#define DEBUG_SUBSYSTEM S_FILTER
#include "ofd_internal.h"
+#include <obd_cksum.h>
+
+static int ofd_export_stats_init(struct ofd_device *ofd,
+ struct obd_export *exp, void *client_nid)
+{
+ struct obd_device *obd = ofd_obd(ofd);
+ struct nid_stat *stats;
+ int num_stats, i;
+ int rc, newnid = 0;
+
+ ENTRY;
+
+ if (obd_uuid_equals(&exp->exp_client_uuid, &obd->obd_uuid))
+ /* Self-export gets no proc entry */
+ RETURN(0);
+
+ rc = lprocfs_exp_setup(exp, client_nid, &newnid);
+ if (rc) {
+ /* Mask error for already created
+ * /proc entries */
+ if (rc == -EALREADY)
+ rc = 0;
+ RETURN(rc);
+ }
+
+ if (newnid == 0)
+ RETURN(0);
+
+ stats = exp->exp_nid_stats;
+ LASSERT(stats != NULL);
+
+ OBD_ALLOC(stats->nid_brw_stats, sizeof(struct brw_stats));
+ if (stats->nid_brw_stats == NULL)
+ GOTO(clean, rc = -ENOMEM);
+
+ for (i = 0; i < BRW_LAST; i++)
+ cfs_spin_lock_init(&stats->nid_brw_stats->hist[i].oh_lock);
+
+ rc = lprocfs_seq_create(stats->nid_proc, "brw_stats", 0644,
+ &ofd_per_nid_stats_fops, stats);
+ if (rc)
+ CWARN("Error adding the brw_stats file\n");
+
+ num_stats = (sizeof(*obd->obd_type->typ_dt_ops) / sizeof(void *)) +
+ LPROC_OFD_LAST - 1;
+
+ stats->nid_stats = lprocfs_alloc_stats(num_stats,
+ LPROCFS_STATS_FLAG_NOPERCPU);
+ if (stats->nid_stats == NULL)
+ return -ENOMEM;
+
+ lprocfs_init_ops_stats(LPROC_OFD_LAST, stats->nid_stats);
+ lprocfs_counter_init(stats->nid_stats, LPROC_OFD_READ_BYTES,
+ LPROCFS_CNTR_AVGMINMAX, "read_bytes", "bytes");
+ lprocfs_counter_init(stats->nid_stats, LPROC_OFD_WRITE_BYTES,
+ LPROCFS_CNTR_AVGMINMAX, "write_bytes", "bytes");
+
+ rc = lprocfs_register_stats(stats->nid_proc, "stats",
+ stats->nid_stats);
+ if (rc)
+ GOTO(clean, rc);
+
+ rc = lprocfs_nid_ldlm_stats_init(stats);
+ if (rc) {
+ lprocfs_free_stats(&stats->nid_stats);
+ GOTO(clean, rc);
+ }
+
+ RETURN(0);
+clean:
+ return rc;
+}
+
+static int ofd_parse_connect_data(const struct lu_env *env,
+ struct obd_export *exp,
+ struct obd_connect_data *data)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct filter_export_data *fed = &exp->exp_filter_data;
+
+ if (!data)
+ RETURN(0);
+
+ CDEBUG(D_RPCTRACE, "%s: cli %s/%p ocd_connect_flags: "LPX64
+ " ocd_version: %x ocd_grant: %d ocd_index: %u\n",
+ exp->exp_obd->obd_name, exp->exp_client_uuid.uuid, exp,
+ data->ocd_connect_flags, data->ocd_version,
+ data->ocd_grant, data->ocd_index);
+
+ if (fed->fed_group != 0 && fed->fed_group != data->ocd_group) {
+ CWARN("!!! This export (nid %s) used object group %d "
+ "earlier; now it's trying to use group %d! This could "
+ "be a bug in the MDS. Please report to "
+ "http://bugs.whamcloud.com/\n",
+ obd_export_nid2str(exp), fed->fed_group,
+ data->ocd_group);
+ RETURN(-EPROTO);
+ }
+ fed->fed_group = data->ocd_group;
+
+ data->ocd_connect_flags &= OST_CONNECT_SUPPORTED;
+ exp->exp_connect_flags = data->ocd_connect_flags;
+ data->ocd_version = LUSTRE_VERSION_CODE;
+
+ /* Kindly make sure the SKIP_ORPHAN flag is from MDS. */
+ if (data->ocd_connect_flags & OBD_CONNECT_MDS)
+ CDEBUG(D_HA, "%s: Received MDS connection for group %u\n",
+ exp->exp_obd->obd_name, data->ocd_group);
+ else if (data->ocd_connect_flags & OBD_CONNECT_SKIP_ORPHAN)
+ RETURN(-EPROTO);
+
+ if (data->ocd_connect_flags & OBD_CONNECT_INDEX) {
+ struct lr_server_data *lsd = &ofd->ofd_lut.lut_lsd;
+ int index = lsd->lsd_ost_index;
+
+ if (!(lsd->lsd_feature_compat & OBD_COMPAT_OST)) {
+ /* this will only happen on the first connect */
+ lsd->lsd_ost_index = data->ocd_index;
+ lsd->lsd_feature_compat |= OBD_COMPAT_OST;
+ /* sync is not needed here as lut_client_add will
+ * set exp_need_sync flag */
+ lut_server_data_update(env, &ofd->ofd_lut, 0);
+ } else if (index != data->ocd_index) {
+ LCONSOLE_ERROR_MSG(0x136, "Connection from %s to index"
+ " %u doesn't match actual OST index"
+ " %u in last_rcvd file, bad "
+ "configuration?\n",
+ obd_export_nid2str(exp), index,
+ data->ocd_index);
+ RETURN(-EBADF);
+ }
+ }
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_SIZE)) {
+ data->ocd_brw_size = 65536;
+ } else if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE) {
+ data->ocd_brw_size = min(data->ocd_brw_size,
+ (__u32)(PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT));
+ if (data->ocd_brw_size == 0) {
+ CERROR("%s: cli %s/%p ocd_connect_flags: "LPX64
+ " ocd_version: %x ocd_grant: %d ocd_index: %u "
+ "ocd_brw_size is unexpectedly zero, "
+ "network data corruption?"
+ "Refusing connection of this client\n",
+ exp->exp_obd->obd_name,
+ exp->exp_client_uuid.uuid,
+ exp, data->ocd_connect_flags, data->ocd_version,
+ data->ocd_grant, data->ocd_index);
+ RETURN(-EPROTO);
+ }
+ }
+
+ if (data->ocd_connect_flags & OBD_CONNECT_CKSUM) {
+ __u32 cksum_types = data->ocd_cksum_types;
+
+ /* The client set in ocd_cksum_types the checksum types it
+ * supports. We have to mask off the algorithms that we don't
+ * support */
+ data->ocd_cksum_types &= cksum_types_supported();
+
+ if (unlikely(data->ocd_cksum_types == 0)) {
+ CERROR("%s: Connect with checksum support but no "
+ "ocd_cksum_types is set\n",
+ exp->exp_obd->obd_name);
+ RETURN(-EPROTO);
+ }
+
+ CDEBUG(D_RPCTRACE, "%s: cli %s supports cksum type %x, return "
+ "%x\n", exp->exp_obd->obd_name, obd_export_nid2str(exp),
+ cksum_types, data->ocd_cksum_types);
+ } else {
+ /* This client does not support OBD_CONNECT_CKSUM
+ * fall back to CRC32 */
+ CDEBUG(D_RPCTRACE, "%s: cli %s does not support "
+ "OBD_CONNECT_CKSUM, CRC32 will be used\n",
+ exp->exp_obd->obd_name, obd_export_nid2str(exp));
+ }
+
+ if (data->ocd_connect_flags & OBD_CONNECT_MAXBYTES)
+ data->ocd_maxbytes = ofd->ofd_dt_conf.ddp_maxbytes;
+
+ RETURN(0);
+}
+
+static int ofd_obd_reconnect(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 ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ int rc;
+
+ ENTRY;
+
+ if (exp == NULL || obd == NULL || cluuid == NULL)
+ RETURN(-EINVAL);
+
+ rc = lu_env_refill((struct lu_env *)env);
+ if (rc != 0) {
+ CERROR("Failure to refill session: '%d'\n", rc);
+ RETURN(rc);
+ }
+
+ ofd_info_init(env, exp);
+ rc = ofd_parse_connect_data(env, exp, data);
+ if (rc == 0)
+ ofd_export_stats_init(ofd, exp, localdata);
+
+ RETURN(rc);
+}
+
+static int ofd_obd_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 *exp;
+ struct ofd_device *ofd;
+ struct lustre_handle conn = { 0 };
+ int rc, group;
+
+ ENTRY;
+
+ if (_exp == NULL || obd == NULL || cluuid == NULL)
+ RETURN(-EINVAL);
+
+ ofd = ofd_dev(obd->obd_lu_dev);
+
+ rc = class_connect(&conn, obd, cluuid);
+ if (rc)
+ RETURN(rc);
+
+ exp = class_conn2export(&conn);
+ LASSERT(exp != NULL);
+
+ rc = lu_env_refill((struct lu_env *)env);
+ if (rc != 0) {
+ CERROR("Failure to refill session: '%d'\n", rc);
+ GOTO(out, rc);
+ }
+
+ ofd_info_init(env, exp);
+
+ rc = ofd_parse_connect_data(env, exp, data);
+ if (rc)
+ GOTO(out, rc);
+
+ group = data->ocd_group;
+ if (obd->obd_replayable) {
+ struct tg_export_data *ted = &exp->exp_target_data;
+
+ memcpy(ted->ted_lcd->lcd_uuid, cluuid,
+ sizeof(ted->ted_lcd->lcd_uuid));
+ rc = lut_client_new(env, exp);
+ if (rc != 0)
+ GOTO(out, rc);
+ ofd_export_stats_init(ofd, exp, localdata);
+ }
+ if (group == 0)
+ GOTO(out, rc = 0);
+
+ /* init new group */
+ if (group > ofd->ofd_max_group) {
+ ofd->ofd_max_group = group;
+ rc = ofd_group_load(env, ofd, group);
+ }
+out:
+ if (rc != 0) {
+ class_disconnect(exp);
+ *_exp = NULL;
+ } else {
+ *_exp = exp;
+ }
+ RETURN(rc);
+}
+
+static int ofd_obd_disconnect(struct obd_export *exp)
+{
+ struct lu_env env;
+ int rc;
+
+ ENTRY;
+
+ LASSERT(exp);
+ class_export_get(exp);
+
+ rc = server_disconnect_export(exp);
+
+ rc = lu_env_init(&env, LCT_DT_THREAD);
+ if (rc)
+ RETURN(rc);
+
+ /* Do not erase record for recoverable client. */
+ if (exp->exp_obd->obd_replayable &&
+ (!exp->exp_obd->obd_fail || exp->exp_failed))
+ lut_client_del(&env, exp);
+ lu_env_fini(&env);
+
+ class_export_put(exp);
+ RETURN(rc);
+}
+
+static int ofd_init_export(struct obd_export *exp)
+{
+ int rc;
+
+ cfs_spin_lock_init(&exp->exp_filter_data.fed_lock);
+ CFS_INIT_LIST_HEAD(&exp->exp_filter_data.fed_mod_list);
+ cfs_spin_lock(&exp->exp_lock);
+ exp->exp_connecting = 1;
+ cfs_spin_unlock(&exp->exp_lock);
+
+ /* self-export doesn't need client data and ldlm initialization */
+ if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid,
+ &exp->exp_client_uuid)))
+ return 0;
+
+ rc = lut_client_alloc(exp);
+ if (rc == 0)
+ ldlm_init_export(exp);
+ if (rc)
+ CERROR("%s: Can't initialize export: rc %d\n",
+ exp->exp_obd->obd_name, rc);
+ return rc;
+}
+
+static int ofd_destroy_export(struct obd_export *exp)
+{
+ if (exp->exp_filter_data.fed_pending)
+ CERROR("%s: cli %s/%p has %lu pending on destroyed export"
+ "\n", exp->exp_obd->obd_name, exp->exp_client_uuid.uuid,
+ exp, exp->exp_filter_data.fed_pending);
+
+ target_destroy_export(exp);
+
+ if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid,
+ &exp->exp_client_uuid)))
+ return 0;
+
+ ldlm_destroy_export(exp);
+ lut_client_free(exp);
+
+ LASSERT(cfs_list_empty(&exp->exp_filter_data.fed_mod_list));
+ return 0;
+}
+
+int ofd_obd_postrecov(struct obd_device *obd)
+{
+ struct lu_env env;
+ struct lu_device *ldev = obd->obd_lu_dev;
+ int rc;
+
+ ENTRY;
+
+ rc = lu_env_init(&env, LCT_DT_THREAD);
+ if (rc)
+ RETURN(rc);
+ ofd_info_init(&env, obd->obd_self_export);
+
+ rc = ldev->ld_ops->ldo_recovery_complete(&env, ldev);
+ lu_env_fini(&env);
+ RETURN(rc);
+}
+
+static int ofd_set_mds_conn(struct obd_export *exp, void *val)
+{
+ int rc = 0;
+
+ ENTRY;
+
+ LCONSOLE_WARN("%s: received MDS connection from %s\n",
+ exp->exp_obd->obd_name, obd_export_nid2str(exp));
+ RETURN(rc);
+}
+
+static int ofd_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 ofd_device *ofd = ofd_exp(exp);
+ int rc = 0;
+
+ ENTRY;
+
+ if (exp->exp_obd == NULL) {
+ CDEBUG(D_IOCTL, "invalid export %p\n", exp);
+ RETURN(-EINVAL);
+ }
+
+ if (KEY_IS(KEY_CAPA_KEY)) {
+ rc = ofd_update_capa_key(ofd, val);
+ if (rc)
+ CERROR("ofd update capability key failed: %d\n", rc);
+ } else if (KEY_IS(KEY_MDS_CONN)) {
+ rc = ofd_set_mds_conn(exp, val);
+ } else {
+ CERROR("%s: Unsupported key %s\n",
+ exp->exp_obd->obd_name, (char*)key);
+ rc = -EOPNOTSUPP;
+ }
+
+ RETURN(rc);
+}
+
+static int ofd_get_info(const struct lu_env *env, struct obd_export *exp,
+ __u32 keylen, void *key, __u32 *vallen, void *val,
+ struct lov_stripe_md *lsm)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ int rc = 0;
+
+ ENTRY;
+
+ if (exp->exp_obd == NULL) {
+ CDEBUG(D_IOCTL, "invalid client export %p\n", exp);
+ RETURN(-EINVAL);
+ }
+
+ if (KEY_IS(KEY_BLOCKSIZE)) {
+ __u32 *blocksize = val;
+ if (blocksize) {
+ if (*vallen < sizeof(*blocksize))
+ RETURN(-EOVERFLOW);
+ *blocksize = 1 << ofd->ofd_dt_conf.ddp_block_shift;
+ }
+ *vallen = sizeof(*blocksize);
+ } else if (KEY_IS(KEY_BLOCKSIZE_BITS)) {
+ __u32 *blocksize_bits = val;
+ if (blocksize_bits) {
+ if (*vallen < sizeof(*blocksize_bits))
+ RETURN(-EOVERFLOW);
+ *blocksize_bits = ofd->ofd_dt_conf.ddp_block_shift;
+ }
+ *vallen = sizeof(*blocksize_bits);
+ } else if (KEY_IS(KEY_LAST_ID)) {
+ obd_id *last_id = val;
+ if (last_id) {
+ if (*vallen < sizeof(*last_id))
+ RETURN(-EOVERFLOW);
+ *last_id = ofd_last_id(ofd,
+ exp->exp_filter_data.fed_group);
+ }
+ *vallen = sizeof(*last_id);
+ } else {
+ CERROR("Not supported key %s\n", (char*)key);
+ rc = -EOPNOTSUPP;
+ }
+
+ RETURN(rc);
+}
+
+/** helper function for statfs, also used by grant code */
+int ofd_statfs_internal(const struct lu_env *env, struct ofd_device *ofd,
+ struct obd_statfs *osfs, __u64 max_age, int *from_cache)
+{
+ int rc;
+
+ rc = dt_statfs(env, ofd->ofd_osd, osfs);
+ if (unlikely(rc))
+ return rc;
+
+ return 0;
+}
+
+static int ofd_statfs(const struct lu_env *env, struct obd_export *exp,
+ struct obd_statfs *osfs, __u64 max_age, __u32 flags)
+{
+ struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
+ int rc;
+
+ ENTRY;
+
+ rc = ofd_statfs_internal(env, ofd, osfs, max_age, NULL);
+ if (unlikely(rc))
+ GOTO(out, rc);
+
+ if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOSPC,
+ ofd->ofd_lut.lut_lsd.lsd_ost_index))
+ osfs->os_bfree = osfs->os_bavail = 2;
+
+ if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOINO,
+ ofd->ofd_lut.lut_lsd.lsd_ost_index))
+ osfs->os_ffree = 0;
+
+ /* OS_STATE_READONLY can be set by OSD already */
+ if (ofd->ofd_raid_degraded)
+ osfs->os_state |= OS_STATE_DEGRADED;
+ EXIT;
+out:
+ return rc;
+}
+
+static int ofd_sync(const struct lu_env *env, struct obd_export *exp,
+ struct obd_info *oinfo, obd_size start, obd_size end,
+ struct ptlrpc_request_set *set)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ int rc = 0;
+
+ ENTRY;
+
+ /* if no objid is specified, it means "sync whole filesystem" */
+ if (oinfo->oi_oa == NULL || !(oinfo->oi_oa->o_valid & OBD_MD_FLID)) {
+ rc = dt_sync(env, ofd->ofd_osd);
+ GOTO(out, rc);
+ }
+
+ EXIT;
+out:
+ return rc;
+}
+
+int ofd_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
+ void *karg, void *uarg)
+{
+ struct lu_env env;
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct obd_device *obd = ofd_obd(ofd);
+ int rc;
+
+ ENTRY;
+
+ CDEBUG(D_IOCTL, "handling ioctl cmd %#x\n", cmd);
+ rc = lu_env_init(&env, LCT_LOCAL);
+ if (rc)
+ RETURN(rc);
+
+ switch (cmd) {
+ case OBD_IOC_ABORT_RECOVERY:
+ CERROR("aborting recovery for device %s\n", obd->obd_name);
+ target_stop_recovery_thread(obd);
+ break;
+ case OBD_IOC_SYNC:
+ CDEBUG(D_RPCTRACE, "syncing ost %s\n", obd->obd_name);
+ rc = dt_sync(&env, ofd->ofd_osd);
+ break;
+ case OBD_IOC_SET_READONLY:
+ rc = dt_sync(&env, ofd->ofd_osd);
+ if (rc == 0)
+ rc = dt_ro(&env, ofd->ofd_osd);
+ break;
+ default:
+ CERROR("Not supported cmd = %d for device %s\n",
+ cmd, obd->obd_name);
+ rc = -ENOTTY;
+ }
+
+ lu_env_fini(&env);
+ RETURN(rc);
+}
+
+static int ofd_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
+{
+ int rc = 0;
+
+ ENTRY;
+
+ switch(stage) {
+ case OBD_CLEANUP_EARLY:
+ break;
+ case OBD_CLEANUP_EXPORTS:
+ target_cleanup_recovery(obd);
+ break;
+ }
+ RETURN(rc);
+}
+
+static int ofd_ping(const struct lu_env *env, struct obd_export *exp)
+{
+ return 0;
+}
+
+static int ofd_health_check(const struct lu_env *env, struct obd_device *obd)
+{
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ struct ofd_thread_info *info;
+#ifdef USE_HEALTH_CHECK_WRITE
+ struct thandle *th;
+#endif
+ int rc = 0;
+
+ info = ofd_info_init(env, NULL);
+ rc = dt_statfs(env, ofd->ofd_osd, &info->fti_u.osfs);
+ if (unlikely(rc))
+ GOTO(out, rc);
+
+ if (info->fti_u.osfs.os_state == OS_STATE_READONLY)
+ GOTO(out, rc = -EROFS);
+
+#ifdef USE_HEALTH_CHECK_WRITE
+ OBD_ALLOC(info->fti_buf.lb_buf, CFS_PAGE_SIZE);
+ if (info->fti_buf.lb_buf == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ info->fti_buf.lb_len = CFS_PAGE_SIZE;
+ info->fti_off = 0;
+
+ th = dt_trans_create(env, ofd->ofd_osd);
+ if (IS_ERR(th))
+ GOTO(out, rc = PTR_ERR(th));
+
+ rc = dt_declare_record_write(env, ofd->ofd_health_check_file,
+ info->fti_buf.lb_len, info->fti_off, th);
+ if (rc == 0) {
+ th->th_sync = 1; /* sync IO is needed */
+ rc = dt_trans_start_local(env, ofd->ofd_osd, th);
+ if (rc == 0)
+ rc = dt_record_write(env, ofd->ofd_health_check_file,
+ &info->fti_buf, &info->fti_off,
+ th);
+ }
+ dt_trans_stop(env, ofd->ofd_osd, th);
+
+ OBD_FREE(info->fti_buf.lb_buf, CFS_PAGE_SIZE);
+
+ CDEBUG(D_INFO, "write 1 page synchronously for checking io rc %d\n",rc);
+#endif
+out:
+ return !!rc;
+}
static int ofd_obd_notify(struct obd_device *obd, struct obd_device *unused,
enum obd_notify_event ev, void *data)
}
struct obd_ops ofd_obd_ops = {
- .o_owner = THIS_MODULE,
- .o_notify = ofd_obd_notify,
+ .o_owner = THIS_MODULE,
+ .o_connect = ofd_obd_connect,
+ .o_reconnect = ofd_obd_reconnect,
+ .o_disconnect = ofd_obd_disconnect,
+ .o_set_info_async = ofd_set_info_async,
+ .o_get_info = ofd_get_info,
+ .o_statfs = ofd_statfs,
+ .o_init_export = ofd_init_export,
+ .o_destroy_export = ofd_destroy_export,
+ .o_postrecov = ofd_obd_postrecov,
+ .o_sync = ofd_sync,
+ .o_iocontrol = ofd_iocontrol,
+ .o_precleanup = ofd_precleanup,
+ .o_ping = ofd_ping,
+ .o_health_check = ofd_health_check,
+ .o_notify = ofd_obd_notify,
};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff