/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * * Lustre Light Super operations * * Copyright (c) 2002, 2003 Cluster File Systems, Inc. * * This file is part of Lustre, http://www.lustre.org. * * 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. * * 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 * along with Lustre; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #define DEBUG_SUBSYSTEM S_LLITE #include #include #include #include #include #include #include #include #include #include "llite_internal.h" kmem_cache_t *ll_file_data_slab; kmem_cache_t *ll_intent_slab; extern struct address_space_operations ll_aops; extern struct address_space_operations ll_dir_aops; #ifndef log2 #define log2(n) ffz(~(n)) #endif struct ll_sb_info *lustre_init_sbi(struct super_block *sb) { struct ll_sb_info *sbi = NULL; class_uuid_t uuid; ENTRY; OBD_ALLOC(sbi, sizeof(*sbi)); if (!sbi) RETURN(NULL); spin_lock_init(&sbi->ll_lock); INIT_LIST_HEAD(&sbi->ll_pglist); sbi->ll_pglist_gen = 0; if (num_physpages < SBI_DEFAULT_RA_MAX / 4) sbi->ll_ra_info.ra_max_pages = num_physpages / 4; else sbi->ll_ra_info.ra_max_pages = SBI_DEFAULT_RA_MAX; INIT_LIST_HEAD(&sbi->ll_conn_chain); INIT_HLIST_HEAD(&sbi->ll_orphan_dentry_list); INIT_LIST_HEAD(&sbi->ll_mnt_list); sema_init(&sbi->ll_gns_sem, 1); spin_lock_init(&sbi->ll_gns_lock); INIT_LIST_HEAD(&sbi->ll_gns_sbi_head); init_waitqueue_head(&sbi->ll_gns_waitq); init_completion(&sbi->ll_gns_mount_finished); /* this later may be reset via /proc/fs/... */ memcpy(sbi->ll_gns_oname, ".mntinfo", strlen(".mntinfo")); sbi->ll_gns_oname[strlen(sbi->ll_gns_oname)] = '\0'; /* this later may be reset via /proc/fs/... */ memcpy(sbi->ll_gns_upcall, "/usr/sbin/gns_upcall", strlen("/usr/sbin/gns_upcall")); sbi->ll_gns_upcall[strlen(sbi->ll_gns_upcall)] = '\0'; /* default values, may be changed via /proc/fs/... */ sbi->ll_gns_state = LL_GNS_IDLE; sbi->ll_gns_pending_dentry = NULL; atomic_set(&sbi->ll_gns_enabled, 1); sbi->ll_gns_tick = GNS_TICK_TIMEOUT; sbi->ll_gns_timeout = GNS_MOUNT_TIMEOUT; sbi->ll_gns_timer.data = (unsigned long)sbi; sbi->ll_gns_timer.function = ll_gns_timer_callback; init_timer(&sbi->ll_gns_timer); ll_set_sbi(sb, sbi); generate_random_uuid(uuid); class_uuid_unparse(uuid, &sbi->ll_sb_uuid); RETURN(sbi); } void lustre_free_sbi(struct super_block *sb) { struct ll_sb_info *sbi = ll_s2sbi(sb); ENTRY; if (sbi != NULL) { list_del(&sbi->ll_gns_sbi_head); del_timer(&sbi->ll_gns_timer); OBD_FREE(sbi, sizeof(*sbi)); } ll_set_sbi(sb, NULL); EXIT; } int lustre_init_dt_desc(struct ll_sb_info *sbi) { __u32 valsize; int rc = 0; ENTRY; valsize = sizeof(sbi->ll_dt_desc); memset(&sbi->ll_dt_desc, 0, sizeof(sbi->ll_dt_desc)); rc = obd_get_info(sbi->ll_dt_exp, strlen("lovdesc") + 1, "lovdesc", &valsize, &sbi->ll_dt_desc); RETURN(rc); } extern struct dentry_operations ll_d_ops; int lustre_common_fill_super(struct super_block *sb, char *lmv, char *lov, int async, char *security, __u32 *nllu, __u64 *remote) { struct ll_sb_info *sbi = ll_s2sbi(sb); struct ptlrpc_request *request = NULL; struct lustre_handle dt_conn = {0, }; struct lustre_handle md_conn = {0, }; struct obd_connect_data *data; struct inode *root = NULL; struct obd_device *obd; struct obd_statfs osfs; struct lustre_md md; kdev_t devno; int err; __u32 valsize; ENTRY; obd = class_name2obd(lmv); if (!obd) { CERROR("MDC %s: not setup or attached\n", lmv); RETURN(-EINVAL); } obd_set_info(obd->obd_self_export, strlen("async"), "async", sizeof(async), &async); if ((*remote & (OBD_CONNECT_LOCAL | OBD_CONNECT_REMOTE)) == (OBD_CONNECT_LOCAL | OBD_CONNECT_REMOTE)) { CERROR("wrong remote flag "LPX64"\n", *remote); RETURN(-EINVAL); } OBD_ALLOC(data, sizeof(*data)); if (!data) RETURN(-ENOMEM); data->ocd_connect_flags |= *remote & (OBD_CONNECT_LOCAL | OBD_CONNECT_REMOTE); memcpy(data->ocd_nllu, nllu, sizeof(data->ocd_nllu)); if (security == NULL) security = "null"; err = obd_set_info(obd->obd_self_export, strlen("sec"), "sec", strlen(security), security); if (err) { CERROR("LMV %s: failed to set security %s, err %d\n", lmv, security, err); OBD_FREE(data, sizeof(*data)); RETURN(err); } if (proc_lustre_fs_root) { err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb, lov, lmv); if (err < 0) CERROR("could not register mount in /proc/lustre"); } err = obd_connect(&md_conn, obd, &sbi->ll_sb_uuid, data, OBD_OPT_REAL_CLIENT); if (err == -EBUSY) { CERROR("An MDS (lmv %s) is performing recovery, of which this" " client is not a part. Please wait for recovery to " "complete, abort, or time out.\n", lmv); GOTO(out, err); } else if (err) { CERROR("cannot connect to %s: rc = %d\n", lmv, err); GOTO(out, err); } sbi->ll_md_exp = class_conn2export(&md_conn); err = obd_statfs(obd, &osfs, jiffies - HZ); if (err) GOTO(out_lmv, err); if (!osfs.os_bsize) { CERROR("Invalid block size is detected."); GOTO(out_lmv, err); } sb->s_magic = LL_SUPER_MAGIC; sb->s_blocksize = osfs.os_bsize; sb->s_blocksize_bits = log2(osfs.os_bsize); sb->s_maxbytes = PAGE_CACHE_MAXBYTES; devno = get_uuid2int((char *)sbi->ll_md_exp->exp_obd->obd_uuid.uuid, strlen((char *)sbi->ll_md_exp->exp_obd->obd_uuid.uuid)); sb->s_dev = devno; /* after statfs, we are supposed to have connected to MDSs, * so it's ok to check remote flag returned. */ valsize = sizeof(&sbi->ll_remote); err = obd_get_info(sbi->ll_md_exp, strlen("remote_flag"), "remote_flag", &valsize, &sbi->ll_remote); if (err) { CERROR("fail to obtain remote flag\n"); GOTO(out, err); } obd = class_name2obd(lov); if (!obd) { CERROR("OSC %s: not setup or attached\n", lov); GOTO(out_lmv, err); } obd_set_info(obd->obd_self_export, strlen("async"), "async", sizeof(async), &async); err = obd_connect(&dt_conn, obd, &sbi->ll_sb_uuid, data, OBD_OPT_REAL_CLIENT); if (err == -EBUSY) { CERROR("An OST (lov %s) is performing recovery, of which this" " client is not a part. Please wait for recovery to " "complete, abort, or time out.\n", lov); GOTO(out, err); } else if (err) { CERROR("cannot connect to %s: rc = %d\n", lov, err); GOTO(out_lmv, err); } sbi->ll_dt_exp = class_conn2export(&dt_conn); err = lustre_init_dt_desc(sbi); if (err == 0) { int mdsize = obd_size_diskmd(sbi->ll_dt_exp, NULL); obd_init_ea_size(sbi->ll_md_exp, mdsize, sbi->ll_dt_desc.ld_tgt_count * sizeof(struct llog_cookie)); } err = md_getstatus(sbi->ll_md_exp, &sbi->ll_rootid); if (err) { CERROR("cannot mds_connect: rc = %d\n", err); GOTO(out_lov, err); } CDEBUG(D_SUPER, "rootid "DLID4"\n", OLID4(&sbi->ll_rootid)); sb->s_op = &lustre_super_operations; /* make root inode * XXX: move this to after cbd setup? */ err = md_getattr(sbi->ll_md_exp, &sbi->ll_rootid, (OBD_MD_FLNOTOBD | OBD_MD_FLBLOCKS | OBD_MD_FID), NULL, 0, 0, &request); if (err) { CERROR("md_getattr failed for root: rc = %d\n", err); GOTO(out_lov, err); } err = mdc_req2lustre_md(sbi->ll_md_exp, request, 0, sbi->ll_dt_exp, &md); if (err) { CERROR("failed to understand root inode md: rc = %d\n", err); ptlrpc_req_finished(request); GOTO(out_lov, err); } LASSERT(id_ino(&sbi->ll_rootid) != 0); root = ll_iget(sb, id_ino(&sbi->ll_rootid), &md); ptlrpc_req_finished(request); if (root == NULL || is_bad_inode(root)) { if (md.lsm != NULL) obd_free_memmd(sbi->ll_dt_exp, &md.lsm); if (md.mea != NULL) obd_free_memmd(sbi->ll_md_exp, (struct lov_stripe_md**)&md.mea); CERROR("lustre_lite: bad iget4 for root\n"); GOTO(out_root, err = -EBADF); } err = ll_close_thread_start(&sbi->ll_lcq); if (err) { CERROR("cannot start close thread: rc %d\n", err); GOTO(out_root, err); } ll_gns_add_timer(sbi); /* making vm readahead 0 for 2.4.x. In the case of 2.6.x, backing dev info assigned to inode mapping is used for determining maximal readahead. */ #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)) && \ !defined(KERNEL_HAS_AS_MAX_READAHEAD) /* bug 2805 - set VM readahead to zero */ vm_max_readahead = vm_min_readahead = 0; #endif sb->s_root = d_alloc_root(root); sb->s_root->d_op = &ll_d_ops; sb->s_flags |= MS_POSIXACL; #ifdef S_PDIROPS CWARN("Enabling PDIROPS\n"); sb->s_flags |= S_PDIROPS; #endif if (data != NULL) OBD_FREE(data, sizeof(*data)); RETURN(err); out_root: if (root) iput(root); out_lov: obd_disconnect(sbi->ll_dt_exp, 0); out_lmv: obd_disconnect(sbi->ll_md_exp, 0); out: if (data != NULL) OBD_FREE(data, sizeof(*data)); lprocfs_unregister_mountpoint(sbi); return err; } void lustre_common_put_super(struct super_block *sb) { struct ll_sb_info *sbi = ll_s2sbi(sb); struct hlist_node *tmp, *next; ENTRY; ll_gns_del_timer(sbi); ll_close_thread_shutdown(sbi->ll_lcq); list_del(&sbi->ll_conn_chain); obd_disconnect(sbi->ll_dt_exp, 0); lprocfs_unregister_mountpoint(sbi); if (sbi->ll_proc_root) { lprocfs_remove(sbi->ll_proc_root); sbi->ll_proc_root = NULL; } obd_disconnect(sbi->ll_md_exp, 0); // We do this to get rid of orphaned dentries. That is not really trw. hlist_for_each_safe(tmp, next, &sbi->ll_orphan_dentry_list) { struct dentry *dentry = hlist_entry(tmp, struct dentry, d_hash); CWARN("orphan dentry %.*s (%p->%p) at unmount\n", dentry->d_name.len, dentry->d_name.name, dentry, next); shrink_dcache_parent(dentry); } EXIT; } char *ll_read_opt(const char *opt, char *data) { char *value; char *retval; ENTRY; CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data); if (strncmp(opt, data, strlen(opt))) RETURN(NULL); if ((value = strchr(data, '=')) == NULL) RETURN(NULL); value++; OBD_ALLOC(retval, strlen(value) + 1); if (!retval) { CERROR("out of memory!\n"); RETURN(NULL); } memcpy(retval, value, strlen(value)+1); CDEBUG(D_SUPER, "Assigned option: %s, value %s\n", opt, retval); RETURN(retval); } int ll_set_opt(const char *opt, char *data, int fl) { ENTRY; CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data); if (strncmp(opt, data, strlen(opt))) RETURN(0); else RETURN(fl); } void ll_options(char *options, char **lov, char **lmv, char **sec, int *async, int *flags) { char *this_char; #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) char *opt_ptr = options; #endif ENTRY; if (!options) { EXIT; return; } *async = 0; #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) for (this_char = strtok (options, ","); this_char != NULL; this_char = strtok (NULL, ",")) { #else while ((this_char = strsep (&opt_ptr, ",")) != NULL) { #endif CDEBUG(D_SUPER, "this_char %s\n", this_char); if (!*lov && (*lov = ll_read_opt("osc", this_char))) continue; if (!*lmv && (*lmv = ll_read_opt("mdc", this_char))) continue; if (!strncmp(this_char, "lasync", strlen("lasync"))) { *async = 1; continue; } if (!*sec && (*sec = ll_read_opt("sec", this_char))) continue; if (!(*flags & LL_SBI_NOLCK) && ((*flags) = (*flags) | ll_set_opt("nolock", this_char, LL_SBI_NOLCK))) continue; } EXIT; } void ll_lli_init(struct ll_inode_info *lli) { sema_init(&lli->lli_open_sem, 1); sema_init(&lli->lli_size_sem, 1); lli->lli_flags = 0; lli->lli_size_pid = 0; lli->lli_maxbytes = PAGE_CACHE_MAXBYTES; spin_lock_init(&lli->lli_lock); INIT_LIST_HEAD(&lli->lli_pending_write_llaps); lli->lli_inode_magic = LLI_INODE_MAGIC; memset(&lli->lli_id, 0, sizeof(lli->lli_id)); sema_init(&lli->lli_och_sem, 1); lli->lli_mds_read_och = lli->lli_mds_write_och = NULL; lli->lli_mds_exec_och = NULL; lli->lli_open_fd_read_count = lli->lli_open_fd_write_count = 0; lli->lli_open_fd_exec_count = 0; } int ll_fill_super(struct super_block *sb, void *data, int silent) { struct ll_sb_info *sbi; char *lov = NULL; char *lmv = NULL; int async, err; char *sec = NULL; __u32 nllu[2] = { NOBODY_UID, NOBODY_GID }; __u64 remote_flag = 0; ENTRY; CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb); sbi = lustre_init_sbi(sb); if (!sbi) RETURN(-ENOMEM); sbi->ll_flags |= LL_SBI_READAHEAD; ll_options(data, &lov, &lmv, &sec, &async, &sbi->ll_flags); if (!lov) { CERROR("no osc\n"); GOTO(out, err = -EINVAL); } if (!lmv) { CERROR("no mdc\n"); GOTO(out, err = -EINVAL); } err = lustre_common_fill_super(sb, lmv, lov, async, sec, nllu, &remote_flag); EXIT; out: if (err) lustre_free_sbi(sb); if (sec) OBD_FREE(sec, strlen(sec) + 1); if (lmv) OBD_FREE(lmv, strlen(lmv) + 1); if (lov) OBD_FREE(lov, strlen(lov) + 1); return err; } /* ll_read_super */ static int lustre_process_log(struct lustre_mount_data *lmd, char *profile, struct config_llog_instance *cfg, int allow_recov) { struct lustre_cfg *lcfg = NULL; struct lustre_cfg_bufs bufs; struct portals_cfg pcfg; char *peer = "MDS_PEER_UUID"; struct obd_device *obd; struct lustre_handle md_conn = {0, }; struct obd_export *exp; char *name = "mdc_dev"; class_uuid_t uuid; struct obd_uuid lmv_uuid; struct llog_ctxt *ctxt; int rc = 0, err = 0; ENTRY; if (lmd_bad_magic(lmd)) RETURN(-EINVAL); generate_random_uuid(uuid); class_uuid_unparse(uuid, &lmv_uuid); if (lmd->lmd_local_nid) { PCFG_INIT(pcfg, NAL_CMD_REGISTER_MYNID); pcfg.pcfg_nal = lmd->lmd_nal; pcfg.pcfg_nid = lmd->lmd_local_nid; rc = libcfs_nal_cmd(&pcfg); if (rc < 0) GOTO(out, rc); } if (lmd->lmd_nal == SOCKNAL || lmd->lmd_nal == OPENIBNAL || lmd->lmd_nal == IIBNAL || lmd->lmd_nal == VIBNAL || lmd->lmd_nal == RANAL) { PCFG_INIT(pcfg, NAL_CMD_ADD_PEER); pcfg.pcfg_nal = lmd->lmd_nal; pcfg.pcfg_nid = lmd->lmd_server_nid; pcfg.pcfg_id = lmd->lmd_server_ipaddr; pcfg.pcfg_misc = lmd->lmd_port; rc = libcfs_nal_cmd(&pcfg); if (rc < 0) GOTO(out, rc); } lustre_cfg_bufs_reset(&bufs, name); lustre_cfg_bufs_set_string(&bufs, 1, peer); lcfg = lustre_cfg_new(LCFG_ADD_UUID, &bufs); lcfg->lcfg_nal = lmd->lmd_nal; lcfg->lcfg_nid = lmd->lmd_server_nid; LASSERT(lcfg->lcfg_nal); LASSERT(lcfg->lcfg_nid); err = class_process_config(lcfg); lustre_cfg_free(lcfg); if (err < 0) GOTO(out_del_conn, err); lustre_cfg_bufs_reset(&bufs, name); lustre_cfg_bufs_set_string(&bufs, 1, LUSTRE_MDC_NAME); lustre_cfg_bufs_set_string(&bufs, 2, (char *)lmv_uuid.uuid); lcfg = lustre_cfg_new(LCFG_ATTACH, &bufs); err = class_process_config(lcfg); lustre_cfg_free(lcfg); if (err < 0) GOTO(out_del_uuid, err); lustre_cfg_bufs_reset(&bufs, name); lustre_cfg_bufs_set_string(&bufs, 1, lmd->lmd_mds); lustre_cfg_bufs_set_string(&bufs, 2, peer); lcfg = lustre_cfg_new(LCFG_SETUP, &bufs); err = class_process_config(lcfg); lustre_cfg_free(lcfg); if (err < 0) GOTO(out_detach, err); obd = class_name2obd(name); if (obd == NULL) GOTO(out_cleanup, rc = -EINVAL); rc = obd_set_info(obd->obd_self_export, strlen("sec"), "sec", strlen(lmd->lmd_security), lmd->lmd_security); if (rc) GOTO(out_cleanup, rc); /* Disable initial recovery on this import */ rc = obd_set_info(obd->obd_self_export, strlen("initial_recov"), "initial_recov", sizeof(allow_recov), &allow_recov); if (rc) GOTO(out_cleanup, rc); rc = obd_connect(&md_conn, obd, &lmv_uuid, NULL, 0); if (rc) { CERROR("cannot connect to %s: rc = %d\n", lmd->lmd_mds, rc); GOTO(out_cleanup, rc); } exp = class_conn2export(&md_conn); ctxt = llog_get_context(&exp->exp_obd->obd_llogs,LLOG_CONFIG_REPL_CTXT); rc = class_config_process_llog(ctxt, profile, cfg); if (rc) CERROR("class_config_process_llog failed: rc = %d\n", rc); err = obd_disconnect(exp, 0); EXIT; out_cleanup: lustre_cfg_bufs_reset(&bufs, name); lcfg = lustre_cfg_new(LCFG_CLEANUP, &bufs); err = class_process_config(lcfg); lustre_cfg_free(lcfg); if (err < 0) GOTO(out, err); out_detach: lustre_cfg_bufs_reset(&bufs, name); lcfg = lustre_cfg_new(LCFG_DETACH, &bufs); err = class_process_config(lcfg); lustre_cfg_free(lcfg); if (err < 0) GOTO(out, err); out_del_uuid: lustre_cfg_bufs_reset(&bufs, name); lustre_cfg_bufs_set_string(&bufs, 1, peer); lcfg = lustre_cfg_new(LCFG_DEL_UUID, &bufs); err = class_process_config(lcfg); lustre_cfg_free(lcfg); out_del_conn: if (lmd->lmd_nal == SOCKNAL || lmd->lmd_nal == OPENIBNAL || lmd->lmd_nal == IIBNAL || lmd->lmd_nal == VIBNAL || lmd->lmd_nal == RANAL) { int err2; PCFG_INIT(pcfg, NAL_CMD_DEL_PEER); pcfg.pcfg_nal = lmd->lmd_nal; pcfg.pcfg_nid = lmd->lmd_server_nid; pcfg.pcfg_flags = 1; /* single_share */ err2 = libcfs_nal_cmd(&pcfg); if (err2 && !err) err = err2; if (err < 0) GOTO(out, err); } out: if (rc == 0) rc = err; return rc; } static void lustre_manual_cleanup(struct ll_sb_info *sbi) { struct lustre_cfg *lcfg; struct lustre_cfg_bufs bufs; struct obd_device *obd; int next = 0; while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next)) != NULL) { int err; lustre_cfg_bufs_reset(&bufs, obd->obd_name); lcfg = lustre_cfg_new(LCFG_CLEANUP, &bufs); err = class_process_config(lcfg); if (err) { CERROR("cleanup failed: %s\n", obd->obd_name); //continue; } lcfg->lcfg_command = LCFG_DETACH; err = class_process_config(lcfg); lustre_cfg_free(lcfg); if (err) { CERROR("detach failed: %s\n", obd->obd_name); //continue; } } if (sbi->ll_lmd != NULL) class_del_profile(sbi->ll_lmd->lmd_profile); } int lustre_fill_super(struct super_block *sb, void *data, int silent) { struct lustre_mount_data * lmd = data; char *lov = NULL, *lmv = NULL; struct ll_sb_info *sbi; int err; ENTRY; CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb); if (lmd_bad_magic(lmd)) RETURN(-EINVAL); sbi = lustre_init_sbi(sb); if (!sbi) RETURN(-ENOMEM); sbi->ll_flags |= LL_SBI_READAHEAD; if (lmd->lmd_profile) { struct lustre_profile *lprof; struct config_llog_instance cfg; int len; if (lmd->lmd_mds[0] == '\0') { CERROR("no mds name\n"); GOTO(out_free, err = -EINVAL); } lmd->lmd_security[sizeof(lmd->lmd_security) - 1] = 0; OBD_ALLOC(sbi->ll_lmd, sizeof(*sbi->ll_lmd)); if (sbi->ll_lmd == NULL) GOTO(out_free, err = -ENOMEM); memcpy(sbi->ll_lmd, lmd, sizeof(*lmd)); /* generate a string unique to this super, let's try the address of the super itself.*/ len = (sizeof(sb) * 2) + 1; OBD_ALLOC(sbi->ll_instance, len); if (sbi->ll_instance == NULL) GOTO(out_free, err = -ENOMEM); sprintf(sbi->ll_instance, "%p", sb); cfg.cfg_instance = sbi->ll_instance; cfg.cfg_uuid = sbi->ll_sb_uuid; cfg.cfg_local_nid = lmd->lmd_local_nid; err = lustre_process_log(lmd, lmd->lmd_profile, &cfg, 0); if (err < 0) { CERROR("Unable to process log: %s\n", lmd->lmd_profile); GOTO(out_free, err); } lprof = class_get_profile(lmd->lmd_profile); if (lprof == NULL) { CERROR("No profile found: %s\n", lmd->lmd_profile); GOTO(out_free, err = -EINVAL); } if (lov) OBD_FREE(lov, strlen(lov) + 1); OBD_ALLOC(lov, strlen(lprof->lp_lov) + strlen(sbi->ll_instance) + 2); sprintf(lov, "%s-%s", lprof->lp_lov, sbi->ll_instance); if (lmv) OBD_FREE(lmv, strlen(lmv) + 1); OBD_ALLOC(lmv, strlen(lprof->lp_lmv) + strlen(sbi->ll_instance) + 2); sprintf(lmv, "%s-%s", lprof->lp_lmv, sbi->ll_instance); } if (!lov) { CERROR("no osc\n"); GOTO(out_free, err = -EINVAL); } if (!lmv) { CERROR("no mdc\n"); GOTO(out_free, err = -EINVAL); } err = lustre_common_fill_super(sb, lmv, lov, lmd->lmd_async, lmd->lmd_security, &lmd->lmd_nllu, &lmd->lmd_remote_flag); if (err) GOTO(out_free, err); out_dev: if (lmv) OBD_FREE(lmv, strlen(lmv) + 1); if (lov) OBD_FREE(lov, strlen(lov) + 1); RETURN(err); out_free: if (sbi->ll_lmd) { int len = strlen(sbi->ll_lmd->lmd_profile) + sizeof("-clean")+1; int err; if (sbi->ll_instance != NULL) { struct lustre_mount_data *lmd = sbi->ll_lmd; struct config_llog_instance cfg; char *cl_prof; cfg.cfg_instance = sbi->ll_instance; cfg.cfg_uuid = sbi->ll_sb_uuid; OBD_ALLOC(cl_prof, len); sprintf(cl_prof, "%s-clean", lmd->lmd_profile); err = lustre_process_log(lmd, cl_prof, &cfg, 0); if (err < 0) { CERROR("Unable to process log: %s\n", cl_prof); lustre_manual_cleanup(sbi); } OBD_FREE(cl_prof, len); OBD_FREE(sbi->ll_instance, strlen(sbi->ll_instance) + 1); } OBD_FREE(sbi->ll_lmd, sizeof(*sbi->ll_lmd)); } lustre_free_sbi(sb); goto out_dev; } /* lustre_fill_super */ void lustre_put_super(struct super_block *sb) { struct obd_device *obd; struct ll_sb_info *sbi = ll_s2sbi(sb); int force_umount = 0; ENTRY; CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb); obd = class_exp2obd(sbi->ll_md_exp); if (obd) force_umount = obd->obd_no_recov; obd = NULL; lustre_common_put_super(sb); if (sbi->ll_lmd != NULL) { char *cl_prof; int len = strlen(sbi->ll_lmd->lmd_profile) + sizeof("-clean")+1; int err; struct config_llog_instance cfg; if (force_umount) { CERROR("force umount, doing manual cleanup\n"); lustre_manual_cleanup(sbi); GOTO(free_lmd, 0); } cfg.cfg_instance = sbi->ll_instance; cfg.cfg_uuid = sbi->ll_sb_uuid; OBD_ALLOC(cl_prof, len); sprintf(cl_prof, "%s-clean", sbi->ll_lmd->lmd_profile); err = lustre_process_log(sbi->ll_lmd, cl_prof, &cfg, 0); if (err < 0) { CERROR("Unable to process log: %s, doing manual cleanup" "\n", cl_prof); lustre_manual_cleanup(sbi); } OBD_FREE(cl_prof, len); free_lmd: OBD_FREE(sbi->ll_lmd, sizeof(*sbi->ll_lmd)); OBD_FREE(sbi->ll_instance, strlen(sbi->ll_instance) + 1); } lustre_free_sbi(sb); EXIT; } /* lustre_put_super */ int ll_process_config_update(struct ll_sb_info *sbi, int clean) { struct obd_export *md_exp = sbi->ll_md_exp; struct lustre_mount_data *lmd = sbi->ll_lmd; char *profile = lmd->lmd_profile, *name = NULL; struct config_llog_instance cfg; int rc, namelen = 0, version; struct llog_ctxt *ctxt; ENTRY; if (profile == NULL) RETURN(0); if (lmd == NULL) { CERROR("Client not mounted with zero-conf; cannot process " "update log.\n"); RETURN(0); } rc = ldlm_cli_cancel_unused(md_exp->exp_obd->obd_namespace, NULL, LDLM_FL_CONFIG_CHANGE, NULL); if (rc != 0) CWARN("ldlm_cli_cancel_unused(mdc): %d\n", rc); rc = obd_cancel_unused(sbi->ll_dt_exp, NULL, LDLM_FL_CONFIG_CHANGE, NULL); if (rc != 0) CWARN("obd_cancel_unused(lov): %d\n", rc); cfg.cfg_instance = sbi->ll_instance; cfg.cfg_uuid = sbi->ll_sb_uuid; cfg.cfg_local_nid = lmd->lmd_local_nid; namelen = strlen(profile) + 20; /* -clean-######### */ OBD_ALLOC(name, namelen); if (name == NULL) RETURN(-ENOMEM); if (clean) { version = sbi->ll_config_version - 1; sprintf(name, "%s-clean-%d", profile, version); } else { version = sbi->ll_config_version + 1; sprintf(name, "%s-%d", profile, version); } CWARN("Applying configuration log %s\n", name); ctxt = llog_get_context(&md_exp->exp_obd->obd_llogs, LLOG_CONFIG_REPL_CTXT); rc = class_config_process_llog(ctxt, name, &cfg); if (rc == 0) sbi->ll_config_version = version; CWARN("Finished applying configuration log %s: %d\n", name, rc); if (rc == 0 && clean == 0) { struct lov_desc desc; __u32 valsize; int rc = 0; valsize = sizeof(desc); rc = obd_get_info(sbi->ll_dt_exp, strlen("lovdesc") + 1, "lovdesc", &valsize, &desc); rc = obd_init_ea_size(md_exp, obd_size_diskmd(sbi->ll_dt_exp, NULL), (desc.ld_tgt_count * sizeof(struct llog_cookie))); } OBD_FREE(name, namelen); RETURN(rc); } struct inode *ll_inode_from_lock(struct ldlm_lock *lock) { struct inode *inode = NULL; l_lock(&lock->l_resource->lr_namespace->ns_lock); if (lock->l_ast_data) { struct ll_inode_info *lli = ll_i2info(lock->l_ast_data); if (lli->lli_inode_magic == LLI_INODE_MAGIC) { inode = igrab(lock->l_ast_data); } else { inode = lock->l_ast_data; CDEBUG(inode->i_state & I_FREEING ? D_INFO : D_WARNING, "l_ast_data %p is bogus: magic %0x8\n", lock->l_ast_data, lli->lli_inode_magic); inode = NULL; } } l_unlock(&lock->l_resource->lr_namespace->ns_lock); return inode; } int null_if_equal(struct ldlm_lock *lock, void *data) { if (data == lock->l_ast_data) { lock->l_ast_data = NULL; if (lock->l_req_mode != lock->l_granted_mode) LDLM_ERROR(lock,"clearing inode with ungranted lock\n"); } return LDLM_ITER_CONTINUE; } void ll_clear_inode(struct inode *inode) { struct lustre_id id; struct ll_inode_info *lli = ll_i2info(inode); struct ll_sb_info *sbi = ll_i2sbi(inode); ENTRY; CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino, inode->i_generation, inode); lli->lli_inode_magic = LLI_INODE_DEAD; ll_inode2id(&id, inode); clear_bit(LLI_F_HAVE_MDS_SIZE_LOCK, &(ll_i2info(inode)->lli_flags)); md_change_cbdata(sbi->ll_md_exp, &id, null_if_equal, inode); LASSERT(!lli->lli_open_fd_write_count); LASSERT(!lli->lli_open_fd_read_count); LASSERT(!lli->lli_open_fd_exec_count); if (lli->lli_mds_write_och) ll_md_real_close(sbi->ll_md_exp, inode, FMODE_WRITE); if (lli->lli_mds_exec_och) ll_md_real_close(sbi->ll_md_exp, inode, FMODE_EXEC); if (lli->lli_mds_read_och) ll_md_real_close(sbi->ll_md_exp, inode, FMODE_READ); if (lli->lli_smd) obd_change_cbdata(sbi->ll_dt_exp, lli->lli_smd, null_if_equal, inode); if (lli->lli_smd) { obd_free_memmd(sbi->ll_dt_exp, &lli->lli_smd); lli->lli_smd = NULL; } if (lli->lli_mea) { obd_free_memmd(sbi->ll_md_exp, (struct lov_stripe_md **) &lli->lli_mea); lli->lli_mea = NULL; } if (lli->lli_symlink_name) { OBD_FREE(lli->lli_symlink_name, strlen(lli->lli_symlink_name) + 1); lli->lli_symlink_name = NULL; } lli->lli_inode_magic = LLI_INODE_DEAD; EXIT; } /* If this inode has objects allocated to it (lsm != NULL), then the OST * object(s) determine the file size and mtime. Otherwise, the MDS will * keep these values until such a time that objects are allocated for it. * We do the MDS operations first, as it is checking permissions for us. * We don't to the MDS RPC if there is nothing that we want to store there, * otherwise there is no harm in updating mtime/atime on the MDS if we are * going to do an RPC anyways. * * If we are doing a truncate, we will send the mtime and ctime updates * to the OST with the punch RPC, otherwise we do an explicit setattr RPC. * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE * at the same time. */ int ll_setattr_raw(struct inode *inode, struct iattr *attr) { struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd; struct ll_sb_info *sbi = ll_i2sbi(inode); struct ptlrpc_request *request = NULL; struct mdc_op_data *op_data; int ia_valid = attr->ia_valid; int err, rc = 0; ENTRY; CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu\n", inode->i_ino); lprocfs_counter_incr(ll_i2sbi(inode)->ll_stats, LPROC_LL_SETATTR); if (ia_valid & ATTR_SIZE) { if (attr->ia_size > ll_file_maxbytes(inode)) { CDEBUG(D_INODE, "file too large %llu > "LPU64"\n", attr->ia_size, ll_file_maxbytes(inode)); RETURN(-EFBIG); } attr->ia_valid |= ATTR_MTIME | ATTR_CTIME; } /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */ if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET)) { if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER)) RETURN(-EPERM); } /* We mark all of the fields "set" so MDS/OST does not re-set them */ if (attr->ia_valid & ATTR_CTIME) { attr->ia_ctime = CURRENT_TIME; attr->ia_valid |= ATTR_CTIME_SET; } if (!(ia_valid & ATTR_ATIME_SET) && (attr->ia_valid & ATTR_ATIME)) { attr->ia_atime = CURRENT_TIME; attr->ia_valid |= ATTR_ATIME_SET; } if (!(ia_valid & ATTR_MTIME_SET) && (attr->ia_valid & ATTR_MTIME)) { attr->ia_mtime = CURRENT_TIME; attr->ia_valid |= ATTR_MTIME_SET; } if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME)) CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n", LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime), LTIME_S(CURRENT_TIME)); if (lsm) attr->ia_valid &= ~ATTR_SIZE; /* If only OST attributes being set on objects, don't do MDS RPC. * In that case, we need to check permissions and update the local * inode ourselves so we can call obdo_from_inode() always. */ if (ia_valid & (lsm ? ~(ATTR_SIZE | ATTR_FROM_OPEN /*| ATTR_RAW*/) : ~0)) { struct lustre_md md; OBD_ALLOC(op_data, sizeof(*op_data)); if (op_data == NULL) RETURN(-ENOMEM); ll_prepare_mdc_data(op_data, inode, NULL, NULL, 0, 0); rc = md_setattr(sbi->ll_md_exp, op_data, attr, NULL, 0, NULL, 0, &request); OBD_FREE(op_data, sizeof(*op_data)); if (rc) { ptlrpc_req_finished(request); if (rc != -EPERM && rc != -EACCES) CERROR("md_setattr fails: rc = %d\n", rc); RETURN(rc); } rc = mdc_req2lustre_md(sbi->ll_md_exp, request, 0, sbi->ll_dt_exp, &md); if (rc) { ptlrpc_req_finished(request); RETURN(rc); } /* We call inode_setattr to adjust timestamps, but we first * clear ATTR_SIZE to avoid invoking vmtruncate. * * NB: ATTR_SIZE will only be set at this point if the size * resides on the MDS, ie, this file has no objects. */ attr->ia_valid &= ~ATTR_SIZE; /* * assigning inode_setattr() to @err to disable warning that * function's result should be checked by by caller. error is * impossible here, as vmtruncate() control path is disabled. */ err = inode_setattr(inode, attr); ll_update_inode(inode, &md); ptlrpc_req_finished(request); if (!lsm || !S_ISREG(inode->i_mode)) { CDEBUG(D_INODE, "no lsm: not setting attrs on OST\n"); RETURN(0); } } else { /* The OST doesn't check permissions, but the alternative is * a gratuitous RPC to the MDS. We already rely on the client * to do read/write/truncate permission checks, so is mtime OK? */ if (ia_valid & (ATTR_MTIME | ATTR_ATIME)) { /* from sys_utime() */ if (!(ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET))) { if (current->fsuid != inode->i_uid && (rc=ll_permission(inode,MAY_WRITE,NULL))!=0) RETURN(rc); } else { /* from inode_change_ok() */ if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER)) RETURN(-EPERM); } } /* won't invoke vmtruncate, as we already cleared ATTR_SIZE */ err = inode_setattr(inode, attr); /* * assigning inode_setattr() to @err to disable warning that * function's result should be checked by by caller. error is * impossible here, as vmtruncate() control path is disabled. */ } /* We really need to get our PW lock before we change inode->i_size. * If we don't we can race with other i_size updaters on our node, like * ll_file_read. We can also race with i_size propogation to other * nodes through dirtying and writeback of final cached pages. This * last one is especially bad for racing o_append users on other * nodes. */ if (ia_valid & ATTR_SIZE) { ldlm_policy_data_t policy = { .l_extent = {attr->ia_size, OBD_OBJECT_EOF } }; struct lustre_handle lockh = { 0 }; struct ll_inode_info *lli = ll_i2info(inode); int err, ast_flags = 0; /* XXX when we fix the AST intents to pass the discard-range * XXX extent, make ast_flags always LDLM_AST_DISCARD_DATA * XXX here. */ if (attr->ia_size == 0) ast_flags = LDLM_AST_DISCARD_DATA; rc = ll_extent_lock(NULL, inode, lsm, LCK_PW, &policy, &lockh, ast_flags, &ll_i2sbi(inode)->ll_seek_stime); if (rc != 0) RETURN(rc); down(&lli->lli_size_sem); lli->lli_size_pid = current->pid; rc = vmtruncate(inode, attr->ia_size); if (rc != 0) { LASSERT(atomic_read(&lli->lli_size_sem.count) <= 0); lli->lli_size_pid = 0; up(&lli->lli_size_sem); } err = ll_extent_unlock(NULL, inode, lsm, LCK_PW, &lockh); if (err) { CERROR("ll_extent_unlock failed: %d\n", err); if (!rc) rc = err; } } else if (ia_valid & (ATTR_MTIME | ATTR_MTIME_SET)) { struct obdo *oa = NULL; CDEBUG(D_INODE, "set mtime on OST inode %lu to %lu\n", inode->i_ino, LTIME_S(attr->ia_mtime)); oa = obdo_alloc(); if (oa == NULL) RETURN(-ENOMEM); oa->o_id = lsm->lsm_object_id; oa->o_gr = lsm->lsm_object_gr; oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP; obdo_from_inode(oa, inode, OBD_MD_FLTYPE | OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME); rc = obd_setattr(sbi->ll_dt_exp, oa, lsm, NULL); obdo_free(oa); if (rc) CERROR("obd_setattr fails: rc = %d\n", rc); } RETURN(rc); } int ll_setattr(struct dentry *de, struct iattr *attr) { LASSERT(de->d_inode); return ll_setattr_raw(de->d_inode, attr); } int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs, unsigned long max_age) { struct ll_sb_info *sbi = ll_s2sbi(sb); struct obd_statfs obd_osfs; int rc; ENTRY; rc = obd_statfs(class_exp2obd(sbi->ll_md_exp), osfs, max_age); if (rc) { CERROR("obd_statfs fails: rc = %d\n", rc); RETURN(rc); } osfs->os_type = sb->s_magic; CDEBUG(D_SUPER, "MDC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n", osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,osfs->os_files); rc = obd_statfs(class_exp2obd(sbi->ll_dt_exp), &obd_osfs, max_age); if (rc) { CERROR("obd_statfs fails: rc = %d\n", rc); RETURN(rc); } CDEBUG(D_SUPER, "OSC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n", obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree, obd_osfs.os_files); osfs->os_blocks = obd_osfs.os_blocks; osfs->os_bfree = obd_osfs.os_bfree; osfs->os_bavail = obd_osfs.os_bavail; /* If we don't have as many objects free on the OST as inodes * on the MDS, we reduce the total number of inodes to * compensate, so that the "inodes in use" number is correct. */ if (obd_osfs.os_ffree < osfs->os_ffree) { osfs->os_files = (osfs->os_files - osfs->os_ffree) + obd_osfs.os_ffree; osfs->os_ffree = obd_osfs.os_ffree; } RETURN(rc); } int ll_statfs(struct super_block *sb, struct kstatfs *sfs) { struct obd_statfs osfs; int rc; CDEBUG(D_VFSTRACE, "VFS Op: superblock %p\n", sb); lprocfs_counter_incr(ll_s2sbi(sb)->ll_stats, LPROC_LL_STAFS); /* For now we will always get up-to-date statfs values, but in the * future we may allow some amount of caching on the client (e.g. * from QOS or lprocfs updates). */ rc = ll_statfs_internal(sb, &osfs, jiffies - 1); if (rc) return rc; statfs_unpack(sfs, &osfs); if (sizeof(sfs->f_blocks) == 4) { while (osfs.os_blocks > ~0UL) { sfs->f_bsize <<= 1; osfs.os_blocks >>= 1; osfs.os_bfree >>= 1; osfs.os_bavail >>= 1; } } sfs->f_blocks = osfs.os_blocks; sfs->f_bfree = osfs.os_bfree; sfs->f_bavail = osfs.os_bavail; return 0; } void ll_update_inode(struct inode *inode, struct lustre_md *md) { struct ll_inode_info *lli = ll_i2info(inode); struct lov_stripe_md *lsm = md->lsm; struct mds_body *body = md->body; struct mea *mea = md->mea; struct posix_acl *ll_acl_access = md->acl_access; ENTRY; LASSERT((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0)); if (md->lsm && md->lsm->lsm_magic != LOV_MAGIC) { /* check for default striping info for dir. */ LASSERT((mea != NULL) == ((body->valid & OBD_MD_FLDIREA) != 0)); } if (lsm != NULL) { LASSERT(lsm->lsm_object_gr > 0); if (lli->lli_smd == NULL) { lli->lli_smd = lsm; lli->lli_maxbytes = lsm->lsm_maxbytes; if (lli->lli_maxbytes > PAGE_CACHE_MAXBYTES) lli->lli_maxbytes = PAGE_CACHE_MAXBYTES; } else { int i; if (memcmp(lli->lli_smd, lsm, sizeof(*lsm))) { CERROR("lsm mismatch for inode %ld\n", inode->i_ino); CERROR("lli_smd:\n"); dump_lsm(D_ERROR, lli->lli_smd); CERROR("lsm:\n"); dump_lsm(D_ERROR, lsm); LBUG(); } /* XXX FIXME -- We should decide on a safer (atomic) and * more elegant way to update the lsm */ for (i = 0; i < lsm->lsm_stripe_count; i++) { lli->lli_smd->lsm_oinfo[i].loi_id = lsm->lsm_oinfo[i].loi_id; lli->lli_smd->lsm_oinfo[i].loi_gr = lsm->lsm_oinfo[i].loi_gr; lli->lli_smd->lsm_oinfo[i].loi_ost_idx = lsm->lsm_oinfo[i].loi_ost_idx; lli->lli_smd->lsm_oinfo[i].loi_ost_gen = lsm->lsm_oinfo[i].loi_ost_gen; } } /* bug 2844 - limit i_blksize for broken user-space apps */ LASSERTF(lsm->lsm_xfersize != 0, "%lu\n", lsm->lsm_xfersize); inode->i_blksize = min(lsm->lsm_xfersize, LL_MAX_BLKSIZE); if (lli->lli_smd != lsm) obd_free_memmd(ll_i2dtexp(inode), &lsm); } if (mea != NULL) { if (lli->lli_mea == NULL) { lli->lli_mea = mea; } else { if (memcmp(lli->lli_mea, mea, body->eadatasize)) { CERROR("mea mismatch for inode %lu\n", inode->i_ino); LBUG(); } } if (lli->lli_mea != mea) obd_free_memmd(ll_i2mdexp(inode), (struct lov_stripe_md **) &mea); } if (body->valid & OBD_MD_FID) id_assign_fid(&lli->lli_id, &body->id1); if (body->valid & OBD_MD_FLID) id_ino(&lli->lli_id) = id_ino(&body->id1); if (body->valid & OBD_MD_FLGENER) id_gen(&lli->lli_id) = id_gen(&body->id1); spin_lock(&lli->lli_lock); if (ll_acl_access != NULL) { if (lli->lli_acl_access != NULL) posix_acl_release(lli->lli_acl_access); lli->lli_acl_access = ll_acl_access; } spin_unlock(&lli->lli_lock); if (body->valid & OBD_MD_FLID) inode->i_ino = id_ino(&body->id1); if (body->valid & OBD_MD_FLGENER) inode->i_generation = id_gen(&body->id1); if (body->valid & OBD_MD_FLATIME) LTIME_S(inode->i_atime) = body->atime; if (body->valid & OBD_MD_FLMTIME && body->mtime > LTIME_S(inode->i_mtime)) { CDEBUG(D_INODE, "setting ino %lu mtime from %lu to %u\n", inode->i_ino, LTIME_S(inode->i_mtime), body->mtime); LTIME_S(inode->i_mtime) = body->mtime; } if (body->valid & OBD_MD_FLCTIME && body->ctime > LTIME_S(inode->i_ctime)) LTIME_S(inode->i_ctime) = body->ctime; if (body->valid & OBD_MD_FLMODE) { inode->i_mode = (inode->i_mode & S_IFMT) | (body->mode & ~S_IFMT); } if (body->valid & OBD_MD_FLTYPE) { inode->i_mode = (inode->i_mode & ~S_IFMT) | (body->mode & S_IFMT); } if (body->valid & OBD_MD_FLUID) inode->i_uid = body->uid; if (body->valid & OBD_MD_FLGID) inode->i_gid = body->gid; if (body->valid & OBD_MD_FLFLAGS) inode->i_flags = body->flags; if (body->valid & OBD_MD_FLNLINK) inode->i_nlink = body->nlink; if (body->valid & OBD_MD_FLRDEV) #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) inode->i_rdev = body->rdev; #else inode->i_rdev = old_decode_dev(body->rdev); #endif if (body->valid & OBD_MD_FLSIZE) inode->i_size = body->size; if (body->valid & OBD_MD_FLBLOCKS) inode->i_blocks = body->blocks; if (body->valid & OBD_MD_FLSIZE) set_bit(LLI_F_HAVE_MDS_SIZE_LOCK, &lli->lli_flags); #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) inode->i_dev = (kdev_t)id_group(&lli->lli_id); #endif LASSERT(id_fid(&lli->lli_id) != 0); } #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) static struct backing_dev_info ll_backing_dev_info = { .ra_pages = 0, /* No readahead */ .memory_backed = 0, /* Does contribute to dirty memory */ }; #endif void ll_read_inode2(struct inode *inode, void *opaque) { struct lustre_md *md = opaque; struct ll_inode_info *lli = ll_i2info(inode); ENTRY; CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino, inode->i_generation, inode); ll_lli_init(lli); LASSERT(!lli->lli_smd); /* Core attributes from the MDS first. This is a new inode, and * the VFS doesn't zero times in the core inode so we have to do * it ourselves. They will be overwritten by either MDS or OST * attributes - we just need to make sure they aren't newer. */ LTIME_S(inode->i_mtime) = 0; LTIME_S(inode->i_atime) = 0; LTIME_S(inode->i_ctime) = 0; inode->i_rdev = 0; ll_update_inode(inode, md); /* OIDEBUG(inode); */ if (S_ISREG(inode->i_mode)) { inode->i_op = &ll_file_inode_operations; inode->i_fop = &ll_file_operations; inode->i_mapping->a_ops = &ll_aops; EXIT; } else if (S_ISDIR(inode->i_mode)) { inode->i_op = &ll_dir_inode_operations; inode->i_fop = &ll_dir_operations; inode->i_mapping->a_ops = &ll_dir_aops; EXIT; } else if (S_ISLNK(inode->i_mode)) { inode->i_op = &ll_fast_symlink_inode_operations; EXIT; } else { inode->i_op = &ll_special_inode_operations; #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) init_special_inode(inode, inode->i_mode, kdev_t_to_nr(inode->i_rdev)); /* initializing backing dev info. */ inode->i_mapping->backing_dev_info = &ll_backing_dev_info; #else init_special_inode(inode, inode->i_mode, inode->i_rdev); #endif lli->ll_save_ifop = inode->i_fop; if (S_ISCHR(inode->i_mode)) inode->i_fop = &ll_special_chr_inode_fops; else if (S_ISBLK(inode->i_mode)) inode->i_fop = &ll_special_blk_inode_fops; else if (S_ISFIFO(inode->i_mode)) inode->i_fop = &ll_special_fifo_inode_fops; else if (S_ISSOCK(inode->i_mode)) inode->i_fop = &ll_special_sock_inode_fops; CWARN("saved %p, replaced with %p\n", lli->ll_save_ifop, inode->i_fop); if (lli->ll_save_ifop->owner) { CWARN("%p has owner %p\n", lli->ll_save_ifop, lli->ll_save_ifop->owner); } EXIT; } } void ll_delete_inode(struct inode *inode) { struct ll_sb_info *sbi = ll_i2sbi(inode); struct lustre_id id; int rc; ENTRY; ll_inode2id(&id, inode); rc = md_delete_inode(sbi->ll_md_exp, &id); if (rc) { CERROR("md_delete_inode() failed, error %d\n", rc); } clear_inode(inode); EXIT; } int ll_iocontrol(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { struct ll_sb_info *sbi = ll_i2sbi(inode); struct ptlrpc_request *req = NULL; int rc, flags = 0; ENTRY; switch(cmd) { case EXT3_IOC_GETFLAGS: { struct lustre_id id; __u64 valid = OBD_MD_FLFLAGS; struct mds_body *body; ll_inode2id(&id, inode); rc = md_getattr(sbi->ll_md_exp, &id, valid, NULL, 0, 0, &req); if (rc) { CERROR("failure %d inode %lu\n", rc, inode->i_ino); RETURN(-abs(rc)); } body = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*body)); if (body->flags & S_APPEND) flags |= EXT3_APPEND_FL; if (body->flags & S_IMMUTABLE) flags |= EXT3_IMMUTABLE_FL; if (body->flags & S_NOATIME) flags |= EXT3_NOATIME_FL; ptlrpc_req_finished (req); RETURN(put_user(flags, (int *)arg)); } case EXT3_IOC_SETFLAGS: { struct mdc_op_data *op_data; struct iattr attr; struct obdo *oa; struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd; if (get_user(flags, (int *)arg)) RETURN(-EFAULT); oa = obdo_alloc(); if (!oa) RETURN(-ENOMEM); OBD_ALLOC(op_data, sizeof(*op_data)); if (op_data == NULL) { obdo_free(oa); RETURN(-ENOMEM); } ll_prepare_mdc_data(op_data, inode, NULL, NULL, 0, 0); memset(&attr, 0x0, sizeof(attr)); attr.ia_attr_flags = flags; attr.ia_valid |= ATTR_ATTR_FLAG; rc = md_setattr(sbi->ll_md_exp, op_data, &attr, NULL, 0, NULL, 0, &req); OBD_FREE(op_data, sizeof(*op_data)); if (rc) { ptlrpc_req_finished(req); if (rc != -EPERM && rc != -EACCES) CERROR("md_setattr fails: rc = %d\n", rc); obdo_free(oa); RETURN(rc); } ptlrpc_req_finished(req); oa->o_id = lsm->lsm_object_id; oa->o_gr = lsm->lsm_object_gr; oa->o_flags = flags; oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS | OBD_MD_FLGROUP; rc = obd_setattr(sbi->ll_dt_exp, oa, lsm, NULL); obdo_free(oa); if (rc) { if (rc != -EPERM && rc != -EACCES) CERROR("md_setattr fails: rc = %d\n", rc); RETURN(rc); } if (flags & EXT3_APPEND_FL) inode->i_flags |= S_APPEND; else inode->i_flags &= ~S_APPEND; if (flags & EXT3_IMMUTABLE_FL) inode->i_flags |= S_IMMUTABLE; else inode->i_flags &= ~S_IMMUTABLE; if (flags & EXT3_NOATIME_FL) inode->i_flags |= S_NOATIME; else inode->i_flags &= ~S_NOATIME; RETURN(0); } default: RETURN(-ENOSYS); } RETURN(0); } /* this is only called in the case of forced umount. */ void ll_umount_begin(struct super_block *sb) { struct ll_sb_info *sbi = ll_s2sbi(sb); struct obd_ioctl_data ioc_data = { 0 }; struct obd_device *obd; ENTRY; CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb, sb->s_count, atomic_read(&sb->s_active)); obd = class_exp2obd(sbi->ll_md_exp); if (obd == NULL) { CERROR("Invalid MDC connection handle "LPX64"\n", sbi->ll_md_exp->exp_handle.h_cookie); EXIT; return; } obd->obd_no_recov = 1; obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp, sizeof(ioc_data), &ioc_data, NULL); obd = class_exp2obd(sbi->ll_dt_exp); if (obd == NULL) { CERROR("Invalid LOV connection handle "LPX64"\n", sbi->ll_dt_exp->exp_handle.h_cookie); EXIT; return; } obd->obd_no_recov = 1; obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp, sizeof(ioc_data), &ioc_data, NULL); /* * really, we'd like to wait until there are no requests outstanding, * and then continue. For now, we just invalidate the requests, * schedule, and hope. */ schedule(); EXIT; } int ll_prep_inode(struct obd_export *dt_exp, struct obd_export *md_exp, struct inode **inode, struct ptlrpc_request *req, int offset, struct super_block *sb) { struct lustre_md md; int rc = 0; rc = mdc_req2lustre_md(md_exp, req, offset, dt_exp, &md); if (rc) RETURN(rc); if (*inode) { ll_update_inode(*inode, &md); } else { LASSERT(sb); *inode = ll_iget(sb, id_ino(&md.body->id1), &md); if (*inode == NULL || is_bad_inode(*inode)) { /* free the lsm if we allocated one above */ if (md.lsm != NULL) obd_free_memmd(dt_exp, &md.lsm); if (md.mea != NULL) obd_free_memmd(md_exp, (struct lov_stripe_md**)&md.mea); rc = -ENOMEM; CERROR("new_inode -fatal: rc %d\n", rc); } } RETURN(rc); } int ll_get_fid(struct obd_export *exp, struct lustre_id *idp, char *filename, struct lustre_id *ret) { struct ptlrpc_request *request = NULL; struct mds_body *body; int rc; rc = md_getattr_lock(exp, idp, filename, strlen(filename) + 1, OBD_MD_FID, 0, &request); if (rc < 0) { CDEBUG(D_INFO, "md_getattr_lock failed on %s: rc %d\n", filename, rc); return rc; } body = lustre_msg_buf(request->rq_repmsg, 0, sizeof(*body)); LASSERT(body != NULL); LASSERT_REPSWABBED(request, 0); *ret = body->id1; ptlrpc_req_finished(request); return rc; }