Whamcloud - gitweb
LU-6142 ofd: Fix style issues for ofd_obd.c 67/33567/2
authorArshad Hussain <arshad.super@gmail.com>
Thu, 1 Nov 2018 15:19:01 +0000 (20:49 +0530)
committerOleg Drokin <green@whamcloud.com>
Tue, 13 Nov 2018 06:14:58 +0000 (06:14 +0000)
This patch fixes issues reported by checkpatch for file
lustre/ofd/ofd_obd.c

Change-Id: Iebe9ea44c1b3ca85e4eff1538af04daa3813e143
Test-Parameters: trivial
Signed-off-by: Arshad Hussain <arshad.super@gmail.com>
Reviewed-on: https://review.whamcloud.com/33567
Tested-by: Jenkins
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: John L. Hammond <jhammond@whamcloud.com>
lustre/ofd/ofd_obd.c

index 0d6e2f4..f67ad47 100644 (file)
@@ -70,6 +70,7 @@ static int ofd_export_stats_init(struct ofd_device *ofd,
        struct obd_device       *obd = ofd_obd(ofd);
        struct nid_stat         *stats;
        int                      rc;
+
        ENTRY;
 
        if (obd_uuid_equals(&exp->exp_client_uuid, &obd->obd_uuid))
@@ -84,7 +85,7 @@ static int ofd_export_stats_init(struct ofd_device *ofd,
        stats = exp->exp_nid_stats;
        stats->nid_stats = lprocfs_alloc_stats(LPROC_OFD_STATS_LAST,
                                               LPROCFS_STATS_FLAG_NOPERCPU);
-       if (stats->nid_stats == NULL)
+       if (!stats->nid_stats)
                RETURN(-ENOMEM);
 
        ofd_stats_counter_init(stats->nid_stats);
@@ -230,18 +231,14 @@ static int ofd_parse_connect_data(const struct lu_env *env,
        if (!data)
                RETURN(0);
 
-       CDEBUG(D_RPCTRACE, "%s: cli %s/%p ocd_connect_flags: %#llx"
-              " ocd_version: %x ocd_grant: %d ocd_index: %u"
-              " ocd_group %u\n",
+       CDEBUG(D_RPCTRACE,
+              "%s: cli %s/%p ocd_connect_flags: %#llx ocd_version: %x ocd_grant: %d ocd_index: %u ocd_group %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, data->ocd_group);
 
        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 "
-                     "https://jira.whamcloud.com/\n",
+               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.whamcloud.com/\n",
                      obd_export_nid2str(exp), fed->fed_group,
                      data->ocd_group);
                RETURN(-EPROTO);
@@ -267,11 +264,7 @@ static int ofd_parse_connect_data(const struct lu_env *env,
                if (data->ocd_brw_size > ofd->ofd_brw_size)
                        data->ocd_brw_size = ofd->ofd_brw_size;
                if (data->ocd_brw_size == 0) {
-                       CERROR("%s: cli %s/%p ocd_connect_flags: %#llx"
-                              " ocd_version: %x ocd_grant: %d ocd_index: %u "
-                              "ocd_brw_size is unexpectedly zero, "
-                              "network data corruption?"
-                              "Refusing connection of this client\n",
+                       CERROR("%s: cli %s/%p ocd_connect_flags: %#llx 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,
@@ -286,17 +279,21 @@ static int ofd_parse_connect_data(const struct lu_env *env,
                /* client is reporting its page size, for future use */
                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. */
+               /*
+                * 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(ddp->ddp_inodespace - 1);
                /* ocd_grant_tax_kb is in 1K byte blocks */
                data->ocd_grant_tax_kb = ddp->ddp_extent_tax >> 10;
                data->ocd_grant_max_blks = ddp->ddp_max_extent_blks;
        }
 
-       /* Save connect_data we have so far because tgt_grant_connect()
+       /*
+        * 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. */
+        * 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);
@@ -306,10 +303,8 @@ static int ofd_parse_connect_data(const struct lu_env *env,
                int                    index = lsd->lsd_osd_index;
 
                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",
+                       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);
@@ -317,8 +312,10 @@ 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 tgt_client_new will
-                        * set exp_need_sync flag */
+                       /*
+                        * sync is not needed here as tgt_client_new will
+                        * set exp_need_sync flag
+                        */
                        tgt_server_data_update(env, &ofd->ofd_lut, 0);
                }
        }
@@ -329,20 +326,22 @@ static int ofd_parse_connect_data(const struct lu_env *env,
                ofd_mask_cksum_types(ofd, &data->ocd_cksum_types);
 
                if (unlikely(data->ocd_cksum_types == 0)) {
-                       CERROR("%s: Connect with checksum support but no "
-                              "ocd_cksum_types is set\n",
+                       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),
+               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.
-                * Report failure to negotiate checksum at connect */
-               CDEBUG(D_RPCTRACE, "%s: cli %s does not support "
-                      "OBD_CONNECT_CKSUM\n",
+               /*
+                * 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\n",
                       exp->exp_obd->obd_name, obd_export_nid2str(exp));
        }
 
@@ -385,12 +384,12 @@ static int ofd_obd_reconnect(const struct lu_env *env, struct obd_export *exp,
                             struct obd_connect_data *data,
                             void *client_nid)
 {
-       struct ofd_device       *ofd;
-       int                      rc;
+       struct ofd_device *ofd;
+       int rc;
 
        ENTRY;
 
-       if (exp == NULL || obd == NULL || cluuid == NULL)
+       if (!exp || !obd || !cluuid)
                RETURN(-EINVAL);
 
        rc = nodemap_add_member(*(lnet_nid_t *)client_nid, exp);
@@ -429,13 +428,14 @@ 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;
+       struct obd_export *exp;
+       struct ofd_device *ofd;
+       struct lustre_handle conn = { 0 };
+       int rc;
+
        ENTRY;
 
-       if (_exp == NULL || obd == NULL || cluuid == NULL)
+       if (!_exp || !obd || !cluuid)
                RETURN(-EINVAL);
 
        ofd = ofd_dev(obd->obd_lu_dev);
@@ -447,13 +447,14 @@ static int ofd_obd_connect(const struct lu_env *env, struct obd_export **_exp,
        exp = class_conn2export(&conn);
        LASSERT(exp != NULL);
 
-       if (localdata != NULL) {
+       if (localdata) {
                rc = nodemap_add_member(*(lnet_nid_t *)localdata, exp);
                if (rc != 0 && rc != -EEXIST)
                        GOTO(out, rc);
        } else {
-               CDEBUG(D_HA, "%s: cannot find nodemap for client %s: "
-                      "nid is null\n", obd->obd_name, cluuid->uuid);
+               CDEBUG(D_HA,
+                      "%s: cannot find nodemap for client %s: nid is null\n",
+                      obd->obd_name, cluuid->uuid);
        }
 
        rc = ofd_parse_connect_data(env, exp, data, true);
@@ -498,9 +499,9 @@ out:
  */
 int ofd_obd_disconnect(struct obd_export *exp)
 {
-       struct ofd_device       *ofd = ofd_exp(exp);
-       struct lu_env            env;
-       int                      rc;
+       struct ofd_device *ofd = ofd_exp(exp);
+       struct lu_env env;
+       int rc;
 
        ENTRY;
 
@@ -582,8 +583,8 @@ static int ofd_destroy_export(struct obd_export *exp)
        struct ofd_device *ofd = ofd_exp(exp);
 
        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,
+               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_target_data.ted_pending);
 
        target_destroy_export(exp);
@@ -660,9 +661,9 @@ int ofd_postrecov(const struct lu_env *env, struct ofd_device *ofd)
  */
 static int ofd_obd_postrecov(struct obd_device *obd)
 {
-       struct lu_env            env;
-       struct lu_device        *ldev = obd->obd_lu_dev;
-       int                      rc;
+       struct lu_env env;
+       struct lu_device *ldev = obd->obd_lu_dev;
+       int rc;
 
        ENTRY;
 
@@ -703,7 +704,7 @@ static int ofd_set_info_async(const struct lu_env *env, struct obd_export *exp,
 
        ENTRY;
 
-       if (exp->exp_obd == NULL) {
+       if (!exp->exp_obd) {
                CDEBUG(D_IOCTL, "invalid export %p\n", exp);
                RETURN(-EINVAL);
        }
@@ -712,7 +713,7 @@ static int ofd_set_info_async(const struct lu_env *env, struct obd_export *exp,
                rc = tgt_adapt_sptlrpc_conf(class_exp2tgt(exp));
        } else {
                CERROR("%s: Unsupported key %s\n",
-                      exp->exp_obd->obd_name, (char*)key);
+                      exp->exp_obd->obd_name, (char *)key);
                rc = -EOPNOTSUPP;
        }
        RETURN(rc);
@@ -739,15 +740,15 @@ static int ofd_set_info_async(const struct lu_env *env, struct obd_export *exp,
 static int ofd_get_info(const struct lu_env *env, struct obd_export *exp,
                        __u32 keylen, void *key, __u32 *vallen, void *val)
 {
-       struct ofd_thread_info          *info;
-       struct ofd_device               *ofd;
-       struct ll_fiemap_info_key       *fm_key = key;
-       struct fiemap                   *fiemap = val;
-       int                              rc = 0;
+       struct ofd_thread_info *info;
+       struct ofd_device *ofd;
+       struct ll_fiemap_info_key *fm_key = key;
+       struct fiemap *fiemap = val;
+       int rc = 0;
 
        ENTRY;
 
-       if (exp->exp_obd == NULL) {
+       if (!exp->exp_obd) {
                CDEBUG(D_IOCTL, "invalid client export %p\n", exp);
                RETURN(-EINVAL);
        }
@@ -764,7 +765,8 @@ static int ofd_get_info(const struct lu_env *env, struct obd_export *exp,
 
                rc = ofd_fiemap_get(env, ofd, &info->fti_fid, fiemap);
        } else {
-               CERROR("%s: not supported key %s\n", ofd_name(ofd), (char*)key);
+               CERROR("%s: not supported key %s\n",
+                      ofd_name(ofd), (char *)key);
                rc = -EOPNOTSUPP;
        }
 
@@ -795,10 +797,10 @@ static int ofd_get_info(const struct lu_env *env, struct obd_export *exp,
 int ofd_statfs(const struct lu_env *env,  struct obd_export *exp,
               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;
+       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;
 
@@ -806,12 +808,14 @@ int ofd_statfs(const struct lu_env *env,  struct obd_export *exp,
        if (unlikely(rc))
                GOTO(out, rc);
 
-       /* at least try to account for cached pages.  its still racy and
+       /*
+        * 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 */
+        * caches with brw recently
+        */
 
-       CDEBUG(D_SUPER | D_CACHE, "blocks cached %llu granted %llu"
-              " pending %llu free %llu avail %llu\n",
+       CDEBUG(D_SUPER | D_CACHE,
+              "blocks cached %llu granted %llu pending %llu free %llu avail %llu\n",
               tgd->tgd_tot_dirty, tgd->tgd_tot_granted,
               tgd->tgd_tot_pending,
               osfs->os_bfree << tgd->tgd_blockbits,
@@ -821,8 +825,10 @@ int ofd_statfs(const struct lu_env *env,  struct obd_export *exp,
                                 ((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. */
+       /*
+        * 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 tg_export_data *ted;
 
@@ -851,11 +857,13 @@ int ofd_statfs(const struct lu_env *env,  struct obd_export *exp,
 
        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
+               /*
+                * 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. */
+                * with all client's page size.
+                */
                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;
@@ -892,13 +900,13 @@ out:
 static int ofd_echo_setattr(const struct lu_env *env, struct obd_export *exp,
                            struct obdo *oa)
 {
-       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 lu_fid           *fid = &oa->o_oi.oi_fid;
-       int                      rc = 0;
+       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 lu_fid *fid = &oa->o_oi.oi_fid;
+       int rc = 0;
 
        ENTRY;
 
@@ -906,8 +914,10 @@ static int ofd_echo_setattr(const struct lu_env *env, struct obd_export *exp,
 
        ost_fid_build_resid(fid, &info->fti_resid);
 
-       /* This would be very bad - accidentally truncating a file when
-        * changing the time or similar - bug 12203. */
+       /*
+        * This would be very bad - accidentally truncating a file when
+        * changing the time or similar - bug 12203.
+        */
        if (oa->o_valid & OBD_MD_FLSIZE) {
                static char mdsinum[48];
 
@@ -945,12 +955,15 @@ out_unlock:
        ofd_object_put(env, fo);
 out:
        if (rc == 0) {
-               /* we do not call this before to avoid lu_object_find() in
+               /*
+                * we do not call this before to avoid lu_object_find() in
                 *  ->lvbo_update() holding another reference on the object.
                 * otherwise concurrent destroy can make the object unavailable
                 * for 2nd lu_object_find() waiting for the first reference
-                * to go... deadlock! */
-               res = ldlm_resource_get(ns, NULL, &info->fti_resid, LDLM_EXTENT, 0);
+                * to go... deadlock!
+                */
+               res = ldlm_resource_get(ns, NULL, &info->fti_resid,
+                                       LDLM_EXTENT, 0);
                if (!IS_ERR(res)) {
                        ldlm_res_lvbo_update(env, res, NULL, 0);
                        ldlm_resource_putref(res);
@@ -991,8 +1004,10 @@ int ofd_destroy_by_fid(const struct lu_env *env, struct ofd_device *ofd,
        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. */
+       /*
+        * Tell the clients that the object is gone now and that they should
+        * throw away any cached pages.
+        */
        ost_fid_build_resid(fid, &info->fti_resid);
        rc = ldlm_cli_enqueue_local(env, ofd->ofd_namespace, &info->fti_resid,
                                    LDLM_EXTENT, &policy, LCK_PW, &flags,
@@ -1032,9 +1047,9 @@ int ofd_destroy_by_fid(const struct lu_env *env, struct ofd_device *ofd,
 static int ofd_echo_destroy(const struct lu_env *env, struct obd_export *exp,
                            struct obdo *oa)
 {
-       struct ofd_device       *ofd = ofd_exp(exp);
-       struct lu_fid           *fid = &oa->o_oi.oi_fid;
-       int                      rc = 0;
+       struct ofd_device *ofd = ofd_exp(exp);
+       struct lu_fid *fid = &oa->o_oi.oi_fid;
+       int rc = 0;
 
        ENTRY;
 
@@ -1082,14 +1097,14 @@ out:
 static int ofd_echo_create(const struct lu_env *env, struct obd_export *exp,
                           struct obdo *oa)
 {
-       struct ofd_device       *ofd = ofd_exp(exp);
-       u64                      seq = ostid_seq(&oa->o_oi);
-       struct ofd_seq          *oseq;
-       long                     granted;
-       u64                      next_id;
+       struct ofd_device *ofd = ofd_exp(exp);
+       u64 seq = ostid_seq(&oa->o_oi);
+       struct ofd_seq *oseq;
+       long granted;
+       u64 next_id;
        s64 diff = 1;
        int rc = 0;
-       int                      count;
+       int count;
 
        ENTRY;
 
@@ -1101,9 +1116,11 @@ static int ofd_echo_create(const struct lu_env *env, struct obd_export *exp,
        CDEBUG(D_INFO, "ofd_create("DOSTID")\n", POSTID(&oa->o_oi));
 
        down_read(&ofd->ofd_lastid_rwsem);
-       /* Currently, for safe, we do not distinguish which LAST_ID is broken,
+       /*
+        * Currently, for safe, we do not distinguish which LAST_ID is broken,
         * we may do that in the future.
-        * Return -ENOSPC until the LAST_ID rebuilt. */
+        * Return -ENOSPC until the LAST_ID rebuilt.
+        */
        if (unlikely(ofd->ofd_lastid_rebuilding))
                GOTO(out_sem, rc = -ENOSPC);
 
@@ -1123,8 +1140,9 @@ static int ofd_echo_create(const struct lu_env *env, struct obd_export *exp,
        if (granted < 0) {
                rc = granted;
                granted = 0;
-               CDEBUG(D_HA, "%s: failed to acquire grant space for "
-                      "precreate (%lld): rc = %d\n", ofd_name(ofd), diff, rc);
+               CDEBUG(D_HA,
+                      "%s: failed to acquire grant space for precreate (%lld): rc = %d\n",
+                      ofd_name(ofd), diff, rc);
                diff = 0;
                GOTO(out, rc);
        }
@@ -1175,11 +1193,11 @@ out_sem:
 static int ofd_echo_getattr(const struct lu_env *env, struct obd_export *exp,
                            struct obdo *oa)
 {
-       struct ofd_device       *ofd = ofd_exp(exp);
-       struct ofd_thread_info  *info;
-       struct lu_fid           *fid = &oa->o_oi.oi_fid;
-       struct ofd_object       *fo;
-       int                      rc = 0;
+       struct ofd_device *ofd = ofd_exp(exp);
+       struct ofd_thread_info *info;
+       struct lu_fid *fid = &oa->o_oi.oi_fid;
+       struct ofd_object *fo;
+       int rc = 0;
 
        ENTRY;
 
@@ -1228,21 +1246,21 @@ static int ofd_ioc_get_obj_version(const struct lu_env *env,
                                   struct ofd_device *ofd, void *karg)
 {
        struct obd_ioctl_data *data = karg;
-       struct lu_fid          fid;
-       struct ofd_object     *fo;
-       dt_obj_version_t       version;
-       int                    rc = 0;
+       struct lu_fid fid;
+       struct ofd_object *fo;
+       dt_obj_version_t version;
+       int rc = 0;
 
        ENTRY;
 
-       if (data->ioc_inlbuf2 == NULL || data->ioc_inllen2 != sizeof(version))
+       if (!data->ioc_inlbuf2 || data->ioc_inllen2 != sizeof(version))
                GOTO(out, rc = -EINVAL);
 
-       if (data->ioc_inlbuf1 != NULL && data->ioc_inllen1 == sizeof(fid)) {
+       if (data->ioc_inlbuf1 && data->ioc_inllen1 == sizeof(fid)) {
                fid = *(struct lu_fid *)data->ioc_inlbuf1;
-       } else if (data->ioc_inlbuf3 != NULL &&
+       } else if (data->ioc_inlbuf3 &&
                   data->ioc_inllen3 == sizeof(__u64) &&
-                  data->ioc_inlbuf4 != NULL &&
+                  data->ioc_inlbuf4 &&
                   data->ioc_inllen4 == sizeof(__u64)) {
                struct ost_id ostid = { };
 
@@ -1302,10 +1320,10 @@ out:
 static int ofd_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
                         void *karg, void __user *uarg)
 {
-       struct lu_env            env;
-       struct ofd_device       *ofd = ofd_exp(exp);
-       struct obd_device       *obd = ofd_obd(ofd);
-       int                      rc;
+       struct lu_env env;
+       struct ofd_device *ofd = ofd_exp(exp);
+       struct obd_device *obd = ofd_obd(ofd);
+       int rc;
 
        ENTRY;
 
@@ -1333,7 +1351,7 @@ static int ofd_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
                struct obd_ioctl_data *data = karg;
                struct lfsck_start_param lsp;
 
-               if (unlikely(data == NULL)) {
+               if (unlikely(!data)) {
                        rc = -EINVAL;
                        break;
                }
@@ -1349,7 +1367,7 @@ static int ofd_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
 
                stop.ls_status = LS_STOPPED;
                /* Old lfsck utils may pass NULL @stop. */
-               if (data->ioc_inlbuf1 == NULL)
+               if (!data->ioc_inlbuf1)
                        stop.ls_flags = 0;
                else
                        stop.ls_flags =
@@ -1428,13 +1446,13 @@ static int ofd_ping(const struct lu_env *env, struct obd_export *exp)
  */
 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;
+       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;
+       struct thandle *th;
 #endif
-       int                      rc = 0;
+       int rc = 0;
 
        /* obd_proc_read_health pass NULL env, we need real one */
        rc = lu_env_init(&env, LCT_DT_THREAD);
@@ -1451,7 +1469,7 @@ static int ofd_health_check(const struct lu_env *nul, struct obd_device *obd)
 
 #ifdef USE_HEALTH_CHECK_WRITE
        OBD_ALLOC(info->fti_buf.lb_buf, PAGE_SIZE);
-       if (info->fti_buf.lb_buf == NULL)
+       if (!info->fti_buf.lb_buf)
                GOTO(out, rc = -ENOMEM);
 
        info->fti_buf.lb_len = PAGE_SIZE;
@@ -1475,7 +1493,8 @@ static int ofd_health_check(const struct lu_env *nul, struct obd_device *obd)
 
        OBD_FREE(info->fti_buf.lb_buf, PAGE_SIZE);
 
-       CDEBUG(D_INFO, "write 1 page synchronously for checking io rc %d\n",rc);
+       CDEBUG(D_INFO, "write 1 page synchronously for checking io rc %d\n",
+              rc);
 #endif
 out:
        lu_env_fini(&env);