/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * * linux/mdt/mdt_reint.c * Lustre Metadata Target (mdt) reintegration routines * * Copyright (C) 2002-2006 Cluster File Systems, Inc. * Author: Peter Braam * Author: Andreas Dilger * Author: Phil Schwan * Author: Huang Hua * * This file is part of the Lustre file system, http://www.lustre.org * Lustre is a trademark of Cluster File Systems, Inc. * * You may have signed or agreed to another license before downloading * this software. If so, you are bound by the terms and conditions * of that agreement, and the following does not apply to you. See the * LICENSE file included with this distribution for more information. * * If you did not agree to a different license, then this copy of Lustre * is open source software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * In either case, Lustre is distributed in the hope that it will be * useful, but WITHOUT ANY WARRANTY; without even the implied warranty * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * license text for more details. */ #ifndef EXPORT_SYMTAB # define EXPORT_SYMTAB #endif #define DEBUG_SUBSYSTEM S_MDS #include "mdt_internal.h" static int mdt_md_create(struct mdt_thread_info *info) { struct mdt_device *mdt = info->mti_mdt; struct mdt_object *parent; struct mdt_object *child; struct mdt_lock_handle *lh; struct mdt_body *repbody; struct md_attr *ma = &info->mti_attr; struct mdt_reint_record *rr = &info->mti_rr; int rc; ENTRY; repbody = req_capsule_server_get(&info->mti_pill, &RMF_MDT_BODY); lh = &info->mti_lh[MDT_LH_PARENT]; lh->mlh_mode = LCK_EX; parent = mdt_object_find_lock(info, rr->rr_fid1, lh, MDS_INODELOCK_UPDATE); if (IS_ERR(parent)) RETURN(PTR_ERR(parent)); child = mdt_object_find(info->mti_ctxt, mdt, rr->rr_fid2); if (!IS_ERR(child)) { struct md_object *next = mdt_object_child(parent); ma->ma_need = MA_INODE; mdt_fail_write(info->mti_ctxt, info->mti_mdt->mdt_bottom, OBD_FAIL_MDS_REINT_CREATE_WRITE); rc = mdo_create(info->mti_ctxt, next, rr->rr_name, mdt_object_child(child), &info->mti_spec, ma); if (rc == 0) { /* return fid & attr to client. */ if (ma->ma_valid & MA_INODE) mdt_pack_attr2body(repbody, &ma->ma_attr, mdt_object_fid(child)); } mdt_object_put(info->mti_ctxt, child); } else rc = PTR_ERR(child); mdt_object_unlock_put(info, parent, lh, rc); RETURN(rc); } /* partial request to create object only */ static int mdt_md_mkobj(struct mdt_thread_info *info) { struct mdt_device *mdt = info->mti_mdt; struct mdt_object *o; struct mdt_body *repbody; struct md_attr *ma = &info->mti_attr; int rc; ENTRY; repbody = req_capsule_server_get(&info->mti_pill, &RMF_MDT_BODY); o = mdt_object_find(info->mti_ctxt, mdt, info->mti_rr.rr_fid2); if (!IS_ERR(o)) { struct md_object *next = mdt_object_child(o); ma->ma_need = MA_INODE; rc = mo_object_create(info->mti_ctxt, next, &info->mti_spec, ma); if (rc == 0) { /* return fid & attr to client. */ if (ma->ma_valid & MA_INODE) mdt_pack_attr2body(repbody, &ma->ma_attr, mdt_object_fid(o)); } mdt_object_put(info->mti_ctxt, o); } else rc = PTR_ERR(o); RETURN(rc); } /* In the raw-setattr case, we lock the child inode. * In the write-back case or if being called from open, * the client holds a lock already. * We use the ATTR_FROM_OPEN (translated into MRF_SETATTR_LOCKED by * mdt_setattr_unpack()) flag to tell these cases apart. */ int mdt_attr_set(struct mdt_thread_info *info, struct mdt_object *mo, int flags) { struct md_attr *ma = &info->mti_attr; struct md_object *next; struct mdt_lock_handle *lh; int som_update = 0; int rc; ENTRY; if (info->mti_epoch) som_update = (info->mti_epoch->flags & MF_SOM_CHANGE); /* Try to avoid object_lock if another epoch has been started * already. */ if (som_update && (info->mti_epoch->ioepoch != mo->mot_ioepoch)) RETURN(0); lh = &info->mti_lh[MDT_LH_PARENT]; lh->mlh_mode = LCK_EX; if (!(flags & MRF_SETATTR_LOCKED)) { __u64 lockpart = MDS_INODELOCK_UPDATE; if (ma->ma_attr.la_valid & (LA_MODE|LA_UID|LA_GID)) lockpart |= MDS_INODELOCK_LOOKUP; rc = mdt_object_lock(info, mo, lh, lockpart); if (rc != 0) GOTO(out, rc); } /* Setattrs are syncronized through dlm lock taken above. If another * epoch started, its attributes may be already flushed on disk, * skip setattr. */ next = mdt_object_child(mo); if (som_update && (info->mti_epoch->ioepoch != mo->mot_ioepoch)) GOTO(out, rc = 0); next = mdt_object_child(mo); if (lu_object_assert_not_exists(&mo->mot_obj.mo_lu)) GOTO(out, rc = -ENOENT); /* all attrs are packed into mti_attr in unpack_setattr */ mdt_fail_write(info->mti_ctxt, info->mti_mdt->mdt_bottom, OBD_FAIL_MDS_REINT_SETATTR_WRITE); /* all attrs are packed into mti_attr in unpack_setattr */ rc = mo_attr_set(info->mti_ctxt, next, ma); if (rc != 0) GOTO(out, rc); /* Re-enable SIZEONMDS. */ if (som_update) { CDEBUG(D_INODE, "Closing epoch "LPU64" on "DFID". Count %d\n", mo->mot_ioepoch, PFID(mdt_object_fid(mo)), mo->mot_epochcount); mdt_sizeonmds_enable(info, mo); } EXIT; out: mdt_object_unlock(info, mo, lh, rc); return(rc); } static int mdt_reint_setattr(struct mdt_thread_info *info) { struct md_attr *ma = &info->mti_attr; struct mdt_reint_record *rr = &info->mti_rr; struct ptlrpc_request *req = mdt_info_req(info); struct mdt_export_data *med = &req->rq_export->exp_mdt_data; struct mdt_file_data *mfd; struct mdt_object *mo; struct md_object *next; struct mdt_body *repbody; int rc; ENTRY; DEBUG_REQ(D_INODE, req, "setattr "DFID" %x", PFID(rr->rr_fid1), (unsigned int)ma->ma_attr.la_valid); repbody = req_capsule_server_get(&info->mti_pill, &RMF_MDT_BODY); mo = mdt_object_find(info->mti_ctxt, info->mti_mdt, rr->rr_fid1); if (IS_ERR(mo)) RETURN(rc = PTR_ERR(mo)); if (info->mti_epoch && (info->mti_epoch->flags & MF_EPOCH_OPEN)) { /* Truncate case. */ rc = mdt_write_get(info->mti_mdt, mo); if (rc) GOTO(out, rc); mfd = mdt_mfd_new(); if (mfd == NULL) GOTO(out, rc = -ENOMEM); /* FIXME: in recovery, need to pass old epoch here */ mdt_epoch_open(info, mo, 0); repbody->ioepoch = mo->mot_ioepoch; mdt_object_get(info->mti_ctxt, mo); mfd->mfd_mode = FMODE_EPOCHLCK; mfd->mfd_object = mo; mfd->mfd_xid = req->rq_xid; spin_lock(&med->med_open_lock); list_add(&mfd->mfd_list, &med->med_open_head); spin_unlock(&med->med_open_lock); repbody->handle.cookie = mfd->mfd_handle.h_cookie; } rc = mdt_attr_set(info, mo, rr->rr_flags); if (rc) GOTO(out, rc); if (info->mti_epoch && (info->mti_epoch->flags & MF_SOM_CHANGE)) { LASSERT(info->mti_epoch); /* Size-on-MDS Update. Find and free mfd. */ spin_lock(&med->med_open_lock); mfd = mdt_handle2mfd(&(info->mti_epoch->handle)); if (mfd == NULL) { spin_unlock(&med->med_open_lock); CDEBUG(D_INODE, "no handle for file close: " "fid = "DFID": cookie = "LPX64"\n", PFID(info->mti_rr.rr_fid1), info->mti_epoch->handle.cookie); GOTO(out, rc = -ESTALE); } LASSERT(mfd->mfd_mode == FMODE_SOM); LASSERT(ma->ma_attr.la_valid & LA_SIZE); LASSERT(!(info->mti_epoch->flags & MF_EPOCH_CLOSE)); class_handle_unhash(&mfd->mfd_handle); list_del_init(&mfd->mfd_list); spin_unlock(&med->med_open_lock); mdt_mfd_close(info, mfd); } ma->ma_need = MA_INODE; next = mdt_object_child(mo); rc = mo_attr_get(info->mti_ctxt, next, ma); if (rc != 0) GOTO(out, rc); mdt_pack_attr2body(repbody, &ma->ma_attr, mdt_object_fid(mo)); EXIT; out: mdt_object_put(info->mti_ctxt, mo); return rc; } static int mdt_reint_create(struct mdt_thread_info *info) { int rc; ENTRY; if (MDT_FAIL_CHECK(OBD_FAIL_MDS_REINT_CREATE)) RETURN(-ESTALE); switch (info->mti_attr.ma_attr.la_mode & S_IFMT) { case S_IFREG: case S_IFDIR:{ if (strlen(info->mti_rr.rr_name) == 0) { rc = mdt_md_mkobj(info); break; } } case S_IFLNK: case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:{ /* special file should stay on the same node as parent */ LASSERT(strlen(info->mti_rr.rr_name) > 0); rc = mdt_md_create(info); break; } default: rc = -EOPNOTSUPP; } RETURN(rc); } static int mdt_reint_unlink(struct mdt_thread_info *info) { struct mdt_reint_record *rr = &info->mti_rr; struct ptlrpc_request *req = mdt_info_req(info); struct md_attr *ma = &info->mti_attr; struct lu_fid *child_fid = &info->mti_tmp_fid1; struct mdt_object *mp; struct mdt_object *mc; struct mdt_lock_handle *lhp; struct mdt_lock_handle *lhc; int rc; ENTRY; DEBUG_REQ(D_INODE, req, "unlink "DFID"/%s\n", PFID(rr->rr_fid1), rr->rr_name); if (MDT_FAIL_CHECK(OBD_FAIL_MDS_REINT_UNLINK)) GOTO(out, rc = -ENOENT); /* step 1: lock the parent */ lhp = &info->mti_lh[MDT_LH_PARENT]; lhp->mlh_mode = LCK_EX; mp = mdt_object_find_lock(info, rr->rr_fid1, lhp, MDS_INODELOCK_UPDATE); if (IS_ERR(mp)) GOTO(out, rc = PTR_ERR(mp)); ma->ma_lmm = req_capsule_server_get(&info->mti_pill, &RMF_MDT_MD); ma->ma_lmm_size = req_capsule_get_size(&info->mti_pill, &RMF_MDT_MD, RCL_SERVER); ma->ma_cookie = req_capsule_server_get(&info->mti_pill, &RMF_LOGCOOKIES); ma->ma_cookie_size = req_capsule_get_size(&info->mti_pill, &RMF_LOGCOOKIES, RCL_SERVER); if (!ma->ma_lmm || !ma->ma_cookie) GOTO(out_unlock_parent, rc = -EINVAL); if (strlen(rr->rr_name) == 0) { /* remote partial operation */ rc = mo_ref_del(info->mti_ctxt, mdt_object_child(mp), ma); GOTO(out_unlock_parent, rc); } /*step 2: find & lock the child */ lhc = &info->mti_lh[MDT_LH_CHILD]; lhc->mlh_mode = LCK_EX; rc = mdo_lookup(info->mti_ctxt, mdt_object_child(mp), rr->rr_name, child_fid); if (rc != 0) GOTO(out_unlock_parent, rc); /* we will lock the child regardless it is local or remote. No harm. */ mc = mdt_object_find_lock(info, child_fid, lhc, MDS_INODELOCK_FULL); if (IS_ERR(mc)) GOTO(out_unlock_parent, rc = PTR_ERR(mc)); mdt_fail_write(info->mti_ctxt, info->mti_mdt->mdt_bottom, OBD_FAIL_MDS_REINT_UNLINK_WRITE); /*Now we can only make sure we need MA_INODE, in mdd layer, *will check whether need MA_LOV and MA_COOKIE*/ ma->ma_need = MA_INODE; rc = mdo_unlink(info->mti_ctxt, mdt_object_child(mp), mdt_object_child(mc), rr->rr_name, ma); if (rc) GOTO(out_unlock_child, rc); mdt_handle_last_unlink(info, mc, ma); GOTO(out_unlock_child, rc); out_unlock_child: mdt_object_unlock_put(info, mc, lhc, rc); out_unlock_parent: mdt_object_unlock_put(info, mp, lhp, rc); out: mdt_shrink_reply(info, REPLY_REC_OFF + 1); return rc; } static int mdt_reint_link(struct mdt_thread_info *info) { struct mdt_reint_record *rr = &info->mti_rr; struct ptlrpc_request *req = mdt_info_req(info); struct md_attr *ma = &info->mti_attr; struct mdt_object *ms; struct mdt_object *mp; struct mdt_lock_handle *lhs; struct mdt_lock_handle *lhp; int rc; ENTRY; DEBUG_REQ(D_INODE, req, "link original "DFID" to "DFID" %s", PFID(rr->rr_fid1), PFID(rr->rr_fid2), rr->rr_name); if (MDT_FAIL_CHECK(OBD_FAIL_MDS_REINT_LINK)) RETURN(-ENOENT); /* step 1: lock the source */ lhs = &info->mti_lh[MDT_LH_PARENT]; lhs->mlh_mode = LCK_EX; ms = mdt_object_find_lock(info, rr->rr_fid1, lhs, MDS_INODELOCK_UPDATE); if (IS_ERR(ms)) RETURN(PTR_ERR(ms)); if (strlen(rr->rr_name) == 0) { /* remote partial operation */ rc = mo_ref_add(info->mti_ctxt, mdt_object_child(ms)); GOTO(out_unlock_source, rc); } /*step 2: find & lock the target parent dir*/ lhp = &info->mti_lh[MDT_LH_CHILD]; lhp->mlh_mode = LCK_EX; mp = mdt_object_find_lock(info, rr->rr_fid2, lhp, MDS_INODELOCK_UPDATE); if (IS_ERR(mp)) GOTO(out_unlock_source, rc = PTR_ERR(mp)); /* step 4: link it */ mdt_fail_write(info->mti_ctxt, info->mti_mdt->mdt_bottom, OBD_FAIL_MDS_REINT_LINK_WRITE); rc = mdo_link(info->mti_ctxt, mdt_object_child(mp), mdt_object_child(ms), rr->rr_name, ma); GOTO(out_unlock_target, rc); out_unlock_target: mdt_object_unlock_put(info, mp, lhp, rc); out_unlock_source: mdt_object_unlock_put(info, ms, lhs, rc); return rc; } /* partial operation for rename */ static int mdt_reint_rename_tgt(struct mdt_thread_info *info) { struct mdt_reint_record *rr = &info->mti_rr; struct ptlrpc_request *req = mdt_info_req(info); struct md_attr *ma = &info->mti_attr; struct mdt_object *mtgtdir; struct mdt_object *mtgt = NULL; struct mdt_lock_handle *lh_tgtdir; struct mdt_lock_handle *lh_tgt; struct lu_fid *tgt_fid = &info->mti_tmp_fid1; int rc; ENTRY; DEBUG_REQ(D_INODE, req, "rename_tgt "DFID" to "DFID" %s", PFID(rr->rr_fid2), PFID(rr->rr_fid1), rr->rr_tgt); /* step 1: lookup & lock the tgt dir */ lh_tgt = &info->mti_lh[MDT_LH_CHILD]; lh_tgtdir = &info->mti_lh[MDT_LH_PARENT]; lh_tgtdir->mlh_mode = LCK_EX; mtgtdir = mdt_object_find_lock(info, rr->rr_fid1, lh_tgtdir, MDS_INODELOCK_UPDATE); if (IS_ERR(mtgtdir)) GOTO(out, rc = PTR_ERR(mtgtdir)); /*step 2: find & lock the target object if exists*/ rc = mdo_lookup(info->mti_ctxt, mdt_object_child(mtgtdir), rr->rr_tgt, tgt_fid); if (rc != 0 && rc != -ENOENT) { GOTO(out_unlock_tgtdir, rc); } else if (rc == 0) { lh_tgt->mlh_mode = LCK_EX; mtgt = mdt_object_find_lock(info, tgt_fid, lh_tgt, MDS_INODELOCK_LOOKUP); if (IS_ERR(mtgt)) GOTO(out_unlock_tgtdir, rc = PTR_ERR(mtgt)); rc = mdo_rename_tgt(info->mti_ctxt, mdt_object_child(mtgtdir), mdt_object_child(mtgt), rr->rr_fid2, rr->rr_tgt, ma); } else /* -ENOENT */ { rc = mdo_name_insert(info->mti_ctxt, mdt_object_child(mtgtdir), rr->rr_tgt, rr->rr_fid2, S_ISDIR(ma->ma_attr.la_mode)); } /* handle last link of tgt object */ if (mtgt) mdt_handle_last_unlink(info, mtgt, ma); GOTO(out_unlock_tgt, rc); out_unlock_tgt: if (mtgt) { mdt_object_unlock_put(info, mtgt, lh_tgt, rc); } out_unlock_tgtdir: mdt_object_unlock_put(info, mtgtdir, lh_tgtdir, rc); out: return rc; } static int mdt_rename_lock(struct mdt_thread_info *info, struct lustre_handle *lh) { ldlm_policy_data_t policy = { .l_inodebits = { MDS_INODELOCK_UPDATE } }; struct ldlm_namespace *ns = info->mti_mdt->mdt_namespace; int flags = LDLM_FL_ATOMIC_CB; struct ldlm_res_id res_id; struct lu_site *ls; int rc; ENTRY; ls = info->mti_mdt->mdt_md_dev.md_lu_dev.ld_site; fid_build_res_name(&LUSTRE_BFL_FID, &res_id); if (ls->ls_control_exp == NULL) { /* * Current node is controller, that is mdt0 where we should take * BFL lock. */ rc = ldlm_cli_enqueue_local(ns, res_id, LDLM_IBITS, &policy, LCK_EX, &flags, ldlm_blocking_ast, ldlm_completion_ast, NULL, NULL, 0, NULL, lh); } else { /* * This is the case mdt0 is remote node, issue DLM lock like * other clients. */ rc = ldlm_cli_enqueue(ls->ls_control_exp, NULL, res_id, LDLM_IBITS, &policy, LCK_EX, &flags, ldlm_blocking_ast, ldlm_completion_ast, NULL, NULL, NULL, 0, NULL, lh, 0); } RETURN(rc); } static void mdt_rename_unlock(struct lustre_handle *lh) { ENTRY; ldlm_lock_decref(lh, LCK_EX); EXIT; } /* * This is is_subdir() variant, it is CMD is cmm forwards it to correct * target. Source should not be ancestor of target dir. May be other rename * checks can be moved here later. */ static int mdt_rename_check(struct mdt_thread_info *info, struct lu_fid *fid) { struct mdt_reint_record *rr = &info->mti_rr; struct lu_fid dst_fid = *rr->rr_fid2; struct mdt_object *dst; int rc = 0; ENTRY; do { dst = mdt_object_find(info->mti_ctxt, info->mti_mdt, &dst_fid); if (!IS_ERR(dst)) { rc = mdo_is_subdir(info->mti_ctxt, mdt_object_child(dst), fid, &dst_fid); mdt_object_put(info->mti_ctxt, dst); if (rc < 0) { CERROR("Error while doing mdo_is_subdir(), rc %d\n", rc); } else if (rc == 1) { rc = -EINVAL; } } else { rc = PTR_ERR(dst); } } while (rc == EREMOTE); RETURN(rc); } static int mdt_reint_rename(struct mdt_thread_info *info) { struct mdt_reint_record *rr = &info->mti_rr; struct req_capsule *pill = &info->mti_pill; struct ptlrpc_request *req = mdt_info_req(info); struct md_attr *ma = &info->mti_attr; struct mdt_object *msrcdir; struct mdt_object *mtgtdir; struct mdt_object *mold; struct mdt_object *mnew = NULL; struct mdt_lock_handle *lh_srcdirp; struct mdt_lock_handle *lh_tgtdirp; struct mdt_lock_handle *lh_oldp; struct mdt_lock_handle *lh_newp; struct lu_fid *old_fid = &info->mti_tmp_fid1; struct lu_fid *new_fid = &info->mti_tmp_fid2; struct lustre_handle rename_lh = { 0 }; int rc; ENTRY; DEBUG_REQ(D_INODE, req, "rename "DFID"/%s to "DFID"/%s", PFID(rr->rr_fid1), rr->rr_name, PFID(rr->rr_fid2), rr->rr_tgt); rc = req_capsule_get_size(pill, &RMF_NAME, RCL_CLIENT); if (rc == 1) { /* if (rr->rr_name[0] == 0) {*/ rc = mdt_reint_rename_tgt(info); GOTO(out, rc); } rc = mdt_rename_lock(info, &rename_lh); if (rc) { CERROR("can't lock FS for rename, rc %d\n", rc); RETURN(rc); } lh_newp = &info->mti_lh[MDT_LH_NEW]; /* step 1: lock the source dir */ lh_srcdirp = &info->mti_lh[MDT_LH_PARENT]; lh_srcdirp->mlh_mode = LCK_EX; msrcdir = mdt_object_find_lock(info, rr->rr_fid1, lh_srcdirp, MDS_INODELOCK_UPDATE); if (IS_ERR(msrcdir)) GOTO(out, rc = PTR_ERR(msrcdir)); /*step 2: find & lock the target dir*/ lh_tgtdirp = &info->mti_lh[MDT_LH_CHILD]; lh_tgtdirp->mlh_mode = LCK_EX; if (lu_fid_eq(rr->rr_fid1, rr->rr_fid2)) { mdt_object_get(info->mti_ctxt, msrcdir); mtgtdir = msrcdir; } else { mtgtdir = mdt_object_find_lock(info, rr->rr_fid2, lh_tgtdirp, MDS_INODELOCK_UPDATE); if (IS_ERR(mtgtdir)) GOTO(out_unlock_source, rc = PTR_ERR(mtgtdir)); } /*step 3: find & lock the old object*/ rc = mdo_lookup(info->mti_ctxt, mdt_object_child(msrcdir), rr->rr_name, old_fid); if (rc != 0) GOTO(out_unlock_target, rc); if (lu_fid_eq(old_fid, rr->rr_fid1) || lu_fid_eq(old_fid, rr->rr_fid2)) GOTO(out_unlock_target, rc = -EINVAL); lh_oldp = &info->mti_lh[MDT_LH_OLD]; lh_oldp->mlh_mode = LCK_EX; mold = mdt_object_find_lock(info, old_fid, lh_oldp, MDS_INODELOCK_LOOKUP); if (IS_ERR(mold)) GOTO(out_unlock_target, rc = PTR_ERR(mold)); /*step 4: find & lock the new object*/ /* new target object may not exist now */ rc = mdo_lookup(info->mti_ctxt, mdt_object_child(mtgtdir), rr->rr_tgt, new_fid); if (rc == 0) { /* the new_fid should have been filled at this moment*/ if (lu_fid_eq(old_fid, new_fid)) GOTO(out_unlock_old, rc); if (lu_fid_eq(new_fid, rr->rr_fid1) || lu_fid_eq(new_fid, rr->rr_fid2)) GOTO(out_unlock_old, rc = -EINVAL); lh_newp->mlh_mode = LCK_EX; mnew = mdt_object_find_lock(info, new_fid, lh_newp, MDS_INODELOCK_FULL); if (IS_ERR(mnew)) GOTO(out_unlock_old, rc = PTR_ERR(mnew)); } else if (rc != -EREMOTE && rc != -ENOENT) GOTO(out_unlock_old, rc); /* step 5: dome some checking ...*/ /* step 6: rename it */ ma->ma_lmm = req_capsule_server_get(&info->mti_pill, &RMF_MDT_MD); ma->ma_lmm_size = req_capsule_get_size(&info->mti_pill, &RMF_MDT_MD, RCL_SERVER); ma->ma_cookie = req_capsule_server_get(&info->mti_pill, &RMF_LOGCOOKIES); ma->ma_cookie_size = req_capsule_get_size(&info->mti_pill, &RMF_LOGCOOKIES, RCL_SERVER); if (!ma->ma_lmm || !ma->ma_cookie) GOTO(out_unlock_new, rc = -EINVAL); ma->ma_need = MA_INODE | MA_LOV | MA_COOKIE; mdt_fail_write(info->mti_ctxt, info->mti_mdt->mdt_bottom, OBD_FAIL_MDS_REINT_RENAME_WRITE); /* Check if @dst is subdir of @src. */ rc = mdt_rename_check(info, old_fid); if (rc) GOTO(out_unlock_new, rc); rc = mdo_rename(info->mti_ctxt, mdt_object_child(msrcdir), mdt_object_child(mtgtdir), old_fid, rr->rr_name, (mnew ? mdt_object_child(mnew) : NULL), rr->rr_tgt, ma); /* handle last link of tgt object */ if (mnew) mdt_handle_last_unlink(info, mnew, ma); out_unlock_new: if (mnew) { mdt_object_unlock_put(info, mnew, lh_newp, rc); } out_unlock_old: mdt_object_unlock_put(info, mold, lh_oldp, rc); out_unlock_target: mdt_object_unlock_put(info, mtgtdir, lh_tgtdirp, rc); out_unlock_source: mdt_object_unlock_put(info, msrcdir, lh_srcdirp, rc); out: mdt_rename_unlock(&rename_lh); mdt_shrink_reply(info, REPLY_REC_OFF + 1); return rc; } typedef int (*mdt_reinter)(struct mdt_thread_info *info); static mdt_reinter reinters[REINT_MAX] = { [REINT_SETATTR] = mdt_reint_setattr, [REINT_CREATE] = mdt_reint_create, [REINT_LINK] = mdt_reint_link, [REINT_UNLINK] = mdt_reint_unlink, [REINT_RENAME] = mdt_reint_rename, [REINT_OPEN] = mdt_open }; int mdt_reint_rec(struct mdt_thread_info *info) { int rc; ENTRY; rc = reinters[info->mti_rr.rr_opcode](info); RETURN(rc); }