);
+}
- if ((cmd & OBD_BRW_WRITE) != 0)
- return -EOPNOTSUPP;
+static int cobd_dt_cancel_unused(struct obd_export *exp,
+ struct lov_stripe_md *ea,
+ int flags, void *opaque)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
- cobd = &obd->u.cobd;
- return (obd_commitrw (cmd, &cobd->cobd_target,
- objcount, obj,
- niocount, local,
- desc_private));
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_cancel_unused(cobd_exp, ea, flags, opaque);
+ RETURN(rc);
}
-static inline int
-cobd_brw(int cmd, struct lustre_handle *conn,
- struct lov_stripe_md *lsm, obd_count oa_bufs,
- struct brw_page *pga, struct obd_brw_set *set)
+static int cobd_dt_preprw(int cmd, struct obd_export *exp,
+ struct obdo *oa, int objcount,
+ struct obd_ioobj *obj, int niocount,
+ struct niobuf_remote *nb,
+ struct niobuf_local *res,
+ struct obd_trans_info *oti,
+ struct lustre_capa *capa)
{
- struct obd_device *obd = class_conn2obd(conn);
- struct cache_obd *cobd;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
if (obd == NULL) {
- CERROR("invalid client "LPX64"\n", conn->addr);
- return -EINVAL;
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
}
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_preprw(cmd, cobd_exp, oa, objcount, obj,
+ niocount, nb, res, oti, capa);
+ RETURN(rc);
+}
+
+static int cobd_dt_commitrw(int cmd, struct obd_export *exp, struct obdo *oa,
+ int objcount, struct obd_ioobj *obj,
+ int niocount, struct niobuf_local *local,
+ struct obd_trans_info *oti, int rc)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int err = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ err = obd_commitrw(cmd, cobd_exp, oa, objcount, obj,
+ niocount, local, oti, rc);
+ RETURN(err);
+}
+
+static int cobd_dt_adjust_kms(struct obd_export *exp,
+ struct lov_stripe_md *lsm,
+ obd_off size, int shrink)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
- if ((cmd & OBD_BRW_WRITE) != 0)
- return -EOPNOTSUPP;
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = obd_adjust_kms(cobd_exp, lsm, size, shrink);
- cobd = &obd->u.cobd;
- return (obd_brw (cmd, &cobd->cobd_target,
- lsm, oa_bufs, pga, set));
+ RETURN(rc);
+}
+
+static int cobd_dt_llog_init(struct obd_device *obd,
+ struct obd_llogs *llogs,
+ struct obd_device *disk_obd,
+ int count, struct llog_catid *logid)
+{
+ struct obd_export *cobd_exp;
+ struct obd_device *cobd_obd;
+ int rc = 0;
+ ENTRY;
+
+ cobd_exp = cobd_get_exp(obd);
+ cobd_obd = class_exp2obd(cobd_exp);
+
+ rc = obd_llog_init(cobd_obd, &cobd_obd->obd_llogs,
+ disk_obd, count, logid);
+ RETURN(rc);
+}
+
+static int cobd_dt_llog_finish(struct obd_device *obd,
+ struct obd_llogs *llogs,
+ int count)
+{
+ struct obd_export *cobd_exp;
+ struct obd_device *cobd_obd;
+ int rc = 0;
+ ENTRY;
+
+ cobd_exp = cobd_get_exp(obd);
+ cobd_obd = class_exp2obd(cobd_exp);
+
+ rc = obd_llog_finish(cobd_obd, &cobd_obd->obd_llogs, count);
+ RETURN(rc);
+}
+
+static int cobd_dt_init_ea_size(struct obd_export *exp, int easize,
+ int cookiesize)
+{
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ cobd_exp = cobd_get_exp(exp->exp_obd);
+ rc = obd_init_ea_size(cobd_exp, easize, cookiesize);
+ RETURN(rc);
+}
+
+static int cobd_dt_import_event(struct obd_device *obd,
+ struct obd_import *imp,
+ enum obd_import_event event)
+{
+ struct obd_export *cobd_exp;
+ ENTRY;
+
+ cobd_exp = cobd_get_exp(obd);
+ obd_import_event(class_exp2obd(cobd_exp), imp, event);
+ RETURN(0);
}
-static int
-cobd_iocontrol(unsigned int cmd, struct lustre_handle *conn, int len,
- void *karg, void *uarg)
+/* metadata related stuff */
+static int cobd_md_getstatus(struct obd_export *exp,
+ struct lustre_id *rootid)
{
- struct obd_device *obd = class_conn2obd(conn);
- struct cache_obd *cobd;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
if (obd == NULL) {
- CERROR("invalid client "LPX64"\n", conn->addr);
- return -EINVAL;
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
}
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_getstatus(cobd_exp, rootid);
+ RETURN(rc);
+}
- /* intercept? */
+static int cobd_md_getattr(struct obd_export *exp, struct lustre_id *id,
+ __u64 valid, const char *xattr_name,
+ const void *xattr_data, unsigned int xattr_datalen,
+ unsigned int ea_size, struct obd_capa *ocapa,
+ struct ptlrpc_request **request)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
- cobd = &obd->u.cobd;
- return (obd_iocontrol (cmd, &cobd->cobd_target, len, karg, uarg));
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_getattr(cobd_exp, id, valid, xattr_name, xattr_data,
+ xattr_datalen, ea_size, ocapa, request);
+ RETURN(rc);
+}
+
+static int cobd_md_req2lustre_md(struct obd_export *mdc_exp,
+ struct ptlrpc_request *req,
+ unsigned int offset,
+ struct obd_export *osc_exp,
+ struct lustre_md *md)
+{
+ struct obd_device *obd = class_exp2obd(mdc_exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ mdc_exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_req2lustre_md(cobd_exp, req, offset, osc_exp, md);
+ RETURN(rc);
+}
+
+static int cobd_md_change_cbdata(struct obd_export *exp, struct lustre_id *id,
+ ldlm_iterator_t it, void *data)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_change_cbdata(cobd_exp, id, it, data);
+ RETURN(rc);
+}
+
+static int cobd_md_getattr_lock(struct obd_export *exp, struct lustre_id *id,
+ char *filename, int namelen, __u64 valid,
+ unsigned int ea_size, struct ptlrpc_request **request)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_getattr_lock(cobd_exp, id, filename, namelen,
+ valid, ea_size, request);
+ RETURN(rc);
+}
+
+static int cobd_md_create(struct obd_export *exp, struct mdc_op_data *op_data,
+ const void *data, int datalen, int mode,
+ __u32 uid, __u32 gid, __u64 rdev,
+ struct ptlrpc_request **request)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_create(cobd_exp, op_data, data, datalen, mode,
+ uid, gid, rdev, request);
+ RETURN(rc);
+}
+
+static int cobd_md_unlink(struct obd_export *exp,
+ struct mdc_op_data *data,
+ struct ptlrpc_request **request)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_unlink(cobd_exp, data, request);
+ RETURN(rc);
+}
+
+static int cobd_md_valid_attrs(struct obd_export *exp,
+ struct lustre_id *id)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_valid_attrs(cobd_exp, id);
+ RETURN(rc);
+}
+
+static int cobd_md_rename(struct obd_export *exp, struct mdc_op_data *data,
+ const char *old, int oldlen, const char *new,
+ int newlen, struct ptlrpc_request **request)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_rename(cobd_exp, data, old, oldlen, new, newlen, request);
+ RETURN(rc);
+}
+
+static int cobd_md_link(struct obd_export *exp, struct mdc_op_data *data,
+ struct ptlrpc_request **request)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_link(cobd_exp, data, request);
+ RETURN(rc);
+}
+
+static int cobd_md_setattr(struct obd_export *exp, struct mdc_op_data *data,
+ struct iattr *iattr, void *ea, int ealen, void *ea2,
+ int ea2len, void *ea3, int ea3len,
+ struct ptlrpc_request **request)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_setattr(cobd_exp, data, iattr, ea,
+ ealen, ea2, ea2len, ea3, ea3len, request);
+ RETURN(rc);
+}
+
+static int cobd_md_readpage(struct obd_export *exp,
+ struct lustre_id *mdc_id,
+ __u64 offset, struct page *page,
+ struct ptlrpc_request **request)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_readpage(cobd_exp, mdc_id, offset, page, request);
+ RETURN(rc);
+}
+
+static int cobd_md_close(struct obd_export *exp, struct mdc_op_data *op_data,
+ struct obd_client_handle *och,
+ struct ptlrpc_request **request)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_close(cobd_exp, op_data, och, request);
+ RETURN(rc);
+}
+
+static int cobd_md_done_writing(struct obd_export *exp,
+ struct obdo *obdo)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_done_writing(cobd_exp, obdo);
+ RETURN(rc);
+}
+
+static int cobd_md_sync(struct obd_export *exp, struct lustre_id *id,
+ struct ptlrpc_request **request)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_sync(cobd_exp, id, request);
+ RETURN(rc);
+}
+
+static int cobd_md_set_open_replay_data(struct obd_export *exp,
+ struct obd_client_handle *och,
+ struct ptlrpc_request *open_req)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_set_open_replay_data(cobd_exp, och, open_req);
+ RETURN(rc);
+}
+
+static int cobd_md_clear_open_replay_data(struct obd_export *exp,
+ struct obd_client_handle *och)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_clear_open_replay_data(cobd_exp, och);
+ RETURN(rc);
+}
+
+static int cobd_md_store_inode_generation(struct obd_export *exp,
+ struct ptlrpc_request *req,
+ int reqoff, int repoff)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_store_inode_generation(cobd_exp, req, reqoff, repoff);
+ RETURN(rc);
}
-static struct obd_ops cobd_ops = {
- o_owner: THIS_MODULE,
- o_attach: cobd_attach,
- o_detach: cobd_detach,
+static int cobd_md_set_lock_data(struct obd_export *exp,
+ __u64 *l, void *data)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_set_lock_data(cobd_exp, l, data);
+ RETURN(rc);
+}
- o_setup: cobd_setup,
- o_cleanup: cobd_cleanup,
+static int cobd_md_enqueue(struct obd_export *exp, int lock_type,
+ struct lookup_intent *it, int lock_mode,
+ struct mdc_op_data *data, struct lustre_handle *lockh,
+ void *lmm, int lmmsize,
+ ldlm_completion_callback cb_completion,
+ ldlm_blocking_callback cb_blocking, void *cb_data)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
- o_connect: cobd_connect,
- o_disconnect: cobd_disconnect,
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_enqueue(cobd_exp, lock_type, it, lock_mode, data,
+ lockh, lmm, lmmsize, cb_completion, cb_blocking,
+ cb_data);
+ RETURN(rc);
+}
- o_get_info: cobd_get_info,
- o_statfs: cobd_statfs,
+static int cobd_md_intent_lock(struct obd_export *exp, struct lustre_id *pid,
+ const char *name, int len, void *lmm, int lmmsize,
+ struct lustre_id *cid, struct lookup_intent *it,
+ int lookup_flags, struct ptlrpc_request **reqp,
+ ldlm_blocking_callback cb_blocking)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+ ENTRY;
- o_getattr: cobd_getattr,
- o_open: cobd_open,
- o_close: cobd_close,
- o_preprw: cobd_preprw,
- o_commitrw: cobd_commitrw,
- o_brw: cobd_brw,
- o_iocontrol: cobd_iocontrol,
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ lookup_flags |= LOOKUP_COBD;
+ cobd_exp = cobd_get_exp(obd);
+
+ rc = md_intent_lock(cobd_exp, pid, name, len, lmm, lmmsize,
+ cid, it, lookup_flags, reqp, cb_blocking);
+ RETURN(rc);
+}
+
+static struct obd_device *cobd_md_get_real_obd(struct obd_export *exp,
+ struct lustre_id *id)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ ENTRY;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(NULL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ RETURN(md_get_real_obd(cobd_exp, id));
+}
+
+static int cobd_md_change_cbdata_name(struct obd_export *exp,
+ struct lustre_id *id, char *name,
+ int namelen, struct lustre_id *id2,
+ ldlm_iterator_t it, void *data)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct obd_export *cobd_exp;
+ int rc = 0;
+
+ if (obd == NULL) {
+ CERROR("invalid client cookie "LPX64"\n",
+ exp->exp_handle.h_cookie);
+ RETURN(-EINVAL);
+ }
+ cobd_exp = cobd_get_exp(obd);
+ rc = md_change_cbdata_name(cobd_exp, id, name, namelen,
+ id2, it, data);
+ RETURN(rc);
+}
+
+static struct obd_ops cobd_obd_ops = {
+ .o_owner = THIS_MODULE,
+ .o_attach = cobd_attach,
+ .o_detach = cobd_detach,
+ .o_setup = cobd_setup,
+ .o_cleanup = cobd_cleanup,
+ .o_connect = cobd_connect,
+ .o_disconnect = cobd_disconnect,
+ .o_set_info = cobd_set_info,
+ .o_get_info = cobd_get_info,
+ .o_statfs = cobd_statfs,
+ .o_iocontrol = cobd_iocontrol,
+ .o_notify = cobd_notify,
+ .o_pin = cobd_pin,
+ .o_unpin = cobd_unpin,
+
+ .o_packmd = cobd_dt_packmd,
+ .o_unpackmd = cobd_dt_unpackmd,
+ .o_create = cobd_dt_create,
+ .o_destroy = cobd_dt_destroy,
+ .o_precleanup = cobd_dt_precleanup,
+ .o_getattr = cobd_dt_getattr,
+ .o_getattr_async = cobd_dt_getattr_async,
+ .o_setattr = cobd_dt_setattr,
+ .o_brw = cobd_dt_brw,
+ .o_brw_async = cobd_dt_brw_async,
+ .o_prep_async_page = cobd_dt_prep_async_page,
+ .o_queue_async_io = cobd_dt_queue_async_io,
+ .o_set_async_flags = cobd_dt_set_async_flags,
+ .o_queue_group_io = cobd_dt_queue_group_io,
+ .o_trigger_group_io = cobd_dt_trigger_group_io,
+ .o_teardown_async_page = cobd_dt_teardown_async_page,
+ .o_preprw = cobd_dt_preprw,
+ .o_punch = cobd_dt_punch,
+ .o_sync = cobd_dt_sync,
+ .o_enqueue = cobd_dt_enqueue,
+ .o_match = cobd_dt_match,
+ .o_change_cbdata = cobd_dt_change_cbdata,
+ .o_cancel = cobd_dt_cancel,
+ .o_cancel_unused = cobd_dt_cancel_unused,
+ .o_commitrw = cobd_dt_commitrw,
+ .o_llog_init = cobd_dt_llog_init,
+ .o_llog_finish = cobd_dt_llog_finish,
+ .o_import_event = cobd_dt_import_event,
+ .o_init_ea_size = cobd_dt_init_ea_size,
+ .o_adjust_kms = cobd_dt_adjust_kms,
};
-static int __init
-cobd_init (void)
+struct md_ops cobd_md_ops = {
+ .m_getstatus = cobd_md_getstatus,
+ .m_getattr = cobd_md_getattr,
+ .m_req2lustre_md = cobd_md_req2lustre_md,
+ .m_change_cbdata = cobd_md_change_cbdata,
+ .m_getattr_lock = cobd_md_getattr_lock,
+ .m_create = cobd_md_create,
+ .m_unlink = cobd_md_unlink,
+ .m_valid_attrs = cobd_md_valid_attrs,
+ .m_rename = cobd_md_rename,
+ .m_link = cobd_md_link,
+ .m_setattr = cobd_md_setattr,
+ .m_readpage = cobd_md_readpage,
+ .m_close = cobd_md_close,
+ .m_done_writing = cobd_md_done_writing,
+ .m_sync = cobd_md_sync,
+ .m_set_open_replay_data = cobd_md_set_open_replay_data,
+ .m_clear_open_replay_data = cobd_md_clear_open_replay_data,
+ .m_store_inode_generation = cobd_md_store_inode_generation,
+ .m_set_lock_data = cobd_md_set_lock_data,
+ .m_enqueue = cobd_md_enqueue,
+ .m_get_real_obd = cobd_md_get_real_obd,
+ .m_intent_lock = cobd_md_intent_lock,
+ .m_change_cbdata_name = cobd_md_change_cbdata_name,
+};
+
+static int __init cobd_init(void)
{
- int rc;
-
- printk (KERN_INFO "Lustre Caching OBD driver\n");
-
- rc = class_register_type (&cobd_ops, status_class_var,
- OBD_CACHE_DEVICENAME);
- return (rc);
+ struct lprocfs_static_vars lvars;
+ ENTRY;
+
+ printk(KERN_INFO "Lustre: Caching OBD driver; info@clusterfs.com\n");
+
+ lprocfs_init_vars(cobd, &lvars);
+ RETURN(class_register_type(&cobd_obd_ops, &cobd_md_ops,
+ lvars.module_vars, OBD_CACHE_DEVICENAME));
}
-static void __exit
-cobd_exit (void)
+static void /*__exit*/ cobd_exit(void)
{
- class_unregister_type (OBD_CACHE_DEVICENAME);
+ class_unregister_type(OBD_CACHE_DEVICENAME);
}
-MODULE_AUTHOR("Cluster Filesystems Inc. <info@clusterfs.com>");
+MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
MODULE_DESCRIPTION("Lustre Caching OBD driver");
MODULE_LICENSE("GPL");
module_init(cobd_init);
module_exit(cobd_exit);
-
-