Whamcloud - gitweb
LU-11304 misc: update all url links to whamcloud
[fs/lustre-release.git] / lustre / ofd / ofd_obd.c
index 307f678..aa59c14 100644 (file)
@@ -23,7 +23,7 @@
  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, 2015, Intel Corporation.
+ * Copyright (c) 2012, 2017, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
 
 #define DEBUG_SUBSYSTEM S_FILTER
 
-#include <lustre/lustre_idl.h>
 #include "ofd_internal.h"
 #include <obd_cksum.h>
-#include <lustre_ioctl.h>
+#include <uapi/linux/lustre/lustre_ioctl.h>
 #include <lustre_quota.h>
 #include <lustre_lfsck.h>
 #include <lustre_nodemap.h>
@@ -73,8 +72,6 @@ static int ofd_export_stats_init(struct ofd_device *ofd,
        int                      rc;
        ENTRY;
 
-       LASSERT(obd->obd_uses_nid_stats);
-
        if (obd_uuid_equals(&exp->exp_client_uuid, &obd->obd_uuid))
                /* Self-export gets no proc entry */
                RETURN(0);
@@ -85,14 +82,11 @@ static int ofd_export_stats_init(struct ofd_device *ofd,
                RETURN(rc == -EALREADY ? 0 : rc);
 
        stats = exp->exp_nid_stats;
-       stats->nid_stats = lprocfs_alloc_stats(NUM_OBD_STATS +
-                                               LPROC_OFD_STATS_LAST,
-                                               LPROCFS_STATS_FLAG_NOPERCPU);
+       stats->nid_stats = lprocfs_alloc_stats(LPROC_OFD_STATS_LAST,
+                                              LPROCFS_STATS_FLAG_NOPERCPU);
        if (stats->nid_stats == NULL)
                RETURN(-ENOMEM);
 
-       lprocfs_init_ops_stats(LPROC_OFD_STATS_LAST, stats->nid_stats);
-
        ofd_stats_counter_init(stats->nid_stats);
 
        rc = lprocfs_register_stats(stats->nid_proc, "stats", stats->nid_stats);
@@ -110,6 +104,93 @@ out:
 }
 
 /**
+ * Decide which checksums both client and OST support, possibly forcing
+ * the use of T10PI checksums if the hardware supports this.
+ *
+ * The clients that have no T10-PI RPC checksum support will use the same
+ * mechanism to select checksum type as before, and will not be affected by
+ * the following logic.
+ *
+ * For the clients that have T10-PI RPC checksum support:
+ *
+ * If the OST supports T10-PI feature and T10-PI checksum is enforced, clients
+ * will have no other choice for RPC checksum type other than using the T10PI
+ * checksum type. This is useful for enforcing end-to-end integrity in the
+ * whole system.
+ *
+ * If the OST doesn't support T10-PI feature and T10-PI checksum is enforced,
+ * together with other checksum with reasonably good speeds (e.g. crc32,
+ * crc32c, adler, etc.), all T10-PI checksum types understood by the client
+ * (t10ip512, t10ip4K, t10crc512, t10crc4K) will be added to the available
+ * checksum types, regardless of the speeds of T10-PI checksums. This is
+ * useful for testing T10-PI checksum of RPC.
+ *
+ * If the OST supports T10-PI feature and T10-PI checksum is NOT enforced,
+ * the corresponding T10-PI checksum type will be added to the checksum type
+ * list, regardless of the speed of the T10-PI checksum. This provides clients
+ * the flexibility to choose whether to enable end-to-end integrity or not.
+ *
+ * If the OST does NOT supports T10-PI feature and T10-PI checksum is NOT
+ * enforced, together with other checksums with reasonably good speeds,
+ * all the T10-PI checksum types with good speeds will be added into the
+ * checksum type list. Note that a T10-PI checksum type with a speed worse
+ * than half of Alder will NOT be added as a option. In this circumstance,
+ * T10-PI checksum types has the same behavior like other normal checksum
+ * types.
+ *
+ */
+static void
+ofd_mask_cksum_types(struct ofd_device *ofd, enum cksum_types *cksum_types)
+{
+       bool enforce = ofd->ofd_checksum_t10pi_enforce;
+       enum cksum_types ofd_t10_cksum_type;
+       enum cksum_types client_t10_types = *cksum_types & OBD_CKSUM_T10_ALL;
+       enum cksum_types server_t10_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. T10PI checksum types will be added later.
+        */
+       *cksum_types &= (ofd->ofd_cksum_types_supported & ~OBD_CKSUM_T10_ALL);
+       server_t10_types = ofd->ofd_cksum_types_supported & OBD_CKSUM_T10_ALL;
+       ofd_t10_cksum_type = ofd->ofd_lut.lut_dt_conf.ddp_t10_cksum_type;
+
+       /* Quick exit if no T10-PI support on client */
+       if (!client_t10_types)
+               return;
+
+       /*
+        * This OST has NO T10-PI feature. Add all supported T10-PI checksums
+        * as options if T10-PI checksum is enforced. If the T10-PI checksum is
+        * not enforced, only add them as options when speed is good.
+        */
+       if (ofd_t10_cksum_type == 0) {
+               /*
+                * Server allows all T10PI checksums, and server_t10_types
+                * include quick ones.
+                */
+               if (enforce)
+                       *cksum_types |= client_t10_types;
+               else
+                       *cksum_types |= client_t10_types & server_t10_types;
+               return;
+       }
+
+       /*
+        * This OST has T10-PI feature. Disable all other checksum types if
+        * T10-PI checksum is enforced. If the T10-PI checksum is not enforced,
+        * add the checksum type as an option.
+        */
+       if (client_t10_types & ofd_t10_cksum_type) {
+               if (enforce)
+                       *cksum_types = ofd_t10_cksum_type;
+               else
+                       *cksum_types |= ofd_t10_cksum_type;
+       }
+}
+
+/**
  * Match client and OST server connection feature flags.
  *
  * Compute the compatibility flags for a connection request based on
@@ -122,6 +203,10 @@ out:
  * connect flags from the obd_connect_data::ocd_connect_flags field of the
  * reply. \see tgt_connect().
  *
+ * Before 2.7.50 clients will send a struct obd_connect_data_v1 rather than a
+ * full struct obd_connect_data. So care must be taken when accessing fields
+ * that are not present in struct obd_connect_data_v1. See LU-16.
+ *
  * \param[in] env              execution environment
  * \param[in] exp              the obd_export associated with this
  *                             client/target pair
@@ -139,8 +224,8 @@ static int ofd_parse_connect_data(const struct lu_env *env,
                                  struct obd_connect_data *data,
                                  bool new_connection)
 {
-       struct ofd_device                *ofd = ofd_exp(exp);
-       struct filter_export_data        *fed = &exp->exp_filter_data;
+       struct ofd_device *ofd = ofd_exp(exp);
+       struct filter_export_data *fed = &exp->exp_filter_data;
 
        if (!data)
                RETURN(0);
@@ -156,7 +241,7 @@ static int ofd_parse_connect_data(const struct lu_env *env,
                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 "
-                     "https://jira.hpdd.intel.com/\n",
+                     "https://jira.whamcloud.com/\n",
                      obd_export_nid2str(exp), fed->fed_group,
                      data->ocd_group);
                RETURN(-EPROTO);
@@ -164,8 +249,9 @@ static int ofd_parse_connect_data(const struct lu_env *env,
        fed->fed_group = data->ocd_group;
 
        data->ocd_connect_flags &= OST_CONNECT_SUPPORTED;
-       data->ocd_connect_flags2 &= OST_CONNECT_SUPPORTED2;
-       data->ocd_version = LUSTRE_VERSION_CODE;
+
+       if (data->ocd_connect_flags & OBD_CONNECT_FLAGS2)
+               data->ocd_connect_flags2 &= OST_CONNECT_SUPPORTED2;
 
        /* Kindly make sure the SKIP_ORPHAN flag is from MDS. */
        if (data->ocd_connect_flags & OBD_CONNECT_MDS)
@@ -195,24 +281,25 @@ static int ofd_parse_connect_data(const struct lu_env *env,
        }
 
        if (OCD_HAS_FLAG(data, GRANT_PARAM)) {
+               struct dt_device_param *ddp = &ofd->ofd_lut.lut_dt_conf;
+
                /* client is reporting its page size, for future use */
-               exp->exp_filter_data.fed_pagebits = data->ocd_grant_blkbits;
-               data->ocd_grant_blkbits  = ofd->ofd_blockbits;
+               exp->exp_target_data.ted_pagebits = data->ocd_grant_blkbits;
+               data->ocd_grant_blkbits  = ofd->ofd_lut.lut_tgd.tgd_blockbits;
                /* ddp_inodespace may not be power-of-two value, eg. for ldiskfs
                 * it's LDISKFS_DIR_REC_LEN(20) = 28. */
-               data->ocd_grant_inobits =
-                                      fls(ofd->ofd_dt_conf.ddp_inodespace - 1);
+               data->ocd_grant_inobits = fls(ddp->ddp_inodespace - 1);
                /* ocd_grant_tax_kb is in 1K byte blocks */
-               data->ocd_grant_tax_kb = ofd->ofd_dt_conf.ddp_extent_tax >> 10;
-               data->ocd_grant_max_blks = ofd->ofd_dt_conf.ddp_max_extent_blks;
+               data->ocd_grant_tax_kb = ddp->ddp_extent_tax >> 10;
+               data->ocd_grant_max_blks = ddp->ddp_max_extent_blks;
        }
 
-       if (OCD_HAS_FLAG(data, GRANT)) {
-               /* Save connect_data we have so far because ofd_grant_connect()
-                * uses it to calculate grant. */
-               exp->exp_connect_data = *data;
-               ofd_grant_connect(env, exp, data, new_connection);
-       }
+       /* Save connect_data we have so far because tgt_grant_connect()
+        * uses it to calculate grant, and we want to save the client
+        * version before it is overwritten by LUSTRE_VERSION_CODE. */
+       exp->exp_connect_data = *data;
+       if (OCD_HAS_FLAG(data, GRANT))
+               tgt_grant_connect(env, exp, data, new_connection);
 
        if (data->ocd_connect_flags & OBD_CONNECT_INDEX) {
                struct lr_server_data *lsd = &ofd->ofd_lut.lut_lsd;
@@ -230,7 +317,7 @@ static int ofd_parse_connect_data(const struct lu_env *env,
                if (!(lsd->lsd_feature_compat & OBD_COMPAT_OST)) {
                        /* this will only happen on the first connect */
                        lsd->lsd_feature_compat |= OBD_COMPAT_OST;
-                       /* sync is not needed here as lut_client_add will
+                       /* sync is not needed here as tgt_client_new will
                         * set exp_need_sync flag */
                        tgt_server_data_update(env, &ofd->ofd_lut, 0);
                }
@@ -239,10 +326,7 @@ static int ofd_parse_connect_data(const struct lu_env *env,
        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();
+               ofd_mask_cksum_types(ofd, &data->ocd_cksum_types);
 
                if (unlikely(data->ocd_cksum_types == 0)) {
                        CERROR("%s: Connect with checksum support but no "
@@ -255,15 +339,17 @@ static int ofd_parse_connect_data(const struct lu_env *env,
                       "%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 */
+               /* This client does not support OBD_CONNECT_CKSUM.
+                * Report failure to negotiate checksum at connect */
                CDEBUG(D_RPCTRACE, "%s: cli %s does not support "
-                      "OBD_CONNECT_CKSUM, CRC32 will be used\n",
+                      "OBD_CONNECT_CKSUM\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;
+               data->ocd_maxbytes = ofd->ofd_lut.lut_dt_conf.ddp_maxbytes;
+
+       data->ocd_version = LUSTRE_VERSION_CODE;
 
        if (OCD_HAS_FLAG(data, PINGLESS)) {
                if (ptlrpc_pinger_suppress_pings()) {
@@ -422,11 +508,11 @@ int ofd_obd_disconnect(struct obd_export *exp)
        class_export_get(exp);
 
        if (!(exp->exp_flags & OBD_OPT_FORCE))
-               ofd_grant_sanity_check(ofd_obd(ofd), __FUNCTION__);
+               tgt_grant_sanity_check(ofd_obd(ofd), __func__);
 
        rc = server_disconnect_export(exp);
 
-       ofd_grant_discard(exp);
+       tgt_grant_discard(exp);
 
        /* Do not erase record for recoverable client. */
        if (exp->exp_obd->obd_replayable &&
@@ -495,10 +581,10 @@ static int ofd_destroy_export(struct obd_export *exp)
 {
        struct ofd_device *ofd = ofd_exp(exp);
 
-       if (exp->exp_filter_data.fed_pending)
+       if (exp->exp_target_data.ted_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);
+                      exp, exp->exp_target_data.ted_pending);
 
        target_destroy_export(exp);
 
@@ -515,14 +601,14 @@ static int ofd_destroy_export(struct obd_export *exp)
         * discard grants once we're sure no more
         * interaction with the client is possible
         */
-       ofd_grant_discard(exp);
+       tgt_grant_discard(exp);
        ofd_fmd_cleanup(exp);
 
        if (exp_connect_flags(exp) & OBD_CONNECT_GRANT)
-               ofd->ofd_tot_granted_clients--;
+               ofd->ofd_lut.lut_tgd.tgd_tot_granted_clients--;
 
        if (!(exp->exp_flags & OBD_OPT_FORCE))
-               ofd_grant_sanity_check(exp->exp_obd, __FUNCTION__);
+               tgt_grant_sanity_check(exp->exp_obd, __func__);
 
        LASSERT(list_empty(&exp->exp_filter_data.fed_mod_list));
        return 0;
@@ -547,7 +633,7 @@ int ofd_postrecov(const struct lu_env *env, struct ofd_device *ofd)
 
        CDEBUG(D_HA, "%s: recovery is over\n", ofd_name(ofd));
 
-       if (!ofd->ofd_skip_lfsck) {
+       if (!ofd->ofd_skip_lfsck && !ofd->ofd_osd->dd_rdonly) {
                struct lfsck_start_param lsp;
 
                lsp.lsp_start = NULL;
@@ -623,7 +709,7 @@ static int ofd_set_info_async(const struct lu_env *env, struct obd_export *exp,
        }
 
        if (KEY_IS(KEY_SPTLRPC_CONF)) {
-               rc = tgt_adapt_sptlrpc_conf(class_exp2tgt(exp), 0);
+               rc = tgt_adapt_sptlrpc_conf(class_exp2tgt(exp));
        } else {
                CERROR("%s: Unsupported key %s\n",
                       exp->exp_obd->obd_name, (char*)key);
@@ -686,105 +772,6 @@ static int ofd_get_info(const struct lu_env *env, struct obd_export *exp,
 }
 
 /**
- * Get file system statistics of OST server.
- *
- * Helper function for ofd_statfs(), also used by grant code.
- * Implements caching for statistics to avoid calling OSD device each time.
- *
- * \param[in]  env       execution environment
- * \param[in]  ofd       OFD device
- * \param[out] osfs      statistic data to return
- * \param[in]  max_age   maximum age for cached data
- * \param[in]  from_cache show that data was get from cache or not
- *
- * \retval             0 if successful
- * \retval             negative value on error
- */
-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 = 0;
-       ENTRY;
-
-       spin_lock(&ofd->ofd_osfs_lock);
-       if (cfs_time_before_64(ofd->ofd_osfs_age, max_age) || max_age == 0) {
-               u64 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))
-                       GOTO(out, 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 committed 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(u64, 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;
-       }
-       GOTO(out, rc);
-
-out:
-       return rc;
-}
-
-/**
  * Implementation of obd_ops::o_statfs.
  *
  * This function returns information about a storage file system.
@@ -806,15 +793,16 @@ out:
  * \retval             negative value on error
  */
 int ofd_statfs(const struct lu_env *env,  struct obd_export *exp,
-              struct obd_statfs *osfs, __u64 max_age, __u32 flags)
+              struct obd_statfs *osfs, time64_t max_age, __u32 flags)
 {
         struct obd_device      *obd = class_exp2obd(exp);
        struct ofd_device       *ofd = ofd_exp(exp);
+       struct tg_grants_data   *tgd = &ofd->ofd_lut.lut_tgd;
        int                      rc;
 
        ENTRY;
 
-       rc = ofd_statfs_internal(env, ofd, osfs, max_age, NULL);
+       rc = tgt_statfs_internal(env, &ofd->ofd_lut, osfs, max_age, NULL);
        if (unlikely(rc))
                GOTO(out, rc);
 
@@ -824,54 +812,64 @@ int ofd_statfs(const struct lu_env *env,  struct obd_export *exp,
 
        CDEBUG(D_SUPER | D_CACHE, "blocks cached %llu granted %llu"
               " pending %llu free %llu avail %llu\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);
+              tgd->tgd_tot_dirty, tgd->tgd_tot_granted,
+              tgd->tgd_tot_pending,
+              osfs->os_bfree << tgd->tgd_blockbits,
+              osfs->os_bavail << tgd->tgd_blockbits);
 
        osfs->os_bavail -= min_t(u64, osfs->os_bavail,
-                                ((ofd->ofd_tot_dirty + ofd->ofd_tot_pending +
-                                  osfs->os_bsize - 1) >> ofd->ofd_blockbits));
+                                ((tgd->tgd_tot_dirty + tgd->tgd_tot_pending +
+                                  osfs->os_bsize - 1) >> tgd->tgd_blockbits));
 
        /* The QoS code on the MDS does not care about space reserved for
         * precreate, so take it out. */
        if (exp_connect_flags(exp) & OBD_CONNECT_MDS) {
-               struct filter_export_data *fed;
+               struct tg_export_data *ted;
 
-               fed = &obd->obd_self_export->exp_filter_data;
-               osfs->os_bavail -= min_t(u64, osfs->os_bavail,
-                                        fed->fed_grant >> ofd->ofd_blockbits);
+               ted = &obd->obd_self_export->exp_target_data;
+               osfs->os_granted = min_t(u64, osfs->os_bavail,
+                                         ted->ted_grant >> tgd->tgd_blockbits);
+               osfs->os_bavail -= osfs->os_granted;
        }
 
-       ofd_grant_sanity_check(obd, __FUNCTION__);
+       tgt_grant_sanity_check(obd, __func__);
        CDEBUG(D_CACHE, "%llu blocks: %llu free, %llu avail; "
               "%llu objects: %llu 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_osd_index))
-               osfs->os_ffree = 0;
+                                ofd->ofd_lut.lut_lsd.lsd_osd_index)) {
+               /* Reduce free inode count to zero, but keep "used" intact */
+               osfs->os_files -= osfs->os_ffree;
+               osfs->os_ffree -= osfs->os_ffree;
+       }
 
        /* 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_param_supp(exp) &&
-           ofd->ofd_blockbits > COMPAT_BSIZE_SHIFT) {
+       if (obd->obd_self_export != exp && !exp_grant_param_supp(exp) &&
+           tgd->tgd_blockbits > COMPAT_BSIZE_SHIFT) {
                /* 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_blocks <<= tgd->tgd_blockbits - COMPAT_BSIZE_SHIFT;
+               osfs->os_bfree  <<= tgd->tgd_blockbits - COMPAT_BSIZE_SHIFT;
+               osfs->os_bavail <<= tgd->tgd_blockbits - COMPAT_BSIZE_SHIFT;
+               osfs->os_granted <<= tgd->tgd_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_osd_index))
-               osfs->os_bfree = osfs->os_bavail = 2;
+                                ofd->ofd_lut.lut_lsd.lsd_osd_index)) {
+               /* Reduce free blocks count near zero, but keep "used" intact */
+               osfs->os_bavail -= osfs->os_bavail - 2;
+               osfs->os_blocks -= osfs->os_bfree - 2;
+               osfs->os_bfree -= osfs->os_bfree - 2;
+       }
 
        EXIT;
 out:
@@ -900,7 +898,6 @@ static int ofd_echo_setattr(const struct lu_env *env, struct obd_export *exp,
        struct ldlm_resource    *res;
        struct ofd_object       *fo;
        struct lu_fid           *fid = &oa->o_oi.oi_fid;
-       struct filter_fid       *ff = NULL;
        int                      rc = 0;
 
        ENTRY;
@@ -937,13 +934,8 @@ static int ofd_echo_setattr(const struct lu_env *env, struct obd_export *exp,
        la_from_obdo(&info->fti_attr, oa, 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);
+       rc = ofd_attr_set(env, fo, &info->fti_attr, oa);
        if (rc)
                GOTO(out_unlock, rc);
 
@@ -973,7 +965,7 @@ out:
  *
  * Supplemental function to destroy object by FID, it is used by request
  * handler and by ofd_echo_destroy() below to find object by FID, lock it
- * and call ofd_object_destroy() finally.
+ * and call ofd_destroy() finally.
  *
  * \param[in] env      execution environment
  * \param[in] ofd      OFD device
@@ -1013,7 +1005,7 @@ int ofd_destroy_by_fid(const struct lu_env *env, struct ofd_device *ofd,
 
        LASSERT(fo != NULL);
 
-       rc = ofd_object_destroy(env, fo, orphan);
+       rc = ofd_destroy(env, fo, orphan);
        EXIT;
 
        ofd_object_put(env, fo);
@@ -1048,6 +1040,10 @@ static int ofd_echo_destroy(const struct lu_env *env, struct obd_export *exp,
 
        ofd_info_init(env, exp);
 
+       rc = ofd_validate_seq(exp, ostid_seq(&oa->o_oi));
+       if (rc != 0)
+               RETURN(rc);
+
        CDEBUG(D_HA, "%s: Destroy object "DFID"\n", ofd_name(ofd), PFID(fid));
 
        rc = ofd_destroy_by_fid(env, ofd, fid, 0);
@@ -1087,17 +1083,17 @@ static int ofd_echo_create(const struct lu_env *env, struct obd_export *exp,
                           struct obdo *oa)
 {
        struct ofd_device       *ofd = ofd_exp(exp);
-       struct ofd_thread_info  *info;
        u64                      seq = ostid_seq(&oa->o_oi);
        struct ofd_seq          *oseq;
-       int                      rc = 0, diff = 1;
        long                     granted;
        u64                      next_id;
+       s64 diff = 1;
+       int rc = 0;
        int                      count;
 
        ENTRY;
 
-       info = ofd_info_init(env, exp);
+       ofd_info_init(env, exp);
 
        LASSERT(seq == FID_SEQ_ECHO);
        LASSERT(oa->o_valid & OBD_MD_FLGROUP);
@@ -1111,6 +1107,10 @@ static int ofd_echo_create(const struct lu_env *env, struct obd_export *exp,
        if (unlikely(ofd->ofd_lastid_rebuilding))
                GOTO(out_sem, rc = -ENOSPC);
 
+       rc = ofd_validate_seq(exp, seq);
+       if (rc != 0)
+               RETURN(rc);
+
        oseq = ofd_seq_load(env, ofd, seq);
        if (IS_ERR(oseq)) {
                CERROR("%s: Can't find FID Sequence %#llx: rc = %ld\n",
@@ -1119,30 +1119,35 @@ static int ofd_echo_create(const struct lu_env *env, struct obd_export *exp,
        }
 
        mutex_lock(&oseq->os_create_lock);
-       granted = ofd_grant_create(env, ofd_obd(ofd)->obd_self_export, &diff);
+       granted = tgt_grant_create(env, ofd_obd(ofd)->obd_self_export, &diff);
        if (granted < 0) {
                rc = granted;
                granted = 0;
                CDEBUG(D_HA, "%s: failed to acquire grant space for "
-                      "precreate (%d): rc = %d\n", ofd_name(ofd), diff, rc);
+                      "precreate (%lld): rc = %d\n", ofd_name(ofd), diff, rc);
                diff = 0;
                GOTO(out, rc);
        }
 
        next_id = ofd_seq_last_oid(oseq) + 1;
-       count = ofd_precreate_batch(ofd, diff);
+       count = ofd_precreate_batch(ofd, (int)diff);
 
        rc = ofd_precreate_objects(env, ofd, next_id, oseq, count, 0);
        if (rc < 0) {
                CERROR("%s: unable to precreate: rc = %d\n",
                       ofd_name(ofd), rc);
        } else {
-               ostid_set_id(&oa->o_oi, ofd_seq_last_oid(oseq));
+               rc = ostid_set_id(&oa->o_oi, ofd_seq_last_oid(oseq));
+               if (rc) {
+                       CERROR("%s: Bad %llu to set " DOSTID " : rc %d\n",
+                              ofd_name(ofd),
+                              (unsigned long long)ofd_seq_last_oid(oseq),
+                              POSTID(&oa->o_oi), rc);
+               }
                oa->o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
-               rc = 0;
        }
 
-       ofd_grant_commit(ofd_obd(ofd)->obd_self_export, granted, rc);
+       tgt_grant_commit(ofd_obd(ofd)->obd_self_export, granted, rc);
 out:
        mutex_unlock(&oseq->os_create_lock);
        ofd_seq_put(env, oseq);
@@ -1191,7 +1196,7 @@ static int ofd_echo_getattr(const struct lu_env *env, struct obd_export *exp,
                __u64 curr_version;
 
                obdo_from_la(oa, &info->fti_attr,
-                            OFD_VALID_FLAGS | LA_UID | LA_GID);
+                            OFD_VALID_FLAGS | LA_UID | LA_GID | LA_PROJID);
 
                /* Store object version in reply */
                curr_version = dt_version_get(env, ofd_object_child(fo));
@@ -1239,10 +1244,12 @@ static int ofd_ioc_get_obj_version(const struct lu_env *env,
                   data->ioc_inllen3 == sizeof(__u64) &&
                   data->ioc_inlbuf4 != NULL &&
                   data->ioc_inllen4 == sizeof(__u64)) {
-               struct ost_id ostid;
+               struct ost_id ostid = { };
 
                ostid_set_seq(&ostid, *(__u64 *)data->ioc_inlbuf4);
-               ostid_set_id(&ostid, *(__u64 *)data->ioc_inlbuf3);
+               rc = ostid_set_id(&ostid, *(__u64 *)data->ioc_inlbuf3);
+               if (rc)
+                       GOTO(out, rc);
                rc = ostid_to_fid(&fid, &ostid,
                                  ofd->ofd_lut.lut_lsd.lsd_osd_index);
                if (rc != 0)