#define DEBUG_SUBSYSTEM S_FILTER
#include "ofd_internal.h"
+#include <obd_cksum.h>
+#include <lustre_quota.h>
-static int ofd_obd_notify(struct obd_device *obd, struct obd_device *unused,
- enum obd_notify_event ev, void *data)
+static int ofd_export_stats_init(struct ofd_device *ofd,
+ struct obd_export *exp, void *client_nid)
{
- switch (ev) {
- case OBD_NOTIFY_CONFIG:
- LASSERT(obd->obd_no_conn);
- cfs_spin_lock(&obd->obd_dev_lock);
- obd->obd_no_conn = 0;
- cfs_spin_unlock(&obd->obd_dev_lock);
+ 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++)
+ 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 (ofd_grant_param_supp(exp)) {
+ exp->exp_filter_data.fed_pagesize = data->ocd_blocksize;
+ /* ocd_{blocksize,inodespace} are log2 values */
+ data->ocd_blocksize = ofd->ofd_blockbits;
+ data->ocd_inodespace = ofd->ofd_dt_conf.ddp_inodespace;
+ /* ocd_grant_extent is in 1K blocks */
+ data->ocd_grant_extent = ofd->ofd_dt_conf.ddp_grant_frag >> 10;
+ }
+
+ if (exp->exp_connect_flags & OBD_CONNECT_GRANT)
+ data->ocd_grant = ofd_grant_connect(env, exp, data->ocd_grant);
+
+ 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 */
+ tgt_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_server();
+
+ 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 = tgt_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 ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
+ struct lu_env env;
+ int rc;
+
+ ENTRY;
+
+ LASSERT(exp);
+ class_export_get(exp);
+
+ if (!(exp->exp_flags & OBD_OPT_FORCE))
+ ofd_grant_sanity_check(ofd_obd(ofd), __FUNCTION__);
+
+ rc = server_disconnect_export(exp);
+
+ ofd_grant_discard(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))
+ tgt_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;
+
+ spin_lock_init(&exp->exp_filter_data.fed_lock);
+ CFS_INIT_LIST_HEAD(&exp->exp_filter_data.fed_mod_list);
+ spin_lock(&exp->exp_lock);
+ exp->exp_connecting = 1;
+ 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 = tgt_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)
+{
+ struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
+
+ 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);
+ tgt_client_free(exp);
+
+ ofd_fmd_cleanup(exp);
+
+ /*
+ * discard grants once we're sure no more
+ * interaction with the client is possible
+ */
+ ofd_grant_discard(exp);
+ ofd_fmd_cleanup(exp);
+
+ if (exp->exp_connect_flags & OBD_CONNECT_GRANT_SHRINK) {
+ if (ofd->ofd_tot_granted_clients > 0)
+ ofd->ofd_tot_granted_clients --;
+ }
+
+ if (!(exp->exp_flags & OBD_OPT_FORCE))
+ ofd_grant_sanity_check(exp->exp_obd, __FUNCTION__);
+
+ LASSERT(cfs_list_empty(&exp->exp_filter_data.fed_mod_list));
+ return 0;
+}
+
+int ofd_postrecov(const struct lu_env *env, struct ofd_device *ofd)
+{
+ struct lu_device *ldev = &ofd->ofd_dt_dev.dd_lu_dev;
+
+ CDEBUG(D_HA, "%s: recovery is over\n", ofd_obd(ofd)->obd_name);
+ return ldev->ld_ops->ldo_recovery_complete(env, ldev);
+}
+
+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 = ofd_postrecov(&env, ofd_dev(ldev));
+
+ lu_env_fini(&env);
+ RETURN(rc);
+}
+
+static int ofd_adapt_sptlrpc_conf(const struct lu_env *env,
+ struct obd_device *obd, int initial)
+{
+ struct filter_obd *fo = &obd->u.filter;
+ struct sptlrpc_rule_set tmp_rset;
+ int rc;
+
+ sptlrpc_rule_set_init(&tmp_rset);
+ rc = sptlrpc_conf_target_get_rules(obd, &tmp_rset, initial);
+ if (rc) {
+ CERROR("%s: failed get sptlrpc rules: rc = %d\n",
+ obd->obd_name, rc);
+ return rc;
+ }
+
+ sptlrpc_target_update_exp_flavor(obd, &tmp_rset);
+
+ write_lock(&fo->fo_sptlrpc_lock);
+ sptlrpc_rule_set_free(&fo->fo_sptlrpc_rset);
+ fo->fo_sptlrpc_rset = tmp_rset;
+ write_unlock(&fo->fo_sptlrpc_lock);
+
+ return 0;
+}
+
+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("%s: update capability key failed: rc = %d\n",
+ exp->exp_obd->obd_name, rc);
+ } else if (KEY_IS(KEY_SPTLRPC_CONF)) {
+ ofd_adapt_sptlrpc_conf(env, exp->exp_obd, 0);
+ } else if (KEY_IS(KEY_MDS_CONN)) {
+ rc = ofd_set_mds_conn(exp, val);
+ } else if (KEY_IS(KEY_GRANT_SHRINK)) {
+ struct ost_body *body = val;
+
+ ofd_info_init(env, exp);
+ /** handle grant shrink, similar to a read request */
+ ofd_grant_prepare_read(env, exp, &body->oa);
+ } 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 if (KEY_IS(KEY_FIEMAP)) {
+ struct ofd_thread_info *info;
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct ofd_object *fo;
+ struct ll_fiemap_info_key *fm_key = key;
+
+ if (val == NULL) {
+ *vallen = fiemap_count_to_size(
+ fm_key->fiemap.fm_extent_count);
+ RETURN(0);
+ }
+
+ info = ofd_info_init(env, exp);
+
+ fid_ostid_unpack(&info->fti_fid, &fm_key->oa.o_oi, 0);
+
+ CDEBUG(D_INODE, "get FIEMAP of object "DFID"\n",
+ PFID(&info->fti_fid));
+
+ fo = ofd_object_find(env, ofd, &info->fti_fid);
+ if (IS_ERR(fo)) {
+ CERROR("%s: error finding object "DFID"\n",
+ exp->exp_obd->obd_name, PFID(&info->fti_fid));
+ rc = PTR_ERR(fo);
+ } else {
+ struct ll_user_fiemap *fiemap = val;
+
+ ofd_read_lock(env, fo);
+ if (ofd_object_exists(fo)) {
+ *fiemap = fm_key->fiemap;
+ rc = dt_fiemap_get(env,
+ ofd_object_child(fo),
+ fiemap);
+ } else {
+ rc = -ENOENT;
+ }
+ ofd_read_unlock(env, fo);
+ ofd_object_put(env, fo);
+ }
+ } else if (KEY_IS(KEY_SYNC_LOCK_CANCEL)) {
+ *((__u32 *) val) = ofd->ofd_sync_lock_cancel;
+ *vallen = sizeof(__u32);
+ } 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;
+
+ spin_lock(&ofd->ofd_osfs_lock);
+ if (cfs_time_before_64(ofd->ofd_osfs_age, max_age) || max_age == 0) {
+ obd_size unstable;
+
+ /* statfs data are too old, get up-to-date one.
+ * we must be cautious here since multiple threads might be
+ * willing to update statfs data concurrently and we must
+ * grant that cached statfs data are always consistent */
+
+ if (ofd->ofd_statfs_inflight == 0)
+ /* clear inflight counter if no users, although it would
+ * take a while to overflow this 64-bit counter ... */
+ ofd->ofd_osfs_inflight = 0;
+ /* notify ofd_grant_commit() that we want to track writes
+ * completed as of now */
+ ofd->ofd_statfs_inflight++;
+ /* record value of inflight counter before running statfs to
+ * compute the diff once statfs is completed */
+ unstable = ofd->ofd_osfs_inflight;
+ spin_unlock(&ofd->ofd_osfs_lock);
+
+ /* statfs can sleep ... hopefully not for too long since we can
+ * call it fairly often as space fills up */
+ rc = dt_statfs(env, ofd->ofd_osd, osfs);
+ if (unlikely(rc))
+ return rc;
+
+ spin_lock(&ofd->ofd_grant_lock);
+ spin_lock(&ofd->ofd_osfs_lock);
+ /* calculate how much space was written while we released the
+ * ofd_osfs_lock */
+ unstable = ofd->ofd_osfs_inflight - unstable;
+ ofd->ofd_osfs_unstable = 0;
+ if (unstable) {
+ /* some writes completed while we were running statfs
+ * w/o the ofd_osfs_lock. Those ones got added to
+ * the cached statfs data that we are about to crunch.
+ * Take them into account in the new statfs data */
+ osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
+ unstable >> ofd->ofd_blockbits);
+ /* However, we don't really know if those writes got
+ * accounted in the statfs call, so tell
+ * ofd_grant_space_left() there is some uncertainty
+ * on the accounting of those writes.
+ * The purpose is to prevent spurious error messages in
+ * ofd_grant_space_left() since those writes might be
+ * accounted twice. */
+ ofd->ofd_osfs_unstable += unstable;
+ }
+ /* similarly, there is some uncertainty on write requests
+ * between prepare & commit */
+ ofd->ofd_osfs_unstable += ofd->ofd_tot_pending;
+ spin_unlock(&ofd->ofd_grant_lock);
+
+ /* finally udpate cached statfs data */
+ ofd->ofd_osfs = *osfs;
+ ofd->ofd_osfs_age = cfs_time_current_64();
+
+ ofd->ofd_statfs_inflight--; /* stop tracking */
+ if (ofd->ofd_statfs_inflight == 0)
+ ofd->ofd_osfs_inflight = 0;
+ spin_unlock(&ofd->ofd_osfs_lock);
+
+ if (from_cache)
+ *from_cache = 0;
+ } else {
+ /* use cached statfs data */
+ *osfs = ofd->ofd_osfs;
+ spin_unlock(&ofd->ofd_osfs_lock);
+ if (from_cache)
+ *from_cache = 1;
+ }
+ 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 obd_device *obd = class_exp2obd(exp);
+ 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);
+
+ /* at least try to account for cached pages. its still racy and
+ * might be under-reporting if clients haven't announced their
+ * caches with brw recently */
+
+ CDEBUG(D_SUPER | D_CACHE, "blocks cached "LPU64" granted "LPU64
+ " pending "LPU64" free "LPU64" avail "LPU64"\n",
+ ofd->ofd_tot_dirty, ofd->ofd_tot_granted, ofd->ofd_tot_pending,
+ osfs->os_bfree << ofd->ofd_blockbits,
+ osfs->os_bavail << ofd->ofd_blockbits);
+
+ osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
+ ((ofd->ofd_tot_dirty + ofd->ofd_tot_pending +
+ osfs->os_bsize - 1) >> ofd->ofd_blockbits));
+
+ /* The QoS code on the MDS does not care about space reserved for
+ * precreate, so take it out. */
+ if (exp->exp_connect_flags & OBD_CONNECT_MDS) {
+ struct filter_export_data *fed;
+
+ fed = &obd->obd_self_export->exp_filter_data;
+ osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
+ fed->fed_grant >> ofd->ofd_blockbits);
+ }
+
+ ofd_grant_sanity_check(obd, __FUNCTION__);
+ CDEBUG(D_CACHE, LPU64" blocks: "LPU64" free, "LPU64" avail; "
+ LPU64" objects: "LPU64" free; state %x\n",
+ osfs->os_blocks, osfs->os_bfree, osfs->os_bavail,
+ osfs->os_files, osfs->os_ffree, osfs->os_state);
+
+ 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;
+
+ if (obd->obd_self_export != exp && ofd_grant_compat(exp, ofd)) {
+ /* clients which don't support OBD_CONNECT_GRANT_PARAM
+ * should not see a block size > page size, otherwise
+ * cl_lost_grant goes mad. Therefore, we emulate a 4KB (=2^12)
+ * block size which is the biggest block size known to work
+ * with all client's page size. */
+ osfs->os_blocks <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
+ osfs->os_bfree <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
+ osfs->os_bavail <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
+ osfs->os_bsize = 1 << COMPAT_BSIZE_SHIFT;
+ }
+
+ if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOSPC,
+ ofd->ofd_lut.lut_lsd.lsd_ost_index))
+ osfs->os_bfree = osfs->os_bavail = 2;
+
+ EXIT;
+out:
+ return rc;
+}
+
+int ofd_setattr(const struct lu_env *env, struct obd_export *exp,
+ struct obd_info *oinfo, struct obd_trans_info *oti)
+{
+ struct ofd_thread_info *info;
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct ldlm_namespace *ns = ofd->ofd_namespace;
+ struct ldlm_resource *res;
+ struct ofd_object *fo;
+ struct obdo *oa = oinfo->oi_oa;
+ struct filter_fid *ff = NULL;
+ int rc = 0;
+
+ ENTRY;
+
+ info = ofd_info_init(env, exp);
+ ofd_oti2info(info, oti);
+
+ fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
+ ofd_build_resid(&info->fti_fid, &info->fti_resid);
+
+ rc = ofd_auth_capa(exp, &info->fti_fid, oa->o_seq,
+ oinfo_capa(oinfo), CAPA_OPC_META_WRITE);
+ if (rc)
+ GOTO(out, rc);
+
+ /* This would be very bad - accidentally truncating a file when
+ * changing the time or similar - bug 12203. */
+ if (oinfo->oi_oa->o_valid & OBD_MD_FLSIZE &&
+ oinfo->oi_policy.l_extent.end != OBD_OBJECT_EOF) {
+ static char mdsinum[48];
+
+ if (oinfo->oi_oa->o_valid & OBD_MD_FLFID)
+ snprintf(mdsinum, sizeof(mdsinum) - 1,
+ "of parent "DFID, oinfo->oi_oa->o_parent_seq,
+ oinfo->oi_oa->o_parent_oid, 0);
+ else
+ mdsinum[0] = '\0';
+
+ CERROR("%s: setattr from %s trying to truncate object "DFID
+ " %s\n", exp->exp_obd->obd_name,
+ obd_export_nid2str(exp), PFID(&info->fti_fid), mdsinum);
+ GOTO(out, rc = -EPERM);
+ }
+
+ fo = ofd_object_find(env, ofd, &info->fti_fid);
+ if (IS_ERR(fo)) {
+ CERROR("%s: can't find object "DFID"\n",
+ exp->exp_obd->obd_name, PFID(&info->fti_fid));
+ GOTO(out, rc = PTR_ERR(fo));
+ }
+
+ la_from_obdo(&info->fti_attr, oinfo->oi_oa, oinfo->oi_oa->o_valid);
+ info->fti_attr.la_valid &= ~LA_TYPE;
+
+ if (oa->o_valid & OBD_MD_FLFID) {
+ ff = &info->fti_mds_fid;
+ ofd_prepare_fidea(ff, oa);
+ }
+
+ /* setting objects attributes (including owner/group) */
+ rc = ofd_attr_set(env, fo, &info->fti_attr, ff);
+ if (rc)
+ GOTO(out_unlock, rc);
+
+ res = ldlm_resource_get(ns, NULL, &info->fti_resid, LDLM_EXTENT, 0);
+ if (res != NULL) {
+ ldlm_res_lvbo_update(res, NULL, 0);
+ ldlm_resource_putref(res);
+ }
+
+ oinfo->oi_oa->o_valid = OBD_MD_FLID;
+
+ /* Quota release needs uid/gid info */
+ rc = ofd_attr_get(env, fo, &info->fti_attr);
+ obdo_from_la(oinfo->oi_oa, &info->fti_attr,
+ OFD_VALID_FLAGS | LA_UID | LA_GID);
+ ofd_info2oti(info, oti);
+
+ ofd_counter_incr(exp, LPROC_OFD_STATS_SETATTR, oti->oti_jobid, 1);
+ EXIT;
+out_unlock:
+ ofd_object_put(env, fo);
+out:
+ return rc;
+}
+
+static int ofd_punch(const struct lu_env *env, struct obd_export *exp,
+ struct obd_info *oinfo, struct obd_trans_info *oti,
+ struct ptlrpc_request_set *rqset)
+{
+ struct ofd_thread_info *info;
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct ldlm_namespace *ns = ofd->ofd_namespace;
+ struct ldlm_resource *res;
+ struct ofd_object *fo;
+ struct filter_fid *ff = NULL;
+ int rc = 0;
+
+ ENTRY;
+
+ info = ofd_info_init(env, exp);
+ ofd_oti2info(info, oti);
+
+ fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
+ ofd_build_resid(&info->fti_fid, &info->fti_resid);
+
+ CDEBUG(D_INODE, "calling punch for object "DFID", valid = "LPX64
+ ", start = "LPD64", end = "LPD64"\n", PFID(&info->fti_fid),
+ oinfo->oi_oa->o_valid, oinfo->oi_policy.l_extent.start,
+ oinfo->oi_policy.l_extent.end);
+
+ rc = ofd_auth_capa(exp, &info->fti_fid, oinfo->oi_oa->o_seq,
+ oinfo_capa(oinfo), CAPA_OPC_OSS_TRUNC);
+ if (rc)
+ GOTO(out_env, rc);
+
+ fo = ofd_object_find(env, ofd, &info->fti_fid);
+ if (IS_ERR(fo)) {
+ CERROR("%s: error finding object "DFID": rc = %ld\n",
+ exp->exp_obd->obd_name, PFID(&info->fti_fid),
+ PTR_ERR(fo));
+ GOTO(out_env, rc = PTR_ERR(fo));
+ }
+
+ LASSERT(oinfo->oi_policy.l_extent.end == OBD_OBJECT_EOF);
+ if (oinfo->oi_policy.l_extent.end == OBD_OBJECT_EOF) {
+ /* Truncate case */
+ oinfo->oi_oa->o_size = oinfo->oi_policy.l_extent.start;
+ } else if (oinfo->oi_policy.l_extent.end >= oinfo->oi_oa->o_size) {
+ oinfo->oi_oa->o_size = oinfo->oi_policy.l_extent.end;
+ }
+
+ la_from_obdo(&info->fti_attr, oinfo->oi_oa,
+ OBD_MD_FLMTIME | OBD_MD_FLATIME | OBD_MD_FLCTIME);
+ info->fti_attr.la_valid &= ~LA_TYPE;
+ info->fti_attr.la_size = oinfo->oi_policy.l_extent.start;
+ info->fti_attr.la_valid |= LA_SIZE;
+
+ if (oinfo->oi_oa->o_valid & OBD_MD_FLFID) {
+ ff = &info->fti_mds_fid;
+ ofd_prepare_fidea(ff, oinfo->oi_oa);
+ }
+
+ rc = ofd_object_punch(env, fo, oinfo->oi_policy.l_extent.start,
+ oinfo->oi_policy.l_extent.end, &info->fti_attr,
+ ff);
+ if (rc)
+ GOTO(out, rc);
+
+ res = ldlm_resource_get(ns, NULL, &info->fti_resid, LDLM_EXTENT, 0);
+ if (res != NULL) {
+ ldlm_res_lvbo_update(res, NULL, 0);
+ ldlm_resource_putref(res);
+ }
+
+ oinfo->oi_oa->o_valid = OBD_MD_FLID;
+ /* Quota release needs uid/gid info */
+ rc = ofd_attr_get(env, fo, &info->fti_attr);
+ obdo_from_la(oinfo->oi_oa, &info->fti_attr,
+ OFD_VALID_FLAGS | LA_UID | LA_GID);
+ ofd_info2oti(info, oti);
+
+ ofd_counter_incr(exp, LPROC_OFD_STATS_PUNCH, oti->oti_jobid, 1);
+ EXIT;
+out:
+ ofd_object_put(env, fo);
+out_env:
+ return rc;
+}
+
+static int ofd_destroy_by_fid(const struct lu_env *env,
+ struct ofd_device *ofd,
+ const struct lu_fid *fid, int orphan)
+{
+ struct ofd_thread_info *info = ofd_info(env);
+ struct lustre_handle lockh;
+ __u64 flags = LDLM_AST_DISCARD_DATA, rc = 0;
+ ldlm_policy_data_t policy = {
+ .l_extent = { 0, OBD_OBJECT_EOF }
+ };
+ struct ofd_object *fo;
+
+ ENTRY;
+
+ fo = ofd_object_find(env, ofd, fid);
+ if (IS_ERR(fo))
+ RETURN(PTR_ERR(fo));
+
+ /* Tell the clients that the object is gone now and that they should
+ * throw away any cached pages. */
+ ofd_build_resid(fid, &info->fti_resid);
+ rc = ldlm_cli_enqueue_local(ofd->ofd_namespace, &info->fti_resid,
+ LDLM_EXTENT, &policy, LCK_PW, &flags,
+ ldlm_blocking_ast, ldlm_completion_ast,
+ NULL, NULL, 0, LVB_T_NONE, NULL, &lockh);
+
+ /* We only care about the side-effects, just drop the lock. */
+ if (rc == ELDLM_OK)
+ ldlm_lock_decref(&lockh, LCK_PW);
+
+ LASSERT(fo != NULL);
+
+ rc = ofd_object_destroy(env, fo, orphan);
+
+ ofd_object_put(env, fo);
+ RETURN(rc);
+}
+
+int ofd_destroy(const struct lu_env *env, struct obd_export *exp,
+ struct obdo *oa, struct lov_stripe_md *md,
+ struct obd_trans_info *oti, struct obd_export *md_exp,
+ void *capa)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct ofd_thread_info *info;
+ obd_count count;
+ int rc = 0;
+
+ ENTRY;
+
+ info = ofd_info_init(env, exp);
+ ofd_oti2info(info, oti);
+
+ if (!(oa->o_valid & OBD_MD_FLGROUP))
+ oa->o_seq = 0;
+
+ /* check that o_misc makes sense */
+ if (oa->o_valid & OBD_MD_FLOBJCOUNT)
+ count = oa->o_misc;
+ else
+ count = 1; /* default case - single destroy */
+
+ /**
+ * There can be sequence of objects to destroy. Therefore this request
+ * may have multiple transaction involved in. It is OK, we need only
+ * the highest used transno to be reported back in reply but not for
+ * replays, they must report their transno
+ */
+ if (info->fti_transno == 0) /* not replay */
+ info->fti_mult_trans = 1;
+ while (count > 0) {
+ int lrc;
+
+ fid_ostid_unpack(&info->fti_fid, &oa->o_oi, 0);
+ lrc = ofd_destroy_by_fid(env, ofd, &info->fti_fid, 0);
+ if (lrc == -ENOENT) {
+ CDEBUG(D_INODE,
+ "%s: destroying non-existent object "DFID"\n",
+ ofd_obd(ofd)->obd_name, PFID(&info->fti_fid));
+ /* rewrite rc with -ENOENT only if it is 0 */
+ if (rc == 0)
+ rc = lrc;
+ } else if (lrc != 0) {
+ CERROR("%s: error destroying object "DFID": %d\n",
+ ofd_obd(ofd)->obd_name, PFID(&info->fti_fid),
+ rc);
+ rc = lrc;
+ }
+ count--;
+ oa->o_id++;
+ }
+
+ /* if we have transaction then there were some deletions, we don't
+ * need to return ENOENT in that case because it will not wait
+ * for commit of these deletions. The ENOENT must be returned only
+ * if there were no transations.
+ */
+ if (rc == -ENOENT) {
+ if (info->fti_transno != 0)
+ rc = 0;
+ } else if (rc != 0) {
+ /*
+ * If we have at least one transaction then llog record
+ * on server will be removed upon commit, so for rc != 0
+ * we return no transno and llog record will be reprocessed.
+ */
+ info->fti_transno = 0;
+ }
+ ofd_info2oti(info, oti);
+ RETURN(rc);
+}
+
+static int ofd_orphans_destroy(const struct lu_env *env,
+ struct obd_export *exp, struct ofd_device *ofd,
+ struct obdo *oa)
+{
+ struct ofd_thread_info *info = ofd_info(env);
+ obd_id last;
+ int skip_orphan;
+ int rc = 0;
+ struct ost_id oi = oa->o_oi;
+
+ ENTRY;
+
+ LASSERT(exp != NULL);
+ skip_orphan = !!(exp->exp_connect_flags & OBD_CONNECT_SKIP_ORPHAN);
+
+ last = ofd_last_id(ofd, oa->o_seq);
+ LCONSOLE_INFO("%s: deleting orphan objects from "LPU64" to "LPU64"\n",
+ ofd_obd(ofd)->obd_name, oa->o_id + 1, last);
+
+ for (oi.oi_id = last; oi.oi_id > oa->o_id; oi.oi_id--) {
+ fid_ostid_unpack(&info->fti_fid, &oi, 0);
+ rc = ofd_destroy_by_fid(env, ofd, &info->fti_fid, 1);
+ if (rc && rc != -ENOENT) /* this is pretty fatal... */
+ CEMERG("error destroying precreated id "LPU64": %d\n",
+ oi.oi_id, rc);
+ if (!skip_orphan) {
+ ofd_last_id_set(ofd, oi.oi_id - 1, oa->o_seq);
+ /* update last_id on disk periodically so that if we
+ * restart * we don't need to re-scan all of the just
+ * deleted objects. */
+ if ((oi.oi_id & 511) == 0)
+ ofd_last_id_write(env, ofd, oa->o_seq);
+ }
+ }
+ CDEBUG(D_HA, "%s: after destroy: set last_objids["LPU64"] = "LPU64"\n",
+ ofd_obd(ofd)->obd_name, oa->o_seq, oa->o_id);
+ if (!skip_orphan) {
+ rc = ofd_last_id_write(env, ofd, oa->o_seq);
+ } else {
+ /* don't reuse orphan object, return last used objid */
+ oa->o_id = last;
+ rc = 0;
+ }
+ RETURN(rc);
+}
+
+int ofd_create(const struct lu_env *env, struct obd_export *exp,
+ struct obdo *oa, struct lov_stripe_md **ea,
+ struct obd_trans_info *oti)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct ofd_thread_info *info;
+ int rc = 0, diff;
+
+ ENTRY;
+
+ info = ofd_info_init(env, exp);
+ ofd_oti2info(info, oti);
+
+ LASSERT(oa->o_seq >= FID_SEQ_OST_MDT0);
+ LASSERT(oa->o_valid & OBD_MD_FLGROUP);
+
+ CDEBUG(D_INFO, "ofd_create(oa->o_seq="LPU64",oa->o_id="LPU64")\n",
+ oa->o_seq, oa->o_id);
+
+ if ((oa->o_valid & OBD_MD_FLFLAGS) &&
+ (oa->o_flags & OBD_FL_RECREATE_OBJS)) {
+ if (!ofd_obd(ofd)->obd_recovering ||
+ oa->o_id > ofd_last_id(ofd, oa->o_seq)) {
+ CERROR("recreate objid "LPU64" > last id "LPU64"\n",
+ oa->o_id, ofd_last_id(ofd, oa->o_seq));
+ GOTO(out_nolock, rc = -EINVAL);
+ }
+ /* do nothing because we create objects during first write */
+ GOTO(out_nolock, rc = 0);
+ }
+ /* former ofd_handle_precreate */
+ if ((oa->o_valid & OBD_MD_FLFLAGS) &&
+ (oa->o_flags & OBD_FL_DELORPHAN)) {
+ /* destroy orphans */
+ if (oti->oti_conn_cnt < exp->exp_conn_cnt) {
+ CERROR("%s: dropping old orphan cleanup request\n",
+ ofd_obd(ofd)->obd_name);
+ GOTO(out_nolock, rc = 0);
+ }
+ /* This causes inflight precreates to abort and drop lock */
+ set_bit(oa->o_seq, &ofd->ofd_destroys_in_progress);
+ mutex_lock(&ofd->ofd_create_locks[oa->o_seq]);
+ if (!test_bit(oa->o_seq, &ofd->ofd_destroys_in_progress)) {
+ CERROR("%s:["LPU64"] destroys_in_progress already cleared\n",
+ exp->exp_obd->obd_name, oa->o_seq);
+ GOTO(out, rc = 0);
+ }
+ diff = oa->o_id - ofd_last_id(ofd, oa->o_seq);
+ CDEBUG(D_HA, "ofd_last_id() = "LPU64" -> diff = %d\n",
+ ofd_last_id(ofd, oa->o_seq), diff);
+ if (-diff > OST_MAX_PRECREATE) {
+ /* FIXME: should reset precreate_next_id on MDS */
+ rc = 0;
+ } else if (diff < 0) {
+ rc = ofd_orphans_destroy(env, exp, ofd, oa);
+ clear_bit(oa->o_seq, &ofd->ofd_destroys_in_progress);
+ } else {
+ /* XXX: Used by MDS for the first time! */
+ clear_bit(oa->o_seq, &ofd->ofd_destroys_in_progress);
+ }
+ } else {
+ mutex_lock(&ofd->ofd_create_locks[oa->o_seq]);
+ if (oti->oti_conn_cnt < exp->exp_conn_cnt) {
+ CERROR("%s: dropping old precreate request\n",
+ ofd_obd(ofd)->obd_name);
+ GOTO(out, rc = 0);
+ }
+ /* only precreate if group == 0 and o_id is specfied */
+ if (!fid_seq_is_mdt(oa->o_seq) || oa->o_id == 0) {
+ diff = 1; /* shouldn't we create this right now? */
+ } else {
+ diff = oa->o_id - ofd_last_id(ofd, oa->o_seq);
+ }
+ }
+ if (diff > 0) {
+ cfs_time_t enough_time = cfs_time_shift(DISK_TIMEOUT);
+ obd_id next_id;
+ int created = 0;
+ int count;
+
+ if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
+ !(oa->o_flags & OBD_FL_DELORPHAN)) {
+ /* don't enforce grant during orphan recovery */
+ rc = ofd_grant_create(env,
+ ofd_obd(ofd)->obd_self_export,
+ &diff);
+ if (rc) {
+ CDEBUG(D_HA, "%s: failed to acquire grant space"
+ "for precreate (%d)\n",
+ ofd_obd(ofd)->obd_name, diff);
+ diff = 0;
+ }
+ }
+
+ while (diff > 0) {
+ next_id = ofd_last_id(ofd, oa->o_seq) + 1;
+ count = ofd_precreate_batch(ofd, diff);
+
+ CDEBUG(D_HA, "%s: reserve %d objects in group "LPU64
+ " at "LPU64"\n", ofd_obd(ofd)->obd_name,
+ count, oa->o_seq, next_id);
+
+ if (cfs_time_after(jiffies, enough_time)) {
+ LCONSOLE_WARN("%s: Slow creates, %d/%d objects"
+ " created at a rate of %d/s\n",
+ ofd_obd(ofd)->obd_name,
+ created, diff + created,
+ created / DISK_TIMEOUT);
+ break;
+ }
+
+ rc = ofd_precreate_objects(env, ofd, next_id,
+ oa->o_seq, count);
+ if (rc > 0) {
+ created += rc;
+ diff -= rc;
+ } else if (rc < 0) {
+ break;
+ }
+ }
+ if (created > 0) {
+ /* some objects got created, we can return
+ * them, even if last creation failed */
+ oa->o_id = ofd_last_id(ofd, oa->o_seq);
+ rc = 0;
+ } else {
+ CERROR("unable to precreate: %d\n", rc);
+ oa->o_id = ofd_last_id(ofd, oa->o_seq);
+ }
+
+ oa->o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
+
+ if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
+ !(oa->o_flags & OBD_FL_DELORPHAN))
+ ofd_grant_commit(env, ofd_obd(ofd)->obd_self_export,
+ rc);
+ }
+
+ ofd_info2oti(info, oti);
+out:
+ mutex_unlock(&ofd->ofd_create_locks[oa->o_seq]);
+out_nolock:
+ if (rc == 0 && ea != NULL) {
+ struct lov_stripe_md *lsm = *ea;
+
+ lsm->lsm_object_id = oa->o_id;
+ }
+ return rc;
+}
+
+int ofd_getattr(const struct lu_env *env, struct obd_export *exp,
+ struct obd_info *oinfo)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct ofd_thread_info *info;
+ struct ofd_object *fo;
+ __u64 curr_version;
+ int rc = 0;
+
+ ENTRY;
+
+ info = ofd_info_init(env, exp);
+
+ fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
+ rc = ofd_auth_capa(exp, &info->fti_fid, oinfo->oi_oa->o_seq,
+ oinfo_capa(oinfo), CAPA_OPC_META_READ);
+ if (rc)
+ GOTO(out, rc);
+
+ fo = ofd_object_find(env, ofd, &info->fti_fid);
+ if (IS_ERR(fo))
+ GOTO(out, rc = PTR_ERR(fo));
+ LASSERT(fo != NULL);
+ rc = ofd_attr_get(env, fo, &info->fti_attr);
+ oinfo->oi_oa->o_valid = OBD_MD_FLID;
+ if (rc == 0)
+ obdo_from_la(oinfo->oi_oa, &info->fti_attr,
+ OFD_VALID_FLAGS | LA_UID | LA_GID);
+
+ /* Store object version in reply */
+ curr_version = dt_version_get(env, ofd_object_child(fo));
+ if ((__s64)curr_version != -EOPNOTSUPP) {
+ oinfo->oi_oa->o_valid |= OBD_MD_FLDATAVERSION;
+ oinfo->oi_oa->o_data_version = curr_version;
+ }
+ ofd_object_put(env, fo);
+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);
+ struct ofd_thread_info *info;
+ struct ofd_object *fo;
+ 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);
+ }
+
+ info = ofd_info_init(env, exp);
+ fid_ostid_unpack(&info->fti_fid, &oinfo->oi_oa->o_oi, 0);
+
+ rc = ofd_auth_capa(exp, &info->fti_fid, oinfo->oi_oa->o_seq,
+ oinfo_capa(oinfo), CAPA_OPC_OSS_TRUNC);
+ if (rc)
+ GOTO(out, rc);
+
+ fo = ofd_object_find(env, ofd, &info->fti_fid);
+ if (IS_ERR(fo)) {
+ CERROR("%s: error finding object "DFID": rc = %ld\n",
+ exp->exp_obd->obd_name, PFID(&info->fti_fid),
+ PTR_ERR(fo));
+ GOTO(out, rc = PTR_ERR(fo));
+ }
+
+ if (!ofd_object_exists(fo))
+ GOTO(put, rc = -ENOENT);
+
+ if (dt_version_get(env, ofd_object_child(fo)) >
+ ofd_obd(ofd)->obd_last_committed) {
+ rc = dt_object_sync(env, ofd_object_child(fo));
+ if (rc)
+ GOTO(put, rc);
+ }
+
+ oinfo->oi_oa->o_valid = OBD_MD_FLID;
+ rc = ofd_attr_get(env, fo, &info->fti_attr);
+ obdo_from_la(oinfo->oi_oa, &info->fti_attr, OFD_VALID_FLAGS);
+
+ ofd_counter_incr(exp, LPROC_OFD_STATS_SYNC, oinfo->oi_jobid, 1);
+ EXIT;
+put:
+ ofd_object_put(env, fo);
+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("%s: aborting recovery\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:
- CDEBUG(D_INFO, "%s: Unhandled notification %#x\n",
- obd->obd_name, ev);
+ CERROR("%s: not supported cmd = %d\n", obd->obd_name, cmd);
+ 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)
+{
+ ofd_fmd_expire(exp);
return 0;
}
+static int ofd_health_check(const struct lu_env *nul, struct obd_device *obd)
+{
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ struct ofd_thread_info *info;
+ struct lu_env env;
+#ifdef USE_HEALTH_CHECK_WRITE
+ struct thandle *th;
+#endif
+ int rc = 0;
+
+ /* obd_proc_read_health pass NULL env, we need real one */
+ rc = lu_env_init(&env, LCT_DT_THREAD);
+ if (rc)
+ RETURN(rc);
+
+ 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:
+ lu_env_fini(&env);
+ return !!rc;
+}
+
+/*
+ * Handle quota control requests to consult current usage/limit.
+ *
+ * \param obd - is the obd device associated with the ofd
+ * \param exp - is the client's export
+ * \param oqctl - is the obd_quotactl request to be processed
+ */
+static int ofd_quotactl(struct obd_device *obd, struct obd_export *exp,
+ struct obd_quotactl *oqctl)
+{
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ struct lu_env env;
+ int rc;
+ ENTRY;
+
+ /* report success for quota on/off for interoperability with current MDT
+ * stack */
+ if (oqctl->qc_cmd == Q_QUOTAON || oqctl->qc_cmd == Q_QUOTAOFF)
+ RETURN(0);
+
+ rc = lu_env_init(&env, LCT_DT_THREAD);
+ if (rc)
+ RETURN(rc);
+
+ rc = lquotactl_slv(&env, ofd->ofd_osd, oqctl);
+ lu_env_fini(&env);
+
+ RETURN(rc);
+}
+
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_create = ofd_create,
+ .o_statfs = ofd_statfs,
+ .o_setattr = ofd_setattr,
+ .o_preprw = ofd_preprw,
+ .o_commitrw = ofd_commitrw,
+ .o_destroy = ofd_destroy,
+ .o_init_export = ofd_init_export,
+ .o_destroy_export = ofd_destroy_export,
+ .o_postrecov = ofd_obd_postrecov,
+ .o_punch = ofd_punch,
+ .o_getattr = ofd_getattr,
+ .o_sync = ofd_sync,
+ .o_iocontrol = ofd_iocontrol,
+ .o_precleanup = ofd_precleanup,
+ .o_ping = ofd_ping,
+ .o_health_check = ofd_health_check,
+ .o_quotactl = ofd_quotactl,
};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff