/* -*- 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 #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); } static int lustre_connect_mds(struct super_block *sb, char *lmv, struct obd_connect_data *data, char *mds_security, int async, int pag) { struct ll_sb_info *sbi = ll_s2sbi(sb); struct lustre_handle md_conn = {0, }; struct obd_device *md_obd; struct obd_statfs osfs; unsigned long sec_flags; __u32 valsize; int err = 0; ENTRY; md_obd = class_name2obd(lmv); if (!md_obd) { CERROR("MDC %s: not setup or attached\n", lmv); RETURN(-EINVAL); } obd_set_info(md_obd->obd_self_export, strlen("async"), "async", sizeof(async), &async); err = obd_set_info(md_obd->obd_self_export, strlen("sec"), "sec", strlen(mds_security), mds_security); if (err) { CERROR("LMV %s: failed to set security %s, err %d\n", lmv, mds_security, err); RETURN(err); } if (pag) { sec_flags = PTLRPC_SEC_FL_PAG; err = obd_set_info(md_obd->obd_self_export, strlen("sec_flags"), "sec_flags", sizeof(sec_flags), &sec_flags); if (err) { OBD_FREE(data, sizeof(*data)); RETURN(err); } } err = obd_connect(&md_conn, md_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(md_obd, &osfs, jiffies - HZ); if (err) GOTO(out_disconnect, err); if (!osfs.os_bsize) { CERROR("Invalid block size is detected."); GOTO(out_disconnect, 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; /* in 2.6.x FS is not allowed to form s_dev */ #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) { kdev_t devno; 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; } #endif /* 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_disconnect, err); } out_disconnect: if (err) obd_disconnect(sbi->ll_md_exp, 0); out: RETURN(err); } static int lustre_connect_ost(struct super_block *sb, char *lov, struct obd_connect_data *data, char *oss_security, int async, int pag) { struct ll_sb_info *sbi = ll_s2sbi(sb); struct lustre_handle dt_conn = {0, }; struct obd_device *obd = NULL; unsigned long sec_flags; int err, mdsize; obd = class_name2obd(lov); if (!obd) { CERROR("OSC %s: not setup or attached\n", lov); GOTO(out, err = -EINVAL); } obd_set_info(obd->obd_self_export, strlen("async"), "async", sizeof(async), &async); if (oss_security == NULL) oss_security = "null"; err = obd_set_info(obd->obd_self_export, strlen("sec"), "sec", strlen(oss_security), oss_security); if (err) { CERROR("LOV %s: failed to set security %s, err %d\n", lov, oss_security, err); RETURN(err); } if (pag) { sec_flags = PTLRPC_SEC_FL_PAG; err = obd_set_info(obd->obd_self_export, strlen("sec_flags"), "sec_flags", sizeof(sec_flags), &sec_flags); if (err) { OBD_FREE(data, sizeof(*data)); RETURN(err); } } err = obd_connect(&dt_conn, obd, &sbi->ll_sb_uuid, data, 0); 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, err); } sbi->ll_dt_exp = class_conn2export(&dt_conn); err = lustre_init_dt_desc(sbi); if (err) { CWARN("init dt_desc error %d \n", err); GOTO(out, err = 0); } 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)); out: RETURN(err); } extern struct dentry_operations ll_d_ops; static int lustre_init_root_inode(struct super_block *sb) { struct ll_sb_info *sbi = ll_s2sbi(sb); struct ptlrpc_request *request = NULL; struct inode *root = NULL; struct lustre_md md; int err = 0; ENTRY; err = md_getstatus(sbi->ll_md_exp, &sbi->ll_rootid); if (err) { CERROR("cannot mds_connect: rc = %d\n", err); GOTO(out, err); } CDEBUG(D_SUPER, "rootid "DLID4"\n", OLID4(&sbi->ll_rootid)); sb->s_op = &lustre_super_operations; /* make root inode */ err = md_getattr(sbi->ll_md_exp, &sbi->ll_rootid, (OBD_MD_FLNOTOBD | OBD_MD_FLBLOCKS | OBD_MD_FID), NULL, NULL, 0, 0, &request); if (err) { CERROR("md_getattr failed for root: rc = %d\n", err); GOTO(out, 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, 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); } sb->s_root = d_alloc_root(root); sb->s_root->d_op = &ll_d_ops; out_root: if (err) iput(root); out: RETURN(err); } int lustre_common_fill_super(struct super_block *sb, char *lmv, char *lov, char *gkc, int async, char *mds_security, char *oss_security, __u32 *nllu, int pag, __u64 *remote) { struct ll_sb_info *sbi = ll_s2sbi(sb); struct obd_connect_data *data; int err; ENTRY; /*process the connect flags*/ 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 (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"); } /*connect mds */ err = lustre_connect_mds(sb, lmv, data, mds_security, async, pag); if (err) GOTO(out, err); /*connect OST*/ err = lustre_connect_ost(sb, lov, data, oss_security, async, pag); if (err) GOTO(out_lmv, err); err = lustre_init_crypto(sb, gkc, data, async); if (err) { CERROR("Could not connect to GSS err %d\n", err); err = 0; } /*connect GSS*/ err = lustre_init_root_inode(sb); if (err) GOTO(out_gks, err); 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_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 (sb->s_root) dput(sb->s_root); out_gks: lustre_destroy_crypto(sb); 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); lustre_destroy_crypto(sb); 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 **gkc, char **mds_sec, char **oss_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 (!*gkc && (*gkc = ll_read_opt("gkc", this_char))) continue; if (!strncmp(this_char, "lasync", strlen("lasync"))) { *async = 1; continue; } if (!*mds_sec && (*mds_sec = ll_read_opt("mds_sec", this_char))) continue; if (!*oss_sec && (*oss_sec = ll_read_opt("oss_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); INIT_LIST_HEAD(&lli->lli_close_item); 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; lli->lli_key_info = NULL; } int ll_fill_super(struct super_block *sb, void *data, int silent) { struct ll_sb_info *sbi; char *lov = NULL, *lmv = NULL, *gkc = NULL; char *mds_sec = NULL; char *oss_sec = NULL; int async, err; __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, &gkc, &mds_sec, &oss_sec, &async, &sbi->ll_flags); if (!lov || !lmv) { CERROR("no osc %p or no mdc %p\n", lov, lmv); GOTO(out, err = -EINVAL); } err = lustre_common_fill_super(sb, lmv, lov, gkc, async, mds_sec, oss_sec, nllu, 0, &remote_flag); EXIT; out: if (err) lustre_free_sbi(sb); if (lmv) OBD_FREE(lmv, strlen(lmv) + 1); if (lov) OBD_FREE(lov, strlen(lov) + 1); if (mds_sec) OBD_FREE(mds_sec, strlen(mds_sec) + 1); if (oss_sec) OBD_FREE(oss_sec, strlen(oss_sec) + 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, OBD_MDC_DEVICENAME); 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_mds_security), lmd->lmd_mds_security); if (rc) GOTO(out_cleanup, rc); if (lmd->lmd_pag) { unsigned long sec_flags = PTLRPC_SEC_FL_PAG; rc = obd_set_info(obd->obd_self_export, strlen("sec_flags"), "sec_flags", sizeof(sec_flags), &sec_flags); 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); } static int lustre_process_profile(struct super_block *sb, struct lustre_mount_data *lmd, char **lov, char **lmv, char **gkc) { struct ll_sb_info *sbi = ll_s2sbi(sb); struct lustre_profile *lprof; struct config_llog_instance cfg; int len, err = 0; ENTRY; if (!lmd->lmd_profile) RETURN(0); if (lmd->lmd_mds[0] == '\0') { CERROR("no mds name\n"); GOTO(out, err = -EINVAL); } lmd->lmd_mds_security[sizeof(lmd->lmd_mds_security) - 1] = 0; lmd->lmd_oss_security[sizeof(lmd->lmd_oss_security) - 1] = 0; OBD_ALLOC(sbi->ll_lmd, sizeof(*sbi->ll_lmd)); if (sbi->ll_lmd == NULL) GOTO(out, 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, 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, err); } lprof = class_get_profile(lmd->lmd_profile); if (lprof == NULL) { CERROR("No profile found: %s\n", lmd->lmd_profile); GOTO(out, err = -EINVAL); } OBD_ALLOC(*lov, strlen(lprof->lp_lov) + strlen(sbi->ll_instance) + 2); sprintf(*lov, "%s-%s", lprof->lp_lov, sbi->ll_instance); OBD_ALLOC(*lmv, strlen(lprof->lp_lmv) + strlen(sbi->ll_instance) + 2); sprintf(*lmv, "%s-%s", lprof->lp_lmv, sbi->ll_instance); if (lprof->lp_gkc) { OBD_ALLOC(*gkc, strlen(lprof->lp_gkc) + strlen(sbi->ll_instance) + 2); sprintf(*gkc, "%s-%s", lprof->lp_gkc, sbi->ll_instance); } out: RETURN(err); } static int lustre_clean_profile(struct ll_sb_info *sbi, int force_umount) { struct lustre_mount_data *lmd = sbi->ll_lmd; struct config_llog_instance cfg; char *cl_prof; int len, err = 0; ENTRY; if (!lmd) RETURN(err); len = strlen(sbi->ll_lmd->lmd_profile) + sizeof("-clean") + 1; if (force_umount) { CERROR("force umount, doing manual cleanup\n"); lustre_manual_cleanup(sbi); GOTO(free_lmd, 0); } if (sbi->ll_instance != NULL) { 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); } free_lmd: if (sbi->ll_instance) OBD_FREE(sbi->ll_instance, strlen(sbi->ll_instance) + 1); OBD_FREE(sbi->ll_lmd, sizeof(*sbi->ll_lmd)); RETURN(err); } int lustre_fill_super(struct super_block *sb, void *data, int silent) { struct lustre_mount_data * lmd = data; char *lov = NULL, *lmv = NULL, *gkc = 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; err = lustre_process_profile(sb, lmd, &lov, &lmv, &gkc); if (err) { CERROR("Can not process the profile err %d \n", err); GOTO(out_free, err); } if (!lov || !lmv) { CERROR("no osc %p or no mdc %p \n", lov, lmv); GOTO(out_free, err = -EINVAL); } err = lustre_common_fill_super(sb, lmv, lov, gkc, lmd->lmd_async, lmd->lmd_mds_security, lmd->lmd_oss_security, &lmd->lmd_nllu, lmd->lmd_pag, &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); if (gkc) OBD_FREE(gkc, strlen(gkc) + 1); RETURN(err); out_free: lustre_clean_profile(sbi, 0); lustre_free_sbi(sb); GOTO(out_dev, err); } /* 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); lustre_clean_profile(sbi, force_umount); lustre_free_sbi(sb); EXIT; } /* lustre_put_super */ int ll_process_config_update(struct ll_sb_info *sbi, int clean) { 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 = obd_cancel_unused(sbi->ll_md_exp, NULL, LDLM_FL_CONFIG_CHANGE, NULL); if (rc != 0) CWARN("obd_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(&sbi->ll_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(sbi->ll_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; /* NOTE: we depend on atomic igrab() -bzzz */ lock_res_and_lock(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 { struct timeval now; do_gettimeofday(&now); inode = lock->l_ast_data; LDLM_ERROR(lock, "granted at %lu.%lu, now %lu.%lu", lock->l_enqueued_time.tv_sec, lock->l_enqueued_time.tv_usec, now.tv_sec, now.tv_usec); 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); CDEBUG(D_ERROR, "i_state = 0x%lx, l_ast_data %p is bogus: magic %0x8\n", inode->i_state, lock->l_ast_data, lli->lli_inode_magic); inode = NULL; unlock_res_and_lock(lock); LBUG(); } } unlock_res_and_lock(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; } static void remote_acl_free(struct remote_acl *racl); 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); 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; } ll_crypto_destroy_inode_key(inode); if (lli->lli_symlink_name) { OBD_FREE(lli->lli_symlink_name, strlen(lli->lli_symlink_name) + 1); lli->lli_symlink_name = NULL; } if (lli->lli_posix_acl) { LASSERT(lli->lli_remote_acl == NULL); posix_acl_release(lli->lli_posix_acl); lli->lli_posix_acl = NULL; } if (lli->lli_remote_acl) { LASSERT(lli->lli_posix_acl == NULL); remote_acl_free(lli->lli_remote_acl); lli->lli_remote_acl = 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_inode_info *lli = ll_i2info(inode); 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; void *key = NULL; int key_size = 0; OBD_ALLOC(op_data, sizeof(*op_data)); if (op_data == NULL) RETURN(-ENOMEM); ll_prepare_mdc_data(op_data, inode, NULL, NULL, 0, 0); if (ia_valid & (ATTR_UID | ATTR_GID)) { rc = ll_crypto_get_mac(inode, attr, NULL, 0, &key, &key_size); } rc = md_setattr(sbi->ll_md_exp, op_data, attr, key, key_size, NULL, 0, NULL, 0, &request); OBD_FREE(op_data, sizeof(*op_data)); if (key && key_size) OBD_FREE(key, key_size); 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 }; 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 | ATTR_UID | ATTR_GID)) { 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; /* adding uid and gid, needed for quota */ if (ia_valid & ATTR_UID) { oa->o_uid = inode->i_uid; oa->o_valid |= OBD_MD_FLUID; } if (ia_valid & ATTR_GID) { oa->o_gid = inode->i_gid; oa->o_valid |= OBD_MD_FLGID; } *(obdo_id(oa)) = lli->lli_id; oa->o_valid |= OBD_MD_FLIFID; 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; } /******************************** * remote acl * ********************************/ static struct remote_acl *remote_acl_alloc(void) { struct remote_acl *racl; int i; OBD_ALLOC(racl, sizeof(*racl)); if (!racl) return NULL; spin_lock_init(&racl->ra_lock); init_MUTEX(&racl->ra_update_sem); for (i = 0; i < REMOTE_ACL_HASHSIZE; i++) INIT_LIST_HEAD(&racl->ra_perm_cache[i]); return racl; } /* * caller should guarantee no race here. */ static void remote_perm_flush_xperms(struct lustre_remote_perm *perm) { struct remote_perm_setxid *xperm; while (!list_empty(&perm->lrp_setxid_perms)) { xperm = list_entry(perm->lrp_setxid_perms.next, struct remote_perm_setxid, list); list_del(&xperm->list); OBD_FREE(xperm, sizeof(*xperm)); } } /* * caller should guarantee no race here. */ static void remote_acl_flush(struct remote_acl *racl) { struct list_head *head; struct lustre_remote_perm *perm, *tmp; int i; for (i = 0; i < REMOTE_ACL_HASHSIZE; i++) { head = &racl->ra_perm_cache[i]; list_for_each_entry_safe(perm, tmp, head, lrp_list) { remote_perm_flush_xperms(perm); list_del(&perm->lrp_list); OBD_FREE(perm, sizeof(*perm)); } } } static void remote_acl_free(struct remote_acl *racl) { if (!racl) return; down(&racl->ra_update_sem); spin_lock(&racl->ra_lock); remote_acl_flush(racl); spin_unlock(&racl->ra_lock); up(&racl->ra_update_sem); OBD_FREE(racl, sizeof(*racl)); } static inline int remote_acl_hashfunc(__u32 id) { return (id & (REMOTE_ACL_HASHSIZE - 1)); } static int __remote_acl_check(struct remote_acl *racl, unsigned int *perm) { struct list_head *head; struct lustre_remote_perm *lperm; struct remote_perm_setxid *xperm; int found = 0, rc = -ENOENT; LASSERT(racl); head = &racl->ra_perm_cache[remote_acl_hashfunc(current->uid)]; spin_lock(&racl->ra_lock); list_for_each_entry(lperm, head, lrp_list) { if (lperm->lrp_auth_uid == current->uid) { found = 1; break; } } if (!found) goto out; if (lperm->lrp_auth_uid == current->fsuid && lperm->lrp_auth_gid == current->fsgid) { if (lperm->lrp_valid) { *perm = lperm->lrp_perm; rc = 0; } goto out; } else if ((!lperm->lrp_setuid && lperm->lrp_auth_uid != current->fsuid) || (!lperm->lrp_setgid && lperm->lrp_auth_gid != current->fsgid)) { *perm = 0; rc = 0; goto out; } list_for_each_entry(xperm, &lperm->lrp_setxid_perms, list) { if (xperm->uid == current->fsuid && xperm->gid == current->fsgid) { *perm = xperm->perm; rc = 0; goto out; } } out: spin_unlock(&racl->ra_lock); return rc; } static int __remote_acl_update(struct remote_acl *racl, struct mds_remote_perm *mperm, struct lustre_remote_perm *lperm, struct remote_perm_setxid *xperm) { struct list_head *head; struct lustre_remote_perm *lp; struct remote_perm_setxid *xp; int found = 0, setuid = 0, setgid = 0; LASSERT(racl); LASSERT(mperm); LASSERT(lperm); LASSERT(current->uid == mperm->mrp_auth_uid); if (current->fsuid != mperm->mrp_auth_uid) setuid = 1; if (current->fsgid != mperm->mrp_auth_gid) setgid = 1; head = &racl->ra_perm_cache[remote_acl_hashfunc(current->uid)]; spin_lock(&racl->ra_lock); list_for_each_entry(lp, head, lrp_list) { if (lp->lrp_auth_uid == current->uid) { found = 1; break; } } if (found) { OBD_FREE(lperm, sizeof(*lperm)); if (!lp->lrp_valid && !setuid && !setgid) { lp->lrp_perm = mperm->mrp_perm; lp->lrp_valid = 1; } /* sanity check for changes of setxid rules */ if ((lp->lrp_setuid != 0) != (mperm->mrp_allow_setuid != 0)) { CWARN("setuid changes: %d => %d\n", (lp->lrp_setuid != 0), (mperm->mrp_allow_setuid != 0)); lp->lrp_setuid = (mperm->mrp_allow_setuid != 0); } if ((lp->lrp_setgid != 0) != (mperm->mrp_allow_setgid != 0)) { CWARN("setgid changes: %d => %d\n", (lp->lrp_setgid != 0), (mperm->mrp_allow_setgid != 0)); lp->lrp_setgid = (mperm->mrp_allow_setgid != 0); } if (!lp->lrp_setuid && !lp->lrp_setgid && !list_empty(&lp->lrp_setxid_perms)) { remote_perm_flush_xperms(lp); } } else { /* initialize lperm and linked into hashtable */ INIT_LIST_HEAD(&lperm->lrp_setxid_perms); lperm->lrp_auth_uid = mperm->mrp_auth_uid; lperm->lrp_auth_gid = mperm->mrp_auth_gid; lperm->lrp_setuid = (mperm->mrp_allow_setuid != 0); lperm->lrp_setgid = (mperm->mrp_allow_setgid != 0); list_add(&lperm->lrp_list, head); if (!setuid && !setgid) { /* in this case, i'm the authenticated user, * and mrp_perm is for me. */ lperm->lrp_perm = mperm->mrp_perm; lperm->lrp_valid = 1; spin_unlock(&racl->ra_lock); if (xperm) OBD_FREE(xperm, sizeof(*xperm)); return 0; } lp = lperm; /* fall through */ } LASSERT(lp->lrp_setuid || lp->lrp_setgid || list_empty(&lp->lrp_setxid_perms)); /* if no xperm supplied, we are all done here */ if (!xperm) { spin_unlock(&racl->ra_lock); return 0; } /* whether we allow setuid/setgid */ if ((!lp->lrp_setuid && setuid) || (!lp->lrp_setgid && setgid)) { OBD_FREE(xperm, sizeof(*xperm)); spin_unlock(&racl->ra_lock); return 0; } /* traverse xperm list */ list_for_each_entry(xp, &lp->lrp_setxid_perms, list) { if (xp->uid == current->fsuid && xp->gid == current->fsgid) { if (xp->perm != mperm->mrp_perm) { /* actually this should not happen */ CWARN("perm changed: %o => %o\n", xp->perm, mperm->mrp_perm); xp->perm = mperm->mrp_perm; } OBD_FREE(xperm, sizeof(*xperm)); spin_unlock(&racl->ra_lock); return 0; } } /* finally insert this xperm */ xperm->uid = current->fsuid; xperm->gid = current->fsgid; xperm->perm = mperm->mrp_perm; list_add(&xperm->list, &lp->lrp_setxid_perms); spin_unlock(&racl->ra_lock); return 0; } /* * remote_acl semaphore must be held by caller */ static int remote_acl_update_locked(struct remote_acl *racl, struct mds_remote_perm *mperm) { struct lustre_remote_perm *lperm; struct remote_perm_setxid *xperm; int setuid = 0, setgid = 0; might_sleep(); if (current->uid != mperm->mrp_auth_uid) { CERROR("current uid %u while authenticated as %u\n", current->uid, mperm->mrp_auth_uid); return -EINVAL; } if (current->fsuid != mperm->mrp_auth_uid) setuid = 1; if (current->fsgid == mperm->mrp_auth_gid) setgid = 1; OBD_ALLOC(lperm, sizeof(*lperm)); if (!lperm) return -ENOMEM; if ((setuid || setgid) && !(setuid && !mperm->mrp_allow_setuid) && !(setgid && !mperm->mrp_allow_setgid)) { OBD_ALLOC(xperm, sizeof(*xperm)); if (!xperm) { OBD_FREE(lperm, sizeof(*lperm)); return -ENOMEM; } } else xperm = NULL; return __remote_acl_update(racl, mperm, lperm, xperm); } /* * return -EACCES at any error cases */ int ll_remote_acl_permission(struct inode *inode, int mode) { struct ll_sb_info *sbi = ll_i2sbi(inode); struct remote_acl *racl = ll_i2info(inode)->lli_remote_acl; struct ptlrpc_request *req = NULL; struct lustre_id id; struct mds_remote_perm *mperm; int rc = -EACCES, perm; if (!racl) return -EACCES; if (__remote_acl_check(racl, &perm) == 0) { return ((perm & mode) == mode ? 0 : -EACCES); } might_sleep(); /* doing update */ down(&racl->ra_update_sem); /* we might lose the race when obtain semaphore, * so check again. */ if (__remote_acl_check(racl, &perm) == 0) { if ((perm & mode) == mode) rc = 0; goto out; } /* really fetch from mds */ ll_inode2id(&id, inode); if (md_access_check(sbi->ll_md_exp, &id, &req)) goto out; /* status non-zero indicate there's more apparent error * detected by mds, e.g. didn't allow this user at all. * we simply ignore and didn't cache it. */ if (req->rq_repmsg->status) goto out; mperm = lustre_swab_repbuf(req, 1, sizeof(*mperm), lustre_swab_remote_perm); LASSERT(mperm); LASSERT_REPSWABBED(req, 1); if ((mperm->mrp_perm & mode) == mode) rc = 0; remote_acl_update_locked(racl, mperm); out: if (req) ptlrpc_req_finished(req); up(&racl->ra_update_sem); return rc; } int ll_remote_acl_update(struct inode *inode, struct mds_remote_perm *perm) { struct remote_acl *racl = ll_i2info(inode)->lli_remote_acl; int rc; LASSERT(perm); if (!racl) return -EACCES; down(&racl->ra_update_sem); rc = remote_acl_update_locked(racl, perm); up(&racl->ra_update_sem); return rc; } void ll_inode_invalidate_acl(struct inode *inode) { struct ll_sb_info *sbi = ll_i2sbi(inode); struct ll_inode_info *lli = ll_i2info(inode); if (sbi->ll_remote) { struct remote_acl *racl = lli->lli_remote_acl; LASSERT(!lli->lli_posix_acl); if (racl) { down(&racl->ra_update_sem); spin_lock(&racl->ra_lock); remote_acl_flush(lli->lli_remote_acl); spin_unlock(&racl->ra_lock); up(&racl->ra_update_sem); } } else { LASSERT(!lli->lli_remote_acl); spin_lock(&lli->lli_lock); posix_acl_release(lli->lli_posix_acl); lli->lli_posix_acl = NULL; spin_unlock(&lli->lli_lock); } } 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 *posix_acl = md->posix_acl; struct ll_sb_info *sbi = ll_i2sbi(inode); struct lustre_key *mkey = md->key; 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); /* local/remote ACL */ if (sbi->ll_remote) { LASSERT(md->posix_acl == NULL); if (md->remote_perm) { ll_remote_acl_update(inode, md->remote_perm); OBD_FREE(md->remote_perm, sizeof(*md->remote_perm)); md->remote_perm = NULL; } } else { LASSERT(md->remote_perm == NULL); spin_lock(&lli->lli_lock); if (posix_acl != NULL) { if (lli->lli_posix_acl != NULL) posix_acl_release(lli->lli_posix_acl); lli->lli_posix_acl = posix_acl; } 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 (mkey != NULL) { LASSERT(body->valid & OBD_MD_FLKEY); ll_crypto_init_inode_key(inode, mkey); } #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); if (ll_i2sbi(inode)->ll_remote) { lli->lli_remote_acl = remote_acl_alloc(); /* if failed alloc, nobody will be able to access this inode */ } /* 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, 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, 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; *(obdo_id(oa)) = ll_i2info(inode)->lli_id; oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS | OBD_MD_FLGROUP | OBD_MD_FLIFID; 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_show_options(struct seq_file *m, struct vfsmount *mnt) { struct ll_sb_info *sbi = ll_s2sbi(mnt->mnt_sb); struct lustre_mount_data *lmd = sbi->ll_lmd; if (lmd) { seq_printf(m, ",mds_sec=%s,oss_sec=%s", lmd->lmd_mds_security, lmd->lmd_oss_security); } seq_printf(m, ",%s", sbi->ll_remote ? "remote" : "local"); if (sbi->ll_remote && lmd) seq_printf(m, ",nllu=%u:%u", lmd->lmd_nllu, lmd->lmd_nllg); if (lmd && lmd->lmd_pag) seq_printf(m, ",pag"); return 0; } 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; } int ll_flush_cred(struct inode *inode) { struct ll_sb_info *sbi = ll_i2sbi(inode); int rc = 0; /* XXX to avoid adding api, we simply use set_info() interface * to notify underlying obds. set_info() is more like a ioctl() now... */ if (sbi->ll_md_exp) { rc = obd_set_info(sbi->ll_md_exp, strlen("flush_cred"), "flush_cred", 0, NULL); if (rc) return rc; } if (sbi->ll_dt_exp) { rc = obd_set_info(sbi->ll_dt_exp, strlen("flush_cred"), "flush_cred", 0, NULL); if (rc) return rc; } return rc; }