/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * mds/mds_fs.c
- * Lustre Metadata Server (MDS) filesystem interface code
+ * GPL HEADER START
*
- * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
- * Author: Andreas Dilger <adilger@clusterfs.com>
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of the Lustre file system, http://www.lustre.org
- * Lustre is a trademark of Cluster File Systems, Inc.
+ * 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.
*
- * You may have signed or agreed to another license before downloading
- * this software. If so, you are bound by the terms and conditions
- * of that agreement, and the following does not apply to you. See the
- * LICENSE file included with this distribution for more information.
+ * 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).
*
- * If you did not agree to a different license, then this copy of Lustre
- * is open source software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
+ * 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
*
- * In either case, Lustre is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * license text for more details.
+ * 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 2008 Sun Microsystems, Inc. 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/mds_fs.c
+ *
+ * Lustre Metadata Server (MDS) filesystem interface code
+ *
+ * Author: Andreas Dilger <adilger@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDS
#include <linux/module.h>
#include <linux/kmod.h>
#include <linux/version.h>
#include <linux/sched.h>
-#include <lustre_quota.h>
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
#include <linux/mount.h>
-#endif
#include <lustre_mds.h>
#include <obd_class.h>
#include <obd_support.h>
#include "mds_internal.h"
-static int mds_export_stats_init(struct obd_device *obd, struct obd_export *exp)
-{
- int rc, num_stats;
-
- rc = lprocfs_exp_setup(exp);
- if (rc)
- return rc;
- num_stats = (sizeof(*obd->obd_type->typ_dt_ops) / sizeof(void *)) +
- LPROC_MDS_LAST - 1;
- exp->exp_ops_stats = lprocfs_alloc_stats(num_stats);
- if (exp->exp_ops_stats == NULL)
- return -ENOMEM;
- lprocfs_init_ops_stats(LPROC_MDS_LAST, exp->exp_ops_stats);
- mds_stats_counter_init(exp->exp_ops_stats);
- lprocfs_register_stats(exp->exp_proc, "stats", exp->exp_ops_stats);
- return 0;
-}
-
-/* Add client data to the MDS. We use a bitmap to locate a free space
- * in the last_rcvd file if cl_off is -1 (i.e. a new client).
- * Otherwise, we have just read the data from the last_rcvd file and
- * we know its offset.
- *
- * It should not be possible to fail adding an existing client - otherwise
- * mds_init_server_data() callsite needs to be fixed.
- */
-int mds_client_add(struct obd_device *obd, struct obd_export *exp,
- int cl_idx)
-{
- struct mds_obd *mds = &obd->u.mds;
- struct mds_export_data *med = &exp->exp_mds_data;
- unsigned long *bitmap = mds->mds_client_bitmap;
- int new_client = (cl_idx == -1);
- ENTRY;
-
- LASSERT(bitmap != NULL);
- LASSERTF(cl_idx > -2, "%d\n", cl_idx);
-
- /* XXX if mcd_uuid were a real obd_uuid, I could use obd_uuid_equals */
- if (!strcmp(med->med_mcd->mcd_uuid, obd->obd_uuid.uuid))
- RETURN(0);
-
- /* the bitmap operations can handle cl_idx > sizeof(long) * 8, so
- * there's no need for extra complication here
- */
- if (new_client) {
- cl_idx = find_first_zero_bit(bitmap, LR_MAX_CLIENTS);
- repeat:
- if (cl_idx >= LR_MAX_CLIENTS ||
- OBD_FAIL_CHECK_ONCE(OBD_FAIL_MDS_CLIENT_ADD)) {
- CERROR("no room for %u client - fix LR_MAX_CLIENTS\n",
- cl_idx);
- return -EOVERFLOW;
- }
- if (test_and_set_bit(cl_idx, bitmap)) {
- cl_idx = find_next_zero_bit(bitmap, LR_MAX_CLIENTS,
- cl_idx);
- goto repeat;
- }
- } else {
- if (test_and_set_bit(cl_idx, bitmap)) {
- CERROR("MDS client %d: bit already set in bitmap!!\n",
- cl_idx);
- LBUG();
- }
- }
-
- CDEBUG(D_INFO, "client at idx %d with UUID '%s' added\n",
- cl_idx, med->med_mcd->mcd_uuid);
-
- med->med_lr_idx = cl_idx;
- med->med_lr_off = le32_to_cpu(mds->mds_server_data->lsd_client_start) +
- (cl_idx * le16_to_cpu(mds->mds_server_data->lsd_client_size));
- LASSERTF(med->med_lr_off > 0, "med_lr_off = %llu\n", med->med_lr_off);
- mds_export_stats_init(obd, exp);
-
- if (new_client) {
- struct lvfs_run_ctxt saved;
- loff_t off = med->med_lr_off;
- struct file *file = mds->mds_rcvd_filp;
- void *handle;
- int rc;
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- handle = fsfilt_start(obd, file->f_dentry->d_inode,
- FSFILT_OP_SETATTR, NULL);
- if (IS_ERR(handle)) {
- rc = PTR_ERR(handle);
- CERROR("unable to start transaction: rc %d\n", rc);
- } else {
- rc = fsfilt_add_journal_cb(obd, 0, handle,
- target_client_add_cb, exp);
- if (rc == 0) {
- spin_lock(&exp->exp_lock);
- exp->exp_need_sync = 1;
- spin_unlock(&exp->exp_lock);
- }
- rc = fsfilt_write_record(obd, file, med->med_mcd,
- sizeof(*med->med_mcd),
- &off, rc /* sync if no cb */);
- fsfilt_commit(obd, file->f_dentry->d_inode, handle, 0);
- }
-
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- if (rc)
- return rc;
- CDEBUG(D_INFO, "wrote client mcd at idx %u off %llu (len %u)\n",
- med->med_lr_idx, med->med_lr_off,
- (unsigned int)sizeof(*med->med_mcd));
- }
- return 0;
-}
-
-int mds_client_free(struct obd_export *exp)
-{
- struct mds_export_data *med = &exp->exp_mds_data;
- struct mds_obd *mds = &exp->exp_obd->u.mds;
- struct obd_device *obd = exp->exp_obd;
- struct mds_client_data zero_mcd;
- struct lvfs_run_ctxt saved;
- int rc;
- loff_t off;
- ENTRY;
-
- if (!med->med_mcd)
- RETURN(0);
-
- /* XXX if mcd_uuid were a real obd_uuid, I could use obd_uuid_equals */
- if (!strcmp(med->med_mcd->mcd_uuid, obd->obd_uuid.uuid))
- GOTO(free, 0);
-
- CDEBUG(D_INFO, "freeing client at idx %u, offset %lld with UUID '%s'\n",
- med->med_lr_idx, med->med_lr_off, med->med_mcd->mcd_uuid);
-
- LASSERT(mds->mds_client_bitmap != NULL);
-
- lprocfs_exp_cleanup(exp);
-
- off = med->med_lr_off;
-
- /* Don't clear med_lr_idx here as it is likely also unset. At worst
- * we leak a client slot that will be cleaned on the next recovery. */
- if (off <= 0) {
- CERROR("%s: client idx %d has offset %lld\n",
- obd->obd_name, med->med_lr_idx, off);
- GOTO(free, rc = -EINVAL);
- }
-
- /* Clear the bit _after_ zeroing out the client so we don't
- race with mds_client_add and zero out new clients.*/
- if (!test_bit(med->med_lr_idx, mds->mds_client_bitmap)) {
- CERROR("MDS client %u: bit already clear in bitmap!!\n",
- med->med_lr_idx);
- LBUG();
- }
-
- if (!(exp->exp_flags & OBD_OPT_FAILOVER)) {
- memset(&zero_mcd, 0, sizeof zero_mcd);
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- rc = fsfilt_write_record(obd, mds->mds_rcvd_filp, &zero_mcd,
- sizeof(zero_mcd), &off,
- (!exp->exp_libclient ||
- exp->exp_need_sync));
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- CDEBUG(rc == 0 ? D_INFO : D_ERROR,
- "zeroing out client %s idx %u in %s rc %d\n",
- med->med_mcd->mcd_uuid, med->med_lr_idx, LAST_RCVD, rc);
- }
-
- if (!test_and_clear_bit(med->med_lr_idx, mds->mds_client_bitmap)) {
- CERROR("MDS client %u: bit already clear in bitmap!!\n",
- med->med_lr_idx);
- LBUG();
- }
-
-
- /* Make sure the server's last_transno is up to date. Do this
- * after the client is freed so we know all the client's
- * transactions have been committed. */
- mds_update_server_data(exp->exp_obd, 0);
-
- EXIT;
- free:
- OBD_FREE(med->med_mcd, sizeof(*med->med_mcd));
- med->med_mcd = NULL;
-
- return 0;
-}
-
-static int mds_server_free_data(struct mds_obd *mds)
-{
- OBD_FREE(mds->mds_client_bitmap, LR_MAX_CLIENTS / 8);
- OBD_FREE(mds->mds_server_data, sizeof(*mds->mds_server_data));
- mds->mds_server_data = NULL;
-
- return 0;
-}
-
-static int mds_init_server_data(struct obd_device *obd, struct file *file)
-{
- struct mds_obd *mds = &obd->u.mds;
- struct lr_server_data *lsd;
- struct mds_client_data *mcd = NULL;
- loff_t off = 0;
- unsigned long last_rcvd_size = i_size_read(file->f_dentry->d_inode);
- __u64 mount_count;
- int cl_idx, rc = 0;
- ENTRY;
-
- /* ensure padding in the struct is the correct size */
- LASSERT(offsetof(struct lr_server_data, lsd_padding) +
- sizeof(lsd->lsd_padding) == LR_SERVER_SIZE);
- LASSERT(offsetof(struct mds_client_data, mcd_padding) +
- sizeof(mcd->mcd_padding) == LR_CLIENT_SIZE);
-
- OBD_ALLOC_WAIT(lsd, sizeof(*lsd));
- if (!lsd)
- RETURN(-ENOMEM);
-
- OBD_ALLOC_WAIT(mds->mds_client_bitmap, LR_MAX_CLIENTS / 8);
- if (!mds->mds_client_bitmap) {
- OBD_FREE(lsd, sizeof(*lsd));
- RETURN(-ENOMEM);
- }
-
- mds->mds_server_data = lsd;
-
- if (last_rcvd_size == 0) {
- LCONSOLE_WARN("%s: new disk, initializing\n", obd->obd_name);
-
- memcpy(lsd->lsd_uuid, obd->obd_uuid.uuid,sizeof(lsd->lsd_uuid));
- lsd->lsd_last_transno = 0;
- mount_count = lsd->lsd_mount_count = 0;
- lsd->lsd_server_size = cpu_to_le32(LR_SERVER_SIZE);
- lsd->lsd_client_start = cpu_to_le32(LR_CLIENT_START);
- lsd->lsd_client_size = cpu_to_le16(LR_CLIENT_SIZE);
- lsd->lsd_feature_rocompat = cpu_to_le32(OBD_ROCOMPAT_LOVOBJID);
- lsd->lsd_feature_incompat = cpu_to_le32(OBD_INCOMPAT_MDT);
- } else {
- rc = fsfilt_read_record(obd, file, lsd, sizeof(*lsd), &off);
- if (rc) {
- CERROR("error reading MDS %s: rc %d\n", LAST_RCVD, rc);
- GOTO(err_msd, rc);
- }
- if (strcmp(lsd->lsd_uuid, obd->obd_uuid.uuid) != 0) {
- LCONSOLE_ERROR_MSG(0x157, "Trying to start OBD %s "
- "using the wrong disk %s. Were the "
- "/dev/ assignments rearranged?\n",
- obd->obd_uuid.uuid, lsd->lsd_uuid);
- GOTO(err_msd, rc = -EINVAL);
- }
- mount_count = le64_to_cpu(lsd->lsd_mount_count);
- }
-
- if (lsd->lsd_feature_incompat & ~cpu_to_le32(MDT_INCOMPAT_SUPP)) {
- CERROR("%s: unsupported incompat filesystem feature(s) %x\n",
- obd->obd_name, le32_to_cpu(lsd->lsd_feature_incompat) &
- ~MDT_INCOMPAT_SUPP);
- GOTO(err_msd, rc = -EINVAL);
- }
- if (lsd->lsd_feature_rocompat & ~cpu_to_le32(MDT_ROCOMPAT_SUPP)) {
- CERROR("%s: unsupported read-only filesystem feature(s) %x\n",
- obd->obd_name, le32_to_cpu(lsd->lsd_feature_rocompat) &
- ~MDT_ROCOMPAT_SUPP);
- /* Do something like remount filesystem read-only */
- GOTO(err_msd, rc = -EINVAL);
- }
-
- lsd->lsd_feature_compat = cpu_to_le32(OBD_COMPAT_MDT);
-
- mds->mds_last_transno = le64_to_cpu(lsd->lsd_last_transno);
-
- CDEBUG(D_INODE, "%s: server last_transno: "LPU64"\n",
- obd->obd_name, mds->mds_last_transno);
- CDEBUG(D_INODE, "%s: server mount_count: "LPU64"\n",
- obd->obd_name, mount_count + 1);
- CDEBUG(D_INODE, "%s: server data size: %u\n",
- obd->obd_name, le32_to_cpu(lsd->lsd_server_size));
- CDEBUG(D_INODE, "%s: per-client data start: %u\n",
- obd->obd_name, le32_to_cpu(lsd->lsd_client_start));
- CDEBUG(D_INODE, "%s: per-client data size: %u\n",
- obd->obd_name, le32_to_cpu(lsd->lsd_client_size));
- CDEBUG(D_INODE, "%s: last_rcvd size: %lu\n",
- obd->obd_name, last_rcvd_size);
- CDEBUG(D_INODE, "%s: last_rcvd clients: %lu\n", obd->obd_name,
- last_rcvd_size <= le32_to_cpu(lsd->lsd_client_start) ? 0 :
- (last_rcvd_size - le32_to_cpu(lsd->lsd_client_start)) /
- le16_to_cpu(lsd->lsd_client_size));
-
- if (!lsd->lsd_server_size || !lsd->lsd_client_start ||
- !lsd->lsd_client_size) {
- CERROR("Bad last_rcvd contents!\n");
- GOTO(err_msd, rc = -EINVAL);
- }
-
- /* When we do a clean MDS shutdown, we save the last_transno into
- * the header. If we find clients with higher last_transno values
- * then those clients may need recovery done. */
- for (cl_idx = 0, off = le32_to_cpu(lsd->lsd_client_start);
- off < last_rcvd_size; cl_idx++) {
- __u64 last_transno;
- struct obd_export *exp;
- struct mds_export_data *med;
-
- if (!mcd) {
- OBD_ALLOC_WAIT(mcd, sizeof(*mcd));
- if (!mcd)
- GOTO(err_client, rc = -ENOMEM);
- }
-
- /* Don't assume off is incremented properly by
- * fsfilt_read_record(), in case sizeof(*mcd)
- * isn't the same as lsd->lsd_client_size. */
- off = le32_to_cpu(lsd->lsd_client_start) +
- cl_idx * le16_to_cpu(lsd->lsd_client_size);
- rc = fsfilt_read_record(obd, file, mcd, sizeof(*mcd), &off);
- if (rc) {
- CERROR("error reading MDS %s idx %d, off %llu: rc %d\n",
- LAST_RCVD, cl_idx, off, rc);
- break; /* read error shouldn't cause startup to fail */
- }
-
- if (mcd->mcd_uuid[0] == '\0') {
- CDEBUG(D_INFO, "skipping zeroed client at offset %d\n",
- cl_idx);
- continue;
- }
-
- last_transno = le64_to_cpu(mcd->mcd_last_transno) >
- le64_to_cpu(mcd->mcd_last_close_transno) ?
- le64_to_cpu(mcd->mcd_last_transno) :
- le64_to_cpu(mcd->mcd_last_close_transno);
-
- /* These exports are cleaned up by mds_disconnect(), so they
- * need to be set up like real exports as mds_connect() does.
- */
- CDEBUG(D_HA, "RCVRNG CLIENT uuid: %s idx: %d lr: "LPU64
- " srv lr: "LPU64" lx: "LPU64"\n", mcd->mcd_uuid, cl_idx,
- last_transno, le64_to_cpu(lsd->lsd_last_transno),
- le64_to_cpu(mcd->mcd_last_xid));
-
- exp = class_new_export(obd, (struct obd_uuid *)mcd->mcd_uuid);
- if (IS_ERR(exp)) {
- if (PTR_ERR(exp) == -EALREADY) {
- /* export already exists, zero out this one */
- mcd->mcd_uuid[0] = '\0';
- } else {
- GOTO(err_client, rc = PTR_ERR(exp));
- }
- } else {
- med = &exp->exp_mds_data;
- med->med_mcd = mcd;
- rc = mds_client_add(obd, exp, cl_idx);
- LASSERTF(rc == 0, "rc = %d\n", rc); /* can't fail existing */
-
- mcd = NULL;
- spin_lock(&exp->exp_lock);
- exp->exp_req_replay_needed = 1;
- exp->exp_connecting = 0;
- spin_unlock(&exp->exp_lock);
- obd->obd_max_recoverable_clients++;
- class_export_put(exp);
- }
- /* Need to check last_rcvd even for duplicated exports. */
- CDEBUG(D_OTHER, "client at idx %d has last_transno = "LPU64"\n",
- cl_idx, last_transno);
-
- if (last_transno > mds->mds_last_transno)
- mds->mds_last_transno = last_transno;
- }
-
- if (mcd)
- OBD_FREE(mcd, sizeof(*mcd));
-
- obd->obd_last_committed = mds->mds_last_transno;
-
- if (obd->obd_max_recoverable_clients) {
- /* shouldn't happen in b_new_cmd */
- LBUG();
- CWARN("RECOVERY: service %s, %d recoverable clients, "
- "last_transno "LPU64"\n", obd->obd_name,
- obd->obd_max_recoverable_clients, mds->mds_last_transno);
- obd->obd_next_recovery_transno = obd->obd_last_committed + 1;
- obd->obd_recovering = 1;
- obd->obd_recovery_start = CURRENT_SECONDS;
- /* Only used for lprocfs_status */
- obd->obd_recovery_end = obd->obd_recovery_start +
- OBD_RECOVERY_TIMEOUT;
- }
-
- mds->mds_mount_count = mount_count + 1;
- lsd->lsd_mount_count = lsd->lsd_compat14 =
- cpu_to_le64(mds->mds_mount_count);
-
- /* save it, so mount count and last_transno is current */
- rc = mds_update_server_data(obd, 1);
- if (rc)
- GOTO(err_client, rc);
-
- RETURN(0);
-
-err_client:
- class_disconnect_exports(obd);
-err_msd:
- mds_server_free_data(mds);
- RETURN(rc);
-}
-
-void mds_init_ctxt(struct obd_device *obd, struct vfsmount *mnt)
-{
- struct mds_obd *mds = &obd->u.mds;
-
- mds->mds_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;
-
- fsfilt_setup(obd, obd->u.obt.obt_sb);
-
- 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_fs_setup(struct obd_device *obd, struct vfsmount *mnt)
-{
- struct mds_obd *mds = &obd->u.mds;
- struct lvfs_run_ctxt saved;
- struct dentry *dentry;
- struct file *file;
- int rc;
- ENTRY;
-
- OBD_FAIL_RETURN(OBD_FAIL_MDS_FS_SETUP, -ENOENT);
-
- rc = cleanup_group_info();
- if (rc)
- RETURN(rc);
-
- mds_init_ctxt(obd, mnt);
-
- /* setup the directory tree */
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- dentry = simple_mkdir(current->fs->pwd, "ROOT", 0755, 0);
- if (IS_ERR(dentry)) {
- rc = PTR_ERR(dentry);
- CERROR("cannot create ROOT directory: rc = %d\n", rc);
- GOTO(err_pop, rc);
- }
-
- mds->mds_rootfid.id = dentry->d_inode->i_ino;
- mds->mds_rootfid.generation = dentry->d_inode->i_generation;
- mds->mds_rootfid.f_type = S_IFDIR;
-
- dput(dentry);
-
- dentry = lookup_one_len("__iopen__", current->fs->pwd,
- strlen("__iopen__"));
- if (IS_ERR(dentry)) {
- rc = PTR_ERR(dentry);
- CERROR("cannot lookup __iopen__ directory: rc = %d\n", rc);
- GOTO(err_pop, rc);
- }
-
- 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);
- }
-
- dentry = simple_mkdir(current->fs->pwd, "PENDING", 0777, 1);
- if (IS_ERR(dentry)) {
- rc = PTR_ERR(dentry);
- CERROR("cannot create PENDING directory: rc = %d\n", rc);
- GOTO(err_fid, rc);
- }
- mds->mds_pending_dir = dentry;
-
- /* COMPAT_146 */
- dentry = simple_mkdir(current->fs->pwd, MDT_LOGS_DIR, 0777, 1);
- if (IS_ERR(dentry)) {
- rc = PTR_ERR(dentry);
- CERROR("cannot create %s directory: rc = %d\n",
- MDT_LOGS_DIR, rc);
- GOTO(err_pending, rc);
- }
- mds->mds_logs_dir = dentry;
- /* end COMPAT_146 */
-
- dentry = simple_mkdir(current->fs->pwd, "OBJECTS", 0777, 1);
- if (IS_ERR(dentry)) {
- rc = PTR_ERR(dentry);
- CERROR("cannot create OBJECTS directory: rc = %d\n", rc);
- GOTO(err_logs, rc);
- }
- mds->mds_objects_dir = dentry;
-
- /* open and test the last rcvd file */
- file = filp_open(LAST_RCVD, O_RDWR | O_CREAT, 0644);
- if (IS_ERR(file)) {
- rc = PTR_ERR(file);
- CERROR("cannot open/create %s file: rc = %d\n", LAST_RCVD, rc);
- GOTO(err_objects, rc = PTR_ERR(file));
- }
- mds->mds_rcvd_filp = file;
- if (!S_ISREG(file->f_dentry->d_inode->i_mode)) {
- CERROR("%s is not a regular file!: mode = %o\n", LAST_RCVD,
- file->f_dentry->d_inode->i_mode);
- GOTO(err_last_rcvd, rc = -ENOENT);
- }
-
- rc = mds_init_server_data(obd, file);
- if (rc) {
- CERROR("cannot read %s: rc = %d\n", LAST_RCVD, rc);
- GOTO(err_last_rcvd, rc);
- }
-
- /* open and test the lov objd file */
- file = filp_open(LOV_OBJID, O_RDWR | O_CREAT, 0644);
- if (IS_ERR(file)) {
- rc = PTR_ERR(file);
- CERROR("cannot open/create %s file: rc = %d\n", LOV_OBJID, rc);
- GOTO(err_client, rc = PTR_ERR(file));
- }
- mds->mds_lov_objid_filp = file;
- if (!S_ISREG(file->f_dentry->d_inode->i_mode)) {
- CERROR("%s is not a regular file!: mode = %o\n", LOV_OBJID,
- file->f_dentry->d_inode->i_mode);
- GOTO(err_lov_objid, rc = -ENOENT);
- }
-
- /* open and test the check io file junk */
- file = filp_open(HEALTH_CHECK, O_RDWR | O_CREAT, 0644);
- if (IS_ERR(file)) {
- rc = PTR_ERR(file);
- CERROR("cannot open/create %s file: rc = %d\n", HEALTH_CHECK,
- rc);
- GOTO(err_lov_objid, rc = PTR_ERR(file));
- }
- mds->mds_health_check_filp = file;
- if (!S_ISREG(file->f_dentry->d_inode->i_mode)) {
- CERROR("%s is not a regular file!: mode = %o\n", HEALTH_CHECK,
- file->f_dentry->d_inode->i_mode);
- GOTO(err_health_check, rc = -ENOENT);
- }
- rc = lvfs_check_io_health(obd, file);
- if (rc)
- GOTO(err_health_check, rc);
-err_pop:
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- return rc;
-
-err_health_check:
- if (mds->mds_health_check_filp &&
- filp_close(mds->mds_health_check_filp, 0))
- CERROR("can't close %s after error\n", HEALTH_CHECK);
-err_lov_objid:
- if (mds->mds_lov_objid_filp &&
- filp_close((struct file *)mds->mds_lov_objid_filp, 0))
- CERROR("can't close %s after error\n", LOV_OBJID);
-err_client:
- class_disconnect_exports(obd);
-err_last_rcvd:
- if (mds->mds_rcvd_filp && filp_close(mds->mds_rcvd_filp, 0))
- CERROR("can't close %s after error\n", LAST_RCVD);
-err_objects:
- dput(mds->mds_objects_dir);
-err_logs:
- dput(mds->mds_logs_dir);
-err_pending:
- dput(mds->mds_pending_dir);
-err_fid:
- dput(mds->mds_fid_de);
- goto err_pop;
-}
-
-
-int mds_fs_cleanup(struct obd_device *obd)
-{
- struct mds_obd *mds = &obd->u.mds;
- struct lvfs_run_ctxt saved;
- int rc = 0;
-
- if (obd->obd_fail)
- LCONSOLE_WARN("%s: shutting down for failover; client state "
- "will be preserved.\n", obd->obd_name);
-
- class_disconnect_exports(obd); /* cleans up client info too */
- mds_server_free_data(mds);
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- if (mds->mds_rcvd_filp) {
- rc = filp_close(mds->mds_rcvd_filp, 0);
- mds->mds_rcvd_filp = NULL;
- if (rc)
- CERROR("%s file won't close, rc=%d\n", LAST_RCVD, rc);
- }
- if (mds->mds_lov_objid_filp) {
- rc = filp_close((struct file *)mds->mds_lov_objid_filp, 0);
- mds->mds_lov_objid_filp = NULL;
- if (rc)
- CERROR("%s file won't close, rc=%d\n", LOV_OBJID, rc);
- }
- if (mds->mds_health_check_filp) {
- rc = filp_close(mds->mds_health_check_filp, 0);
- mds->mds_health_check_filp = NULL;
- if (rc)
- CERROR("%s file won't close, rc=%d\n", HEALTH_CHECK,
- rc);
- }
- if (mds->mds_objects_dir != NULL) {
- l_dput(mds->mds_objects_dir);
- mds->mds_objects_dir = NULL;
- }
- if (mds->mds_logs_dir) {
- l_dput(mds->mds_logs_dir);
- mds->mds_logs_dir = NULL;
- }
- if (mds->mds_pending_dir) {
- l_dput(mds->mds_pending_dir);
- mds->mds_pending_dir = NULL;
- }
-
- lquota_fs_cleanup(mds_quota_interface_ref, obd);
-
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- shrink_dcache_parent(mds->mds_fid_de);
- dput(mds->mds_fid_de);
- LL_DQUOT_OFF(obd->u.obt.obt_sb);
-
- return rc;
-}
-
/* Creates an object with the same name as its fid. Because this is not at all
* performance sensitive, it is accomplished by creating a file, checking the
* fid, and renaming it. */
strlen(MDD_OBD_NAME))) {
RETURN(0);
}
-
+
push_ctxt(&saved, &exp->exp_obd->obd_lvfs_ctxt, &ucred);
sprintf(fidname, "OBJECTS/%u.%u", tmpname, current->pid);
oa->o_generation = filp->f_dentry->d_inode->i_generation;
namelen = ll_fid2str(fidname, oa->o_id, oa->o_generation);
- LOCK_INODE_MUTEX(parent_inode);
+ LOCK_INODE_MUTEX_PARENT(parent_inode);
new_child = lookup_one_len(fidname, mds->mds_objects_dir, namelen);
if (IS_ERR(new_child)) {
GOTO(out_dput, rc = PTR_ERR(handle));
lock_kernel();
- rc = vfs_rename(mds->mds_objects_dir->d_inode, filp->f_dentry,
- mds->mds_objects_dir->d_inode, new_child);
+ rc = ll_vfs_rename(mds->mds_objects_dir->d_inode, filp->f_dentry,
+ filp->f_vfsmnt, mds->mds_objects_dir->d_inode,
+ new_child, filp->f_vfsmnt);
unlock_kernel();
if (rc)
CERROR("error renaming new object "LPU64":%u: rc %d\n",
err = fsfilt_commit(exp->exp_obd, mds->mds_objects_dir->d_inode,
handle, 0);
if (!err) {
- oa->o_gr = FILTER_GROUP_MDS0 + mds->mds_id;
+ oa->o_gr = mdt_to_obd_objgrp(mds->mds_id);
oa->o_valid |= OBD_MD_FLID | OBD_MD_FLGENER | OBD_MD_FLGROUP;
} else if (!rc)
rc = err;
int mds_obd_destroy(struct obd_export *exp, struct obdo *oa,
struct lov_stripe_md *ea, struct obd_trans_info *oti,
- struct obd_export *md_exp)
+ struct obd_export *md_exp, void *capa)
{
struct mds_obd *mds = &exp->exp_obd->u.mds;
struct inode *parent_inode = mds->mds_objects_dir->d_inode;
namelen = ll_fid2str(fidname, oa->o_id, oa->o_generation);
- LOCK_INODE_MUTEX(parent_inode);
+ LOCK_INODE_MUTEX_PARENT(parent_inode);
de = lookup_one_len(fidname, mds->mds_objects_dir, namelen);
if (IS_ERR(de)) {
rc = IS_ERR(de);
vfs_unlink() context. bug 10409 */
inode = de->d_inode;
atomic_inc(&inode->i_count);
- rc = vfs_unlink(mds->mds_objects_dir->d_inode, de);
+ rc = ll_vfs_unlink(mds->mds_objects_dir->d_inode, de, mds->mds_vfsmnt);
if (rc)
CERROR("error destroying object "LPU64":%u: rc %d\n",
oa->o_id, oa->o_generation, rc);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff