Whamcloud - gitweb
Branch HEAD
[fs/lustre-release.git] / lustre / llite / dir.c
index 55fa6a8..2549009 100644 (file)
@@ -221,7 +221,7 @@ static struct page *ll_dir_page_locate(struct inode *dir, __u64 hash,
          * radix_tree_gang_lookup() can be used to find a page with starting
          * hash _smaller_ than one we are looking for.
          */
-        unsigned long offset = hash_x_index((__u32)hash);
+        unsigned long offset = hash_x_index((unsigned long)hash);
         struct page *page;
         int found;
 
@@ -281,7 +281,8 @@ struct page *ll_get_dir_page(struct inode *dir, __u64 hash, int exact,
                            ll_inode2fid(dir), LDLM_IBITS, &policy, mode, &lockh);
         if (!rc) {
                 struct ldlm_enqueue_info einfo = { LDLM_IBITS, mode,
-                       ll_md_blocking_ast, ldlm_completion_ast, NULL, dir };
+                       ll_md_blocking_ast, ldlm_completion_ast,
+                       NULL, NULL, dir };
                 struct lookup_intent it = { .it_op = IT_READDIR };
                 struct ptlrpc_request *request;
                 struct md_op_data *op_data;
@@ -306,7 +307,8 @@ struct page *ll_get_dir_page(struct inode *dir, __u64 hash, int exact,
         } else {
                 /* for cross-ref object, l_ast_data of the lock may not be set,
                  * we reset it here */
-                md_set_lock_data(ll_i2sbi(dir)->ll_md_exp, &lockh.cookie, dir);
+                md_set_lock_data(ll_i2sbi(dir)->ll_md_exp, &lockh.cookie,
+                                 dir, NULL);
         }
         ldlm_lock_dump_handle(D_OTHER, &lockh);
 
@@ -344,7 +346,7 @@ struct page *ll_get_dir_page(struct inode *dir, __u64 hash, int exact,
                 }
         }
 
-        page = read_cache_page(mapping, hash_x_index((__u32)hash),
+        page = read_cache_page(mapping, hash_x_index((unsigned long)hash),
                                (filler_t*)mapping->a_ops->readpage, NULL);
         if (IS_ERR(page))
                 GOTO(out_unlock, page);
@@ -393,6 +395,7 @@ int ll_readdir(struct file *filp, void *cookie, filldir_t filldir)
         int rc;
         int done;
         int shift;
+        __u16 type;
         ENTRY;
 
         CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p) pos %lu/%llu\n",
@@ -418,7 +421,7 @@ int ll_readdir(struct file *filp, void *cookie, filldir_t filldir)
 
                 if (!IS_ERR(page)) {
                         /*
-                         * If page is empty (end of directoryis reached),
+                         * If page is empty (end of directory is reached),
                          * use this value.
                          */
                         __u64 hash = DIR_END_OFF;
@@ -456,9 +459,9 @@ int ll_readdir(struct file *filp, void *cookie, filldir_t filldir)
                                 name = ent->lde_name;
                                 fid_le_to_cpu(&fid, &fid);
                                 ino  = ll_fid_build_ino(sbi, &fid);
-
+                                type = ll_dirent_type_get(ent);
                                 done = filldir(cookie, name, namelen,
-                                               (loff_t)hash, ino, DT_UNKNOWN);
+                                               (loff_t)hash, ino, type);
                         }
                         next = le64_to_cpu(dp->ldp_hash_end);
                         ll_put_page(page);
@@ -490,7 +493,7 @@ int ll_readdir(struct file *filp, void *cookie, filldir_t filldir)
                 }
         }
 
-        filp->f_pos = (loff_t)(__s32)pos;
+        filp->f_pos = (loff_t)pos;
         filp->f_version = inode->i_version;
         touch_atime(filp->f_vfsmnt, filp->f_dentry);
 
@@ -499,16 +502,6 @@ int ll_readdir(struct file *filp, void *cookie, filldir_t filldir)
         RETURN(rc);
 }
 
-#define QCTL_COPY(out, in)              \
-do {                                    \
-        Q_COPY(out, in, qc_cmd);        \
-        Q_COPY(out, in, qc_type);       \
-        Q_COPY(out, in, qc_id);         \
-        Q_COPY(out, in, qc_stat);       \
-        Q_COPY(out, in, qc_dqinfo);     \
-        Q_COPY(out, in, qc_dqblk);      \
-} while (0)
-
 int ll_send_mgc_param(struct obd_export *mgc, char *string)
 {
         struct mgs_send_param *msp;
@@ -555,17 +548,34 @@ int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
         struct lustre_sb_info *lsi = s2lsi(inode->i_sb);
         struct obd_device *mgc = lsi->lsi_mgc;
         char *fsname = NULL, *param = NULL;
+        int lum_size;
 
         /*
          * This is coming from userspace, so should be in
          * local endian.  But the MDS would like it in little
          * endian, so we swab it before we send it.
          */
-        if (lump->lmm_magic != LOV_USER_MAGIC)
+        switch (lump->lmm_magic) {
+        case LOV_USER_MAGIC_V1: {
+                if (lump->lmm_magic != cpu_to_le32(LOV_USER_MAGIC_V1))
+                        lustre_swab_lov_user_md_v1(lump);
+                lum_size = sizeof(struct lov_user_md_v1);
+                break;
+                }
+        case LOV_USER_MAGIC_V3: {
+                if (lump->lmm_magic != cpu_to_le32(LOV_USER_MAGIC_V3))
+                        lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lump);
+                lum_size = sizeof(struct lov_user_md_v3);
+                break;
+                }
+        default: {
+                CDEBUG(D_IOCTL, "bad userland LOV MAGIC:"
+                                " %#08x != %#08x nor %#08x\n",
+                                lump->lmm_magic, LOV_USER_MAGIC_V1,
+                                LOV_USER_MAGIC_V3);
                 RETURN(-EINVAL);
-
-        if (lump->lmm_magic != cpu_to_le32(LOV_USER_MAGIC))
-                lustre_swab_lov_user_md(lump);
+                }
+        }
 
         op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
                                      LUSTRE_OPC_ANY, NULL);
@@ -573,7 +583,7 @@ int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
                 RETURN(PTR_ERR(op_data));
 
         /* swabbing is done in lov_setstripe() on server side */
-        rc = md_setattr(sbi->ll_md_exp, op_data, lump, sizeof(*lump),
+        rc = md_setattr(sbi->ll_md_exp, op_data, lump, lum_size,
                         NULL, 0, &req, NULL);
         ll_finish_md_op_data(op_data);
         ptlrpc_req_finished(req);
@@ -582,6 +592,9 @@ int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
                         CERROR("mdc_setattr fails: rc = %d\n", rc);
         }
 
+        /* In the following we use the fact that LOV_USER_MAGIC_V1 and
+         LOV_USER_MAGIC_V3 have the same initial fields so we do not
+         need the make the distiction between the 2 versions */
         if (set_default && mgc->u.cli.cl_mgc_mgsexp) {
                 OBD_ALLOC(param, MGS_PARAM_MAXLEN);
 
@@ -595,14 +608,14 @@ int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
                         goto end;
 
                 /* Set root stripecount */
-                sprintf(param, "%s-MDT0000.lov.stripecount=%u", fsname,
+                sprintf(param, "%s-MDT0000.lov.stripecount=%hd", fsname,
                         lump->lmm_stripe_count);
                 rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
                 if (rc)
                         goto end;
 
                 /* Set root stripeoffset */
-                sprintf(param, "%s-MDT0000.lov.stripeoffset=%u", fsname,
+                sprintf(param, "%s-MDT0000.lov.stripeoffset=%hd", fsname,
                         lump->lmm_stripe_offset);
                 rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
                 if (rc)
@@ -661,8 +674,19 @@ int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmmp,
          * little endian.  We convert it to host endian before
          * passing it to userspace.
          */
-        if (lmm->lmm_magic == __swab32(LOV_MAGIC)) {
-                lustre_swab_lov_user_md((struct lov_user_md *)lmm);
+        /* We don't swab objects for directories */
+        switch (le32_to_cpu(lmm->lmm_magic)) {
+        case LOV_MAGIC_V1:
+                if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC))
+                        lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lmm);
+                break;
+        case LOV_MAGIC_V3:
+                if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC))
+                        lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm);
+                break;
+        default:
+                CERROR("unknown magic: %lX\n", (unsigned long)lmm->lmm_magic);
+                rc = -EPROTO;
         }
 out:
         *lmmp = lmm;
@@ -737,21 +761,31 @@ static int ll_dir_ioctl(struct inode *inode, struct file *file,
                 return rc;
         }
         case LL_IOC_LOV_SETSTRIPE: {
-                struct lov_user_md lum, *lump = (struct lov_user_md *)arg;
+                struct lov_user_md_v3 lumv3;
+                struct lov_user_md_v1 *lumv1 = (struct lov_user_md_v1 *)&lumv3;
+                struct lov_user_md_v1 *lumv1p = (struct lov_user_md_v1 *)arg;
+                struct lov_user_md_v3 *lumv3p = (struct lov_user_md_v3 *)arg;
+
                 int rc = 0;
                 int set_default = 0;
 
-                LASSERT(sizeof(lum) == sizeof(*lump));
-                LASSERT(sizeof(lum.lmm_objects[0]) ==
-                        sizeof(lump->lmm_objects[0]));
-                rc = copy_from_user(&lum, lump, sizeof(lum));
-                if (rc)
+                LASSERT(sizeof(lumv3) == sizeof(*lumv3p));
+                LASSERT(sizeof(lumv3.lmm_objects[0]) ==
+                        sizeof(lumv3p->lmm_objects[0]));
+                /* first try with v1 which is smaller than v3 */
+                if (copy_from_user(lumv1, lumv1p, sizeof(*lumv1)))
                         RETURN(-EFAULT);
 
+                if (lumv1->lmm_magic == LOV_USER_MAGIC_V3) {
+                        if (copy_from_user(&lumv3, lumv3p, sizeof(lumv3)))
+                                RETURN(-EFAULT);
+                }
+
                 if (inode->i_sb->s_root == file->f_dentry)
                         set_default = 1;
 
-                rc = ll_dir_setstripe(inode, &lum, set_default);
+                /* in v1 and v3 cases lumv1 points to data */
+                rc = ll_dir_setstripe(inode, lumv1, set_default);
 
                 RETURN(rc);
         }
@@ -804,8 +838,7 @@ static int ll_dir_ioctl(struct inode *inode, struct file *file,
                         lmdp = (struct lov_user_mds_data *)arg;
                         lump = &lmdp->lmd_lmm;
                 }
-                rc = copy_to_user(lump, lmm, lmmsize);
-                if (rc)
+                if (copy_to_user(lump, lmm, lmmsize))
                         GOTO(out_lmm, rc = -EFAULT);
         skip_lmm:
                 if (cmd == IOC_MDC_GETFILEINFO || cmd == LL_IOC_MDC_GETINFO) {
@@ -827,8 +860,7 @@ static int ll_dir_ioctl(struct inode *inode, struct file *file,
                         st.st_ino     = inode->i_ino;
 
                         lmdp = (struct lov_user_mds_data *)arg;
-                        rc = copy_to_user(&lmdp->lmd_st, &st, sizeof(st));
-                        if (rc)
+                        if (copy_to_user(&lmdp->lmd_st, &st, sizeof(st)))
                                 GOTO(out_lmm, rc = -EFAULT);
                 }
 
@@ -859,10 +891,32 @@ static int ll_dir_ioctl(struct inode *inode, struct file *file,
                         RETURN(rc);
 
                 OBD_ALLOC(lmm, lmmsize);
-                rc = copy_from_user(lmm, lum, lmmsize);
-                if (rc)
+                if (copy_from_user(lmm, lum, lmmsize))
                         GOTO(free_lmm, rc = -EFAULT);
 
+                switch (lmm->lmm_magic) {
+                case LOV_USER_MAGIC_V1:
+                        if (LOV_USER_MAGIC_V1 == cpu_to_le32(LOV_USER_MAGIC_V1))
+                                break;
+                        /* swab objects first so that stripes num will be sane */
+                        lustre_swab_lov_user_md_objects(
+                                ((struct lov_user_md_v1 *)lmm)->lmm_objects,
+                                ((struct lov_user_md_v1 *)lmm)->lmm_stripe_count);
+                        lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lmm);
+                        break;
+                case LOV_USER_MAGIC_V3:
+                        if (LOV_USER_MAGIC_V3 == cpu_to_le32(LOV_USER_MAGIC_V3))
+                                break;
+                        /* swab objects first so that stripes num will be sane */
+                        lustre_swab_lov_user_md_objects(
+                                ((struct lov_user_md_v3 *)lmm)->lmm_objects,
+                                ((struct lov_user_md_v3 *)lmm)->lmm_stripe_count);
+                        lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm);
+                        break;
+                default:
+                        GOTO(free_lmm, rc = -EINVAL);
+                }
+
                 rc = obd_unpackmd(sbi->ll_dt_exp, &lsm, lmm, lmmsize);
                 if (rc < 0)
                         GOTO(free_lmm, rc = -ENOMEM);
@@ -878,8 +932,7 @@ static int ll_dir_ioctl(struct inode *inode, struct file *file,
                 if (rc)
                         GOTO(free_lsm, rc);
 
-                rc = copy_to_user(&lumd->lmd_st, &st, sizeof(st));
-                if (rc)
+                if (copy_to_user(&lumd->lmd_st, &st, sizeof(st)))
                         GOTO(free_lsm, rc = -EFAULT);
 
                 EXIT;
@@ -938,7 +991,8 @@ static int ll_dir_ioctl(struct inode *inode, struct file *file,
                 if (!rc) {
                         str = req_capsule_server_get(&req->rq_pill,
                                                      &RMF_STRING);
-                        rc = copy_to_user(data->ioc_pbuf1, str, data->ioc_plen1);
+                        if (copy_to_user(data->ioc_pbuf1, str, data->ioc_plen1))
+                                rc = -EFAULT;
                 }
                 ptlrpc_req_finished(req);
         out_catinfo:
@@ -949,7 +1003,8 @@ static int ll_dir_ioctl(struct inode *inode, struct file *file,
                 struct obd_quotactl *oqctl;
                 int rc, error = 0;
 
-                if (!cfs_capable(CFS_CAP_SYS_ADMIN))
+                if (!cfs_capable(CFS_CAP_SYS_ADMIN) ||
+                    sbi->ll_flags & LL_SBI_RMT_CLIENT)
                         RETURN(-EPERM);
 
                 OBD_ALLOC_PTR(oqctl);
@@ -973,7 +1028,8 @@ static int ll_dir_ioctl(struct inode *inode, struct file *file,
                 struct if_quotacheck *check;
                 int rc;
 
-                if (!cfs_capable(CFS_CAP_SYS_ADMIN))
+                if (!cfs_capable(CFS_CAP_SYS_ADMIN) ||
+                    sbi->ll_flags & LL_SBI_RMT_CLIENT)
                         RETURN(-EPERM);
 
                 OBD_ALLOC_PTR(check);
@@ -1001,47 +1057,39 @@ static int ll_dir_ioctl(struct inode *inode, struct file *file,
                 OBD_FREE_PTR(check);
                 RETURN(rc);
         }
-#ifdef HAVE_QUOTA_SUPPORT
         case OBD_IOC_QUOTACTL: {
                 struct if_quotactl *qctl;
-                struct obd_quotactl *oqctl;
-
-                int cmd, type, id, rc = 0;
+                int cmd, type, id, valid, rc = 0;
 
                 OBD_ALLOC_PTR(qctl);
                 if (!qctl)
                         RETURN(-ENOMEM);
 
-                OBD_ALLOC_PTR(oqctl);
-                if (!oqctl) {
-                        OBD_FREE_PTR(qctl);
-                        RETURN(-ENOMEM);
-                }
                 if (copy_from_user(qctl, (void *)arg, sizeof(*qctl)))
                         GOTO(out_quotactl, rc = -EFAULT);
 
                 cmd = qctl->qc_cmd;
                 type = qctl->qc_type;
                 id = qctl->qc_id;
+                valid = qctl->qc_valid;
+
                 switch (cmd) {
+                case LUSTRE_Q_INVALIDATE:
+                case LUSTRE_Q_FINVALIDATE:
                 case Q_QUOTAON:
                 case Q_QUOTAOFF:
                 case Q_SETQUOTA:
                 case Q_SETINFO:
-                        if (!cfs_capable(CFS_CAP_SYS_ADMIN))
+                        if (!cfs_capable(CFS_CAP_SYS_ADMIN) ||
+                            sbi->ll_flags & LL_SBI_RMT_CLIENT)
                                 GOTO(out_quotactl, rc = -EPERM);
                         break;
                 case Q_GETQUOTA:
                         if (((type == USRQUOTA && current->euid != id) ||
                              (type == GRPQUOTA && !in_egroup_p(id))) &&
-                            !cfs_capable(CFS_CAP_SYS_ADMIN))
+                            (!cfs_capable(CFS_CAP_SYS_ADMIN) ||
+                             sbi->ll_flags & LL_SBI_RMT_CLIENT))
                                 GOTO(out_quotactl, rc = -EPERM);
-
-                        /* XXX: dqb_valid is borrowed as a flag to mark that
-                         *      only mds quota is wanted */
-                        if (qctl->qc_dqblk.dqb_valid)
-                                qctl->obd_uuid = sbi->ll_md_exp->exp_obd->
-                                                        u.cli.cl_target_uuid;
                         break;
                 case Q_GETINFO:
                         break;
@@ -1050,69 +1098,76 @@ static int ll_dir_ioctl(struct inode *inode, struct file *file,
                         GOTO(out_quotactl, rc = -ENOTTY);
                 }
 
-                QCTL_COPY(oqctl, qctl);
-
-                if (qctl->obd_uuid.uuid[0]) {
-                        struct obd_device *obd;
-                        struct obd_uuid *uuid = &qctl->obd_uuid;
-
-                        obd = class_find_client_notype(uuid,
-                                         &sbi->ll_dt_exp->exp_obd->obd_uuid);
-                        if (!obd)
-                                GOTO(out_quotactl, rc = -ENOENT);
+                if (valid != QC_GENERAL) {
+                        if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
+                                GOTO(out_quotactl, rc = -EOPNOTSUPP);
 
                         if (cmd == Q_GETINFO)
-                                oqctl->qc_cmd = Q_GETOINFO;
+                                qctl->qc_cmd = Q_GETOINFO;
                         else if (cmd == Q_GETQUOTA)
-                                oqctl->qc_cmd = Q_GETOQUOTA;
+                                qctl->qc_cmd = Q_GETOQUOTA;
                         else
                                 GOTO(out_quotactl, rc = -EINVAL);
 
-                        if (sbi->ll_md_exp->exp_obd == obd) {
-                                rc = obd_quotactl(sbi->ll_md_exp, oqctl);
-                        } else {
-                                int i;
-                                struct obd_export *exp;
-                                struct lov_obd *lov = &sbi->ll_dt_exp->
-                                                            exp_obd->u.lov;
-
-                                for (i = 0; i < lov->desc.ld_tgt_count; i++) {
-                                        if (!lov->lov_tgts[i] ||
-                                            !lov->lov_tgts[i]->ltd_active)
-                                                continue;
-                                        exp = lov->lov_tgts[i]->ltd_exp;
-                                        if (exp->exp_obd == obd) {
-                                                rc = obd_quotactl(exp, oqctl);
-                                                break;
-                                        }
-                                }
+                        switch (valid) {
+                        case QC_MDTIDX:
+                                rc = obd_iocontrol(OBD_IOC_QUOTACTL,
+                                                   sbi->ll_md_exp,
+                                                   sizeof(*qctl), qctl, NULL);
+                                break;
+                        case QC_OSTIDX:
+                                rc = obd_iocontrol(OBD_IOC_QUOTACTL,
+                                                   sbi->ll_dt_exp,
+                                                   sizeof(*qctl), qctl, NULL);
+                                break;
+                        case QC_UUID:
+                                rc = obd_iocontrol(OBD_IOC_QUOTACTL,
+                                                   sbi->ll_md_exp,
+                                                   sizeof(*qctl), qctl, NULL);
+                                if (rc == -EAGAIN)
+                                        rc = obd_iocontrol(OBD_IOC_QUOTACTL,
+                                                           sbi->ll_dt_exp,
+                                                           sizeof(*qctl), qctl,
+                                                           NULL);
+                                break;
+                        default:
+                                rc = -EINVAL;
+                                break;
                         }
 
-                        oqctl->qc_cmd = cmd;
-                        QCTL_COPY(qctl, oqctl);
-
-                        if (copy_to_user((void *)arg, qctl, sizeof(*qctl)))
-                                rc = -EFAULT;
-
-                        GOTO(out_quotactl, rc);
-                }
-
-                rc = obd_quotactl(sbi->ll_md_exp, oqctl);
-                if (rc && rc != -EBUSY && cmd == Q_QUOTAON) {
-                        oqctl->qc_cmd = Q_QUOTAOFF;
-                        obd_quotactl(sbi->ll_md_exp, oqctl);
+                        if (rc)
+                                GOTO(out_quotactl, rc);
+                        else
+                                qctl->qc_cmd = cmd;
+                } else {
+                        struct obd_quotactl *oqctl;
+
+                        OBD_ALLOC_PTR(oqctl);
+                        if (!oqctl)
+                                GOTO(out_quotactl, rc = -ENOMEM);
+
+                        QCTL_COPY(oqctl, qctl);
+                        rc = obd_quotactl(sbi->ll_md_exp, oqctl);
+                        if (rc) {
+                                if (rc != -EALREADY && cmd == Q_QUOTAON) {
+                                        oqctl->qc_cmd = Q_QUOTAOFF;
+                                        obd_quotactl(sbi->ll_md_exp, oqctl);
+                                }
+                                OBD_FREE_PTR(oqctl);
+                                GOTO(out_quotactl, rc);
+                        } else {
+                                QCTL_COPY(qctl, oqctl);
+                                OBD_FREE_PTR(oqctl);
+                        }
                 }
 
-                QCTL_COPY(qctl, oqctl);
-
                 if (copy_to_user((void *)arg, qctl, sizeof(*qctl)))
                         rc = -EFAULT;
+
         out_quotactl:
                 OBD_FREE_PTR(qctl);
-                OBD_FREE_PTR(oqctl);
                 RETURN(rc);
         }
-#endif /* HAVE_QUOTA_SUPPORT */
         case OBD_IOC_GETNAME: {
                 struct obd_device *obd = class_exp2obd(sbi->ll_dt_exp);
                 if (!obd)
@@ -1140,6 +1195,51 @@ static int ll_dir_ioctl(struct inode *inode, struct file *file,
                 RETURN(0);
         }
 #endif
+        case LL_IOC_GETOBDCOUNT: {
+                int count;
+
+                if (copy_from_user(&count, (int *)arg, sizeof(int)))
+                        RETURN(-EFAULT);
+
+                if (!count) {
+                        /* get ost count */
+                        struct lov_obd *lov = &sbi->ll_dt_exp->exp_obd->u.lov;
+                        count = lov->desc.ld_tgt_count;
+                } else {
+                        /* get mdt count */
+                        struct lmv_obd *lmv = &sbi->ll_md_exp->exp_obd->u.lmv;
+                        count = lmv->desc.ld_tgt_count;
+                }
+
+                if (copy_to_user((int *)arg, &count, sizeof(int)))
+                        RETURN(-EFAULT);
+
+                RETURN(0);
+        }
+        case LL_IOC_PATH2FID:
+                if (copy_to_user((void *)arg, &ll_i2info(inode)->lli_fid,
+                                 sizeof(struct lu_fid)))
+                        RETURN(-EFAULT);
+                RETURN(0);
+        case OBD_IOC_CHANGELOG_CLEAR: {
+                struct ioc_changelog_clear *icc;
+                int rc;
+
+                OBD_ALLOC_PTR(icc);
+                if (icc == NULL)
+                        RETURN(-ENOMEM);
+                if (copy_from_user(icc, (void *)arg, sizeof(*icc)))
+                        GOTO(icc_free, rc = -EFAULT);
+
+                rc = obd_iocontrol(cmd, sbi->ll_md_exp, sizeof(*icc), icc,NULL);
+
+icc_free:
+                OBD_FREE_PTR(icc);
+                RETURN(rc);
+        }
+        case OBD_IOC_FID2PATH:
+                RETURN(ll_fid2path(ll_i2mdexp(inode), (void *)arg));
+
         default:
                 RETURN(obd_iocontrol(cmd, sbi->ll_dt_exp,0,NULL,(void *)arg));
         }