/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * lustre/mds/handler.c
- * Lustre Metadata Server (mds) request handler
+ * GPL HEADER START
*
- * Copyright (c) 2001-2003 Cluster File Systems, Inc.
- * Author: Peter Braam <braam@clusterfs.com>
- * Author: Andreas Dilger <adilger@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- * Author: Mike Shaver <shaver@clusterfs.com>
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Lustre is free 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.
+ * This program 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 GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * 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
- * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/mds/handler.c
+ *
+ * Author: Peter Braam <braam@clusterfs.com>
+ * Author: Andreas Dilger <adilger@clusterfs.com>
+ * Author: Phil Schwan <phil@clusterfs.com>
+ * Author: Mike Shaver <shaver@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDS
+#include <lustre_mds.h>
#include <linux/module.h>
-#include <linux/lustre_mds.h>
-#include <linux/lustre_dlm.h>
#include <linux/init.h>
-#include <linux/obd_class.h>
-#include <linux/random.h>
#include <linux/fs.h>
#include <linux/jbd.h>
-#include <linux/namei.h>
-#include <linux/ext3_fs.h>
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
-# include <linux/smp_lock.h>
-# include <linux/buffer_head.h>
-# include <linux/workqueue.h>
-# include <linux/mount.h>
-#else
-# include <linux/locks.h>
-#endif
-#include <linux/obd_lov.h>
-#include <linux/obd_ost.h>
-#include <linux/lustre_mds.h>
-#include <linux/lustre_fsfilt.h>
-#include <linux/lprocfs_status.h>
-#include <linux/lustre_commit_confd.h>
-#include <linux/lustre_acl.h>
-#include <linux/lustre_sec.h>
-#include <linux/lustre_gs.h>
-#include <linux/lustre_audit.h>
+#include <linux/smp_lock.h>
+#include <linux/buffer_head.h>
+#include <linux/workqueue.h>
+#include <linux/mount.h>
+
+#include <lustre_acl.h>
+#include <obd_class.h>
+#include <lustre_dlm.h>
+#include <obd_lov.h>
+#include <lustre_fsfilt.h>
+#include <lprocfs_status.h>
+#include <lustre_disk.h>
+#include <lustre_param.h>
#include "mds_internal.h"
-extern int mds_audit_auth(struct ptlrpc_request *, struct lvfs_ucred *,
- audit_op, struct lustre_id *,
- char *, int);
-extern int mds_audit_stat(struct ptlrpc_request *, struct lustre_id *,
- struct dentry *, int);
-extern int mds_audit_open(struct ptlrpc_request *, struct mds_update_record *,
- int);
-
-static int mds_intent_policy(struct ldlm_namespace *ns,
- struct ldlm_lock **lockp, void *req_cookie,
- ldlm_mode_t mode, int flags, void *data);
-static int mds_postsetup(struct obd_device *obd);
-static int mds_cleanup(struct obd_device *obd, int flags);
-
-
-/* Assumes caller has already pushed into the kernel filesystem context */
-static int mds_sendpage(struct ptlrpc_request *req, struct file *file,
- loff_t offset, int count)
-{
- struct ptlrpc_bulk_desc *desc;
- struct l_wait_info lwi;
- struct page **pages;
- int rc = 0, npages, i, tmpcount, tmpsize = 0;
- ENTRY;
-
- LASSERT((offset & (PAGE_SIZE - 1)) == 0); /* I'm dubious about this */
-
- npages = (count + PAGE_SIZE - 1) >> PAGE_SHIFT;
- OBD_ALLOC(pages, sizeof(*pages) * npages);
- if (!pages)
- GOTO(out, rc = -ENOMEM);
-
- desc = ptlrpc_prep_bulk_exp(req, npages, BULK_PUT_SOURCE,
- MDS_BULK_PORTAL);
- if (desc == NULL)
- GOTO(out_free, rc = -ENOMEM);
-
- for (i = 0, tmpcount = count; i < npages; i++, tmpcount -= tmpsize) {
- tmpsize = tmpcount > PAGE_SIZE ? PAGE_SIZE : tmpcount;
-
- pages[i] = alloc_pages(GFP_KERNEL, 0);
- if (pages[i] == NULL)
- GOTO(cleanup_buf, rc = -ENOMEM);
-
- ptlrpc_prep_bulk_page(desc, pages[i], 0, tmpsize);
- }
-
- for (i = 0, tmpcount = count; i < npages; i++, tmpcount -= tmpsize) {
- tmpsize = tmpcount > PAGE_SIZE ? PAGE_SIZE : tmpcount;
- CDEBUG(D_EXT2, "reading %u@%llu from dir %lu (size %llu)\n",
- tmpsize, offset, file->f_dentry->d_inode->i_ino,
- file->f_dentry->d_inode->i_size);
-
- rc = fsfilt_readpage(req->rq_export->exp_obd, file,
- kmap(pages[i]), tmpsize, &offset);
- kunmap(pages[i]);
-
- if (rc != tmpsize)
- GOTO(cleanup_buf, rc = -EIO);
- }
-
- LASSERT(desc->bd_nob == count);
-
- rc = ptlrpc_start_bulk_transfer(desc);
- if (rc)
- GOTO(cleanup_buf, rc);
-
- if (OBD_FAIL_CHECK(OBD_FAIL_MDS_SENDPAGE)) {
- CERROR("obd_fail_loc=%x, fail operation rc=%d\n",
- OBD_FAIL_MDS_SENDPAGE, rc = -EIO);
- GOTO(abort_bulk, rc);
- }
-
- lwi = LWI_TIMEOUT(obd_timeout * HZ / 4, NULL, NULL);
- rc = l_wait_event(desc->bd_waitq, !ptlrpc_bulk_active(desc), &lwi);
- LASSERT (rc == 0 || rc == -ETIMEDOUT);
-
- if (rc == 0) {
- if (desc->bd_success &&
- desc->bd_nob_transferred == count)
- GOTO(cleanup_buf, rc);
-
- rc = -ETIMEDOUT; /* XXX should this be a different errno? */
- }
-
- DEBUG_REQ(D_ERROR, req, "bulk failed: %s %d(%d), evicting %s@%s\n",
- (rc == -ETIMEDOUT) ? "timeout" : "network error",
- desc->bd_nob_transferred, count,
- req->rq_export->exp_client_uuid.uuid,
- req->rq_export->exp_connection->c_remote_uuid.uuid);
-
- ptlrpc_fail_export(req->rq_export);
-
- EXIT;
- abort_bulk:
- ptlrpc_abort_bulk (desc);
- cleanup_buf:
- for (i = 0; i < npages; i++)
- if (pages[i])
- __free_pages(pages[i], 0);
-
- ptlrpc_free_bulk(desc);
- out_free:
- OBD_FREE(pages, sizeof(*pages) * npages);
- out:
- return rc;
-}
-
-extern char *ldlm_lockname[];
-
-int mds_lock_mode_for_dir(struct obd_device *obd,
- struct dentry *dentry, int mode)
-{
- int ret_mode = 0, split;
-
- /* any dir access needs couple locks:
- * 1) on part of dir we gonna lookup/modify in
- * 2) on a whole dir to protect it from concurrent splitting
- * and to flush client's cache for readdir()
- * so, for a given mode and dentry this routine decides what
- * lock mode to use for lock #2:
- * 1) if caller's gonna lookup in dir then we need to protect
- * dir from being splitted only - LCK_CR
- * 2) if caller's gonna modify dir then we need to protect
- * dir from being splitted and to flush cache - LCK_CW
- * 3) if caller's gonna modify dir and that dir seems ready
- * for splitting then we need to protect it from any
- * type of access (lookup/modify/split) - LCK_EX -bzzz */
-
- split = mds_splitting_expected(obd, dentry);
-
- /*
- * it is important to check here only for MDS_NO_SPLITTABLE. The reason
- * is that MDS_NO_SPLITTABLE means dir is not splittable in principle
- * and another thread will not split it on the quiet. But if we have
- * MDS_NO_SPLIT_EXPECTED, this means, that dir may be splitted anytime,
- * but not now (for current thread) and we should consider that it can
- * happen soon and go that branch which can yield LCK_EX to protect from
- * possible splitting.
- */
- if (split == MDS_NO_SPLITTABLE) {
- /*
- * this inode won't be splitted. so we need not to protect from
- * just flush client's cache on modification.
- */
- if (mode == LCK_PW)
- ret_mode = LCK_CW;
- else
- ret_mode = 0;
- } else {
- if (mode == LCK_EX) {
- ret_mode = LCK_EX;
- } else if (mode == LCK_PR) {
- ret_mode = LCK_CR;
- } else if (mode == LCK_PW) {
- /*
- * caller gonna modify directory. We use concurrent
- * write lock here to retract client's cache for
- * readdir.
- */
- if (split == MDS_EXPECT_SPLIT) {
- /*
- * splitting possible. serialize any access the
- * idea is that first one seen dir is splittable
- * is given exclusive lock and split
- * directory. caller passes lock mode to
- * mds_try_to_split_dir() and splitting would be
- * done with exclusive lock only -bzzz.
- */
- CDEBUG(D_OTHER, "%s: gonna split %lu/%lu\n",
- obd->obd_name,
- (unsigned long)dentry->d_inode->i_ino,
- (unsigned long)dentry->d_inode->i_generation);
- ret_mode = LCK_EX;
- } else {
- ret_mode = LCK_CW;
- }
- }
- }
-
- return ret_mode;
-}
-
-/* only valid locked dentries or errors should be returned */
-struct dentry *mds_id2locked_dentry(struct obd_device *obd, struct lustre_id *id,
- struct vfsmount **mnt, int lock_mode,
- struct lustre_handle *lockh, int *mode,
- char *name, int namelen, __u64 lockpart)
-{
- struct dentry *de = mds_id2dentry(obd, id, mnt), *retval = de;
- ldlm_policy_data_t policy = { .l_inodebits = { lockpart } };
- struct ldlm_res_id res_id = { .name = {0} };
- int flags = LDLM_FL_ATOMIC_CB, rc;
- ENTRY;
-
- if (IS_ERR(de))
- RETURN(de);
-
- lockh[1].cookie = 0;
- res_id.name[0] = id_fid(id);
- res_id.name[1] = id_group(id);
-
-#ifdef S_PDIROPS
- if (name && IS_PDIROPS(de->d_inode)) {
- ldlm_policy_data_t cpolicy =
- { .l_inodebits = { MDS_INODELOCK_UPDATE } };
- LASSERT(mode != NULL);
- *mode = mds_lock_mode_for_dir(obd, de, lock_mode);
- if (*mode) {
- rc = ldlm_cli_enqueue(NULL, NULL, obd->obd_namespace,
- res_id, LDLM_IBITS,
- &cpolicy, *mode, &flags,
- mds_blocking_ast,
- ldlm_completion_ast, NULL, NULL,
- NULL, 0, NULL, lockh + 1);
- if (rc != ELDLM_OK) {
- l_dput(de);
- RETURN(ERR_PTR(-ENOLCK));
- }
- }
- flags = LDLM_FL_ATOMIC_CB;
-
- res_id.name[2] = full_name_hash((unsigned char *)name, namelen);
-
- CDEBUG(D_INFO, "take lock on "DLID4":"LPX64"\n",
- OLID4(id), res_id.name[2]);
- }
-#else
-#warning "No PDIROPS support in the kernel"
-#endif
- rc = ldlm_cli_enqueue(NULL, NULL, obd->obd_namespace, res_id,
- LDLM_IBITS, &policy, lock_mode, &flags,
- mds_blocking_ast, ldlm_completion_ast,
- NULL, NULL, NULL, 0, NULL, lockh);
- if (rc != ELDLM_OK) {
- l_dput(de);
- retval = ERR_PTR(-EIO); /* XXX translate ldlm code */
-#ifdef S_PDIROPS
- if (lockh[1].cookie)
- ldlm_lock_decref(lockh + 1, *mode);
-#endif
- } else if (de->d_inode && de->d_inode->i_nlink == 0) {
- /* as sometimes we lookup inode by ino/generation through
- iopen mechanism, it's possible to find already unlinked
- inode with nlink == 0. let's interpretate the case as
- ENOENT -bzzz */
- CWARN("found already unlinked inode %lu/%u\n",
- de->d_inode->i_ino, de->d_inode->i_generation);
- l_dput(de);
- retval = ERR_PTR(-ENOENT);
- ldlm_lock_decref(lockh, lock_mode);
-#ifdef S_PDIROPS
- if (lockh[1].cookie)
- ldlm_lock_decref(lockh + 1, *mode);
-#endif
- }
-
- RETURN(retval);
-}
-
-#ifndef DCACHE_DISCONNECTED
-#define DCACHE_DISCONNECTED DCACHE_NFSD_DISCONNECTED
-#endif
+__u32 mds_max_ost_index=0xFFFF;
+CFS_MODULE_PARM(mds_max_ost_index, "i", int, 0444,
+ "maximal OST index");
-/* Look up an entry by inode number. This function ONLY returns valid dget'd
- * dentries with an initialized inode or errors */
-struct dentry *mds_id2dentry(struct obd_device *obd, struct lustre_id *id,
- struct vfsmount **mnt)
+/* Look up an entry by inode number. */
+/* this function ONLY returns valid dget'd dentries with an initialized inode
+ or errors */
+struct dentry *mds_fid2dentry(struct mds_obd *mds, struct ll_fid *fid,
+ struct vfsmount **mnt)
{
- struct mds_obd *mds = &obd->u.mds;
- struct dentry *result;
+ char fid_name[32];
+ unsigned long ino = fid->id;
+ __u32 generation = fid->generation;
struct inode *inode;
- unsigned long ino = 0;
- __u32 generation;
- char idname[32];
-
- if (!id_ino(id) && id_fid(id)) {
- struct lustre_id *lid;
-
- /* if this is reint case we should use fidmap for resolving
- * correct local store cookie. */
- lid = mds_fidmap_lookup(obd, id);
- if (!lid)
- RETURN(ERR_PTR(-ENOENT));
-
- ino = (unsigned long)id_ino(lid);
- generation = (__u32)id_gen(lid);
-
- CDEBUG(D_DENTRY, "fidmap resolved "DLID4"->"DLID4"\n",
- OLID4(id), OLID4(lid));
-
- } else if (id_ino(id)) {
- ino = (unsigned long)id_ino(id);
- generation = (__u32)id_gen(id);
- } else {
- CERROR("invalid id for lookup "
- DLID4"\n", OLID4(id));
- }
+ struct dentry *result;
if (ino == 0)
RETURN(ERR_PTR(-ESTALE));
- snprintf(idname, sizeof(idname), "0x%lx", ino);
-
- CDEBUG(D_DENTRY, "--> mds_id2dentry: ino/gen %lu/%u, sb %p\n",
- ino, generation, mds->mds_sb);
+ snprintf(fid_name, sizeof(fid_name), "0x%lx", ino);
- /* under ext3 this is neither supposed to return bad inodes nor NULL
- * inodes. */
- result = ll_lookup_one_len(idname, mds->mds_id_de,
- strlen(idname));
+ /* under ext3 this is neither supposed to return bad inodes
+ nor NULL inodes. */
+ result = ll_lookup_one_len(fid_name, mds->mds_fid_de, strlen(fid_name));
if (IS_ERR(result))
RETURN(result);
if (!inode)
RETURN(ERR_PTR(-ENOENT));
- if (is_bad_inode(inode)) {
- CERROR("bad inode returned %lu/%u\n",
- inode->i_ino, inode->i_generation);
+ if (inode->i_generation == 0 || inode->i_nlink == 0) {
+ LCONSOLE_WARN("Found inode with zero generation or link -- this"
+ " may indicate disk corruption (inode: %lu/%u, "
+ "link %lu, count %d)\n", inode->i_ino,
+ inode->i_generation,(unsigned long)inode->i_nlink,
+ atomic_read(&inode->i_count));
dput(result);
RETURN(ERR_PTR(-ENOENT));
}
- /* here we disabled generation check, as root inode i_generation
- * of cache mds and real mds are different. */
- if (id_fid(id) != id_fid(&mds->mds_rootid) && generation != 0 &&
- inode->i_generation != generation) {
+ if (generation && inode->i_generation != generation) {
/* we didn't find the right inode.. */
- if (id_group(id) != mds->mds_num) {
- CERROR("bad inode %lu found, link: %lu, ct: %d, generation "
- "%u != %u, mds %u != %u, request to wrong MDS?\n",
- inode->i_ino, (unsigned long)inode->i_nlink,
- atomic_read(&inode->i_count), inode->i_generation,
- generation, mds->mds_num, (unsigned)id_group(id));
- } else {
- CERROR("bad inode %lu found, link: %lu, ct: %d, generation "
- "%u != %u, inode is recreated while request handled?\n",
- inode->i_ino, (unsigned long)inode->i_nlink,
- atomic_read(&inode->i_count), inode->i_generation,
- generation);
- }
+ CDEBUG(D_INODE, "found wrong generation: inode %lu, link: %lu, "
+ "count: %d, generation %u/%u\n", inode->i_ino,
+ (unsigned long)inode->i_nlink,
+ atomic_read(&inode->i_count), inode->i_generation,
+ generation);
dput(result);
RETURN(ERR_PTR(-ENOENT));
}
if (mnt) {
- *mnt = mds->mds_vfsmnt;
+ *mnt = mds->mds_obt.obt_vfsmnt;
mntget(*mnt);
}
RETURN(result);
}
-static
-int mds_req_add_idmapping(struct ptlrpc_request *req,
- struct mds_export_data *med)
+static int mds_lov_presetup (struct mds_obd *mds, struct lustre_cfg *lcfg)
{
- struct mds_req_sec_desc *rsd;
- struct lustre_sec_desc *lsd;
- int rc;
-
- if (!med->med_remote)
- return 0;
-
- /* maybe we should do it more completely: invalidate the gss ctxt? */
- if (req->rq_mapped_uid == MDS_IDMAP_NOTFOUND) {
- CWARN("didn't find mapped uid\n");
- return -EPERM;
- }
-
- rsd = lustre_swab_mds_secdesc(req, MDS_REQ_SECDESC_OFF);
- if (!rsd) {
- CERROR("Can't unpack security desc\n");
- return -EPROTO;
- }
-
- lsd = mds_get_lsd(req->rq_mapped_uid);
- if (!lsd) {
- CERROR("can't get LSD(%u), no mapping added\n",
- req->rq_mapped_uid);
- return -EPERM;
- }
-
- rc = mds_idmap_add(med->med_idmap, rsd->rsd_uid, lsd->lsd_uid,
- rsd->rsd_gid, lsd->lsd_gid);
- mds_put_lsd(lsd);
- return rc;
-}
+ int rc = 0;
+ ENTRY;
-static
-int mds_req_del_idmapping(struct ptlrpc_request *req,
- struct mds_export_data *med)
-{
- struct mds_req_sec_desc *rsd;
- struct lustre_sec_desc *lsd;
- int rc;
+ if (lcfg->lcfg_bufcount >= 4 && LUSTRE_CFG_BUFLEN(lcfg, 3) > 0) {
+ class_uuid_t uuid;
- if (!med->med_remote)
- return 0;
+ ll_generate_random_uuid(uuid);
+ class_uuid_unparse(uuid, &mds->mds_lov_uuid);
- rsd = lustre_swab_mds_secdesc(req, MDS_REQ_SECDESC_OFF);
- if (!rsd) {
- CERROR("Can't unpack security desc\n");
- return -EPROTO;
- }
+ OBD_ALLOC(mds->mds_profile, LUSTRE_CFG_BUFLEN(lcfg, 3));
+ if (mds->mds_profile == NULL)
+ RETURN(-ENOMEM);
- LASSERT(req->rq_mapped_uid != -1);
- lsd = mds_get_lsd(req->rq_mapped_uid);
- if (!lsd) {
- CERROR("can't get LSD(%u), no idmapping deleted\n",
- req->rq_mapped_uid);
- return -EPERM;
+ strncpy(mds->mds_profile, lustre_cfg_string(lcfg, 3),
+ LUSTRE_CFG_BUFLEN(lcfg, 3));
}
-
- rc = mds_idmap_del(med->med_idmap, rsd->rsd_uid, lsd->lsd_uid,
- rsd->rsd_gid, lsd->lsd_gid);
- mds_put_lsd(lsd);
- return rc;
+ RETURN(rc);
}
-static int mds_init_export_data(struct ptlrpc_request *req,
- struct mds_export_data *med)
+static int mds_lov_clean(struct obd_device *obd)
{
- struct obd_connect_data *data, *reply;
- int ask_remote, ask_local;
+ struct mds_obd *mds = &obd->u.mds;
+ struct obd_device *osc = mds->mds_lov_obd;
ENTRY;
- data = lustre_msg_buf(req->rq_reqmsg, 5, sizeof(*data));
- reply = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*data));
- LASSERT(data && reply);
-
- if (med->med_initialized) {
- CDEBUG(D_SEC, "med already initialized, reconnect?\n");
- goto reply;
- }
-
- ask_remote = data->ocd_connect_flags & OBD_CONNECT_REMOTE;
- ask_local = data->ocd_connect_flags & OBD_CONNECT_LOCAL;
-
- /* currently the policy is simple: satisfy client as possible
- * as we can.
- */
- if (req->rq_auth_uid == -1) {
- if (ask_remote)
- CWARN("null sec is used, force to be local\n");
- med->med_remote = 0;
- } else {
- if (ask_remote) {
- if (!req->rq_remote_realm)
- CWARN("local realm asked to be remote\n");
- med->med_remote = 1;
- } else if (ask_local) {
- if (req->rq_remote_realm)
- CWARN("remote realm asked to be local\n");
- med->med_remote = 0;
- } else
- med->med_remote = (req->rq_remote_realm != 0);
+ if (mds->mds_profile) {
+ class_del_profile(mds->mds_profile);
+ OBD_FREE(mds->mds_profile, strlen(mds->mds_profile) + 1);
+ mds->mds_profile = NULL;
}
- med->med_nllu = data->ocd_nllu[0];
- med->med_nllg = data->ocd_nllu[1];
+ /* There better be a lov */
+ if (!osc)
+ RETURN(0);
+ if (IS_ERR(osc))
+ RETURN(PTR_ERR(osc));
- med->med_initialized = 1;
-reply:
- reply->ocd_connect_flags &= ~(OBD_CONNECT_REMOTE | OBD_CONNECT_LOCAL);
- if (med->med_remote) {
- if (!med->med_idmap)
- med->med_idmap = mds_idmap_alloc();
+ obd_register_observer(osc, NULL);
- if (!med->med_idmap)
- CERROR("Failed to alloc idmap, following request from "
- "this client will be refused\n");
+ /* Give lov our same shutdown flags */
+ osc->obd_force = obd->obd_force;
+ osc->obd_fail = obd->obd_fail;
- reply->ocd_connect_flags |= OBD_CONNECT_REMOTE;
- CDEBUG(D_SEC, "set client as remote\n");
- } else {
- reply->ocd_connect_flags |= OBD_CONNECT_LOCAL;
- CDEBUG(D_SEC, "set client as local\n");
- }
+ /* Cleanup the lov */
+ obd_disconnect(mds->mds_lov_exp);
+ class_manual_cleanup(osc);
RETURN(0);
}
-static void mds_free_export_data(struct mds_export_data *med)
-{
- if (!med->med_idmap)
- return;
-
- LASSERT(med->med_remote);
- mds_idmap_free(med->med_idmap);
- med->med_idmap = NULL;
-}
-
-/* Establish a connection to the MDS.
- *
- * This will set up an export structure for the client to hold state data about
- * that client, like open files, the last operation number it did on the server,
- * etc.
- */
-static int mds_connect(struct lustre_handle *conn, struct obd_device *obd,
- struct obd_uuid *cluuid, struct obd_connect_data *data,
- unsigned long flags)
+static int mds_postsetup(struct obd_device *obd)
{
- struct mds_export_data *med;
- struct mds_client_data *mcd;
- struct obd_export *exp;
- int rc;
+ struct mds_obd *mds = &obd->u.mds;
+ struct llog_ctxt *ctxt;
+ int rc = 0;
ENTRY;
- if (!conn || !obd || !cluuid)
- RETURN(-EINVAL);
-
- /* XXX There is a small race between checking the list and adding a new
- * connection for the same UUID, but the real threat (list corruption
- * when multiple different clients connect) is solved.
- *
- * There is a second race between adding the export to the list, and
- * filling in the client data below. Hence skipping the case of NULL
- * mcd above. We should already be controlling multiple connects at the
- * client, and we can't hold the spinlock over memory allocations
- * without risk of deadlocking.
- */
- rc = class_connect(conn, obd, cluuid);
+ rc = llog_setup(obd, &obd->obd_olg, LLOG_CONFIG_ORIG_CTXT, obd, 0, NULL,
+ &llog_lvfs_ops);
if (rc)
RETURN(rc);
- exp = class_conn2export(conn);
-
- LASSERT(exp != NULL);
- med = &exp->exp_mds_data;
- OBD_ALLOC(mcd, sizeof(*mcd));
- if (!mcd) {
- CERROR("%s: out of memory for client data.\n",
- obd->obd_name);
- GOTO(out, rc = -ENOMEM);
- }
+ rc = llog_setup(obd, &obd->obd_olg, LLOG_LOVEA_ORIG_CTXT, obd, 0, NULL,
+ &llog_lvfs_ops);
+ if (rc)
+ GOTO(err_llog, rc);
- memcpy(mcd->mcd_uuid, cluuid, sizeof(mcd->mcd_uuid));
- med->med_mcd = mcd;
+ mds_changelog_llog_init(obd, obd);
- rc = mds_client_add(obd, &obd->u.mds, med, -1);
- if (rc)
- GOTO(out, rc);
-
- EXIT;
-out:
- if (rc) {
- if (mcd)
- OBD_FREE(mcd, sizeof(*mcd));
- class_disconnect(exp, 0);
- } else {
- class_export_put(exp);
+ if (mds->mds_profile) {
+ struct lustre_profile *lprof;
+ /* The profile defines which osc and mdc to connect to, for a
+ client. We reuse that here to figure out the name of the
+ lov to use (and ignore lprof->lp_md).
+ The profile was set in the config log with
+ LCFG_MOUNTOPT profilenm oscnm mdcnm */
+ lprof = class_get_profile(mds->mds_profile);
+ if (lprof == NULL) {
+ CERROR("No profile found: %s\n", mds->mds_profile);
+ GOTO(err_cleanup, rc = -ENOENT);
+ }
+ rc = mds_lov_connect(obd, lprof->lp_dt);
+ if (rc)
+ GOTO(err_cleanup, rc);
}
+
+ RETURN(rc);
+
+err_cleanup:
+ mds_lov_clean(obd);
+ ctxt = llog_get_context(obd, LLOG_LOVEA_ORIG_CTXT);
+ if (ctxt)
+ llog_cleanup(ctxt);
+err_llog:
+ ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
+ if (ctxt)
+ llog_cleanup(ctxt);
return rc;
}
-static int mds_connect_post(struct obd_export *exp, unsigned initial,
- unsigned long flags)
+int mds_postrecov(struct obd_device *obd)
{
- struct obd_device *obd = exp->exp_obd;
- struct mds_obd *mds = &obd->u.mds;
- struct mds_export_data *med;
- struct mds_client_data *mcd;
int rc = 0;
ENTRY;
- med = &exp->exp_mds_data;
- mcd = med->med_mcd;
+ if (obd->obd_fail)
+ RETURN(0);
- if (initial) {
- /* some one reconnect initially, we have to reset
- * data existing export can have. bug 6102 */
- if (mcd->mcd_last_xid != 0)
- CDEBUG(D_HA, "initial reconnect to existing export\n");
- mcd->mcd_last_transno = 0;
- mcd->mcd_last_xid = 0;
- mcd->mcd_last_close_xid = 0;
- mcd->mcd_last_result = 0;
- mcd->mcd_last_data = 0;
- }
+ LASSERT(!obd->obd_recovering);
+ /* clean PENDING dir */
+#if 0
+ if (strncmp(obd->obd_name, MDD_OBD_NAME, strlen(MDD_OBD_NAME)))
+ rc = mds_cleanup_pending(obd);
+ if (rc < 0)
+ GOTO(out, rc);
+#endif
+ /* FIXME Does target_finish_recovery really need this to block? */
+ /* Notify the LOV, which will in turn call mds_notify for each tgt */
+ /* This means that we have to hack obd_notify to think we're obd_set_up
+ during mds_lov_connect. */
+ obd_notify(obd->u.mds.mds_lov_obd, NULL,
+ obd->obd_async_recov ? OBD_NOTIFY_SYNC_NONBLOCK :
+ OBD_NOTIFY_SYNC, NULL);
- if (!(flags & OBD_OPT_MDS_CONNECTION)) {
- if (!(exp->exp_flags & OBD_OPT_REAL_CLIENT)) {
- atomic_inc(&mds->mds_real_clients);
- CDEBUG(D_OTHER,"%s: peer from %s is real client (%d)\n",
- obd->obd_name, exp->exp_client_uuid.uuid,
- atomic_read(&mds->mds_real_clients));
- exp->exp_flags |= OBD_OPT_REAL_CLIENT;
- }
- if (mds->mds_md_name)
- rc = mds_md_connect(obd, mds->mds_md_name);
- }
RETURN(rc);
}
-static int mds_init_export(struct obd_export *exp)
+/* We need to be able to stop an mds_lov_synchronize */
+static int mds_lov_early_clean(struct obd_device *obd)
{
- struct mds_export_data *med = &exp->exp_mds_data;
+ struct mds_obd *mds = &obd->u.mds;
+ struct obd_device *osc = mds->mds_lov_obd;
- INIT_LIST_HEAD(&med->med_open_head);
- spin_lock_init(&med->med_open_lock);
- return 0;
+ if (!osc || (!obd->obd_force && !obd->obd_fail))
+ return(0);
+
+ CDEBUG(D_HA, "abort inflight\n");
+ return (obd_precleanup(osc, OBD_CLEANUP_EARLY));
}
-static int mds_destroy_export(struct obd_export *export)
+static int mds_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
{
- struct obd_device *obd = export->exp_obd;
- struct mds_export_data *med = &export->exp_mds_data;
- struct lvfs_run_ctxt saved;
+ struct mds_obd *mds = &obd->u.mds;
+ struct llog_ctxt *ctxt;
int rc = 0;
ENTRY;
- mds_free_export_data(med);
- target_destroy_export(export);
-
- if (obd_uuid_equals(&export->exp_client_uuid, &obd->obd_uuid))
- GOTO(out, 0);
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- /* Close any open files (which may also cause orphan unlinking). */
- spin_lock(&med->med_open_lock);
- while (!list_empty(&med->med_open_head)) {
- struct list_head *tmp = med->med_open_head.next;
- struct mds_file_data *mfd =
- list_entry(tmp, struct mds_file_data, mfd_list);
- struct lustre_id sid;
-
- BDEVNAME_DECLARE_STORAGE(btmp);
-
- /* bug 1579: fix force-closing for 2.5 */
- struct dentry *dentry = mfd->mfd_dentry;
-
- list_del(&mfd->mfd_list);
- spin_unlock(&med->med_open_lock);
-
- down(&dentry->d_inode->i_sem);
- rc = mds_read_inode_sid(obd, dentry->d_inode, &sid);
- up(&dentry->d_inode->i_sem);
- if (rc) {
- CERROR("Can't read inode self id, inode %lu, "
- "rc %d\n", dentry->d_inode->i_ino, rc);
- memset(&sid, 0, sizeof(sid));
- }
-
- /* If you change this message, be sure to update
- * replay_single:test_46 */
- CERROR("force closing client file handle for %.*s (%s:"
- DLID4")\n", dentry->d_name.len, dentry->d_name.name,
- ll_bdevname(dentry->d_inode->i_sb, btmp),
- OLID4(&sid));
-
- /* child inode->i_alloc_sem protects orphan_dec_test and
- * is_orphan race, mds_mfd_close drops it */
- DOWN_WRITE_I_ALLOC_SEM(dentry->d_inode);
- rc = mds_mfd_close(NULL, 0, obd, mfd,
- !(export->exp_flags & OBD_OPT_FAILOVER));
- if (rc)
- CDEBUG(D_INODE, "Error closing file: %d\n", rc);
- spin_lock(&med->med_open_lock);
+ switch (stage) {
+ case OBD_CLEANUP_EARLY:
+ break;
+ case OBD_CLEANUP_EXPORTS:
+ mds_lov_early_clean(obd);
+ cfs_down_write(&mds->mds_notify_lock);
+ mds_lov_disconnect(obd);
+ mds_lov_clean(obd);
+ ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
+ if (ctxt)
+ llog_cleanup(ctxt);
+ ctxt = llog_get_context(obd, LLOG_LOVEA_ORIG_CTXT);
+ if (ctxt)
+ llog_cleanup(ctxt);
+ rc = obd_llog_finish(obd, 0);
+ mds->mds_lov_exp = NULL;
+ cfs_up_write(&mds->mds_notify_lock);
+ break;
}
- spin_unlock(&med->med_open_lock);
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- EXIT;
-out:
- mds_client_free(export, !(export->exp_flags & OBD_OPT_FAILOVER));
- return rc;
+ RETURN(rc);
}
-static int mds_disconnect(struct obd_export *exp, unsigned long flags)
+static struct dentry *mds_lvfs_fid2dentry(__u64 id, __u32 gen, __u64 gr,
+ void *data)
{
- unsigned long irqflags;
- struct obd_device *obd;
- struct mds_obd *mds;
- int rc;
- ENTRY;
-
- LASSERT(exp != NULL);
- obd = class_exp2obd(exp);
- if (obd == NULL) {
- CDEBUG(D_IOCTL, "invalid client cookie "LPX64"\n",
- exp->exp_handle.h_cookie);
- RETURN(-EINVAL);
- }
- mds = &obd->u.mds;
-
- /*
- * suppress any inter-mds requests durring disconnecting lmv if this is
- * detected --force mode. This is needed to avoid endless recovery.
- */
- if (atomic_read(&mds->mds_real_clients) > 0 &&
- !(exp->exp_flags & OBD_OPT_REAL_CLIENT))
- flags |= OBD_OPT_FORCE;
-
- if (!(exp->exp_flags & OBD_OPT_REAL_CLIENT)
- && !atomic_read(&mds->mds_real_clients)) {
- /* there was no client at all */
- mds_md_disconnect(obd, flags);
- }
-
- if ((exp->exp_flags & OBD_OPT_REAL_CLIENT)
- && atomic_dec_and_test(&mds->mds_real_clients)) {
- /* time to drop LMV connections */
- CDEBUG(D_OTHER, "%s: last real client %s disconnected. "
- "Disconnnect from LMV now\n",
- obd->obd_name, exp->exp_client_uuid.uuid);
- mds_md_disconnect(obd, flags);
- }
-
- spin_lock_irqsave(&exp->exp_lock, irqflags);
- exp->exp_flags = flags;
- spin_unlock_irqrestore(&exp->exp_lock, irqflags);
-
- /* disconnect early so that clients can't keep using export */
- rc = class_disconnect(exp, flags);
- ldlm_cancel_locks_for_export(exp);
+ struct obd_device *obd = data;
+ struct ll_fid fid;
+ fid.id = id;
+ fid.generation = gen;
+ return mds_fid2dentry(&obd->u.mds, &fid, NULL);
+}
- /* complete all outstanding replies */
- spin_lock_irqsave(&exp->exp_lock, irqflags);
- while (!list_empty(&exp->exp_outstanding_replies)) {
- struct ptlrpc_reply_state *rs =
- list_entry(exp->exp_outstanding_replies.next,
- struct ptlrpc_reply_state, rs_exp_list);
- struct ptlrpc_service *svc = rs->rs_srv_ni->sni_service;
- spin_lock(&svc->srv_lock);
- list_del_init(&rs->rs_exp_list);
- ptlrpc_schedule_difficult_reply(rs);
- spin_unlock(&svc->srv_lock);
- }
- spin_unlock_irqrestore(&exp->exp_lock, irqflags);
- RETURN(rc);
-}
+struct lvfs_callback_ops mds_lvfs_ops = {
+ l_fid2dentry: mds_lvfs_fid2dentry,
+};
-static int mds_getstatus(struct ptlrpc_request *req)
+static void mds_init_ctxt(struct obd_device *obd, struct vfsmount *mnt)
{
- struct mds_obd *mds = mds_req2mds(req);
- struct mds_body *body;
- int rc, size;
- ENTRY;
-
- size = sizeof(*body);
-
- rc = lustre_pack_reply(req, 1, &size, NULL);
- if (rc || OBD_FAIL_CHECK(OBD_FAIL_MDS_GETSTATUS_PACK)) {
- CERROR("mds: out of memory for message: size=%d\n", size);
- req->rq_status = -ENOMEM; /* superfluous? */
- RETURN(-ENOMEM);
- }
+ struct mds_obd *mds = &obd->u.mds;
- body = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*body));
- body->valid |= OBD_MD_FID;
-
- memcpy(&body->id1, &mds->mds_rootid, sizeof(body->id1));
+ mds->mds_obt.obt_vfsmnt = mnt;
+ /* why not mnt->mnt_sb instead of mnt->mnt_root->d_inode->i_sb? */
+ obd->u.obt.obt_sb = mnt->mnt_root->d_inode->i_sb;
+ obd->u.obt.obt_magic = OBT_MAGIC;
+ fsfilt_setup(obd, obd->u.obt.obt_sb);
- /*
- * the last_committed and last_xid fields are filled in for all replies
- * already - no need to do so here also.
- */
- RETURN(0);
+ OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt);
+ obd->obd_lvfs_ctxt.pwdmnt = mnt;
+ obd->obd_lvfs_ctxt.pwd = mnt->mnt_root;
+ obd->obd_lvfs_ctxt.fs = get_ds();
+ obd->obd_lvfs_ctxt.cb_ops = mds_lvfs_ops;
+ return;
}
-int mds_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
- void *data, int flag)
+/*mds still need lov setup here*/
+static int mds_cmd_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
{
- int do_ast;
+ struct mds_obd *mds = &obd->u.mds;
+ struct lvfs_run_ctxt saved;
+ const char *dev;
+ struct vfsmount *mnt;
+ struct lustre_sb_info *lsi;
+ struct lustre_mount_info *lmi;
+ struct dentry *dentry;
+ int rc = 0;
ENTRY;
- if (flag == LDLM_CB_CANCELING) {
- /* Don't need to do anything here. */
+ CDEBUG(D_INFO, "obd %s setup \n", obd->obd_name);
+ if (strncmp(obd->obd_name, MDD_OBD_NAME, strlen(MDD_OBD_NAME)))
RETURN(0);
+
+ if (lcfg->lcfg_bufcount < 5) {
+ CERROR("invalid arg for setup %s\n", MDD_OBD_NAME);
+ RETURN(-EINVAL);
}
+ dev = lustre_cfg_string(lcfg, 4);
+ lmi = server_get_mount(dev);
+ LASSERT(lmi != NULL);
- /* XXX layering violation! -phil */
- lock_res_and_lock(lock);
-
- /*
- * get this: if mds_blocking_ast is racing with mds_intent_policy, such
- * that mds_blocking_ast is called just before l_i_p takes the ns_lock,
- * then by the time we get the lock, we might not be the correct
- * blocking function anymore. So check, and return early, if so.
+ lsi = s2lsi(lmi->lmi_sb);
+ mnt = lmi->lmi_mnt;
+ /* FIXME: MDD LOV initialize objects.
+ * we need only lmi here but not get mount
+ * OSD did mount already, so put mount back
*/
- if (lock->l_blocking_ast != mds_blocking_ast) {
- unlock_res_and_lock(lock);
- RETURN(0);
- }
+ cfs_atomic_dec(&lsi->lsi_mounts);
+ mntput(mnt);
+ cfs_init_rwsem(&mds->mds_notify_lock);
- lock->l_flags |= LDLM_FL_CBPENDING;
- do_ast = (!lock->l_readers && !lock->l_writers);
- unlock_res_and_lock(lock);
+ obd->obd_fsops = fsfilt_get_ops(MT_STR(lsi->lsi_ldd));
+ mds_init_ctxt(obd, mnt);
- if (do_ast) {
- struct lustre_handle lockh;
- int rc;
+ push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
+ dentry = simple_mkdir(cfs_fs_pwd(current->fs), mnt, "OBJECTS", 0777, 1);
+ if (IS_ERR(dentry)) {
+ rc = PTR_ERR(dentry);
+ CERROR("cannot create OBJECTS directory: rc = %d\n", rc);
+ GOTO(err_putfs, rc);
+ }
+ mds->mds_objects_dir = dentry;
- LDLM_DEBUG(lock, "already unused, calling ldlm_cli_cancel");
- ldlm_lock2handle(lock, &lockh);
- rc = ldlm_cli_cancel(&lockh);
- if (rc < 0)
- CERROR("ldlm_cli_cancel: %d\n", rc);
- } else {
- LDLM_DEBUG(lock, "Lock still has references, will be "
- "cancelled later");
+ dentry = ll_lookup_one_len("__iopen__", cfs_fs_pwd(current->fs),
+ strlen("__iopen__"));
+ if (IS_ERR(dentry)) {
+ rc = PTR_ERR(dentry);
+ CERROR("cannot lookup __iopen__ directory: rc = %d\n", rc);
+ GOTO(err_objects, rc);
}
- RETURN(0);
-}
-static int mds_convert_md(struct obd_device *obd, struct inode *inode,
- void *md, int size, int mea)
-{
- int rc = size;
-
- if (S_ISREG(inode->i_mode)) {
- rc = mds_convert_lov_ea(obd, inode, md, size);
- } else if (S_ISDIR(inode->i_mode)) {
- if (mea) {
- rc = mds_convert_mea_ea(obd, inode, md, size);
- } else {
- rc = mds_convert_lov_ea(obd, inode, md, size);
- }
- if (rc == -EINVAL) {
- CERROR("Invalid EA format (nor LOV or MEA) "
- "is detected. Inode %lu/%u\n",
- inode->i_ino, inode->i_generation);
- }
+ mds->mds_fid_de = dentry;
+ if (!dentry->d_inode || is_bad_inode(dentry->d_inode)) {
+ rc = -ENOENT;
+ CERROR("__iopen__ directory has no inode? rc = %d\n", rc);
+ GOTO(err_fid, rc);
+ }
+ rc = mds_lov_init_objids(obd);
+ if (rc != 0) {
+ CERROR("cannot init lov objid rc = %d\n", rc);
+ GOTO(err_fid, rc );
}
- return rc;
-}
-int mds_get_md(struct obd_device *obd, struct inode *inode,
- void *md, int *size, int lock, int mea)
-{
- int lmm_size;
- int rc = 0;
- ENTRY;
+ rc = mds_lov_presetup(mds, lcfg);
+ if (rc < 0)
+ GOTO(err_objects, rc);
- if (lock)
- down(&inode->i_sem);
+ /* Don't wait for mds_postrecov trying to clear orphans */
+ obd->obd_async_recov = 1;
+ rc = mds_postsetup(obd);
+ /* Bug 11557 - allow async abort_recov start
+ FIXME can remove most of this obd_async_recov plumbing
+ obd->obd_async_recov = 0;
+ */
- rc = fsfilt_get_md(obd, inode, md, *size,
- (mea ? EA_MEA : EA_LOV));
- if (rc < 0) {
- CERROR("Error %d reading eadata for ino %lu\n",
- rc, inode->i_ino);
- } else if (rc > 0) {
- lmm_size = rc;
- rc = mds_convert_md(obd, inode, md,
- lmm_size, mea);
- if (rc == 0) {
- *size = lmm_size;
- rc = lmm_size;
- } else if (rc > 0) {
- *size = rc;
- }
- }
- if (lock)
- up(&inode->i_sem);
+ if (rc)
+ GOTO(err_objects, rc);
+err_pop:
+ pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
RETURN(rc);
+err_fid:
+ dput(mds->mds_fid_de);
+err_objects:
+ dput(mds->mds_objects_dir);
+err_putfs:
+ fsfilt_put_ops(obd->obd_fsops);
+ goto err_pop;
}
-/* Call with lock=1 if you want mds_pack_md to take the i_sem.
- * Call with lock=0 if the caller has already taken the i_sem. */
-int mds_pack_md(struct obd_device *obd, struct lustre_msg *msg, int offset,
- struct mds_body *body, struct inode *inode, int lock, int mea)
+static int mds_cmd_cleanup(struct obd_device *obd)
{
struct mds_obd *mds = &obd->u.mds;
- int rc, lmm_size;
- void *lmm;
+ struct lvfs_run_ctxt saved;
+ int rc = 0;
ENTRY;
- lmm = lustre_msg_buf(msg, offset, 0);
- if (lmm == NULL) {
- /* Some problem with getting eadata when I sized the reply
- * buffer... */
- CDEBUG(D_INFO, "no space reserved for inode %lu MD\n",
- inode->i_ino);
- RETURN(0);
- }
- lmm_size = msg->buflens[offset];
+ mds->mds_lov_exp = NULL;
- /* I don't really like this, but it is a sanity check on the client
- * MD request. However, if the client doesn't know how much space
- * to reserve for the MD, it shouldn't be bad to have too much space.
- */
- if (lmm_size > mds->mds_max_mdsize) {
- CWARN("Reading MD for inode %lu of %d bytes > max %d\n",
- inode->i_ino, lmm_size, mds->mds_max_mdsize);
- // RETURN(-EINVAL);
- }
+ if (obd->obd_fail)
+ LCONSOLE_WARN("%s: shutting down for failover; client state "
+ "will be preserved.\n", obd->obd_name);
- rc = mds_get_md(obd, inode, lmm, &lmm_size, lock, mea);
- if (rc > 0) {
- body->valid |= S_ISDIR(inode->i_mode) ?
- OBD_MD_FLDIREA : OBD_MD_FLEASIZE;
-
- if (mea)
- body->valid |= OBD_MD_MEA;
-
- body->eadatasize = lmm_size;
- rc = 0;
- }
+ if (strncmp(obd->obd_name, MDD_OBD_NAME, strlen(MDD_OBD_NAME)))
+ RETURN(0);
- RETURN(rc);
-}
+ push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-int mds_pack_link(struct dentry *dentry, struct ptlrpc_request *req,
- struct mds_body *repbody, int reply_off)
-{
- struct inode *inode = dentry->d_inode;
- char *symname;
- int len, rc;
- ENTRY;
+ mds_lov_destroy_objids(obd);
- symname = lustre_msg_buf(req->rq_repmsg, reply_off + 1,0);
- LASSERT(symname != NULL);
- len = req->rq_repmsg->buflens[reply_off + 1];
-
- rc = inode->i_op->readlink(dentry, symname, len);
- if (rc < 0) {
- CERROR("readlink failed: %d\n", rc);
- } else if (rc != len - 1) {
- CERROR ("Unexpected readlink rc %d: expecting %d\n",
- rc, len - 1);
- rc = -EINVAL;
- } else {
- CDEBUG(D_INODE, "read symlink dest %s\n", symname);
- repbody->valid |= OBD_MD_LINKNAME;
- repbody->eadatasize = rc + 1;
- symname[rc] = 0; /* NULL terminate */
- rc = 0;
+ if (mds->mds_objects_dir != NULL) {
+ l_dput(mds->mds_objects_dir);
+ mds->mds_objects_dir = NULL;
}
+ dput(mds->mds_fid_de);
+ ll_vfs_dq_off(obd->u.obt.obt_sb, 0);
+ shrink_dcache_sb(mds->mds_obt.obt_sb);
+ fsfilt_put_ops(obd->obd_fsops);
+
+ pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
RETURN(rc);
}
-int mds_pack_xattr(struct dentry *dentry, struct ptlrpc_request *req,
- struct mds_body *repbody, int req_off, int reply_off)
+#if 0
+static int mds_cmd_health_check(struct obd_device *obd)
{
- struct inode *inode = dentry->d_inode;
- char *ea_name;
- void *value = NULL;
- int len, rc;
- ENTRY;
-
- ea_name = lustre_msg_string(req->rq_reqmsg, req_off + 1, 0);
- len = req->rq_repmsg->buflens[reply_off + 1];
- if (len != 0)
- value = lustre_msg_buf(req->rq_repmsg, reply_off + 1, len);
-
- rc = -EOPNOTSUPP;
-
- if (!strcmp(ea_name, XATTR_NAME_LUSTRE_ACL)) {
- struct rmtacl_upcall_desc desc;
-
- if (len != LUSTRE_ACL_SIZE_MAX || !value) {
- CERROR("no reply buffer prepared\n");
- RETURN(-EFAULT);
- }
-
- memset(&desc, 0, sizeof(desc));
- desc.get = 1;
- desc.cmd = lustre_msg_string(req->rq_reqmsg, req_off + 2, 0);
- desc.cmdlen = req->rq_reqmsg->buflens[req_off + 2];
- desc.res = (char *) value;
- desc.reslen = LUSTRE_ACL_SIZE_MAX;
-
- mds_do_remote_acl_upcall(&desc);
-
- if (desc.upcall_status)
- RETURN(desc.upcall_status);
-
- if (desc.reslen > LUSTRE_ACL_SIZE_MAX) {
- CERROR("downcall claim reslen %u\n", desc.reslen);
- RETURN(-EINVAL);
- }
- /* like remote setfacl, steal "flags" in mds_body as the
- * exececution status
- */
- repbody->flags = desc.status;
- repbody->valid |= OBD_MD_FLXATTR;
- repbody->eadatasize = desc.reslen;
-
- RETURN(0);
- }
-
- if (inode->i_op && inode->i_op->getxattr)
- rc = inode->i_op->getxattr(dentry, ea_name, value, len);
-
- if (rc < 0) {
- if (rc != -ENODATA && rc != -EOPNOTSUPP)
- CERROR("getxattr failed: %d", rc);
- } else {
- repbody->valid |= OBD_MD_FLXATTR;
- repbody->eadatasize = rc;
- rc = 0;
- }
-
- RETURN(rc);
-}
-
-int mds_pack_xattr_list(struct dentry *dentry, struct ptlrpc_request *req,
- struct mds_body *repbody, int reply_off)
-{
- struct inode *inode = dentry->d_inode;
- void *value = NULL;
- int len, rc;
- ENTRY;
-
- len = req->rq_repmsg->buflens[reply_off + 1];
- if (len != 0)
- value = lustre_msg_buf(req->rq_repmsg, reply_off + 1, len);
-
- rc = -EOPNOTSUPP;
- if (inode->i_op && inode->i_op->getxattr)
- rc = inode->i_op->listxattr(dentry, value, len);
-
- if (rc < 0) {
- CERROR("listxattr failed: %d", rc);
- } else {
- repbody->valid |= OBD_MD_FLXATTRLIST;
- repbody->eadatasize = rc;
- rc = 0;
- }
- RETURN(rc);
-}
-
-static
-int mds_pack_posix_acl(struct lustre_msg *repmsg, int *offset,
- struct mds_body *body, struct inode *inode)
-{
- struct dentry de = { .d_inode = inode };
- __u32 buflen, *sizep;
- void *buf;
- int size, pack_off = *offset;
- ENTRY;
-
- sizep = lustre_msg_buf(repmsg, pack_off++, 4);
- if (!sizep) {
- CERROR("can't locate returned acl size buf\n");
- RETURN(-EPROTO);
- }
-
- if (!inode->i_op->getxattr)
- RETURN(0);
-
- buflen = repmsg->buflens[pack_off];
- buf = lustre_msg_buf(repmsg, pack_off++, buflen);
- *offset = pack_off;
-
- size = inode->i_op->getxattr(&de, XATTR_NAME_ACL_ACCESS, buf, buflen);
- if (size == -ENODATA || size == -EOPNOTSUPP)
- RETURN(0);
- if (size < 0)
- RETURN(size);
- LASSERT(size);
- body->valid |= OBD_MD_FLACL;
-
- *sizep = cpu_to_le32(size);
- RETURN(0);
-}
-
-int mds_pack_remote_perm(struct ptlrpc_request *req, int *reply_off,
- struct mds_body *body, struct inode *inode)
-{
- struct lustre_sec_desc *lsd;
- struct mds_remote_perm *perm;
- int pack_off = *reply_off;
- __u32 lsd_perms;
-
- LASSERT(inode->i_op);
- LASSERT(inode->i_op->permission);
- LASSERT(req->rq_export->exp_mds_data.med_remote);
-
- perm = (struct mds_remote_perm *)
- lustre_msg_buf(req->rq_repmsg, pack_off++, sizeof(perm));
- if (!perm) {
- CERROR("no remote perm buf at offset %d\n", pack_off - 1);
- return -EINVAL;
- }
-
- memset(perm, 0, sizeof(*perm));
-
- /* obtain authenticated uid/gid and LSD permissions, which
- * might be different from current process context, from LSD
- */
- lsd = mds_get_lsd(current->uid);
- if (!lsd) {
- CWARN("can't LSD of uid %u\n", current->uid);
- RETURN(-EPERM);
- }
-
- perm->mrp_auth_uid = lsd->lsd_uid;
- perm->mrp_auth_gid = lsd->lsd_gid;
-
- lsd_perms = mds_lsd_get_perms(lsd, 1, 0, req->rq_peer.peer_id.nid);
- if (lsd_perms & LSD_PERM_SETUID)
- perm->mrp_allow_setuid = 1;
- if (lsd_perms & LSD_PERM_SETGID)
- perm->mrp_allow_setgid = 1;
-
- mds_put_lsd(lsd);
-
- /* permission bits of current user
- * XXX this is low efficient, could we do it in one blow?
- */
- if (inode->i_op->permission(inode, MAY_EXEC, NULL) == 0)
- perm->mrp_perm |= MAY_EXEC;
- if (inode->i_op->permission(inode, MAY_WRITE, NULL) == 0)
- perm->mrp_perm |= MAY_WRITE;
- if (inode->i_op->permission(inode, MAY_READ, NULL) == 0)
- perm->mrp_perm |= MAY_READ;
-
- body->valid |= (OBD_MD_FLACL | OBD_MD_FLRMTACL);
-
- *reply_off = pack_off;
-
- RETURN(0);
-}
-
-int mds_pack_acl(struct ptlrpc_request *req, int *reply_off,
- struct mds_body *body, struct inode *inode)
-{
- int rc;
-
- if (!req->rq_export->exp_mds_data.med_remote)
- rc = mds_pack_posix_acl(req->rq_repmsg, reply_off, body, inode);
- else
- rc = mds_pack_remote_perm(req, reply_off, body, inode);
-
- return rc;
-}
-
-static int mds_getattr_internal(struct obd_device *obd, struct dentry *dentry,
- struct ptlrpc_request *req, int req_off,
- struct mds_body *reqbody, int reply_off,
- struct mds_req_sec_desc *rsd)
-{
- struct mds_export_data *med = &req->rq_export->u.eu_mds_data;
- struct inode *inode = dentry->d_inode;
- struct mds_body *body;
- int rc = 0, offset = 0;
- ENTRY;
-
- if (inode == NULL && !(dentry->d_flags & DCACHE_CROSS_REF))
- RETURN(-ENOENT);
-
- body = lustre_msg_buf(req->rq_repmsg, reply_off, sizeof(*body));
- LASSERT(body != NULL); /* caller prepped reply */
-
- if (dentry->d_flags & DCACHE_CROSS_REF) {
- mds_pack_dentry2body(obd, body, dentry,
- (reqbody->valid & OBD_MD_FID) ? 1 : 0);
- CDEBUG(D_OTHER, "cross reference: "DLID4"\n",
- OLID4(&body->id1));
- RETURN(0);
- }
-
- mds_pack_inode2body(obd, body, inode,
- (reqbody->valid & OBD_MD_FID) ? 1 : 0);
-
- if ((S_ISREG(inode->i_mode) && (reqbody->valid & OBD_MD_FLEASIZE)) ||
- (S_ISDIR(inode->i_mode) && (reqbody->valid & OBD_MD_FLDIREA))) {
-
- /* guessing what kind og attribute do we need. */
- int is_mea = (S_ISDIR(inode->i_mode) &&
- (reqbody->valid & OBD_MD_MEA) != 0);
-
- rc = mds_pack_md(obd, req->rq_repmsg, reply_off + 1,
- body, inode, 1, is_mea);
-
- /* if we have LOV EA data, the OST holds size, atime, mtime. */
- if (!(body->valid & OBD_MD_FLEASIZE) &&
- !(body->valid & OBD_MD_FLDIREA))
- body->valid |= (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS |
- OBD_MD_FLATIME | OBD_MD_FLMTIME);
- } else if (S_ISLNK(inode->i_mode) &&
- (reqbody->valid & OBD_MD_LINKNAME) != 0) {
- rc = mds_pack_link(dentry, req, body, reply_off);
- } else if (reqbody->valid & OBD_MD_FLXATTR) {
- rc = mds_pack_xattr(dentry, req, body, req_off, reply_off);
- } else if (reqbody->valid & OBD_MD_FLXATTRLIST) {
- rc = mds_pack_xattr_list(dentry, req, body, reply_off);
- }
-
- offset = reply_off + ((reqbody->valid & OBD_MD_FLEASIZE) ? 2 : 1);
- if (reqbody->valid & OBD_MD_FLACL) {
- rc = mds_pack_acl(req, &offset, body, inode);
- }
-
- if (reqbody->valid & OBD_MD_FLKEY) {
- rc = mds_pack_gskey(obd, req->rq_repmsg, &offset,
- body, inode);
- }
-
- mds_pack_audit(obd, inode, body);
-
- if (reqbody->valid & OBD_MD_CAPA) {
- struct lustre_capa *req_capa;
-
- LASSERT(!(reqbody->valid & ~OBD_MD_CAPA));
- LASSERT(S_ISREG(inode->i_mode));
-
- req_capa = lustre_swab_reqbuf(req, req_off + 1,
- sizeof(*req_capa),
- lustre_swab_lustre_capa);
- if (req_capa == NULL) {
- CERROR("Can't unpack capa\n");
- RETURN(-EFAULT);
- }
-
- offset = reply_off + 1;
- rc = mds_pack_capa(obd, reqbody, req_capa, req->rq_repmsg,
- &offset, body);
- }
-
- if (rc == 0)
- mds_body_do_reverse_map(med, body);
-
- RETURN(rc);
-}
-
-static int mds_getattr_pack_msg_cf(struct ptlrpc_request *req,
- struct dentry *dentry,
- int offset)
-{
- int rc = 0, size[1] = {sizeof(struct mds_body)};
- ENTRY;
-
- if (OBD_FAIL_CHECK(OBD_FAIL_MDS_GETATTR_PACK)) {
- CERROR("failed MDS_GETATTR_PACK test\n");
- req->rq_status = -ENOMEM;
- RETURN(-ENOMEM);
- }
-
- rc = lustre_pack_reply(req, 1, size, NULL);
- if (rc) {
- CERROR("lustre_pack_reply failed: rc %d\n", rc);
- GOTO(out, req->rq_status = rc);
- }
-
- EXIT;
-out:
- return rc;
-}
-
-static int mds_getattr_pack_msg(struct ptlrpc_request *req, struct dentry *de,
- int offset)
-{
- struct inode *inode = de->d_inode;
- struct mds_obd *mds = mds_req2mds(req);
- struct mds_body *body;
- int rc = 0, size[4] = {sizeof(*body)}, bufcount = 1;
- ENTRY;
-
- body = lustre_msg_buf(req->rq_reqmsg, offset, sizeof(*body));
- LASSERT(body != NULL); /* checked by caller */
- LASSERT_REQSWABBED(req, offset); /* swabbed by caller */
-
- if ((S_ISREG(inode->i_mode) && (body->valid & OBD_MD_FLEASIZE)) ||
- (S_ISDIR(inode->i_mode) && (body->valid & OBD_MD_FLDIREA))) {
- int rc;
-
- down(&inode->i_sem);
- rc = fsfilt_get_md(req->rq_export->exp_obd, inode, NULL, 0,
- ((body->valid & OBD_MD_MEA) ? EA_MEA : EA_LOV));
- up(&inode->i_sem);
- if (rc < 0) {
- if (rc != -ENODATA && rc != -EOPNOTSUPP)
- CERROR("error getting inode %lu MD: rc = %d\n",
- inode->i_ino, rc);
- size[bufcount] = 0;
- } else if (rc > mds->mds_max_mdsize) {
- size[bufcount] = 0;
- CERROR("MD size %d larger than maximum possible %u\n",
- rc, mds->mds_max_mdsize);
- } else {
- size[bufcount] = rc;
- }
- bufcount++;
- } else if (S_ISLNK(inode->i_mode) && (body->valid & OBD_MD_LINKNAME)) {
- if (inode->i_size + 1 != body->eadatasize)
- CERROR("symlink size: %Lu, reply space: %d\n",
- inode->i_size + 1, body->eadatasize);
- size[bufcount] = min_t(int, inode->i_size+1, body->eadatasize);
- bufcount++;
- CDEBUG(D_INODE, "symlink size: %Lu, reply space: %d\n",
- inode->i_size + 1, body->eadatasize);
- } else if ((body->valid & OBD_MD_FLXATTR)) {
- char *ea_name = lustre_msg_string(req->rq_reqmsg,
- offset + 1, 0);
- rc = -EOPNOTSUPP;
-
- if (!strcmp(ea_name, XATTR_NAME_LUSTRE_ACL)) {
- size[bufcount] = LUSTRE_ACL_SIZE_MAX;
- } else {
- if (inode->i_op && inode->i_op->getxattr)
- rc = inode->i_op->getxattr(de, ea_name,
- NULL, 0);
-
- if (rc < 0) {
- if (rc != -ENODATA && rc != -EOPNOTSUPP)
- CERROR("error get inode %lu EA: %d\n",
- inode->i_ino, rc);
- size[bufcount] = 0;
- } else {
- size[bufcount] = min_t(int,
- body->eadatasize, rc);
- }
- }
- bufcount++;
- } else if (body->valid & OBD_MD_FLXATTRLIST) {
- rc = -EOPNOTSUPP;
- if (inode->i_op && inode->i_op->getxattr)
- rc = inode->i_op->listxattr(de, NULL, 0);
-
- if (rc < 0) {
- if (rc != -ENODATA && rc != -EOPNOTSUPP)
- CERROR("error getting inode %lu EA: rc = %d\n",
- inode->i_ino, rc);
- size[bufcount] = 0;
- } else {
- size[bufcount] = min_t(int, body->eadatasize, rc);
- }
- bufcount++;
- }
-
- /* may co-exist with OBD_MD_FLEASIZE */
- if (body->valid & OBD_MD_FLACL) {
- if (req->rq_export->exp_mds_data.med_remote) {
- size[bufcount++] = sizeof(struct mds_remote_perm);
- } else {
- size[bufcount++] = sizeof(int);
- size[bufcount++] = xattr_acl_size(LL_ACL_MAX_ENTRIES);
- }
- }
-
- if (body->valid & OBD_MD_FLKEY) {
- size[bufcount++] = sizeof(int);
- size[bufcount++] = sizeof(struct crypto_key);
- }
-
- if (body->valid & OBD_MD_CAPA)
- size[bufcount++] = sizeof(struct lustre_capa);
-
- if (OBD_FAIL_CHECK(OBD_FAIL_MDS_GETATTR_PACK)) {
- CERROR("failed MDS_GETATTR_PACK test\n");
- req->rq_status = -ENOMEM;
- GOTO(out, rc = -ENOMEM);
- }
-
- rc = lustre_pack_reply(req, bufcount, size, NULL);
- if (rc) {
- CERROR("out of memory\n");
- GOTO(out, req->rq_status = rc);
- }
-
- EXIT;
- out:
- return rc;
-}
-
-int mds_check_mds_num(struct obd_device *obd, struct inode *inode,
- char *name, int namelen)
-{
- struct mea *mea = NULL;
- int mea_size, rc = 0;
- ENTRY;
-
- rc = mds_md_get_attr(obd, inode, &mea, &mea_size);
- if (rc)
- RETURN(rc);
- if (mea != NULL && mea->mea_count) {
- /*
- * dir is already splitted, check if requested filename should
- * live at this MDS or at another one.
- */
- int i = mea_name2idx(mea, name, namelen - 1);
- if (mea->mea_master != id_group(&mea->mea_ids[i])) {
- CDEBUG(D_OTHER,
- "inapropriate MDS(%d) for %s. should be "
- "%lu(%d)\n", mea->mea_master, name,
- (unsigned long)id_group(&mea->mea_ids[i]), i);
- rc = -ERESTART;
- }
- }
-
- if (mea)
- OBD_FREE(mea, mea_size);
- RETURN(rc);
-}
-
-int mds_getattr_size(struct obd_device *obd, struct dentry *dentry,
- struct ptlrpc_request *req, struct mds_body *body)
-{
- struct inode *inode = dentry->d_inode;
- ENTRY;
-
- LASSERT(body != NULL);
-
- if (dentry->d_inode == NULL || !S_ISREG(inode->i_mode))
- RETURN(0);
-
- if (obd->obd_recovering) {
- CDEBUG(D_INODE, "size for "DLID4" is unknown yet (recovering)\n",
- OLID4(&body->id1));
- RETURN(0);
- }
-
- if (atomic_read(&inode->i_writecount)) {
- /* some one has opened the file for write.
- * mds doesn't know actual size */
- CDEBUG(D_INODE, "MDS doesn't know actual size for "DLID4"\n",
- OLID4(&body->id1));
- RETURN(0);
- }
- CDEBUG(D_INODE, "MDS returns "LPD64"/"LPD64" for"DLID4"\n",
- body->size, body->blocks, OLID4(&body->id1));
- body->valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
- RETURN(0);
-}
-
-static int mds_getattr_lock(struct ptlrpc_request *req, int offset,
- struct lustre_handle *child_lockh, int child_part)
-{
- struct obd_device *obd = req->rq_export->exp_obd;
- struct mds_obd *mds = &obd->u.mds;
- struct ldlm_reply *rep = NULL;
- struct lvfs_run_ctxt saved;
- struct mds_req_sec_desc *rsd;
- struct mds_body *body;
- struct dentry *dparent = NULL, *dchild = NULL;
- struct lvfs_ucred uc = {NULL, NULL,};
- struct lustre_handle parent_lockh[2] = {{0}, {0}};
- unsigned int namesize;
- int rc = 0, cleanup_phase = 0, resent_req = 0, update_mode, reply_offset;
- char *name = NULL;
- ENTRY;
-
- LASSERT(!strcmp(obd->obd_type->typ_name, OBD_MDS_DEVICENAME));
- MD_COUNTER_INCREMENT(obd, getattr_lock);
-
- rsd = lustre_swab_mds_secdesc(req, MDS_REQ_SECDESC_OFF);
- if (!rsd) {
- CERROR("Can't unpack security desc\n");
- RETURN(-EFAULT);
- }
-
- /* swab now, before anyone looks inside the request. */
- body = lustre_swab_reqbuf(req, offset, sizeof(*body),
- lustre_swab_mds_body);
- if (body == NULL) {
- CERROR("Can't swab mds_body\n");
- GOTO(cleanup, rc = -EFAULT);
- }
-
- LASSERT_REQSWAB(req, offset + 1);
- name = lustre_msg_string(req->rq_reqmsg, offset + 1, 0);
- if (name == NULL) {
- CERROR("Can't unpack name\n");
- GOTO(cleanup, rc = -EFAULT);
- }
- namesize = req->rq_reqmsg->buflens[offset + 1];
-
- /* namesize less than 2 means we have empty name, probably came from
- revalidate by cfid, so no point in having name to be set */
- if (namesize <= 1)
- name = NULL;
-
- LASSERT (offset == 1 || offset == 3);
- if (offset == 3) {
- rep = lustre_msg_buf(req->rq_repmsg, 0, sizeof (*rep));
- reply_offset = 1;
- } else {
- reply_offset = 0;
- }
-
- rc = mds_init_ucred(&uc, req, rsd);
- if (rc) {
- if (child_lockh->cookie == 0)
- mds_audit_auth(req, &uc, AUDIT_STAT, &body->id1,
- name, namesize);
- GOTO(cleanup, rc);
- }
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, &uc);
- cleanup_phase = 1; /* kernel context */
- intent_set_disposition(rep, DISP_LOOKUP_EXECD);
-
- LASSERT(namesize > 0);
- if (child_lockh->cookie != 0) {
- LASSERT(lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT);
- resent_req = 1;
- }
-#if HAVE_LOOKUP_RAW
- if (body->valid == OBD_MD_FLID) {
- struct mds_body *mds_reply;
- int size = sizeof(*mds_reply);
- struct inode *dir;
- ino_t inum;
-
- dparent = mds_id2dentry(obd, &body->id1, NULL);
- if (IS_ERR(dparent)) {
- rc = PTR_ERR(dparent);
- GOTO(cleanup, rc);
- }
- /*
- * the user requested ONLY the inode number, so do a raw lookup.
- */
- rc = lustre_pack_reply(req, 1, &size, NULL);
- if (rc) {
- CERROR("out of memory\n");
- l_dput(dparent);
- GOTO(cleanup, rc);
- }
- dir = dparent->d_inode;
- LASSERT(dir->i_op->lookup_raw != NULL);
- rc = dir->i_op->lookup_raw(dir, name, namesize - 1, &inum);
- l_dput(dparent);
- mds_reply = lustre_msg_buf(req->rq_repmsg, 0,
- sizeof(*mds_reply));
-
- id_ino(&mds_reply->id1) = inum;
- mds_reply->valid = OBD_MD_FLID;
- GOTO(cleanup, rc);
- }
-#endif
- if (resent_req == 0) {
- LASSERT(id_fid(&body->id1) != 0);
- if (name) {
- rc = mds_get_parent_child_locked(obd, mds, &body->id1,
- parent_lockh, &dparent,
- LCK_PR,
- MDS_INODELOCK_UPDATE,
- &update_mode,
- name, namesize,
- child_lockh, &dchild,
- LCK_PR, child_part);
- if (rc)
- GOTO(cleanup, rc);
-
- cleanup_phase = 2; /* dchild, dparent, locks */
-
- /*
- * let's make sure this name should leave on this mds
- * node.
- */
- rc = mds_check_mds_num(obd, dparent->d_inode, name, namesize);
- if (rc)
- GOTO(cleanup, rc);
- } else {
- /* we have no dentry here, drop LOOKUP bit */
- /* FIXME: we need MDS_INODELOCK_LOOKUP or not. */
- child_part &= ~MDS_INODELOCK_LOOKUP;
- CDEBUG(D_OTHER, "%s: retrieve attrs for "DLID4"\n",
- obd->obd_name, OLID4(&body->id1));
-
- dchild = mds_id2locked_dentry(obd, &body->id1, NULL,
- LCK_PR, parent_lockh,
- &update_mode, NULL, 0,
- MDS_INODELOCK_UPDATE);
- if (IS_ERR(dchild)) {
- CERROR("can't find inode with id "DLID4", err = %d\n",
- OLID4(&body->id1), (int)PTR_ERR(dchild));
- GOTO(cleanup, rc = PTR_ERR(dchild));
- }
- memcpy(child_lockh, parent_lockh, sizeof(parent_lockh[0]));
- }
- } else {
- struct ldlm_lock *granted_lock;
-
- DEBUG_REQ(D_DLMTRACE, req, "resent, not enqueuing new locks");
- granted_lock = ldlm_handle2lock(child_lockh);
-
- LASSERTF(granted_lock != NULL, LPU64"/%lu lockh "LPX64"\n",
- id_fid(&body->id1), (unsigned long)id_group(&body->id1),
- child_lockh->cookie);
-
- if (name) {
- /* usual named request */
- dparent = mds_id2dentry(obd, &body->id1, NULL);
- LASSERT(!IS_ERR(dparent));
- dchild = ll_lookup_one_len(name, dparent, namesize - 1);
- LASSERT(!IS_ERR(dchild));
- } else {
- /* client wants to get attr. by id */
- dchild = mds_id2dentry(obd, &body->id1, NULL);
- LASSERT(!IS_ERR(dchild));
- }
- LDLM_LOCK_PUT(granted_lock);
- }
-
- cleanup_phase = 2; /* dchild, dparent, locks */
-
- if (!DENTRY_VALID(dchild)) {
- intent_set_disposition(rep, DISP_LOOKUP_NEG);
- /*
- * in the intent case, the policy clears this error: the
- * disposition is enough.
- */
- rc = -ENOENT;
- GOTO(cleanup, rc);
- } else {
- intent_set_disposition(rep, DISP_LOOKUP_POS);
- }
-
- if (req->rq_repmsg == NULL) {
- if (dchild->d_flags & DCACHE_CROSS_REF)
- rc = mds_getattr_pack_msg_cf(req, dchild, offset);
- else
- rc = mds_getattr_pack_msg(req, dchild, offset);
- if (rc != 0) {
- CERROR ("mds_getattr_pack_msg: %d\n", rc);
- GOTO (cleanup, rc);
- }
- }
-
- rc = mds_getattr_internal(obd, dchild, req, offset, body,
- reply_offset, rsd);
- if (rc)
- GOTO(cleanup, rc); /* returns the lock to the client */
-
- /* probably MDS knows actual size? */
- body = lustre_msg_buf(req->rq_repmsg, reply_offset, sizeof(*body));
- LASSERT(body != NULL);
- mds_getattr_size(obd, dchild, req, body);
-
- GOTO(cleanup, rc);
-
- cleanup:
- switch (cleanup_phase) {
- case 2:
- if (resent_req == 0) {
- if (rc && DENTRY_VALID(dchild))
- ldlm_lock_decref(child_lockh, LCK_PR);
- if (name)
- ldlm_lock_decref(parent_lockh, LCK_PR);
-#ifdef S_PDIROPS
- if (parent_lockh[1].cookie != 0)
- ldlm_lock_decref(parent_lockh + 1, update_mode);
-#endif
- if (dparent)
- l_dput(dparent);
-
- /* audit stuff for getattr */
- if (dchild->d_inode)
- mds_audit_stat(req, &body->id1, dchild, rc);
- }
- l_dput(dchild);
- case 1:
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, &uc);
- default:
- mds_exit_ucred(&uc);
- }
- return rc;
-}
-
-static int mds_getattr(struct ptlrpc_request *req, int offset)
-{
- struct obd_device *obd = req->rq_export->exp_obd;
- struct lvfs_run_ctxt saved;
- struct dentry *de;
- struct mds_req_sec_desc *rsd;
- struct mds_body *body;
- struct lvfs_ucred uc = {NULL, NULL,};
- int rc = 0;
- ENTRY;
-
- MD_COUNTER_INCREMENT(obd, getattr);
-
- rsd = lustre_swab_mds_secdesc(req, MDS_REQ_SECDESC_OFF);
- if (!rsd) {
- CERROR("Can't unpack security desc\n");
- RETURN(-EFAULT);
- }
-
- body = lustre_swab_reqbuf(req, offset, sizeof(*body),
- lustre_swab_mds_body);
- if (body == NULL) {
- CERROR ("Can't unpack body\n");
- RETURN (-EFAULT);
- }
-
- rc = mds_init_ucred(&uc, req, rsd);
- if (rc) {
- mds_exit_ucred(&uc);
- RETURN(rc);
- }
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, &uc);
- de = mds_id2dentry(obd, &body->id1, NULL);
- if (IS_ERR(de)) {
- rc = req->rq_status = PTR_ERR(de);
- GOTO(out_pop, rc);
- }
-
- rc = mds_getattr_pack_msg(req, de, offset);
- if (rc != 0) {
- CERROR("mds_getattr_pack_msg: %d\n", rc);
- GOTO(out_pop, rc);
- }
-
- req->rq_status = mds_getattr_internal(obd, de, req, offset, body,
- 0, rsd);
- l_dput(de);
-
- EXIT;
-out_pop:
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, &uc);
- mds_exit_ucred(&uc);
- return rc;
-}
-
-static int mds_access_check(struct ptlrpc_request *req, int offset)
-{
- struct obd_device *obd = req->rq_export->exp_obd;
- struct lvfs_run_ctxt saved;
- struct dentry *de;
- struct mds_req_sec_desc *rsd;
- struct mds_body *body;
- struct lvfs_ucred uc;
- int rep_size[2] = {sizeof(*body),
- sizeof(struct mds_remote_perm)};
- int rc = 0, rep_offset;
- ENTRY;
-
- if (!req->rq_export->exp_mds_data.med_remote) {
- CERROR("from local client "LPU64"\n", req->rq_peer.peer_id.nid);
- RETURN(-EINVAL);
- }
-
- rsd = lustre_swab_mds_secdesc(req, MDS_REQ_SECDESC_OFF);
- if (!rsd) {
- CERROR("Can't unpack security desc\n");
- RETURN(-EFAULT);
- }
-
- body = lustre_swab_reqbuf(req, offset, sizeof(*body),
- lustre_swab_mds_body);
- if (body == NULL) {
- CERROR ("Can't unpack body\n");
- RETURN (-EFAULT);
- }
-
- MD_COUNTER_INCREMENT(obd, access_check);
-
- rc = mds_init_ucred(&uc, req, rsd);
- if (rc) {
- CERROR("init ucred error: %d\n", rc);
- RETURN(rc);
- }
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, &uc);
-
- de = mds_id2dentry(obd, &body->id1, NULL);
- if (IS_ERR(de)) {
- CERROR("grab ino "LPU64": err %ld\n",
- body->id1.li_stc.u.e3s.l3s_ino, PTR_ERR(de));
- GOTO(out_pop, rc = PTR_ERR(de));
- }
-
- rc = lustre_pack_reply(req, 2, rep_size, NULL);
- if (rc) {
- CERROR("pack reply error: %d\n", rc);
- GOTO(out_dput, rc = -EINVAL);
- }
-
- body = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*body));
- LASSERT(body);
-
- rep_offset = 1;
- rc = mds_pack_remote_perm(req, &rep_offset, body, de->d_inode);
-
- EXIT;
-
-out_dput:
- l_dput(de);
-out_pop:
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, &uc);
- mds_exit_ucred(&uc);
- return rc;
-}
-
-static int mds_obd_statfs(struct obd_device *obd, struct obd_statfs *osfs,
- unsigned long max_age)
-{
- int rc;
- ENTRY;
-
- spin_lock(&obd->obd_osfs_lock);
- rc = fsfilt_statfs(obd, obd->u.mds.mds_sb, max_age);
- if (rc == 0)
- memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
- spin_unlock(&obd->obd_osfs_lock);
-
- RETURN(rc);
-}
-
-static int mds_statfs(struct ptlrpc_request *req)
-{
- struct obd_device *obd = req->rq_export->exp_obd;
- int rc, size = sizeof(struct obd_statfs);
- ENTRY;
-
- /* This will trigger a watchdog timeout */
- OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_STATFS_LCW_SLEEP,
- (MDS_SERVICE_WATCHDOG_TIMEOUT / 1000) + 1);
-
- rc = lustre_pack_reply(req, 1, &size, NULL);
- if (rc || OBD_FAIL_CHECK(OBD_FAIL_MDS_STATFS_PACK)) {
- CERROR("mds: statfs lustre_pack_reply failed: rc = %d\n", rc);
- GOTO(out, rc);
- }
-
- OBD_COUNTER_INCREMENT(obd, statfs);
-
- /* We call this so that we can cache a bit - 1 jiffie worth */
- rc = mds_obd_statfs(obd, lustre_msg_buf(req->rq_repmsg, 0, size),
- jiffies - HZ);
- if (rc) {
- CERROR("mds_obd_statfs failed: rc %d\n", rc);
- GOTO(out, rc);
- }
-
- EXIT;
-out:
- req->rq_status = rc;
- return rc;
-}
-
-static int mds_sync(struct ptlrpc_request *req, int offset)
-{
- struct obd_device *obd = req->rq_export->exp_obd;
- struct mds_obd *mds = &obd->u.mds;
- struct mds_body *body;
- int rc, size = sizeof(*body);
- ENTRY;
-
- body = lustre_swab_reqbuf(req, offset, sizeof(*body),
- lustre_swab_mds_body);
- if (body == NULL)
- GOTO(out, rc = -EPROTO);
-
- rc = lustre_pack_reply(req, 1, &size, NULL);
- if (rc || OBD_FAIL_CHECK(OBD_FAIL_MDS_SYNC_PACK)) {
- CERROR("fsync lustre_pack_reply failed: rc = %d\n", rc);
- GOTO(out, rc);
- }
-
- if (id_ino(&body->id1) == 0) {
- /* an id of zero is taken to mean "sync whole filesystem" */
- rc = fsfilt_sync(obd, mds->mds_sb);
- if (rc)
- GOTO(out, rc);
- } else {
- /* just any file to grab fsync method - "file" arg unused */
- struct file *file = mds->mds_rcvd_filp;
- struct mds_body *rep_body;
- struct dentry *de;
-
- de = mds_id2dentry(obd, &body->id1, NULL);
- if (IS_ERR(de))
- GOTO(out, rc = PTR_ERR(de));
-
- rc = file->f_op->fsync(NULL, de, 1);
- if (rc)
- GOTO(out, rc);
-
- rep_body = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*rep_body));
- mds_pack_inode2body(obd, rep_body, de->d_inode,
- (body->valid & OBD_MD_FID) ? 1 : 0);
- l_dput(de);
- }
-
- EXIT;
-out:
- req->rq_status = rc;
- return rc;
-}
-
-/* mds_readpage does not take a DLM lock on the inode, because the client must
- * already have a PR lock.
- *
- * If we were to take another one here, a deadlock will result, if another
- * thread is already waiting for a PW lock. */
-static int mds_readpage(struct ptlrpc_request *req, int offset)
-{
- struct obd_device *obd = req->rq_export->exp_obd;
- struct vfsmount *mnt;
- struct dentry *de;
- struct file *file;
- struct mds_req_sec_desc *rsd;
- struct mds_body *body, *repbody;
- struct lvfs_run_ctxt saved;
- int rc, size = sizeof(*repbody);
- struct lvfs_ucred uc = {NULL, NULL,};
- ENTRY;
-
- rc = lustre_pack_reply(req, 1, &size, NULL);
- if (rc || OBD_FAIL_CHECK(OBD_FAIL_MDS_READPAGE_PACK)) {
- CERROR("mds: out of memory\n");
- GOTO(out, rc = -ENOMEM);
- }
-
- rsd = lustre_swab_mds_secdesc(req, MDS_REQ_SECDESC_OFF);
- if (!rsd) {
- CERROR("Can't unpack security desc\n");
- GOTO (out, rc = -EFAULT);
- }
-
- body = lustre_swab_reqbuf(req, offset, sizeof(*body),
- lustre_swab_mds_body);
- if (body == NULL) {
- CERROR("Can't unpack body\n");
- GOTO (out, rc = -EFAULT);
- }
-
- rc = mds_init_ucred(&uc, req, rsd);
- if (rc) {
- mds_audit_auth(req, &uc, AUDIT_READDIR, &body->id1,
- NULL, 0);
- GOTO(out, rc);
- }
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, &uc);
- de = mds_id2dentry(obd, &body->id1, &mnt);
- if (IS_ERR(de))
- GOTO(out_pop, rc = PTR_ERR(de));
-
- CDEBUG(D_INODE, "ino %lu\n", de->d_inode->i_ino);
-
- file = dentry_open(de, mnt, O_RDONLY | O_LARGEFILE);
- /* note: in case of an error, dentry_open puts dentry */
- if (IS_ERR(file))
- GOTO(out_pop, rc = PTR_ERR(file));
-
- /* body->size is actually the offset -eeb */
- if ((body->size & (de->d_inode->i_blksize - 1)) != 0) {
- CERROR("offset "LPU64" not on a block boundary of %lu\n",
- body->size, de->d_inode->i_blksize);
- GOTO(out_file, rc = -EFAULT);
- }
-
- /* body->nlink is actually the #bytes to read -eeb */
- if (body->nlink & (de->d_inode->i_blksize - 1)) {
- CERROR("size %u is not multiple of blocksize %lu\n",
- body->nlink, de->d_inode->i_blksize);
- GOTO(out_file, rc = -EFAULT);
- }
-
- repbody = lustre_msg_buf(req->rq_repmsg, 0, sizeof (*repbody));
- repbody->size = file->f_dentry->d_inode->i_size;
- repbody->valid = OBD_MD_FLSIZE;
-
- /* to make this asynchronous make sure that the handling function
- doesn't send a reply when this function completes. Instead a
- callback function would send the reply */
- /* body->size is actually the offset -eeb */
- rc = mds_sendpage(req, file, body->size, body->nlink);
-
- EXIT;
-out_file:
- filp_close(file, 0);
-out_pop:
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, &uc);
-out:
- mds_exit_ucred(&uc);
- req->rq_status = rc;
- return 0;
-}
-
-int mds_read_md(struct obd_device *obd, struct lustre_id *id,
- char **data, int *datalen)
-{
- struct dentry *dentry;
- struct mds_obd *mds = &obd->u.mds;
- int rc = 0, mea = 0;
- char *ea;
- ENTRY;
-
- LASSERT(id);
- LASSERT(obd);
-
- dentry = mds_id2dentry(obd, id, NULL);
- if (IS_ERR(dentry))
- GOTO(out, rc = PTR_ERR(dentry));
-
- if (!dentry->d_inode) {
- CERROR("Can't find object "DLID4".\n",
- OLID4(id));
- GOTO(out_dentry, rc = -EINVAL);
- }
- if (S_ISDIR(dentry->d_inode->i_mode)) {
- *datalen = obd_packmd(mds->mds_md_exp, NULL, NULL);
- mea = 1;
- } else {
- *datalen = obd_packmd(mds->mds_dt_exp, NULL, NULL);
- mea = 0;
- }
- OBD_ALLOC(ea, *datalen);
- if (!ea) {
- *datalen = 0;
- GOTO(out_dentry, rc = PTR_ERR(dentry));
- }
- *data = ea;
- down(&dentry->d_inode->i_sem);
- rc = fsfilt_get_md(obd, dentry->d_inode, *data, *datalen,
- (mea ? EA_MEA : EA_LOV));
- up(&dentry->d_inode->i_sem);
-
- if (rc < 0)
- CERROR("Error %d reading eadata for ino %lu\n",
- rc, dentry->d_inode->i_ino);
-out_dentry:
- l_dput(dentry);
-out:
- RETURN(rc);
-}
-EXPORT_SYMBOL(mds_read_md);
-
-int mds_reint(struct ptlrpc_request *req, int offset,
- struct lustre_handle *lockh)
-{
- struct mds_update_record *rec;
- struct mds_req_sec_desc *rsd;
- int rc;
- ENTRY;
-
- OBD_ALLOC(rec, sizeof(*rec));
- if (rec == NULL)
- RETURN(-ENOMEM);
-
- rsd = lustre_swab_mds_secdesc(req, MDS_REQ_SECDESC_OFF);
- if (!rsd) {
- CERROR("Can't unpack security desc\n");
- GOTO(out, rc = -EFAULT);
- }
-
- rc = mds_update_unpack(req, offset, rec);
- if (rc || OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_UNPACK)) {
- CERROR("invalid record\n");
- GOTO(out, req->rq_status = -EINVAL);
- }
-
- rc = mds_init_ucred(&rec->ur_uc, req, rsd);
- if (rc) {
- audit_op code = AUDIT_NONE;
- char * au_name = NULL;
- int au_len = 0;
- switch (rec->ur_opcode) {
- case REINT_SETATTR:
- code = AUDIT_SETATTR;
- break;
- case REINT_CREATE:
- code = AUDIT_CREATE;
- au_name = rec->ur_name;
- au_len = rec->ur_namelen;
- break;
- case REINT_LINK:
- code = AUDIT_LINK;
- break;
- case REINT_UNLINK:
- code = AUDIT_UNLINK;
- break;
- case REINT_RENAME:
- code = AUDIT_RENAME;
- break;
- case REINT_OPEN:
- au_name = rec->ur_name;
- au_len = rec->ur_namelen;
- code = AUDIT_OPEN;
- break;
- default:
- CERROR("Wrong opcode in reint\n");
- LBUG();
- }
-
- mds_audit_auth(req, &rec->ur_uc, code, rec->ur_id1,
- au_name, au_len);
- GOTO(out, rc);
- }
-
- /* rc will be used to interrupt a for loop over multiple records */
- rc = mds_reint_rec(rec, offset, req, lockh);
-
- /* audit stuff for OPEN */
- if (offset == 3 && rec->ur_opcode == REINT_OPEN)
- mds_audit_open(req, rec, rc);
-
- out:
- mds_exit_ucred(&rec->ur_uc);
- OBD_FREE(rec, sizeof(*rec));
- RETURN(rc);
-}
-
-static int mds_filter_recovery_request(struct ptlrpc_request *req,
- struct obd_device *obd, int *process)
-{
- switch (req->rq_reqmsg->opc) {
- case MDS_CONNECT: /* This will never get here, but for completeness. */
- case OST_CONNECT: /* This will never get here, but for completeness. */
- case MDS_DISCONNECT:
- case OST_DISCONNECT:
- *process = 1;
- RETURN(0);
-
- case MDS_CLOSE:
- case MDS_SYNC: /* used in unmounting */
- case OBD_PING:
- case MDS_REINT:
- case LDLM_ENQUEUE:
- case OST_CREATE:
- *process = target_queue_recovery_request(req, obd);
- RETURN(0);
-
- default:
- DEBUG_REQ(D_ERROR, req, "not permitted during recovery");
- *process = 0;
- /* XXX what should we set rq_status to here? */
- req->rq_status = -EAGAIN;
- RETURN(ptlrpc_error(req));
- }
-}
-
-static char *reint_names[] = {
- [REINT_SETATTR] "setattr",
- [REINT_CREATE] "create",
- [REINT_LINK] "link",
- [REINT_UNLINK] "unlink",
- [REINT_RENAME] "rename",
- [REINT_OPEN] "open",
-};
-
-#define FILTER_VALID_FLAGS (OBD_MD_FLTYPE | OBD_MD_FLMODE | OBD_MD_FLGENER | \
- OBD_MD_FLSIZE | OBD_MD_FLBLOCKS | OBD_MD_FLBLKSZ| \
- OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME| \
- OBD_MD_FLID)
-
-static void reconstruct_create(struct ptlrpc_request *req)
-{
- struct mds_export_data *med = &req->rq_export->exp_mds_data;
- struct mds_client_data *mcd = med->med_mcd;
- struct dentry *dentry;
- struct ost_body *body;
- struct lustre_id id;
- int rc;
- ENTRY;
-
- /* copy rc, transno and disp; steal locks */
- mds_req_from_mcd(req, mcd);
- if (req->rq_status) {
- EXIT;
- return;
- }
-
- id_gen(&id) = 0;
- id_group(&id) = 0;
-
- id_ino(&id) = mcd->mcd_last_data;
- LASSERT(id_ino(&id) != 0);
-
- dentry = mds_id2dentry(req2obd(req), &id, NULL);
- if (IS_ERR(dentry)) {
- CERROR("can't find inode "LPU64"\n", id_ino(&id));
- req->rq_status = PTR_ERR(dentry);
- EXIT;
- return;
- }
-
- CWARN("reconstruct reply for x"LPU64" (remote ino) "LPU64" -> %lu/%u\n",
- req->rq_xid, id_ino(&id), dentry->d_inode->i_ino,
- dentry->d_inode->i_generation);
-
- body = lustre_msg_buf(req->rq_repmsg, 0, sizeof (*body));
- obdo_from_inode(&body->oa, dentry->d_inode, FILTER_VALID_FLAGS);
- body->oa.o_id = dentry->d_inode->i_ino;
- body->oa.o_generation = dentry->d_inode->i_generation;
- body->oa.o_valid |= OBD_MD_FLID | OBD_MD_FLGENER;
-
- down(&dentry->d_inode->i_sem);
- rc = mds_read_inode_sid(req2obd(req), dentry->d_inode, &id);
- up(&dentry->d_inode->i_sem);
- if (rc) {
- CERROR("Can't read inode self id, inode %lu, "
- "rc %d\n", dentry->d_inode->i_ino, rc);
- id_fid(&id) = 0;
- }
-
- body->oa.o_fid = id_fid(&id);
- body->oa.o_mds = id_group(&id);
- l_dput(dentry);
-
- EXIT;
-}
-
-static int mds_inode_init_acl(struct obd_device *obd, void *handle,
- struct dentry *de, void *xattr, int xattr_size)
-{
- struct inode *inode = de->d_inode;
- struct posix_acl *acl;
- mode_t mode;
- int rc = 0;
-
- LASSERT(handle);
- LASSERT(inode);
- LASSERT(xattr);
- LASSERT(xattr_size > 0);
-
- if (!inode->i_op->getxattr || !inode->i_op->setxattr) {
- CERROR("backend fs dosen't support xattr\n");
- return -EOPNOTSUPP;
- }
-
- /* set default acl */
- if (S_ISDIR(inode->i_mode)) {
- rc = inode->i_op->setxattr(de, XATTR_NAME_ACL_DEFAULT,
- xattr, xattr_size, 0);
- if (rc) {
- CERROR("set default acl err: %d\n", rc);
- return rc;
- }
- }
-
- /* set access acl */
- acl = posix_acl_from_xattr(xattr, xattr_size);
- if (acl == NULL || IS_ERR(acl)) {
- CERROR("insane attr data\n");
- return PTR_ERR(acl);
- }
-
- if (posix_acl_valid(acl)) {
- CERROR("default acl not valid: %d\n", rc);
- rc = -EFAULT;
- goto out;
- }
-
- mode = inode->i_mode;
- rc = posix_acl_create_masq(acl, &mode);
- if (rc < 0) {
- CERROR("create masq err %d\n", rc);
- goto out;
- }
-
- if (inode->i_mode != mode) {
- struct iattr iattr = { .ia_valid = ATTR_MODE,
- .ia_mode = mode };
- int rc2;
-
- rc2 = fsfilt_setattr(obd, de, handle, &iattr, 0);
- if (rc2) {
- CERROR("setattr mode err: %d\n", rc2);
- rc = rc2;
- goto out;
- }
- }
-
- if (rc > 0) {
- /* we didn't change acl except mode bits of some
- * entries, so should be fit into original size.
- */
- rc = posix_acl_to_xattr(acl, xattr, xattr_size);
- LASSERT(rc > 0);
-
- rc = inode->i_op->setxattr(de, XATTR_NAME_ACL_ACCESS,
- xattr, xattr_size, 0);
- if (rc)
- CERROR("set access acl err: %d\n", rc);
- }
-out:
- posix_acl_release(acl);
- return rc;
-}
-
-static int mdt_obj_create(struct ptlrpc_request *req)
-{
- struct obd_device *obd = req->rq_export->exp_obd;
- struct mds_obd *mds = &obd->u.mds;
- struct ost_body *body, *repbody;
- void *acl = NULL;
- int acl_size;
- char idname[LL_ID_NAMELEN];
- int size = sizeof(*repbody);
- struct inode *parent_inode;
- struct lvfs_run_ctxt saved;
- int rc, cleanup_phase = 0;
- struct dentry *new = NULL;
- struct dentry_params dp;
- int mealen, flags = 0;
- struct lvfs_ucred uc;
- struct lustre_id id;
- struct mea *mea;
- void *handle = NULL;
- unsigned long cr_inum = 0;
- __u64 fid = 0;
- ENTRY;
-
- DEBUG_REQ(D_HA, req, "create remote object");
- parent_inode = mds->mds_unnamed_dir->d_inode;
-
- body = lustre_swab_reqbuf(req, 0, sizeof(*body),
- lustre_swab_ost_body);
- if (body == NULL)
- RETURN(-EFAULT);
-
- /* acl data is packed transparently, no swab here */
- LASSERT(req->rq_reqmsg->bufcount >= 2);
- acl_size = req->rq_reqmsg->buflens[1];
- if (acl_size) {
- acl = lustre_msg_buf(req->rq_reqmsg, 1, acl_size);
- if (!acl) {
- CERROR("No default acl buf?\n");
- RETURN(-EFAULT);
- }
- }
-
- rc = lustre_pack_reply(req, 1, &size, NULL);
- if (rc)
- RETURN(rc);
-
- MDS_CHECK_RESENT(req, reconstruct_create(req));
-
- uc.luc_lsd = NULL;
- uc.luc_ginfo = NULL;
- uc.luc_uid = body->oa.o_uid;
- uc.luc_gid = body->oa.o_gid;
- uc.luc_fsuid = body->oa.o_uid;
- uc.luc_fsgid = body->oa.o_gid;
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, &uc);
- repbody = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*repbody));
-
- /* in REPLAY case inum should be given (client or other MDS fills it) */
- if (body->oa.o_id && ((body->oa.o_flags & OBD_FL_RECREATE_OBJS) ||
- (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY))) {
- /*
- * this is re-create request from MDS holding directory name.
- * we have to lookup given ino/gen first. if it exists (good
- * case) then there is nothing to do. if it does not then we
- * have to recreate it.
- */
- id_ino(&id) = body->oa.o_id;
- id_gen(&id) = body->oa.o_generation;
-
- new = mds_id2dentry(obd, &id, NULL);
- if (!IS_ERR(new) && new->d_inode) {
- struct lustre_id sid;
-
- CDEBUG(D_OTHER, "mkdir repairing %lu/%lu\n",
- (unsigned long)id_ino(&id),
- (unsigned long)id_gen(&id));
-
- obdo_from_inode(&repbody->oa, new->d_inode,
- FILTER_VALID_FLAGS);
-
- repbody->oa.o_id = new->d_inode->i_ino;
- repbody->oa.o_generation = new->d_inode->i_generation;
- repbody->oa.o_valid |= OBD_MD_FLID | OBD_MD_FLGENER;
- cleanup_phase = 1;
-
- down(&new->d_inode->i_sem);
- rc = mds_read_inode_sid(obd, new->d_inode, &sid);
- up(&new->d_inode->i_sem);
- if (rc) {
- CERROR("Can't read inode self id "
- "inode %lu, rc %d.\n",
- new->d_inode->i_ino, rc);
- GOTO(cleanup, rc);
- }
-
- repbody->oa.o_fid = id_fid(&sid);
- repbody->oa.o_mds = id_group(&sid);
- LASSERT(id_fid(&sid) != 0);
-
- /*
- * here we could use fid passed in body->oa.o_fid and
- * thus avoid mds_read_inode_sid().
- */
- cr_inum = new->d_inode->i_ino;
- GOTO(cleanup, rc = 0);
- }
- }
-
- down(&parent_inode->i_sem);
- handle = fsfilt_start(obd, parent_inode, FSFILT_OP_MKDIR, NULL);
- if (IS_ERR(handle)) {
- up(&parent_inode->i_sem);
- CERROR("fsfilt_start() failed, rc = %d\n",
- (int)PTR_ERR(handle));
- GOTO(cleanup, rc = PTR_ERR(handle));
- }
- cleanup_phase = 1; /* transaction */
-
-repeat:
- rc = sprintf(idname, "%u.%u", ll_insecure_random_int(), current->pid);
- new = lookup_one_len(idname, mds->mds_unnamed_dir, rc);
- if (IS_ERR(new)) {
- CERROR("%s: can't lookup new inode (%s) for mkdir: %d\n",
- obd->obd_name, idname, (int) PTR_ERR(new));
- fsfilt_commit(obd, mds->mds_sb, new->d_inode, handle, 0);
- up(&parent_inode->i_sem);
- RETURN(PTR_ERR(new));
- } else if (new->d_inode) {
- CERROR("%s: name exists. repeat\n", obd->obd_name);
- goto repeat;
- }
- if ((body->oa.o_flags & OBD_FL_RECREATE_OBJS) ||
- lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
- fid = body->oa.o_fid;
- } else {
- fid = mds_alloc_fid(obd);
- }
- new->d_fsdata = (void *)&dp;
- dp.p_inum = 0;
- dp.p_ptr = req;
-
- dp.p_fid = fid;
- dp.p_group = mds->mds_num;
-
- if ((lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) ||
- (body->oa.o_flags & OBD_FL_RECREATE_OBJS)) {
- LASSERT(body->oa.o_id != 0);
- dp.p_inum = body->oa.o_id;
- DEBUG_REQ(D_HA, req, "replay create obj %lu/%lu",
- (unsigned long)body->oa.o_id,
- (unsigned long)body->oa.o_generation);
- }
-
- rc = vfs_mkdir(parent_inode, new, body->oa.o_mode);
- if (rc == 0) {
- if (acl) {
- rc = mds_inode_init_acl(obd, handle, new,
- acl, acl_size);
- if (rc) {
- up(&parent_inode->i_sem);
- GOTO(cleanup, rc);
- }
- }
- if ((body->oa.o_flags & OBD_FL_RECREATE_OBJS) ||
- lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
- new->d_inode->i_generation = body->oa.o_generation;
- mark_inode_dirty(new->d_inode);
-
- /*
- * avoiding asserts in cache flush case, as
- * @body->oa.o_id should be zero.
- */
- if (body->oa.o_id) {
- LASSERTF(body->oa.o_id == new->d_inode->i_ino,
- "BUG 3550: failed to recreate obj "
- LPU64" -> %lu\n", body->oa.o_id,
- new->d_inode->i_ino);
-
- LASSERTF(body->oa.o_generation ==
- new->d_inode->i_generation,
- "BUG 3550: failed to recreate obj/gen "
- LPU64"/%u -> %lu/%u\n", body->oa.o_id,
- body->oa.o_generation,
- new->d_inode->i_ino,
- new->d_inode->i_generation);
- }
- }
-
- obdo_from_inode(&repbody->oa, new->d_inode, FILTER_VALID_FLAGS);
- repbody->oa.o_id = new->d_inode->i_ino;
- repbody->oa.o_generation = new->d_inode->i_generation;
- repbody->oa.o_valid |= OBD_MD_FLID | OBD_MD_FLGENER | OBD_MD_FID;
-
- if ((body->oa.o_flags & OBD_FL_RECREATE_OBJS) ||
- lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
- LASSERT(body->oa.o_id != 0);
- LASSERT(body->oa.o_fid != 0);
- }
-
- mds_inode2id(obd, &id, new->d_inode, fid);
- mds_update_inode_ids(obd, new->d_inode, handle, &id,
- body->oa.o_valid & OBD_MD_FLID ?
- NULL : obdo_id(&body->oa));
-
- /* initializing o_fid after it is allocated. */
- repbody->oa.o_fid = id_fid(&id);
- repbody->oa.o_mds = id_group(&id);
-
- rc = fsfilt_del_dir_entry(obd, new);
- up(&parent_inode->i_sem);
- if (rc) {
- CERROR("can't remove name for object: %d\n", rc);
- GOTO(cleanup, rc);
- }
-
- cleanup_phase = 2; /* created directory object */
-
- CDEBUG(D_OTHER, "created dirobj: %lu/%lu mode %o\n",
- (unsigned long)new->d_inode->i_ino,
- (unsigned long)new->d_inode->i_generation,
- (unsigned)new->d_inode->i_mode);
- cr_inum = new->d_inode->i_ino;
- } else {
- up(&parent_inode->i_sem);
- CERROR("%s: can't create dirobj: %d\n", obd->obd_name, rc);
- GOTO(cleanup, rc);
- }
-
- if (body->oa.o_valid & OBD_MD_FLID) {
- /* this is new object for splitted dir. We have to prevent
- * recursive splitting on it -bzzz */
- mealen = obd_size_diskmd(mds->mds_md_exp, NULL);
-
- OBD_ALLOC(mea, mealen);
- if (mea == NULL)
- GOTO(cleanup, rc = -ENOMEM);
-
- mea->mea_magic = MEA_MAGIC_ALL_CHARS;
- mea->mea_master = body->oa.o_mds; /* master mds num */
- mea->mea_count = 0;
-
- obdo2id(&mea->mea_ids[body->oa.o_mds], &body->oa);
-
- down(&new->d_inode->i_sem);
- rc = fsfilt_set_md(obd, new->d_inode, handle,
- mea, mealen, EA_MEA);
- up(&new->d_inode->i_sem);
- if (rc)
- CERROR("fsfilt_set_md() failed, "
- "rc = %d\n", rc);
-
- OBD_FREE(mea, mealen);
-
- CDEBUG(D_OTHER, "%s: mark non-splittable %lu/%u - %d\n",
- obd->obd_name, new->d_inode->i_ino,
- new->d_inode->i_generation, flags);
- } else if (body->oa.o_easize) {
- /* we pass LCK_EX to split routine to signal that we have
- * exclusive access to the directory. simple because nobody
- * knows it already exists -bzzz */
- rc = mds_try_to_split_dir(obd, new, NULL,
- body->oa.o_easize, LCK_EX);
- if (rc < 0) {
- CERROR("Can't split directory %lu, error = %d.\n",
- new->d_inode->i_ino, rc);
- } else {
- rc = 0;
- }
- }
-
- EXIT;
-cleanup:
- if (rc == 0 && (body->oa.o_flags & OBD_FL_REINT)) {
- rc = mds_fidmap_add(obd, &id);
- if (rc < 0) {
- CERROR("can't create fid->ino mapping, "
- "err %d\n", rc);
- } else {
- rc = 0;
- }
- }
-
- switch (cleanup_phase) {
- case 2: /* object has been created, but we'll may want to replay it later */
- if (rc == 0)
- ptlrpc_require_repack(req);
- case 1: /* transaction */
- rc = mds_finish_transno(mds, parent_inode, handle,
- req, rc, cr_inum);
- }
-
- l_dput(new);
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, &uc);
- return rc;
-}
-
-static int mdt_get_info(struct ptlrpc_request *req)
-{
- struct obd_export *exp = req->rq_export;
- int keylen, rc = 0;
- char *key;
- ENTRY;
-
- key = lustre_msg_buf(req->rq_reqmsg, 0, 1);
- if (key == NULL) {
- DEBUG_REQ(D_HA, req, "no get_info key");
- RETURN(-EFAULT);
- }
- keylen = req->rq_reqmsg->buflens[0];
-
- if ((keylen < strlen("mdsize") || strcmp(key, "mdsize") != 0) &&
- (keylen < strlen("mdsnum") || strcmp(key, "mdsnum") != 0) &&
- (keylen < strlen("lovdesc") || strcmp(key, "lovdesc") != 0) &&
- (keylen < strlen("getext") || strcmp(key, "getext") != 0) &&
- (keylen < strlen("rootid") || strcmp(key, "rootid") != 0))
- RETURN(-EPROTO);
-
- if (keylen >= strlen("rootid") && !strcmp(key, "rootid")) {
- struct lustre_id *reply;
- int size = sizeof(*reply);
-
- rc = lustre_pack_reply(req, 1, &size, NULL);
- if (rc)
- RETURN(rc);
-
- reply = lustre_msg_buf(req->rq_repmsg, 0, size);
- rc = obd_get_info(exp, keylen, key, (__u32 *)&size, reply);
- } else if (keylen >= strlen("lovdesc") && !strcmp(key, "lovdesc")) {
- struct lov_desc *reply;
- int size = sizeof(*reply);
-
- rc = lustre_pack_reply(req, 1, &size, NULL);
- if (rc)
- RETURN(rc);
-
- reply = lustre_msg_buf(req->rq_repmsg, 0, size);
- rc = obd_get_info(exp, keylen, key, (__u32 *)&size, reply);
- } else if (keylen >= strlen("getext") && !strcmp(key, "getext")) {
- struct fid_extent *reply;
- int size = sizeof(*reply);
-
- rc = lustre_pack_reply(req, 1, &size, NULL);
- if (rc)
- RETURN(rc);
-
- reply = lustre_msg_buf(req->rq_repmsg, 0, size);
- rc = obd_get_info(exp, keylen, key, (__u32 *)&size, reply);
- } else {
- obd_id *reply;
- int size = sizeof(*reply);
-
- rc = lustre_pack_reply(req, 1, &size, NULL);
- if (rc)
- RETURN(rc);
-
- reply = lustre_msg_buf(req->rq_repmsg, 0, size);
- rc = obd_get_info(exp, keylen, key, (__u32 *)&size, reply);
- }
-
- req->rq_repmsg->status = 0;
- RETURN(rc);
-}
-
-static int mds_set_info(struct obd_export *exp, __u32 keylen,
- void *key, __u32 vallen, void *val)
-{
- struct obd_device *obd;
- struct mds_obd *mds;
- int rc = 0;
- ENTRY;
-
- obd = class_exp2obd(exp);
- if (obd == NULL) {
- CDEBUG(D_IOCTL, "invalid client cookie "LPX64"\n",
- exp->exp_handle.h_cookie);
- RETURN(-EINVAL);
- }
-
- mds = &obd->u.mds;
- if (keylen == 5 && memcmp(key, "audit", 5) == 0) {
- rc = mds_set_audit(obd, val);
- RETURN(rc);
- } else if (keylen >= strlen("ids") && memcmp(key, "ids", keylen) == 0) {
- struct lustre_id *ids = (struct lustre_id *)val;
- struct dentry *de;
- struct inode *inode;
- void *handle;
- int err;
-
- de = mds_id2dentry(obd, ids, NULL);
- if (IS_ERR(de)) {
- rc = PTR_ERR(de);
- CERROR("lookup by an id error rc=%d\n ", rc);
- RETURN(rc);
- }
- inode = de->d_inode;
- if (inode == NULL)
- GOTO(out_put, rc = -ENOENT);
-
- down(&inode->i_sem);
- handle = fsfilt_start(obd, inode, FSFILT_OP_SETATTR, NULL);
- if (IS_ERR(handle)) {
- up(&inode->i_sem);
- GOTO(out_put, rc = PTR_ERR(handle));
- }
-
- rc = mds_update_inode_ids(obd, inode, handle, NULL, ids + 1);
-
- err = fsfilt_commit(obd, mds->mds_sb, inode, handle,
- exp->exp_sync);
- if (err) {
- CERROR("error committing transaction: %d\n", err);
- if (!rc) rc = err;
- }
- up(&inode->i_sem);
-out_put:
- l_dput(de);
- RETURN(rc);
- }
-
- if (keylen >= strlen("crypto_type") &&
- memcmp(key, "crypto_type", keylen) == 0) {
- rc = mds_set_crypto_type(obd, val, vallen);
- RETURN(rc);
- }
-
- if (keylen >= strlen("setext") && !memcmp(key, "setext", keylen)) {
- struct fid_extent *ext = val;
-
- CDEBUG(D_IOCTL, "set last fid to extent ["LPD64"-"LPD64"]\n",
- ext->fe_start, ext->fe_width);
-
- /* set lastfid into fid extent start. All next object creates
- * will use that fid. */
- mds_set_last_fid(obd, ext->fe_start);
-
- /* setting the same extent to OSC to avoid ids intersecting in
- * object ids, as all cache MDSs have the same group 0. */
- rc = obd_set_info(mds->mds_dt_exp, strlen("setext"),
- "setext", sizeof(*ext), ext);
- if (rc) {
- CERROR("can't set extent ["LPD64"-"LPD64"] to %s, "
- "err %d\n", ext->fe_start, ext->fe_width,
- mds->mds_dt_exp->exp_obd->obd_name, rc);
- }
- RETURN(rc);
- }
- CDEBUG(D_IOCTL, "invalid key\n");
- RETURN(-EINVAL);
-}
-
-static int mdt_set_info(struct ptlrpc_request *req)
-{
- char *key, *val;
- struct obd_export *exp = req->rq_export;
- int keylen, rc = 0, vallen = 0;
- ENTRY;
-
- key = lustre_msg_buf(req->rq_reqmsg, 0, 1);
- if (key == NULL) {
- DEBUG_REQ(D_HA, req, "no set_info key");
- RETURN(-EFAULT);
- }
- keylen = req->rq_reqmsg->buflens[0];
-
- if ((keylen == strlen("crypto_type") &&
- memcmp(key, "crypto_type", keylen) == 0)) {
- rc = lustre_pack_reply(req, 0, NULL, NULL);
- if (rc)
- RETURN(rc);
-
- val = lustre_msg_buf(req->rq_reqmsg, 1, 0);
- vallen = req->rq_reqmsg->buflens[1];
-
- rc = obd_set_info(exp, keylen, key, vallen, val);
- req->rq_repmsg->status = 0;
- RETURN(rc);
- } else if (keylen == 5 && memcmp(key, "audit", 5) == 0) {
- struct audit_attr_msg msg, *p;
- int rc = 0;
-
- rc = lustre_pack_reply(req, 0, NULL, NULL);
- if (rc)
- RETURN(rc);
-
- p = lustre_swab_reqbuf(req, 1, sizeof(msg),
- lustre_swab_audit_attr);
-
- msg = *p;
- CDEBUG(D_INFO, "Get new audit setting 0x%x\n", (__u32)msg.attr);
- rc = obd_set_info(exp, keylen, key, sizeof(msg), &msg);
-
- req->rq_repmsg->status = rc;
- RETURN(rc);
- } else if (keylen == strlen("ids") &&
- memcmp(key, "ids", keylen) == 0) {
- struct lustre_id *id, ids[2];
-
- rc = lustre_pack_reply(req, 0, NULL, NULL);
- if (rc)
- RETURN(rc);
- id = lustre_swab_reqbuf(req, 1, sizeof(struct lustre_id),
- lustre_swab_lustre_id);
- ids[0] = *id;
- id = lustre_swab_reqbuf(req, 2, sizeof(struct lustre_id),
- lustre_swab_lustre_id);
- ids[1] = *id;
-
- rc = obd_set_info(exp, keylen, key, vallen, ids);
- req->rq_repmsg->status = rc;
- RETURN(rc);
- } else if (keylen == strlen("setext") &&
- memcmp(key, "setext", keylen) == 0) {
- rc = lustre_pack_reply(req, 0, NULL, NULL);
- if (rc)
- RETURN(rc);
-
- val = lustre_msg_buf(req->rq_reqmsg, 1, 0);
- vallen = req->rq_reqmsg->buflens[1];
-
- rc = obd_set_info(exp, keylen, key, vallen, val);
- req->rq_repmsg->status = 0;
- RETURN(rc);
- }
-
- CDEBUG(D_IOCTL, "invalid key\n");
- RETURN(-EINVAL);
-}
-
-static void mds_revoke_export_locks(struct obd_export *exp)
-{
- struct list_head *locklist = &exp->exp_ldlm_data.led_held_locks;
- struct list_head rpc_list;
- struct ldlm_lock *lock, *next;
- struct ldlm_lock_desc desc;
-
- /* don't do this for local client */
- if (!exp->u.eu_mds_data.med_remote)
- return;
-
- /* don't revoke locks during recovery */
- if (exp->exp_obd->obd_recovering)
- return;
-
- ENTRY;
- INIT_LIST_HEAD(&rpc_list);
-
- spin_lock(&exp->exp_ldlm_data.led_lock);
- list_for_each_entry_safe(lock, next, locklist, l_export_chain) {
-
- lock_res_and_lock(lock);
- if (lock->l_req_mode != lock->l_granted_mode) {
- unlock_res_and_lock(lock);
- continue;
- }
-
- LASSERT(lock->l_resource);
- if (lock->l_resource->lr_type != LDLM_IBITS &&
- lock->l_resource->lr_type != LDLM_PLAIN) {
- unlock_res_and_lock(lock);
- continue;
- }
-
- if (lock->l_flags & LDLM_FL_AST_SENT) {
- unlock_res_and_lock(lock);
- continue;
- }
-
- LASSERT(lock->l_blocking_ast);
- LASSERT(!lock->l_blocking_lock);
-
- lock->l_flags |= LDLM_FL_AST_SENT;
- unlock_res_and_lock(lock);
-
- list_move(&lock->l_export_chain, &rpc_list);
- }
- spin_unlock(&exp->exp_ldlm_data.led_lock);
-
- while (!list_empty(&rpc_list)) {
- lock = list_entry(rpc_list.next, struct ldlm_lock,
- l_export_chain);
- list_del_init(&lock->l_export_chain);
-
- /* the desc just pretend to exclusive */
- ldlm_lock2desc(lock, &desc);
- desc.l_req_mode = LCK_EX;
- desc.l_granted_mode = 0;
-
- lock->l_blocking_ast(lock, &desc, NULL, LDLM_CB_BLOCKING);
- }
- EXIT;
-}
-
-static int mds_msg_check_version(struct lustre_msg *msg)
-{
- int rc;
-
- switch (msg->opc) {
- case MDS_CONNECT:
- case MDS_DISCONNECT:
- case OBD_PING:
- rc = lustre_msg_check_version(msg, LUSTRE_OBD_VERSION);
- if (rc)
- CERROR("bad opc %u version %08x, expecting %08x\n",
- msg->opc, msg->version, LUSTRE_OBD_VERSION);
- break;
- case MDS_STATFS:
- case MDS_GETSTATUS:
- case MDS_GETATTR:
- case MDS_GETATTR_LOCK:
- case MDS_ACCESS_CHECK:
- case MDS_READPAGE:
- case MDS_REINT:
- case MDS_CLOSE:
- case MDS_DONE_WRITING:
- case MDS_PIN:
- case MDS_SYNC:
- rc = lustre_msg_check_version(msg, LUSTRE_MDS_VERSION);
- if (rc)
- CERROR("bad opc %u version %08x, expecting %08x\n",
- msg->opc, msg->version, LUSTRE_MDS_VERSION);
- break;
- case LDLM_ENQUEUE:
- case LDLM_CONVERT:
- case LDLM_BL_CALLBACK:
- case LDLM_CP_CALLBACK:
- rc = lustre_msg_check_version(msg, LUSTRE_DLM_VERSION);
- if (rc)
- CERROR("bad opc %u version %08x, expecting %08x\n",
- msg->opc, msg->version, LUSTRE_DLM_VERSION);
- break;
- case OBD_LOG_CANCEL:
- case LLOG_ORIGIN_HANDLE_OPEN:
- case LLOG_ORIGIN_HANDLE_NEXT_BLOCK:
- case LLOG_ORIGIN_HANDLE_PREV_BLOCK:
- case LLOG_ORIGIN_HANDLE_READ_HEADER:
- case LLOG_ORIGIN_HANDLE_CLOSE:
- case LLOG_CATINFO:
- rc = lustre_msg_check_version(msg, LUSTRE_LOG_VERSION);
- if (rc)
- CERROR("bad opc %u version %08x, expecting %08x\n",
- msg->opc, msg->version, LUSTRE_LOG_VERSION);
- break;
- case OST_CREATE:
- case OST_WRITE:
- case OST_GET_INFO:
- case OST_SET_INFO:
- rc = lustre_msg_check_version(msg, LUSTRE_OBD_VERSION);
- if (rc)
- CERROR("bad opc %u version %08x, expecting %08x\n",
- msg->opc, msg->version, LUSTRE_OBD_VERSION);
- break;
- case SEC_INIT:
- case SEC_INIT_CONTINUE:
- case SEC_FINI:
- rc = 0;
- break;
- default:
- CERROR("MDS unknown opcode %d\n", msg->opc);
- rc = -ENOTSUPP;
- break;
- }
-
- return rc;
-}
-
-int mds_handle(struct ptlrpc_request *req)
-{
- int should_process, fail = OBD_FAIL_MDS_ALL_REPLY_NET;
- struct obd_device *obd = NULL;
- struct mds_obd *mds = NULL; /* quell gcc overwarning */
- int rc = 0;
- ENTRY;
-
- OBD_FAIL_RETURN(OBD_FAIL_MDS_ALL_REQUEST_NET | OBD_FAIL_ONCE, 0);
-
- rc = mds_msg_check_version(req->rq_reqmsg);
- if (rc) {
- CERROR("MDS drop mal-formed request\n");
- RETURN(rc);
- }
-
- /* Security opc should NOT trigger any recovery events */
- if (req->rq_reqmsg->opc == SEC_INIT ||
- req->rq_reqmsg->opc == SEC_INIT_CONTINUE) {
- if (req->rq_export) {
- mds_req_add_idmapping(req,
- &req->rq_export->exp_mds_data);
- mds_revoke_export_locks(req->rq_export);
- }
- GOTO(out, rc = 0);
- } else if (req->rq_reqmsg->opc == SEC_FINI) {
- if (req->rq_export) {
- mds_req_del_idmapping(req,
- &req->rq_export->exp_mds_data);
- mds_revoke_export_locks(req->rq_export);
- }
- GOTO(out, rc = 0);
- }
-
- LASSERT(current->journal_info == NULL);
- /* XXX identical to OST */
- if (req->rq_reqmsg->opc != MDS_CONNECT) {
- struct mds_export_data *med;
- int recovering;
-
- if (req->rq_export == NULL) {
- CERROR("operation %d on unconnected MDS from %s\n",
- req->rq_reqmsg->opc,
- req->rq_peerstr);
- req->rq_status = -ENOTCONN;
- GOTO(out, rc = -ENOTCONN);
- }
-
- med = &req->rq_export->exp_mds_data;
- obd = req->rq_export->exp_obd;
- mds = &obd->u.mds;
-
- /* sanity check: if the xid matches, the request must
- * be marked as a resent or replayed */
- if (req->rq_xid == le64_to_cpu(med->med_mcd->mcd_last_xid) ||
- req->rq_xid == le64_to_cpu(med->med_mcd->mcd_last_close_xid)) {
- LASSERTF(lustre_msg_get_flags(req->rq_reqmsg) &
- (MSG_RESENT | MSG_REPLAY),
- "rq_xid "LPU64" matches last_xid, "
- "expected RESENT flag\n",
- req->rq_xid);
- }
- /* else: note the opposite is not always true; a
- * RESENT req after a failover will usually not match
- * the last_xid, since it was likely never
- * committed. A REPLAYed request will almost never
- * match the last xid, however it could for a
- * committed, but still retained, open. */
-
- spin_lock_bh(&obd->obd_processing_task_lock);
- recovering = obd->obd_recovering;
- spin_unlock_bh(&obd->obd_processing_task_lock);
- if (recovering) {
- rc = mds_filter_recovery_request(req, obd,
- &should_process);
- if (rc || should_process == 0) {
- RETURN(rc);
- } else if (should_process < 0) {
- req->rq_status = should_process;
- rc = ptlrpc_error(req);
- RETURN(rc);
- }
- }
- }
-
- switch (req->rq_reqmsg->opc) {
- case MDS_CONNECT:
- DEBUG_REQ(D_INODE, req, "connect");
- OBD_FAIL_RETURN(OBD_FAIL_MDS_CONNECT_NET, 0);
- rc = target_handle_connect(req);
- if (!rc) {
- struct mds_export_data *med;
-
- LASSERT(req->rq_export);
- med = &req->rq_export->u.eu_mds_data;
- mds_init_export_data(req, med);
- mds_req_add_idmapping(req, med);
-
- /* Now that we have an export, set mds. */
- obd = req->rq_export->exp_obd;
- mds = mds_req2mds(req);
- }
- break;
-
- case MDS_DISCONNECT:
- DEBUG_REQ(D_INODE, req, "disconnect");
- OBD_FAIL_RETURN(OBD_FAIL_MDS_DISCONNECT_NET, 0);
- rc = target_handle_disconnect(req);
- req->rq_status = rc; /* superfluous? */
- break;
-
- case MDS_GETSTATUS:
- DEBUG_REQ(D_INODE, req, "getstatus");
- OBD_FAIL_RETURN(OBD_FAIL_MDS_GETSTATUS_NET, 0);
- rc = mds_getstatus(req);
- break;
-
- case MDS_GETATTR:
- DEBUG_REQ(D_INODE, req, "getattr");
- OBD_FAIL_RETURN(OBD_FAIL_MDS_GETATTR_NET, 0);
- rc = mds_getattr(req, MDS_REQ_REC_OFF);
- break;
-
- case MDS_ACCESS_CHECK:
- DEBUG_REQ(D_INODE, req, "access_check");
- OBD_FAIL_RETURN(OBD_FAIL_MDS_ACCESS_CHECK_NET, 0);
- rc = mds_access_check(req, MDS_REQ_REC_OFF);
- break;
-
- case MDS_GETATTR_LOCK: {
- struct lustre_handle lockh;
- DEBUG_REQ(D_INODE, req, "getattr_lock");
- OBD_FAIL_RETURN(OBD_FAIL_MDS_GETATTR_LOCK_NET, 0);
-
- /* If this request gets a reconstructed reply, we won't be
- * acquiring any new locks in mds_getattr_lock, so we don't
- * want to cancel.
- */
- lockh.cookie = 0;
- rc = mds_getattr_lock(req, MDS_REQ_REC_OFF, &lockh,
- MDS_INODELOCK_UPDATE);
- /* this non-intent call (from an ioctl) is special */
- req->rq_status = rc;
- if (rc == 0 && lockh.cookie)
- ldlm_lock_decref(&lockh, LCK_PR);
- break;
- }
- case MDS_STATFS:
- DEBUG_REQ(D_INODE, req, "statfs");
- OBD_FAIL_RETURN(OBD_FAIL_MDS_STATFS_NET, 0);
- rc = mds_statfs(req);
- break;
-
- case MDS_READPAGE:
- DEBUG_REQ(D_INODE, req, "readpage");
- OBD_FAIL_RETURN(OBD_FAIL_MDS_READPAGE_NET, 0);
- rc = mds_readpage(req, MDS_REQ_REC_OFF);
-
- if (OBD_FAIL_CHECK_ONCE(OBD_FAIL_MDS_SENDPAGE)) {
- if (req->rq_reply_state) {
- lustre_free_reply_state (req->rq_reply_state);
- req->rq_reply_state = NULL;
- }
- RETURN(0);
- }
-
- break;
- case MDS_REINT: {
- __u32 *opcp = lustre_msg_buf(req->rq_reqmsg, MDS_REQ_REC_OFF,
- sizeof (*opcp));
- __u32 opc;
- int size[3] = {sizeof(struct mds_body), mds->mds_max_mdsize,
- mds->mds_max_cookiesize};
- int bufcount;
-
- /* NB only peek inside req now; mds_reint() will swab it */
- if (opcp == NULL) {
- CERROR ("Can't inspect opcode\n");
- rc = -EINVAL;
- break;
- }
- opc = *opcp;
- if (lustre_msg_swabbed (req->rq_reqmsg))
- __swab32s(&opc);
-
- DEBUG_REQ(D_INODE, req, "reint %d (%s)", opc,
- (opc < sizeof(reint_names) / sizeof(reint_names[0]) ||
- reint_names[opc] == NULL) ? reint_names[opc] :
- "unknown opcode");
-
- OBD_FAIL_RETURN(OBD_FAIL_MDS_REINT_NET, 0);
-
- if (opc == REINT_UNLINK || opc == REINT_RENAME)
- bufcount = 3;
- else if (opc == REINT_OPEN)
- bufcount = 2;
- else
- bufcount = 1;
-
- /* for SETATTR: I have different reply setting for
- * remote setfacl, so delay the reply buffer allocation.
- */
- if (opc != REINT_SETATTR) {
- rc = lustre_pack_reply(req, bufcount, size, NULL);
- if (rc)
- break;
- }
-
- rc = mds_reint(req, MDS_REQ_REC_OFF, NULL);
- fail = OBD_FAIL_MDS_REINT_NET_REP;
- break;
- }
-
- case MDS_CLOSE:
- DEBUG_REQ(D_INODE, req, "close");
- OBD_FAIL_RETURN(OBD_FAIL_MDS_CLOSE_NET, 0);
- rc = mds_close(req, MDS_REQ_REC_OFF);
- break;
-
- case MDS_DONE_WRITING:
- DEBUG_REQ(D_INODE, req, "done_writing");
- OBD_FAIL_RETURN(OBD_FAIL_MDS_DONE_WRITING_NET, 0);
- rc = mds_done_writing(req, MDS_REQ_REC_OFF);
- break;
-
- case MDS_PIN:
- DEBUG_REQ(D_INODE, req, "pin");
- OBD_FAIL_RETURN(OBD_FAIL_MDS_PIN_NET, 0);
- rc = mds_pin(req, MDS_REQ_REC_OFF);
- break;
-
- case MDS_SYNC:
- DEBUG_REQ(D_INODE, req, "sync");
- OBD_FAIL_RETURN(OBD_FAIL_MDS_SYNC_NET, 0);
- rc = mds_sync(req, MDS_REQ_REC_OFF);
- break;
- case MDS_PARSE_ID:
- DEBUG_REQ(D_INODE, req, "parseid");
- rc = mds_parse_id(req);
- break;
- case OBD_PING:
- DEBUG_REQ(D_INODE, req, "ping");
- rc = target_handle_ping(req);
- break;
-
- case OBD_LOG_CANCEL:
- CDEBUG(D_INODE, "log cancel\n");
- OBD_FAIL_RETURN(OBD_FAIL_OBD_LOG_CANCEL_NET, 0);
- rc = -ENOTSUPP; /* la la la */
- break;
-
- case LDLM_ENQUEUE:
- DEBUG_REQ(D_INODE, req, "enqueue");
- OBD_FAIL_RETURN(OBD_FAIL_LDLM_ENQUEUE, 0);
- rc = ldlm_handle_enqueue(req, ldlm_server_completion_ast,
- ldlm_server_blocking_ast, NULL);
- fail = OBD_FAIL_LDLM_REPLY;
- break;
- case LDLM_CONVERT:
- DEBUG_REQ(D_INODE, req, "convert");
- OBD_FAIL_RETURN(OBD_FAIL_LDLM_CONVERT, 0);
- rc = ldlm_handle_convert(req);
- break;
- case LDLM_BL_CALLBACK:
- case LDLM_CP_CALLBACK:
- DEBUG_REQ(D_INODE, req, "callback");
- CERROR("callbacks should not happen on MDS\n");
- LBUG();
- OBD_FAIL_RETURN(OBD_FAIL_LDLM_BL_CALLBACK, 0);
- break;
- case LLOG_ORIGIN_HANDLE_OPEN:
- DEBUG_REQ(D_INODE, req, "llog_init");
- OBD_FAIL_RETURN(OBD_FAIL_OBD_LOGD_NET, 0);
- rc = llog_origin_handle_open(req);
- break;
- case LLOG_ORIGIN_HANDLE_NEXT_BLOCK:
- DEBUG_REQ(D_INODE, req, "llog next block");
- OBD_FAIL_RETURN(OBD_FAIL_OBD_LOGD_NET, 0);
- rc = llog_origin_handle_next_block(req);
- break;
- case LLOG_ORIGIN_HANDLE_PREV_BLOCK:
- DEBUG_REQ(D_INODE, req, "llog prev block");
- OBD_FAIL_RETURN(OBD_FAIL_OBD_LOGD_NET, 0);
- rc = llog_origin_handle_prev_block(req);
- break;
- case LLOG_ORIGIN_HANDLE_READ_HEADER:
- DEBUG_REQ(D_INODE, req, "llog read header");
- OBD_FAIL_RETURN(OBD_FAIL_OBD_LOGD_NET, 0);
- rc = llog_origin_handle_read_header(req);
- break;
- case LLOG_ORIGIN_HANDLE_CLOSE:
- DEBUG_REQ(D_INODE, req, "llog close");
- OBD_FAIL_RETURN(OBD_FAIL_OBD_LOGD_NET, 0);
- rc = llog_origin_handle_close(req);
- break;
- case OST_CREATE:
- DEBUG_REQ(D_INODE, req, "ost_create");
- rc = mdt_obj_create(req);
- break;
- case OST_GET_INFO:
- DEBUG_REQ(D_INODE, req, "get_info");
- rc = mdt_get_info(req);
- break;
- case OST_SET_INFO:
- DEBUG_REQ(D_INODE, req, "set_info");
- rc = mdt_set_info(req);
- break;
- case OST_WRITE:
- CDEBUG(D_INODE, "write\n");
- OBD_FAIL_RETURN(OBD_FAIL_OST_BRW_NET, 0);
- rc = ost_brw_write(req, NULL);
- LASSERT(current->journal_info == NULL);
- /* mdt_brw sends its own replies */
- RETURN(rc);
- break;
- case LLOG_CATINFO:
- DEBUG_REQ(D_INODE, req, "llog catinfo");
- OBD_FAIL_RETURN(OBD_FAIL_OBD_LOGD_NET, 0);
- rc = llog_catinfo(req);
- break;
- default:
- req->rq_status = -ENOTSUPP;
- rc = ptlrpc_error(req);
- RETURN(rc);
- }
-
- LASSERT(current->journal_info == NULL);
-
- EXIT;
-
- /* If we're DISCONNECTing, the mds_export_data is already freed */
- if (!rc && req->rq_reqmsg->opc != MDS_DISCONNECT) {
- struct mds_export_data *med = &req->rq_export->exp_mds_data;
- struct obd_device *obd = list_entry(mds, struct obd_device,
- u.mds);
- req->rq_repmsg->last_xid =
- le64_to_cpu(med->med_mcd->mcd_last_xid);
-
- if (!obd->obd_no_transno) {
- req->rq_repmsg->last_committed =
- obd->obd_last_committed;
- } else {
- DEBUG_REQ(D_IOCTL, req,
- "not sending last_committed update");
- }
- CDEBUG(D_INFO, "last_transno "LPU64", last_committed "LPU64
- ", xid "LPU64"\n",
- mds->mds_last_transno, obd->obd_last_committed,
- req->rq_xid);
- }
- out:
-
-
- target_send_reply(req, rc, fail);
- return 0;
-}
-
-/* Update the server data on disk. This stores the new mount_count and also the
- * last_rcvd value to disk. If we don't have a clean shutdown, then the server
- * last_rcvd value may be less than that of the clients. This will alert us
- * that we may need to do client recovery.
- *
- * Also assumes for mds_last_transno that we are not modifying it (no locking).
- */
-int mds_update_server_data(struct obd_device *obd, int force_sync)
-{
- struct mds_obd *mds = &obd->u.mds;
- struct mds_server_data *msd = mds->mds_server_data;
- struct file *filp = mds->mds_rcvd_filp;
- struct lvfs_run_ctxt saved;
- loff_t off = 0;
- int rc;
- ENTRY;
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- msd->msd_last_transno = cpu_to_le64(mds->mds_last_transno);
-
- CDEBUG(D_SUPER, "MDS mount_count is "LPU64", last_transno is "LPU64"\n",
- mds->mds_mount_count, mds->mds_last_transno);
- rc = fsfilt_write_record(obd, filp, msd, sizeof(*msd), &off, force_sync);
- if (rc)
- CERROR("error writing MDS server data: rc = %d\n", rc);
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- RETURN(rc);
-}
-
-/* saves last allocated fid counter to file. */
-int mds_update_last_fid(struct obd_device *obd, void *handle,
- int force_sync)
-{
- struct mds_obd *mds = &obd->u.mds;
- struct file *filp = mds->mds_fid_filp;
- struct lvfs_run_ctxt saved;
- loff_t off = 0;
- __u64 last_fid;
- int rc = 0;
- ENTRY;
-
- spin_lock(&mds->mds_last_fid_lock);
- last_fid = mds->mds_last_fid;
- spin_unlock(&mds->mds_last_fid_lock);
-
- CDEBUG(D_SUPER, "MDS last_fid is #"LPU64"\n",
- last_fid);
-
- if (handle) {
- fsfilt_add_journal_cb(obd, mds->mds_sb, last_fid,
- handle, mds_commit_last_fid_cb,
- NULL);
- }
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- rc = fsfilt_write_record(obd, filp, &last_fid, sizeof(last_fid),
- &off, force_sync);
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- if (rc) {
- CERROR("error writing MDS last_fid #"LPU64
- ", err = %d\n", last_fid, rc);
- RETURN(rc);
- }
-
- CDEBUG(D_SUPER, "wrote fid #"LPU64" at idx "
- "%llu: err = %d\n", last_fid, off, rc);
-
- RETURN(rc);
-}
-
-void mds_set_last_fid(struct obd_device *obd, __u64 fid)
-{
- struct mds_obd *mds = &obd->u.mds;
-
- spin_lock(&mds->mds_last_fid_lock);
- if (fid > mds->mds_last_fid)
- mds->mds_last_fid = fid;
- spin_unlock(&mds->mds_last_fid_lock);
-}
-
-void mds_commit_last_transno_cb(struct obd_device *obd,
- __u64 transno, void *data,
- int error)
-{
- obd_transno_commit_cb(obd, transno, error);
-}
-
-void mds_commit_last_fid_cb(struct obd_device *obd,
- __u64 fid, void *data,
- int error)
-{
- if (error) {
- CERROR("%s: fid "LPD64" commit error: %d\n",
- obd->obd_name, fid, error);
- return;
- }
-
- CDEBUG(D_HA, "%s: fid "LPD64" committed\n",
- obd->obd_name, fid);
-}
-
-__u64 mds_alloc_fid(struct obd_device *obd)
-{
- struct mds_obd *mds = &obd->u.mds;
- __u64 fid;
-
- spin_lock(&mds->mds_last_fid_lock);
- fid = ++mds->mds_last_fid;
- spin_unlock(&mds->mds_last_fid_lock);
-
- return fid;
-}
-
-/*
- * reads inode self id from inode EA. Probably later this should be replaced by
- * caching inode self id to avoid raeding it every time it is needed.
- */
-int mds_read_inode_sid(struct obd_device *obd, struct inode *inode,
- struct lustre_id *id)
-{
- int rc;
- ENTRY;
-
- LASSERT(id != NULL);
- LASSERT(obd != NULL);
- LASSERT(inode != NULL);
-
- rc = fsfilt_get_md(obd, inode, &id->li_fid,
- sizeof(id->li_fid), EA_SID);
- if (rc < 0) {
- CERROR("fsfilt_get_md() failed, "
- "rc = %d\n", rc);
- RETURN(rc);
- } else if (!rc) {
- rc = -ENODATA;
- RETURN(rc);
- } else {
- rc = 0;
- }
- id_ino(id) = inode->i_ino;
- id_gen(id) = inode->i_generation;
- id_type(id) = S_IFMT & inode->i_mode;
-
- RETURN(rc);
-}
-
-int mds_read_inode_pid(struct obd_device *obd, struct inode *inode,
- struct lustre_id *id)
-{
- int rc;
- ENTRY;
-
- LASSERT(inode && id);
-
- rc = fsfilt_get_md(obd, inode, id, sizeof(*id), EA_PID);
- if (rc < 0)
- CERROR("get parent id from EA failed, rc=%d\n", rc);
- else if (!rc)
- rc = -ENODATA;
- else
- rc = 0;
-
- RETURN(rc);
-}
-
-/* updates inode self id in EA. */
-int mds_update_inode_ids(struct obd_device *obd, struct inode *inode,
- void *handle, struct lustre_id *id,
- struct lustre_id *pid)
-{
- int rc = 0;
- ENTRY;
-
- LASSERT(id || pid);
- LASSERT(id == NULL || id_fid(id) != 0);
- LASSERT(pid == NULL || id_fid(pid) != 0);
- LASSERT(obd != NULL);
- LASSERT(inode != NULL);
-
- if (id) {
- mds_set_last_fid(obd, id_fid(id));
- rc = fsfilt_set_md(obd, inode, handle, &id->li_fid,
- sizeof(id->li_fid), EA_SID);
- LASSERTF(rc == 0, "failed to update fid: %d\n", rc);
- }
- if (pid) {
- rc = fsfilt_set_md(obd, inode, handle, pid,
- sizeof(*pid), EA_PID);
- LASSERTF(rc == 0, "failed to update parent fid: %d\n", rc);
- }
-
- RETURN(rc);
-}
-
-/* mount the file system (secretly) */
-static int mds_setup(struct obd_device *obd, obd_count len, void *buf)
-{
- struct lustre_cfg* lcfg = buf;
- struct mds_obd *mds = &obd->u.mds;
- struct lvfs_obd_ctxt *lvfs_ctxt = NULL;
- char *options = NULL;
- struct vfsmount *mnt;
- char ns_name[48];
- unsigned long page;
- struct crypto_tfm *tfm = NULL;
- int rc = 0;
- ENTRY;
-
- if (lcfg->lcfg_bufcount < 3)
- RETURN(rc = -EINVAL);
-
- if (LUSTRE_CFG_BUFLEN(lcfg, 1) == 0 || LUSTRE_CFG_BUFLEN(lcfg, 2) == 0)
- RETURN(rc = -EINVAL);
-
- obd->obd_fsops = fsfilt_get_ops(lustre_cfg_string(lcfg, 2));
- if (IS_ERR(obd->obd_fsops))
- RETURN(rc = PTR_ERR(obd->obd_fsops));
-
- mds->mds_max_mdsize = sizeof(struct lov_mds_md);
-
- page = get_zeroed_page(GFP_KERNEL);
- if (!page)
- RETURN(-ENOMEM);
-
- options = (char *)page;
-
- /*
- * here we use "iopen_nopriv" hardcoded, because it affects MDS utility
- * and the rest of options are passed by mount options. Probably this
- * should be moved to somewhere else like startup scripts or lconf. */
- sprintf(options, "iopen_nopriv");
-
- if (LUSTRE_CFG_BUFLEN(lcfg, 4) > 0 && lustre_cfg_buf(lcfg, 4))
- sprintf(options + strlen(options), ",%s",
- lustre_cfg_string(lcfg, 4));
-
- /* we have to know mdsnum before touching underlying fs -bzzz */
- atomic_set(&mds->mds_open_count, 0);
- sema_init(&mds->mds_md_sem, 1);
- mds->mds_md_connected = 0;
- mds->mds_md_name = NULL;
-
- if (LUSTRE_CFG_BUFLEN(lcfg, 5) > 0 && lustre_cfg_buf(lcfg, 5) &&
- strncmp(lustre_cfg_string(lcfg, 5), "dumb", LUSTRE_CFG_BUFLEN(lcfg, 5))) {
- class_uuid_t uuid;
-
- generate_random_uuid(uuid);
- class_uuid_unparse(uuid, &mds->mds_md_uuid);
-
- OBD_ALLOC(mds->mds_md_name, LUSTRE_CFG_BUFLEN(lcfg, 5));
- if (mds->mds_md_name == NULL)
- RETURN(rc = -ENOMEM);
-
- memcpy(mds->mds_md_name, lustre_cfg_buf(lcfg, 5),
- LUSTRE_CFG_BUFLEN(lcfg, 5));
-
- CDEBUG(D_OTHER, "MDS: %s is master for %s\n",
- obd->obd_name, mds->mds_md_name);
-
- rc = mds_md_connect(obd, mds->mds_md_name);
- if (rc) {
- OBD_FREE(mds->mds_md_name, LUSTRE_CFG_BUFLEN(lcfg, 5));
- GOTO(err_ops, rc);
- }
- }
-
- mds->mds_obd_type = MDS_MASTER_OBD;
-
- if (LUSTRE_CFG_BUFLEN(lcfg, 6) > 0 && lustre_cfg_buf(lcfg, 6) &&
- strncmp(lustre_cfg_string(lcfg, 6), "dumb",
- LUSTRE_CFG_BUFLEN(lcfg, 6))) {
- if (!memcmp(lustre_cfg_string(lcfg, 6), "master",
- strlen("master"))) {
- mds->mds_obd_type = MDS_MASTER_OBD;
- } else if (!memcmp(lustre_cfg_string(lcfg, 6), "cache",
- strlen("cache"))) {
- mds->mds_obd_type = MDS_CACHE_OBD;
- }
- }
-
- rc = lvfs_mount_fs(lustre_cfg_string(lcfg, 1),
- lustre_cfg_string(lcfg, 2),
- options, 0, &lvfs_ctxt);
-
- free_page(page);
-
- if (rc || !lvfs_ctxt) {
- CERROR("lvfs_mount_fs failed: rc = %d\n", rc);
- GOTO(err_ops, rc);
- }
-
- mnt = lvfs_ctxt->loc_mnt;
- mds->mds_lvfs_ctxt = lvfs_ctxt;
- ll_clear_rdonly(ll_sbdev(mnt->mnt_sb));
-
- CDEBUG(D_SUPER, "%s: mnt = %p\n", lustre_cfg_string(lcfg, 1), mnt);
-
- mds->mds_fidext_thumb = 0;
- sema_init(&mds->mds_epoch_sem, 1);
- atomic_set(&mds->mds_real_clients, 0);
- spin_lock_init(&mds->mds_fidext_lock);
- spin_lock_init(&mds->mds_fidmap_lock);
- spin_lock_init(&mds->mds_transno_lock);
- spin_lock_init(&mds->mds_last_fid_lock);
- sema_init(&mds->mds_orphan_recovery_sem, 1);
- mds->mds_max_cookiesize = sizeof(struct llog_cookie);
-
- sprintf(ns_name, "mds-%s", obd->obd_uuid.uuid);
- obd->obd_namespace = ldlm_namespace_new(ns_name, LDLM_NAMESPACE_SERVER);
-
- if (obd->obd_namespace == NULL) {
- mds_cleanup(obd, 0);
- GOTO(err_put, rc = -ENOMEM);
- }
- ldlm_register_intent(obd->obd_namespace, mds_intent_policy);
-
- tfm = crypto_alloc_tfm(CAPA_HMAC_ALG, 0);
- if (!tfm)
- GOTO(err_ns, rc = -ENOSYS);
-
- mds->mds_capa_hmac = tfm;
- mds->mds_capa_timeout = CAPA_TIMEOUT;
- mds->mds_capa_key_timeout = CAPA_KEY_TIMEOUT;
-
- rc = mds_fs_setup(obd, mnt);
- if (rc) {
- CERROR("%s: MDS filesystem method init failed: rc = %d\n",
- obd->obd_name, rc);
- GOTO(err_capa, rc);
- }
-
- rc = llog_start_commit_thread();
- if (rc < 0)
-
- GOTO(err_fs, rc);
-
- if (LUSTRE_CFG_BUFLEN(lcfg, 3) > 0 && lustre_cfg_buf(lcfg, 3) &&
- strncmp(lustre_cfg_string(lcfg, 3), "dumb",
- LUSTRE_CFG_BUFLEN(lcfg, 3))) {
- class_uuid_t uuid;
-
- generate_random_uuid(uuid);
- class_uuid_unparse(uuid, &mds->mds_dt_uuid);
-
- OBD_ALLOC(mds->mds_profile, LUSTRE_CFG_BUFLEN(lcfg, 3));
- if (mds->mds_profile == NULL)
- GOTO(err_fs, rc = -ENOMEM);
-
- strncpy(mds->mds_profile, lustre_cfg_string(lcfg, 3),
- LUSTRE_CFG_BUFLEN(lcfg, 3));
- }
-
- /*
- * setup root dir and files ID dir if lmv already connected, or there is
- * not lmv at all.
- */
- if (mds->mds_md_exp || (LUSTRE_CFG_BUFLEN(lcfg, 3) > 0 &&
- lustre_cfg_buf(lcfg, 3) &&
- strncmp(lustre_cfg_string(lcfg, 3), "dumb",
- LUSTRE_CFG_BUFLEN(lcfg, 3)))) {
- rc = mds_fs_setup_rootid(obd);
- if (rc)
- GOTO(err_fs, rc);
-
- rc = mds_fs_setup_virtid(obd);
- if (rc)
- GOTO(err_fs, rc);
-
- }
-
- ptlrpc_init_client(LDLM_CB_REQUEST_PORTAL, LDLM_CB_REPLY_PORTAL,
- "mds_ldlm_client", &obd->obd_ldlm_client);
- obd->obd_replayable = 1;
-
- mds->mds_crypto_type = NO_CRYPTO;
-
- rc = mds_postsetup(obd);
- if (rc)
- GOTO(err_fs, rc);
-
- RETURN(0);
-
-err_fs:
- /* No extra cleanup needed for llog_init_commit_thread() */
- mds_fs_cleanup(obd, 0);
-err_capa:
- crypto_free_tfm(mds->mds_capa_hmac);
-err_ns:
- ldlm_namespace_free(obd->obd_namespace, 0);
- obd->obd_namespace = NULL;
-err_put:
- unlock_kernel();
- lvfs_umount_fs(mds->mds_lvfs_ctxt);
- mds->mds_sb = 0;
- lock_kernel();
-err_ops:
- fsfilt_put_ops(obd->obd_fsops);
- return rc;
-}
-
-static int mds_fs_post_setup(struct obd_device *obd)
-{
- struct mds_obd *mds = &obd->u.mds;
- struct dentry *dentry;
- int rc = 0;
- ENTRY;
-
- dentry = mds_id2dentry(obd, &mds->mds_rootid, NULL);
- if (IS_ERR(dentry)) {
- CERROR("Can't find ROOT, err = %d\n",
- (int)PTR_ERR(dentry));
- RETURN(PTR_ERR(dentry));
- }
- rc = fsfilt_post_setup(obd, dentry);
- //set id2name function handler
- fsfilt_set_info(obd, mds->mds_sb, NULL, 7, "id2name",
- sizeof(mds_audit_id2name), mds_audit_id2name);
-
- l_dput(dentry);
- RETURN(rc);
-}
-
-static int mds_postsetup(struct obd_device *obd)
-{
- struct mds_obd *mds = &obd->u.mds;
- int rc = 0;
- ENTRY;
-
- rc = obd_llog_setup(obd, &obd->obd_llogs, LLOG_CONFIG_ORIG_CTXT,
- obd, 0, NULL, &llog_lvfs_ops);
- if (rc)
- RETURN(rc);
-
- if (mds->mds_profile) {
- struct llog_ctxt *lgctxt;
- struct lvfs_run_ctxt saved;
- struct lustre_profile *lprof;
- struct config_llog_instance cfg;
-
- cfg.cfg_instance = NULL;
- cfg.cfg_uuid = mds->mds_dt_uuid;
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- lgctxt = llog_get_context(&obd->obd_llogs, LLOG_CONFIG_ORIG_CTXT);
- if (!lgctxt) {
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- GOTO(err_llog, rc = -EINVAL);
- }
-
- rc = class_config_process_llog(lgctxt, mds->mds_profile, &cfg);
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- if (rc)
- GOTO(err_llog, rc);
-
- lprof = class_get_profile(mds->mds_profile);
- if (lprof == NULL) {
- CERROR("No profile found: %s\n", mds->mds_profile);
- GOTO(err_cleanup, rc = -ENOENT);
- }
- rc = mds_dt_connect(obd, lprof->lp_lov);
- if (rc)
- GOTO(err_cleanup, rc);
-
- rc = mds_md_postsetup(obd);
- if (rc)
- GOTO(err_cleanup, rc);
- }
- rc = mds_fs_post_setup(obd);
- if (rc)
- CERROR("can not post setup fsfilt\n");
- RETURN(rc);
-err_cleanup:
- mds_dt_clean(obd);
-err_llog:
- obd_llog_cleanup(llog_get_context(&obd->obd_llogs,
- LLOG_CONFIG_ORIG_CTXT));
- return rc;
-}
-
-int mds_postrecov_common(struct obd_device *obd)
-{
- struct mds_obd *mds = &obd->u.mds;
- struct llog_ctxt *ctxt;
- int rc, item = 0, valsize;
- __u32 group;
- ENTRY;
-
- LASSERT(!obd->obd_recovering);
- ctxt = llog_get_context(&obd->obd_llogs, LLOG_UNLINK_ORIG_CTXT);
- LASSERT(ctxt != NULL);
-
- /* clean PENDING dir */
- rc = mds_cleanup_orphans(obd);
- if (rc < 0)
- GOTO(out, rc);
- item = rc;
-
- group = FILTER_GROUP_FIRST_MDS + mds->mds_num;
- valsize = sizeof(group);
- rc = obd_set_info(mds->mds_dt_exp, strlen("mds_conn"),
- "mds_conn", valsize, &group);
- if (rc)
- GOTO(out, rc);
-
- rc = llog_connect(ctxt, obd->u.mds.mds_dt_desc.ld_tgt_count,
- NULL, NULL, NULL);
- if (rc) {
- CERROR("%s: failed at llog_origin_connect: %d\n",
- obd->obd_name, rc);
- GOTO(out, rc);
- }
-
- /* remove the orphaned precreated objects */
- rc = mds_dt_clear_orphans(mds, NULL /* all OSTs */);
- if (rc)
- GOTO(err_llog, rc);
-
-out:
- RETURN(rc < 0 ? rc : item);
-
-err_llog:
- /* cleanup all llogging subsystems */
- rc = obd_llog_finish(obd, &obd->obd_llogs,
- mds->mds_dt_desc.ld_tgt_count);
- if (rc)
- CERROR("%s: failed to cleanup llogging subsystems\n",
- obd->obd_name);
- goto out;
-}
-
-int mds_postrecov(struct obd_device *obd)
-{
- int rc;
- ENTRY;
- rc = mds_postrecov_common(obd);
- if (rc == 0)
- rc = mds_md_reconnect(obd);
- RETURN(rc);
-}
-
-int mds_dt_clean(struct obd_device *obd)
-{
- struct mds_obd *mds = &obd->u.mds;
- ENTRY;
-
- if (mds->mds_profile) {
- char * cln_prof;
- struct llog_ctxt *llctx;
- struct lvfs_run_ctxt saved;
- struct config_llog_instance cfg;
- int len = strlen(mds->mds_profile) + sizeof("-clean") + 1;
-
- OBD_ALLOC(cln_prof, len);
- sprintf(cln_prof, "%s-clean", mds->mds_profile);
-
- cfg.cfg_instance = NULL;
- cfg.cfg_uuid = mds->mds_dt_uuid;
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- llctx = llog_get_context(&obd->obd_llogs,
- LLOG_CONFIG_ORIG_CTXT);
- class_config_process_llog(llctx, cln_prof, &cfg);
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- OBD_FREE(cln_prof, len);
- OBD_FREE(mds->mds_profile, strlen(mds->mds_profile) + 1);
- mds->mds_profile = NULL;
- }
- RETURN(0);
-}
-
-int mds_md_clean(struct obd_device *obd)
-{
- struct mds_obd *mds = &obd->u.mds;
- ENTRY;
-
- if (mds->mds_md_name) {
- OBD_FREE(mds->mds_md_name, strlen(mds->mds_md_name) + 1);
- mds->mds_md_name = NULL;
- }
- RETURN(0);
-}
-
-static int mds_precleanup(struct obd_device *obd, int flags)
-{
- int rc = 0;
- ENTRY;
-
- mds_md_clean(obd);
- mds_dt_disconnect(obd, flags);
- mds_dt_clean(obd);
- obd_llog_cleanup(llog_get_context(&obd->obd_llogs, LLOG_CONFIG_ORIG_CTXT));
- RETURN(rc);
-}
-
-extern void lgss_svc_cache_purge_all(void);
-static int mds_cleanup(struct obd_device *obd, int flags)
-{
- struct mds_obd *mds = &obd->u.mds;
- ENTRY;
-
- if (mds->mds_sb == NULL)
- RETURN(0);
-
- mds_update_server_data(obd, 1);
- mds_update_last_fid(obd, NULL, 1);
-
- if (mds->mds_dt_objids != NULL) {
- int size = mds->mds_dt_desc.ld_tgt_count *
- sizeof(obd_id);
- OBD_FREE(mds->mds_dt_objids, size);
- }
- mds_fs_cleanup(obd, flags);
-
- unlock_kernel();
-
- /* 2 seems normal on mds, (may_umount() also expects 2
- fwiw), but we only see 1 at this point in obdfilter. */
- lvfs_umount_fs(mds->mds_lvfs_ctxt);
-
- mds->mds_sb = 0;
-
- ldlm_namespace_free(obd->obd_namespace, flags & OBD_OPT_FORCE);
-
- spin_lock_bh(&obd->obd_processing_task_lock);
- if (obd->obd_recovering) {
- target_cancel_recovery_timer(obd);
- obd->obd_recovering = 0;
- }
- spin_unlock_bh(&obd->obd_processing_task_lock);
-
- lock_kernel();
- fsfilt_put_ops(obd->obd_fsops);
-
-#ifdef ENABLE_GSS
- /* XXX */
- lgss_svc_cache_purge_all();
-#endif
-
- spin_lock(&mds->mds_denylist_lock);
- while (!list_empty( &mds->mds_denylist ) ) {
- deny_sec_t *p_deny_sec = list_entry(mds->mds_denylist.next,
- deny_sec_t, list);
- list_del(&p_deny_sec->list);
- OBD_FREE(p_deny_sec, sizeof(*p_deny_sec));
- }
- spin_unlock(&mds->mds_denylist_lock);
-
- mds_capa_keys_cleanup(obd);
-
- if (mds->mds_capa_hmac)
- crypto_free_tfm(mds->mds_capa_hmac);
- RETURN(0);
-}
-
-static int set_security(const char *value, char **sec)
-{
- if (!strcmp(value, "null"))
- *sec = "null";
- else if (!strcmp(value, "krb5i"))
- *sec = "krb5i";
- else if (!strcmp(value, "krb5p"))
- *sec = "krb5p";
- else {
- CERROR("Unrecognized security flavor %s\n", value);
- return -EINVAL;
- }
-
return 0;
}
-
-static int mds_process_config(struct obd_device *obd, obd_count len, void *buf)
-{
- struct lustre_cfg *lcfg = buf;
- struct mds_obd *mds = &obd->u.mds;
- int rc = 0;
- ENTRY;
-
- switch(lcfg->lcfg_command) {
- case LCFG_SET_SECURITY: {
- if ((LUSTRE_CFG_BUFLEN(lcfg, 1) == 0) ||
- (LUSTRE_CFG_BUFLEN(lcfg, 2) == 0))
- GOTO(out, rc = -EINVAL);
-
- if (!strcmp(lustre_cfg_string(lcfg, 1), "mds_sec"))
- rc = set_security(lustre_cfg_string(lcfg, 2),
- &mds->mds_mds_sec);
- else if (!strcmp(lustre_cfg_string(lcfg, 1), "oss_sec"))
- rc = set_security(lustre_cfg_string(lcfg, 2),
- &mds->mds_ost_sec);
- else if (!strcmp(lustre_cfg_string(lcfg, 1), "deny_sec")){
- spin_lock(&mds->mds_denylist_lock);
- rc = add_deny_security(lustre_cfg_string(lcfg, 2),
- &mds->mds_denylist);
- spin_unlock(&mds->mds_denylist_lock);
- } else {
- CERROR("Unrecognized key\n");
- rc = -EINVAL;
- }
- break;
- }
- default:
- CERROR("Unknown command: %d\n", lcfg->lcfg_command);
- GOTO(out, rc = -EINVAL);
- }
-out:
- RETURN(rc);
-}
-
-static void fixup_handle_for_resent_req(struct ptlrpc_request *req,
- int offset,
- struct ldlm_lock *new_lock,
- struct ldlm_lock **old_lock,
- struct lustre_handle *lockh)
-{
- struct obd_export *exp = req->rq_export;
- struct obd_device *obd = exp->exp_obd;
- struct ldlm_request *dlmreq =
- lustre_msg_buf(req->rq_reqmsg, offset, sizeof (*dlmreq));
- struct lustre_handle remote_hdl = dlmreq->lock_handle1;
- struct list_head *iter;
-
- if (!(lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT))
- return;
-
- spin_lock(&obd->obd_namespace->ns_hash_lock);
- list_for_each(iter, &exp->exp_ldlm_data.led_held_locks) {
- struct ldlm_lock *lock;
- lock = list_entry(iter, struct ldlm_lock, l_export_chain);
- if (lock == new_lock)
- continue;
- if (lock->l_remote_handle.cookie == remote_hdl.cookie) {
- lockh->cookie = lock->l_handle.h_cookie;
- LDLM_DEBUG(lock, "restoring lock cookie");
- DEBUG_REQ(D_HA, req, "restoring lock cookie "LPX64,
- lockh->cookie);
- if (old_lock)
- *old_lock = LDLM_LOCK_GET(lock);
- spin_unlock(&obd->obd_namespace->ns_hash_lock);
- return;
- }
- }
- spin_unlock(&obd->obd_namespace->ns_hash_lock);
-
- /* If the xid matches, then we know this is a resent request,
- * and allow it. (It's probably an OPEN, for which we don't
- * send a lock */
- if (req->rq_xid ==
- le64_to_cpu(exp->exp_mds_data.med_mcd->mcd_last_xid))
- return;
-
- if (req->rq_xid ==
- le64_to_cpu(exp->exp_mds_data.med_mcd->mcd_last_close_xid))
- return;
-
- /* This remote handle isn't enqueued, so we never received or
- * processed this request. Clear MSG_RESENT, because it can
- * be handled like any normal request now. */
-
- lustre_msg_clear_flags(req->rq_reqmsg, MSG_RESENT);
-
- DEBUG_REQ(D_HA, req, "no existing lock with rhandle "LPX64,
- remote_hdl.cookie);
-}
-
-int intent_disposition(struct ldlm_reply *rep, int flag)
-{
- if (!rep)
- return 0;
- return (rep->lock_policy_res1 & flag);
-}
-
-void intent_set_disposition(struct ldlm_reply *rep, int flag)
-{
- if (!rep)
- return;
- rep->lock_policy_res1 |= flag;
-}
-
-static int mds_intent_prepare_reply_buffers(struct ptlrpc_request *req,
- struct ldlm_intent *it)
-{
- struct mds_obd *mds = &req->rq_export->exp_obd->u.mds;
- int rc, reply_buffers;
- int repsize[8] = {sizeof(struct ldlm_reply),
- sizeof(struct mds_body),
- mds->mds_max_mdsize};
- ENTRY;
-
- reply_buffers = 3;
- if (it->opc & ( IT_OPEN | IT_GETATTR | IT_LOOKUP | IT_CHDIR )) {
- /*Ugly here, Actually, we should prepare the reply buffer
- *after we know whether these stuff exist or not, which should
- * be fixed in future, Now each item is in the fix position,
- * the sequence is lsm, acl, crypto ea, capa.*/
- repsize[reply_buffers++] = sizeof(int);
- /* XXX: mds_remote_perm is stored here too, and for it
- * the 'size' is ignored */
- repsize[reply_buffers++] =
- xattr_acl_size(LL_ACL_MAX_ENTRIES);
-
- repsize[reply_buffers++] = sizeof(int);
- repsize[reply_buffers++] = sizeof(struct crypto_key);
-
- /* XXX: if new buffer is to be added, capability reply
- * buffer should always been reserved. */
- if (it->opc & IT_OPEN)
- repsize[reply_buffers++] = sizeof(struct lustre_capa);
- }
-
- rc = lustre_pack_reply(req, reply_buffers, repsize, NULL);
-
- RETURN(rc);
-}
-
-static int mds_intent_policy(struct ldlm_namespace *ns,
- struct ldlm_lock **lockp, void *req_cookie,
- ldlm_mode_t mode, int flags, void *data)
-{
- struct ptlrpc_request *req = req_cookie;
- struct ldlm_lock *lock = *lockp;
- struct ldlm_intent *it;
- struct ldlm_reply *rep;
- struct lustre_handle lockh[2] = {{0}, {0}};
- struct ldlm_lock *new_lock = NULL;
- int getattr_part = MDS_INODELOCK_UPDATE;
- int rc;
-
- int offset = MDS_REQ_INTENT_REC_OFF;
- ENTRY;
-
- LASSERT(req != NULL);
- MD_COUNTER_INCREMENT(req->rq_export->exp_obd, intent_lock);
-
- if (req->rq_reqmsg->bufcount <= MDS_REQ_INTENT_IT_OFF) {
- /* No intent was provided */
- int size = sizeof(struct ldlm_reply);
- rc = lustre_pack_reply(req, 1, &size, NULL);
- LASSERT(rc == 0);
- RETURN(0);
- }
-
- it = lustre_swab_reqbuf(req, MDS_REQ_INTENT_IT_OFF, sizeof(*it),
- lustre_swab_ldlm_intent);
- if (it == NULL) {
- CERROR("Intent missing\n");
- RETURN(req->rq_status = -EFAULT);
- }
-
- LDLM_DEBUG(lock, "intent policy, opc: %s", ldlm_it2str(it->opc));
-
- rc = mds_intent_prepare_reply_buffers(req, it);
-
- if (rc)
- RETURN(req->rq_status = rc);
-
- rep = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*rep));
- LASSERT(rep != NULL);
-
- intent_set_disposition(rep, DISP_IT_EXECD);
-
- /* execute policy */
- switch ((long)it->opc) {
- case IT_OPEN:
- case IT_CREAT|IT_OPEN:
- fixup_handle_for_resent_req(req, MDS_REQ_INTENT_LOCKREQ_OFF,
- lock, NULL, lockh);
- /* XXX swab here to assert that an mds_open reint
- * packet is following */
- fixup_handle_for_resent_req(req, MDS_REQ_INTENT_LOCKREQ_OFF,
- lock, NULL, lockh);
- rep->lock_policy_res2 = mds_reint(req, offset, lockh);
-
- if (rep->lock_policy_res2) {
- /*
- * mds_open() returns ENOLCK where it should return
- * zero, but it has no lock to return.
- */
- if (rep->lock_policy_res2 == ENOLCK)
- rep->lock_policy_res2 = 0;
-
- RETURN(ELDLM_LOCK_ABORTED);
- }
-
- /*
- * IT_OPEN may return lock on cross-node dentry that we want to
- * hold during attr retrival -bzzz
- */
- if (lockh[0].cookie == 0)
- RETURN(ELDLM_LOCK_ABORTED);
-
- break;
- case IT_LOOKUP:
- getattr_part = MDS_INODELOCK_LOOKUP;
- case IT_CHDIR:
- case IT_GETATTR:
- getattr_part |= MDS_INODELOCK_LOOKUP;
- case IT_READDIR:
- fixup_handle_for_resent_req(req, MDS_REQ_INTENT_LOCKREQ_OFF,
- lock, &new_lock, lockh);
- rep->lock_policy_res2 = mds_getattr_lock(req, offset, lockh,
- getattr_part);
- /* FIXME: LDLM can set req->rq_status. MDS sets
- policy_res{1,2} with disposition and status.
- - replay: returns 0 & req->status is old status
- - otherwise: returns req->status */
- if (intent_disposition(rep, DISP_LOOKUP_NEG))
- rep->lock_policy_res2 = 0;
- if (!intent_disposition(rep, DISP_LOOKUP_POS) ||
- rep->lock_policy_res2)
- RETURN(ELDLM_LOCK_ABORTED);
- if (req->rq_status != 0) {
- LBUG();
- rep->lock_policy_res2 = req->rq_status;
- RETURN(ELDLM_LOCK_ABORTED);
- }
- break;
- case IT_UNLINK:
- rc = mds_lock_and_check_slave(offset, req, lockh);
- if ((rep->lock_policy_res2 = rc)) {
- if (rc == ENOLCK)
- rep->lock_policy_res2 = 0;
- RETURN(ELDLM_LOCK_ABORTED);
- }
- break;
- default:
- CERROR("Unhandled intent "LPD64"\n", it->opc);
- LBUG();
- }
-
- /* By this point, whatever function we called above must have either
- * filled in 'lockh', been an intent replay, or returned an error. We
- * want to allow replayed RPCs to not get a lock, since we would just
- * drop it below anyways because lock replay is done separately by the
- * client afterwards. For regular RPCs we want to give the new lock to
- * the client instead of whatever lock it was about to get. */
- if (new_lock == NULL)
- new_lock = ldlm_handle2lock(&lockh[0]);
- if (new_lock == NULL && (flags & LDLM_FL_INTENT_ONLY))
- RETURN(0);
-
- LASSERTF(new_lock != NULL, "op "LPX64" lockh "LPX64"\n",
- it->opc, lockh[0].cookie);
-
- /* If we've already given this lock to a client once, then we should
- * have no readers or writers. Otherwise, we should have one reader
- * _or_ writer ref (which will be zeroed below) before returning the
- * lock to a client. */
- if (new_lock->l_export == req->rq_export) {
- LASSERT(new_lock->l_readers + new_lock->l_writers == 0);
- } else {
- LASSERT(new_lock->l_export == NULL);
- LASSERT(new_lock->l_readers + new_lock->l_writers == 1);
- }
-
- *lockp = new_lock;
-
- if (new_lock->l_export == req->rq_export) {
- /* Already gave this to the client, which means that we
- * reconstructed a reply. */
- LASSERT(lustre_msg_get_flags(req->rq_reqmsg) &
- MSG_RESENT);
- RETURN(ELDLM_LOCK_REPLACED);
- }
-
- /* Fixup the lock to be given to the client */
- lock_res_and_lock(new_lock);
- new_lock->l_readers = 0;
- new_lock->l_writers = 0;
-
- new_lock->l_export = class_export_get(req->rq_export);
-
- spin_lock(&new_lock->l_export->exp_ldlm_data.led_lock);
- list_add(&new_lock->l_export_chain,
- &new_lock->l_export->exp_ldlm_data.led_held_locks);
- spin_unlock(&new_lock->l_export->exp_ldlm_data.led_lock);
-
- new_lock->l_blocking_ast = lock->l_blocking_ast;
- new_lock->l_completion_ast = lock->l_completion_ast;
-
- memcpy(&new_lock->l_remote_handle, &lock->l_remote_handle,
- sizeof(lock->l_remote_handle));
-
- new_lock->l_flags &= ~LDLM_FL_LOCAL;
-
- unlock_res_and_lock(new_lock);
- LDLM_LOCK_PUT(new_lock);
-
- RETURN(ELDLM_LOCK_REPLACED);
-}
-
-int mds_attach(struct obd_device *dev, obd_count len, void *data)
-{
- struct lprocfs_static_vars lvars;
- int rc = 0;
- struct mds_obd *mds = &dev->u.mds;
-
- spin_lock_init(&mds->mds_denylist_lock);
- INIT_LIST_HEAD(&mds->mds_denylist);
-
- lprocfs_init_multi_vars(0, &lvars);
-
- rc = lprocfs_obd_attach(dev, lvars.obd_vars);
- if (rc)
- return rc;
-
- return lprocfs_alloc_md_stats(dev, 0);
-}
-
-int mds_detach(struct obd_device *dev)
-{
- lprocfs_free_md_stats(dev);
- return lprocfs_obd_detach(dev);
-}
-
-int mdt_attach(struct obd_device *dev, obd_count len, void *data)
-{
- struct lprocfs_static_vars lvars;
-
- lprocfs_init_multi_vars(1, &lvars);
- return lprocfs_obd_attach(dev, lvars.obd_vars);
-}
-
-int mdt_detach(struct obd_device *dev)
-{
- return lprocfs_obd_detach(dev);
-}
-
-static int mdt_setup(struct obd_device *obd, obd_count len, void *buf)
-{
- struct mds_obd *mds = &obd->u.mds;
- int rc = 0;
- ENTRY;
-
- mds->mds_service =
- ptlrpc_init_svc(MDS_NBUFS, MDS_BUFSIZE, MDS_MAXREQSIZE,
- MDS_REQUEST_PORTAL, MDC_REPLY_PORTAL,
- MDS_SERVICE_WATCHDOG_TIMEOUT,
- mds_handle, "mds", obd->obd_proc_entry);
-
- if (!mds->mds_service) {
- CERROR("failed to start service\n");
- RETURN(-ENOMEM);
- }
-
- rc = ptlrpc_start_n_threads(obd, mds->mds_service, MDT_NUM_THREADS,
- "ll_mdt");
- if (rc)
- GOTO(err_thread, rc);
-
- mds->mds_setattr_service =
- ptlrpc_init_svc(MDS_NBUFS, MDS_BUFSIZE, MDS_MAXREQSIZE,
- MDS_SETATTR_PORTAL, MDC_REPLY_PORTAL,
- MDS_SERVICE_WATCHDOG_TIMEOUT,
- mds_handle, "mds_setattr",
- obd->obd_proc_entry);
- if (!mds->mds_setattr_service) {
- CERROR("failed to start getattr service\n");
- GOTO(err_thread, rc = -ENOMEM);
- }
-
- rc = ptlrpc_start_n_threads(obd, mds->mds_setattr_service,
- MDT_NUM_THREADS, "ll_mdt_attr");
- if (rc)
- GOTO(err_thread2, rc);
-
- mds->mds_readpage_service =
- ptlrpc_init_svc(MDS_NBUFS, MDS_BUFSIZE, MDS_MAXREQSIZE,
- MDS_READPAGE_PORTAL, MDC_REPLY_PORTAL,
- MDS_SERVICE_WATCHDOG_TIMEOUT,
- mds_handle, "mds_readpage",
- obd->obd_proc_entry);
- if (!mds->mds_readpage_service) {
- CERROR("failed to start readpage service\n");
- GOTO(err_thread2, rc = -ENOMEM);
- }
-
- rc = ptlrpc_start_n_threads(obd, mds->mds_readpage_service,
- MDT_NUM_THREADS, "ll_mdt_rdpg");
-
- if (rc)
- GOTO(err_thread3, rc);
-
- mds->mds_close_service =
- ptlrpc_init_svc(MDS_NBUFS, MDS_BUFSIZE, MDS_MAXREQSIZE,
- MDS_CLOSE_PORTAL, MDC_REPLY_PORTAL,
- MDS_SERVICE_WATCHDOG_TIMEOUT,
- mds_handle, "mds_close",
- obd->obd_proc_entry);
- if (!mds->mds_close_service) {
- CERROR("failed to start close service\n");
- GOTO(err_thread3, rc = -ENOMEM);
- }
-
- rc = ptlrpc_start_n_threads(obd, mds->mds_close_service,
- MDT_NUM_THREADS, "ll_mdt_clos");
-
- if (rc)
- GOTO(err_thread4, rc);
- RETURN(0);
-
-err_thread4:
- ptlrpc_unregister_service(mds->mds_close_service);
-err_thread3:
- ptlrpc_unregister_service(mds->mds_readpage_service);
-err_thread2:
- ptlrpc_unregister_service(mds->mds_setattr_service);
-err_thread:
- ptlrpc_unregister_service(mds->mds_service);
- return rc;
-}
-
-static int mdt_cleanup(struct obd_device *obd, int flags)
-{
- struct mds_obd *mds = &obd->u.mds;
- ENTRY;
-
- ptlrpc_stop_all_threads(mds->mds_close_service);
- ptlrpc_unregister_service(mds->mds_close_service);
-
- ptlrpc_stop_all_threads(mds->mds_readpage_service);
- ptlrpc_unregister_service(mds->mds_readpage_service);
-
- ptlrpc_stop_all_threads(mds->mds_setattr_service);
- ptlrpc_unregister_service(mds->mds_setattr_service);
-
- ptlrpc_stop_all_threads(mds->mds_service);
- ptlrpc_unregister_service(mds->mds_service);
-
- RETURN(0);
-}
-
-static struct dentry *mds_lvfs_id2dentry(__u64 ino, __u32 gen,
- __u64 gr, void *data)
-{
- struct lustre_id id;
- struct obd_device *obd = data;
-
- id_ino(&id) = ino;
- id_gen(&id) = gen;
- return mds_id2dentry(obd, &id, NULL);
-}
-
-static int mds_get_info(struct obd_export *exp, __u32 keylen,
- void *key, __u32 *valsize, void *val)
-{
- struct obd_device *obd;
- struct mds_obd *mds;
- int rc = 0;
- ENTRY;
-
- obd = class_exp2obd(exp);
- mds = &obd->u.mds;
-
- if (obd == NULL) {
- CDEBUG(D_IOCTL, "invalid client cookie "LPX64"\n",
- exp->exp_handle.h_cookie);
- RETURN(-EINVAL);
- }
-
- if (keylen >= strlen("reint_log") && memcmp(key, "reint_log", 9) == 0) {
- /* get log_context handle. */
- struct llog_ctxt *ctxt;
- unsigned long *llh_handle = val;
- *valsize = sizeof(unsigned long);
- ctxt = llog_get_context(&obd->obd_llogs, LLOG_REINT_ORIG_CTXT);
- if (!ctxt) {
- CERROR("Cannot get REINT llog context\n");
- RETURN(-ENOENT);
- }
- *llh_handle = (unsigned long)ctxt;
- RETURN(0);
- }
- if (keylen >= strlen("cache_sb") && memcmp(key, "cache_sb", 8) == 0) {
- /* get log_context handle. */
- unsigned long *sb = val;
- *valsize = sizeof(unsigned long);
- *sb = (unsigned long)obd->u.mds.mds_sb;
- RETURN(0);
- }
-
- if (keylen >= strlen("mdsize") && memcmp(key, "mdsize", keylen) == 0) {
- __u32 *mdsize = val;
- *valsize = sizeof(*mdsize);
- *mdsize = mds->mds_max_mdsize;
- RETURN(0);
- }
-
- if (keylen >= strlen("mdsnum") && strcmp(key, "mdsnum") == 0) {
- __u32 *mdsnum = val;
- *valsize = sizeof(*mdsnum);
- *mdsnum = mds->mds_num;
- RETURN(0);
- }
-
- if (keylen >= strlen("rootid") && strcmp(key, "rootid") == 0) {
- struct lustre_id *rootid = val;
- *valsize = sizeof(*rootid);
- *rootid = mds->mds_rootid;
- RETURN(0);
- }
-
- if (keylen >= strlen("lovdesc") && strcmp(key, "lovdesc") == 0) {
- struct lov_desc *desc = val;
- *valsize = sizeof(*desc);
- *desc = mds->mds_dt_desc;
- RETURN(0);
- }
-
- if (keylen >= strlen("getext") && strcmp(key, "getext") == 0) {
- struct fid_extent *ext = val;
- *valsize = sizeof(*ext);
-
- spin_lock(&mds->mds_fidext_lock);
- ext->fe_width = MDS_FIDEXT_SIZE;
- ext->fe_start = mds->mds_fidext_thumb + 1;
- mds->mds_fidext_thumb += MDS_FIDEXT_SIZE;
- spin_unlock(&mds->mds_fidext_lock);
-
- RETURN(0);
- }
-
- rc = fsfilt_get_info(obd, mds->mds_sb, NULL, keylen, key, valsize, val);
- if (rc)
- CDEBUG(D_IOCTL, "invalid key\n");
-
- RETURN(rc);
-}
-
-struct lvfs_callback_ops mds_lvfs_ops = {
- l_id2dentry: mds_lvfs_id2dentry,
-};
-
-int mds_preprw(int cmd, struct obd_export *exp, struct obdo *oa,
- int objcount, struct obd_ioobj *obj,
- int niocount, struct niobuf_remote *nb,
- struct niobuf_local *res,
- struct obd_trans_info *oti, struct lustre_capa *capa);
-
-int mds_commitrw(int cmd, struct obd_export *exp, struct obdo *oa,
- int objcount, struct obd_ioobj *obj, int niocount,
- struct niobuf_local *res, struct obd_trans_info *oti,
- int rc);
-
-/* use obd ops to offer management infrastructure */
-static struct obd_ops mds_obd_ops = {
+#endif
+static struct obd_ops mds_cmd_obd_ops = {
.o_owner = THIS_MODULE,
- .o_attach = mds_attach,
- .o_detach = mds_detach,
- .o_connect = mds_connect,
- .o_connect_post = mds_connect_post,
- .o_init_export = mds_init_export,
- .o_destroy_export = mds_destroy_export,
- .o_disconnect = mds_disconnect,
- .o_setup = mds_setup,
+ .o_setup = mds_cmd_setup,
+ .o_cleanup = mds_cmd_cleanup,
.o_precleanup = mds_precleanup,
- .o_cleanup = mds_cleanup,
- .o_process_config = mds_process_config,
- .o_postrecov = mds_postrecov,
- .o_statfs = mds_obd_statfs,
- .o_iocontrol = mds_iocontrol,
.o_create = mds_obd_create,
.o_destroy = mds_obd_destroy,
.o_llog_init = mds_llog_init,
.o_llog_finish = mds_llog_finish,
.o_notify = mds_notify,
- .o_get_info = mds_get_info,
- .o_set_info = mds_set_info,
- .o_preprw = mds_preprw,
- .o_commitrw = mds_commitrw,
+ .o_postrecov = mds_postrecov,
+ // .o_health_check = mds_cmd_health_check,
};
-static struct obd_ops mdt_obd_ops = {
- .o_owner = THIS_MODULE,
- .o_attach = mdt_attach,
- .o_detach = mdt_detach,
- .o_setup = mdt_setup,
- .o_cleanup = mdt_cleanup,
-};
+quota_interface_t *mds_quota_interface_ref;
+extern quota_interface_t mds_quota_interface;
-static int __init mds_init(void)
+static int __init mds_cmd_init(void)
{
struct lprocfs_static_vars lvars;
- int rc = 0;
- ENTRY;
-
- mds_init_lsd_cache();
- mds_init_rmtacl_upcall_cache();
-
- lprocfs_init_multi_vars(0, &lvars);
- class_register_type(&mds_obd_ops, NULL, lvars.module_vars,
- OBD_MDS_DEVICENAME);
- lprocfs_init_multi_vars(1, &lvars);
- class_register_type(&mdt_obd_ops, NULL, lvars.module_vars,
- OBD_MDT_DEVICENAME);
+ int rc;
- rc = mds_capa_key_start_thread();
+ cfs_request_module("%s", "lquota");
+ mds_quota_interface_ref = PORTAL_SYMBOL_GET(mds_quota_interface);
+ rc = lquota_init(mds_quota_interface_ref);
if (rc) {
- class_unregister_type(OBD_MDT_DEVICENAME);
- class_unregister_type(OBD_MDS_DEVICENAME);
- mds_cleanup_lsd_cache();
+ if (mds_quota_interface_ref)
+ PORTAL_SYMBOL_PUT(mds_quota_interface);
+ return rc;
}
-
- mds_eck_timer.function = mds_capa_key_timer_callback;
- mds_eck_timer.data = 0;
- init_timer(&mds_eck_timer);
+ init_obd_quota_ops(mds_quota_interface_ref, &mds_cmd_obd_ops);
- RETURN(rc);
+ lprocfs_mds_init_vars(&lvars);
+ class_register_type(&mds_cmd_obd_ops, NULL, lvars.module_vars,
+ LUSTRE_MDS_NAME, NULL);
+
+ return 0;
}
-static void /*__exit*/ mds_exit(void)
+static void /*__exit*/ mds_cmd_exit(void)
{
- mds_capa_key_stop_thread();
- mds_cleanup_rmtacl_upcall_cache();
- mds_cleanup_lsd_cache();
+ lquota_exit(mds_quota_interface_ref);
+ if (mds_quota_interface_ref)
+ PORTAL_SYMBOL_PUT(mds_quota_interface);
- class_unregister_type(OBD_MDS_DEVICENAME);
- class_unregister_type(OBD_MDT_DEVICENAME);
+ class_unregister_type(LUSTRE_MDS_NAME);
}
-MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
+EXPORT_SYMBOL(mds_quota_interface_ref);
+MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
MODULE_DESCRIPTION("Lustre Metadata Server (MDS)");
MODULE_LICENSE("GPL");
-module_init(mds_init);
-module_exit(mds_exit);
+module_init(mds_cmd_init);
+module_exit(mds_cmd_exit);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff