X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fobdclass%2Fobd_config.c;h=9220ac706734ac36d0ea993b1d577f6cd2746892;hb=f52ece3201af131a7bb8a7b2766d3f0a98c00fca;hp=2a0b0f857aff355e70d5c0f340cb9c3c87bb1cb2;hpb=ea5a2ff5788033878dbbeaf52cd1138f4938f970;p=fs%2Flustre-release.git diff --git a/lustre/obdclass/obd_config.c b/lustre/obdclass/obd_config.c index 2a0b0f8..9220ac7 100644 --- a/lustre/obdclass/obd_config.c +++ b/lustre/obdclass/obd_config.c @@ -1,6 +1,4 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: - * +/* * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. @@ -26,8 +24,10 @@ * GPL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved + * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. + * + * Copyright (c) 2011, Whamcloud, Inc. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -44,18 +44,17 @@ #include #else #include +#include #include #include #endif -#include -#include -#include #include -#include -static lustre_hash_ops_t uuid_hash_ops; -static lustre_hash_ops_t nid_hash_ops; -static lustre_hash_ops_t nid_stat_hash_ops; +#include "llog_internal.h" + +static cfs_hash_ops_t uuid_hash_ops; +static cfs_hash_ops_t nid_hash_ops; +static cfs_hash_ops_t nid_stat_hash_ops; /*********** string parsing utils *********/ @@ -75,6 +74,48 @@ int class_find_param(char *buf, char *key, char **valp) return 0; } +EXPORT_SYMBOL(class_find_param); + +/** + * Check whether the proc parameter \a param is an old parameter or not from + * the array \a ptr which contains the mapping from old parameters to new ones. + * If it's an old one, then return the pointer to the cfg_interop_param struc- + * ture which contains both the old and new parameters. + * + * \param param proc parameter + * \param ptr an array which contains the mapping from + * old parameters to new ones + * + * \retval valid-pointer pointer to the cfg_interop_param structure + * which contains the old and new parameters + * \retval NULL \a param or \a ptr is NULL, + * or \a param is not an old parameter + */ +struct cfg_interop_param *class_find_old_param(const char *param, + struct cfg_interop_param *ptr) +{ + char *value = NULL; + int name_len = 0; + + if (param == NULL || ptr == NULL) + RETURN(NULL); + + value = strchr(param, '='); + if (value == NULL) + name_len = strlen(param); + else + name_len = value - param; + + while (ptr->old_param != NULL) { + if (strncmp(param, ptr->old_param, name_len) == 0 && + name_len == strlen(ptr->old_param)) + RETURN(ptr); + ptr++; + } + + RETURN(NULL); +} +EXPORT_SYMBOL(class_find_old_param); /** * Finds a parameter in \a params and copies it to \a copy. @@ -141,6 +182,7 @@ int class_get_next_param(char **params, char *copy) } return 1; } +EXPORT_SYMBOL(class_get_next_param); /* returns 0 if this is the first key in the buffer, else 1. valp points to first char after key. */ @@ -157,14 +199,43 @@ int class_match_param(char *buf, char *key, char **valp) return 0; } +EXPORT_SYMBOL(class_match_param); + +static int parse_nid(char *buf, void *value) +{ + lnet_nid_t *nid = (lnet_nid_t *)value; + + *nid = libcfs_str2nid(buf); + if (*nid != LNET_NID_ANY) + return 0; + + LCONSOLE_ERROR_MSG(0x159, "Can't parse NID '%s'\n", buf); + return -EINVAL; +} + +static int parse_net(char *buf, void *value) +{ + __u32 *net = (__u32 *)value; + + *net = libcfs_str2net(buf); + CDEBUG(D_INFO, "Net %s\n", libcfs_net2str(*net)); + return 0; +} + +enum { + CLASS_PARSE_NID = 1, + CLASS_PARSE_NET, +}; /* 0 is good nid, 1 not found < 0 error endh is set to next separator */ -int class_parse_nid(char *buf, lnet_nid_t *nid, char **endh) +static int class_parse_value(char *buf, int opc, void *value, char **endh) { - char tmp, *endp; + char *endp; + char tmp; + int rc = 0; if (!buf) return 1; @@ -180,30 +251,81 @@ int class_parse_nid(char *buf, lnet_nid_t *nid, char **endh) tmp = *endp; *endp = '\0'; - *nid = libcfs_str2nid(buf); - if (*nid == LNET_NID_ANY) { - LCONSOLE_ERROR_MSG(0x159, "Can't parse NID '%s'\n", buf); - *endp = tmp; - return -EINVAL; + switch (opc) { + default: + LBUG(); + case CLASS_PARSE_NID: + rc = parse_nid(buf, value); + break; + case CLASS_PARSE_NET: + rc = parse_net(buf, value); + break; } *endp = tmp; - + if (rc != 0) + return rc; if (endh) *endh = endp; - CDEBUG(D_INFO, "Nid %s\n", libcfs_nid2str(*nid)); return 0; } -EXPORT_SYMBOL(class_find_param); -EXPORT_SYMBOL(class_get_next_param); -EXPORT_SYMBOL(class_match_param); +int class_parse_nid(char *buf, lnet_nid_t *nid, char **endh) +{ + return class_parse_value(buf, CLASS_PARSE_NID, (void *)nid, endh); +} EXPORT_SYMBOL(class_parse_nid); +int class_parse_net(char *buf, __u32 *net, char **endh) +{ + return class_parse_value(buf, CLASS_PARSE_NET, (void *)net, endh); +} +EXPORT_SYMBOL(class_parse_net); + +/* 1 param contains key and match + * 0 param contains key and not match + * -1 param does not contain key + */ +int class_match_nid(char *buf, char *key, lnet_nid_t nid) +{ + lnet_nid_t tmp; + int rc = -1; + + while (class_find_param(buf, key, &buf) == 0) { + /* please restrict to the nids pertaining to + * the specified nids */ + while (class_parse_nid(buf, &tmp, &buf) == 0) { + if (tmp == nid) + return 1; + } + rc = 0; + } + return rc; +} +EXPORT_SYMBOL(class_match_nid); + +int class_match_net(char *buf, char *key, __u32 net) +{ + __u32 tmp; + int rc = -1; + + while (class_find_param(buf, key, &buf) == 0) { + /* please restrict to the nids pertaining to + * the specified networks */ + while (class_parse_net(buf, &tmp, &buf) == 0) { + if (tmp == net) + return 1; + } + rc = 0; + } + return rc; +} +EXPORT_SYMBOL(class_match_net); + /********************** class fns **********************/ /** - * Create a new device and set the type, name and uuid. If successful, the new - * device can be accessed by either name or uuid. + * Create a new obd device and set the type, name and uuid. If successful, + * the new device can be accessed by either name or uuid. */ int class_attach(struct lustre_cfg *lcfg) { @@ -250,7 +372,7 @@ int class_attach(struct lustre_cfg *lcfg) LASSERTF(strncmp(obd->obd_name, name, strlen(name)) == 0, "%p obd_name %s != %s\n", obd, obd->obd_name, name); - rwlock_init(&obd->obd_pool_lock); + cfs_rwlock_init(&obd->obd_pool_lock); obd->obd_pool_limit = 0; obd->obd_pool_slv = 0; @@ -259,25 +381,29 @@ int class_attach(struct lustre_cfg *lcfg) CFS_INIT_LIST_HEAD(&obd->obd_delayed_exports); CFS_INIT_LIST_HEAD(&obd->obd_exports_timed); CFS_INIT_LIST_HEAD(&obd->obd_nid_stats); - spin_lock_init(&obd->obd_nid_lock); - spin_lock_init(&obd->obd_dev_lock); - sema_init(&obd->obd_dev_sem, 1); - spin_lock_init(&obd->obd_osfs_lock); + cfs_spin_lock_init(&obd->obd_nid_lock); + cfs_spin_lock_init(&obd->obd_dev_lock); + cfs_mutex_init(&obd->obd_dev_mutex); + cfs_spin_lock_init(&obd->obd_osfs_lock); /* obd->obd_osfs_age must be set to a value in the distant * past to guarantee a fresh statfs is fetched on mount. */ obd->obd_osfs_age = cfs_time_shift_64(-1000); /* XXX belongs in setup not attach */ + cfs_init_rwsem(&obd->obd_observer_link_sem); /* recovery data */ cfs_init_timer(&obd->obd_recovery_timer); - spin_lock_init(&obd->obd_processing_task_lock); + cfs_spin_lock_init(&obd->obd_recovery_task_lock); cfs_waitq_init(&obd->obd_next_transno_waitq); cfs_waitq_init(&obd->obd_evict_inprogress_waitq); CFS_INIT_LIST_HEAD(&obd->obd_req_replay_queue); CFS_INIT_LIST_HEAD(&obd->obd_lock_replay_queue); CFS_INIT_LIST_HEAD(&obd->obd_final_req_queue); + CFS_INIT_LIST_HEAD(&obd->obd_evict_list); + + llog_group_init(&obd->obd_olg, FID_SEQ_LLOG); - llog_group_init(&obd->obd_olg, FILTER_GROUP_LLOG); + obd->obd_conn_inprogress = 0; len = strlen(uuid); if (len >= sizeof(obd->obd_uuid)) { @@ -295,15 +421,15 @@ int class_attach(struct lustre_cfg *lcfg) } /* Detach drops this */ - spin_lock(&obd->obd_dev_lock); - atomic_set(&obd->obd_refcount, 1); - spin_unlock(&obd->obd_dev_lock); + cfs_spin_lock(&obd->obd_dev_lock); + cfs_atomic_set(&obd->obd_refcount, 1); + cfs_spin_unlock(&obd->obd_dev_lock); lu_ref_init(&obd->obd_reference); lu_ref_add(&obd->obd_reference, "attach", obd); obd->obd_attached = 1; CDEBUG(D_IOCTL, "OBD: dev %d attached type %s with refcount %d\n", - obd->obd_minor, typename, atomic_read(&obd->obd_refcount)); + obd->obd_minor, typename, cfs_atomic_read(&obd->obd_refcount)); RETURN(0); out: if (obd != NULL) { @@ -311,7 +437,11 @@ int class_attach(struct lustre_cfg *lcfg) } return rc; } +EXPORT_SYMBOL(class_attach); +/** Create hashes, self-export, and call type-specific setup. + * Setup is effectively the "start this obd" call. + */ int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg) { int err = 0; @@ -339,9 +469,9 @@ int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg) } /* is someone else setting us up right now? (attach inits spinlock) */ - spin_lock(&obd->obd_dev_lock); + cfs_spin_lock(&obd->obd_dev_lock); if (obd->obd_starting) { - spin_unlock(&obd->obd_dev_lock); + cfs_spin_unlock(&obd->obd_dev_lock); CERROR("Device %d setup in progress (type %s)\n", obd->obd_minor, obd->obd_type->typ_name); RETURN(-EEXIST); @@ -352,29 +482,38 @@ int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg) obd->obd_uuid_hash = NULL; obd->obd_nid_hash = NULL; obd->obd_nid_stats_hash = NULL; - spin_unlock(&obd->obd_dev_lock); + cfs_spin_unlock(&obd->obd_dev_lock); /* create an uuid-export lustre hash */ - obd->obd_uuid_hash = lustre_hash_init("UUID_HASH", - HASH_UUID_CUR_BITS, - HASH_UUID_MAX_BITS, - &uuid_hash_ops, 0); + obd->obd_uuid_hash = cfs_hash_create("UUID_HASH", + HASH_UUID_CUR_BITS, + HASH_UUID_MAX_BITS, + HASH_UUID_BKT_BITS, 0, + CFS_HASH_MIN_THETA, + CFS_HASH_MAX_THETA, + &uuid_hash_ops, CFS_HASH_DEFAULT); if (!obd->obd_uuid_hash) GOTO(err_hash, err = -ENOMEM); /* create a nid-export lustre hash */ - obd->obd_nid_hash = lustre_hash_init("NID_HASH", - HASH_NID_CUR_BITS, - HASH_NID_MAX_BITS, - &nid_hash_ops, 0); + obd->obd_nid_hash = cfs_hash_create("NID_HASH", + HASH_NID_CUR_BITS, + HASH_NID_MAX_BITS, + HASH_NID_BKT_BITS, 0, + CFS_HASH_MIN_THETA, + CFS_HASH_MAX_THETA, + &nid_hash_ops, CFS_HASH_DEFAULT); if (!obd->obd_nid_hash) GOTO(err_hash, err = -ENOMEM); /* create a nid-stats lustre hash */ - obd->obd_nid_stats_hash = lustre_hash_init("NID_STATS", - HASH_NID_STATS_CUR_BITS, - HASH_NID_STATS_MAX_BITS, - &nid_stat_hash_ops, 0); + obd->obd_nid_stats_hash = cfs_hash_create("NID_STATS", + HASH_NID_STATS_CUR_BITS, + HASH_NID_STATS_MAX_BITS, + HASH_NID_STATS_BKT_BITS, 0, + CFS_HASH_MIN_THETA, + CFS_HASH_MAX_THETA, + &nid_stat_hash_ops, CFS_HASH_DEFAULT); if (!obd->obd_nid_stats_hash) GOTO(err_hash, err = -ENOMEM); @@ -383,7 +522,7 @@ int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg) GOTO(err_hash, err = PTR_ERR(exp)); obd->obd_self_export = exp; - list_del_init(&exp->exp_obd_chain_timed); + cfs_list_del_init(&exp->exp_obd_chain_timed); class_export_put(exp); err = obd_setup(obd, lcfg); @@ -392,10 +531,10 @@ int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg) obd->obd_set_up = 1; - spin_lock(&obd->obd_dev_lock); + cfs_spin_lock(&obd->obd_dev_lock); /* cleanup drops this */ class_incref(obd, "setup", obd); - spin_unlock(&obd->obd_dev_lock); + cfs_spin_unlock(&obd->obd_dev_lock); CDEBUG(D_IOCTL, "finished setup of obd %s (uuid %s)\n", obd->obd_name, obd->obd_uuid.uuid); @@ -408,22 +547,26 @@ err_exp: } err_hash: if (obd->obd_uuid_hash) { - lustre_hash_exit(obd->obd_uuid_hash); + cfs_hash_putref(obd->obd_uuid_hash); obd->obd_uuid_hash = NULL; } if (obd->obd_nid_hash) { - lustre_hash_exit(obd->obd_nid_hash); + cfs_hash_putref(obd->obd_nid_hash); obd->obd_nid_hash = NULL; } if (obd->obd_nid_stats_hash) { - lustre_hash_exit(obd->obd_nid_stats_hash); + cfs_hash_putref(obd->obd_nid_stats_hash); obd->obd_nid_stats_hash = NULL; } obd->obd_starting = 0; CERROR("setup %s failed (%d)\n", obd->obd_name, err); return err; } +EXPORT_SYMBOL(class_setup); +/** We have finished using this obd and are ready to destroy it. + * There can be no more references to this obd. + */ int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg) { ENTRY; @@ -433,26 +576,27 @@ int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg) RETURN(-EBUSY); } - spin_lock(&obd->obd_dev_lock); + cfs_spin_lock(&obd->obd_dev_lock); if (!obd->obd_attached) { - spin_unlock(&obd->obd_dev_lock); + cfs_spin_unlock(&obd->obd_dev_lock); CERROR("OBD device %d not attached\n", obd->obd_minor); RETURN(-ENODEV); } obd->obd_attached = 0; - spin_unlock(&obd->obd_dev_lock); + cfs_spin_unlock(&obd->obd_dev_lock); CDEBUG(D_IOCTL, "detach on obd %s (uuid %s)\n", obd->obd_name, obd->obd_uuid.uuid); class_decref(obd, "attach", obd); - - /* not strictly necessary, but cleans up eagerly */ - obd_zombie_impexp_cull(); - RETURN(0); } +EXPORT_SYMBOL(class_detach); +/** Start shutting down the obd. There may be in-progess ops when + * this is called. We tell them to start shutting down with a call + * to class_disconnect_exports(). + */ int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg) { int err = 0; @@ -466,15 +610,24 @@ int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg) RETURN(-ENODEV); } - spin_lock(&obd->obd_dev_lock); + cfs_spin_lock(&obd->obd_dev_lock); if (obd->obd_stopping) { - spin_unlock(&obd->obd_dev_lock); + cfs_spin_unlock(&obd->obd_dev_lock); CERROR("OBD %d already stopping\n", obd->obd_minor); RETURN(-ENODEV); } /* Leave this on forever */ obd->obd_stopping = 1; - spin_unlock(&obd->obd_dev_lock); + + /* wait for already-arrived-connections to finish. */ + while (obd->obd_conn_inprogress > 0) { + cfs_spin_unlock(&obd->obd_dev_lock); + + cfs_cond_resched(); + + cfs_spin_lock(&obd->obd_dev_lock); + } + cfs_spin_unlock(&obd->obd_dev_lock); if (lcfg->lcfg_bufcount >= 2 && LUSTRE_CFG_BUFLEN(lcfg, 1) > 0) { for (flag = lustre_cfg_string(lcfg, 1); *flag != 0; flag++) @@ -492,10 +645,6 @@ int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg) obd_iocontrol(OBD_IOC_SYNC, obd->obd_self_export, 0, NULL, NULL); - /* Set the obd readonly if we can */ - obd_iocontrol(OBD_IOC_SET_READONLY, - obd->obd_self_export, - 0, NULL, NULL); } break; default: @@ -507,65 +656,68 @@ int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg) /* The three references that should be remaining are the * obd_self_export and the attach and setup references. */ - if (atomic_read(&obd->obd_refcount) > 3) { + if (cfs_atomic_read(&obd->obd_refcount) > 3) { /* refcounf - 3 might be the number of real exports (excluding self export). But class_incref is called by other things as well, so don't count on it. */ CDEBUG(D_IOCTL, "%s: forcing exports to disconnect: %d\n", - obd->obd_name, atomic_read(&obd->obd_refcount) - 3); - dump_exports(obd); + obd->obd_name, cfs_atomic_read(&obd->obd_refcount) - 3); + dump_exports(obd, 0); class_disconnect_exports(obd); } + /* Precleanup, we must make sure all exports get destroyed. */ + err = obd_precleanup(obd, OBD_CLEANUP_EXPORTS); + if (err) + CERROR("Precleanup %s returned %d\n", + obd->obd_name, err); + /* destroy an uuid-export hash body */ if (obd->obd_uuid_hash) { - lustre_hash_exit(obd->obd_uuid_hash); + cfs_hash_putref(obd->obd_uuid_hash); obd->obd_uuid_hash = NULL; } /* destroy a nid-export hash body */ if (obd->obd_nid_hash) { - lustre_hash_exit(obd->obd_nid_hash); + cfs_hash_putref(obd->obd_nid_hash); obd->obd_nid_hash = NULL; } /* destroy a nid-stats hash body */ if (obd->obd_nid_stats_hash) { - lustre_hash_exit(obd->obd_nid_stats_hash); + cfs_hash_putref(obd->obd_nid_stats_hash); obd->obd_nid_stats_hash = NULL; } - /* Precleanup, we must make sure all exports get destroyed. */ - err = obd_precleanup(obd, OBD_CLEANUP_EXPORTS); - if (err) - CERROR("Precleanup %s returned %d\n", - obd->obd_name, err); class_decref(obd, "setup", obd); obd->obd_set_up = 0; + RETURN(0); } +EXPORT_SYMBOL(class_cleanup); struct obd_device *class_incref(struct obd_device *obd, const char *scope, const void *source) { - LASSERT(!obd->obd_stopping); lu_ref_add_atomic(&obd->obd_reference, scope, source); - atomic_inc(&obd->obd_refcount); + cfs_atomic_inc(&obd->obd_refcount); CDEBUG(D_INFO, "incref %s (%p) now %d\n", obd->obd_name, obd, - atomic_read(&obd->obd_refcount)); + cfs_atomic_read(&obd->obd_refcount)); return obd; } +EXPORT_SYMBOL(class_incref); void class_decref(struct obd_device *obd, const char *scope, const void *source) { int err; int refs; - spin_lock(&obd->obd_dev_lock); - atomic_dec(&obd->obd_refcount); - refs = atomic_read(&obd->obd_refcount); - spin_unlock(&obd->obd_dev_lock); + cfs_spin_lock(&obd->obd_dev_lock); + cfs_atomic_dec(&obd->obd_refcount); + refs = cfs_atomic_read(&obd->obd_refcount); + cfs_spin_unlock(&obd->obd_dev_lock); lu_ref_del(&obd->obd_reference, scope, source); CDEBUG(D_INFO, "Decref %s (%p) now %d\n", obd->obd_name, obd, refs); @@ -574,9 +726,9 @@ void class_decref(struct obd_device *obd, const char *scope, const void *source) /* All exports have been destroyed; there should be no more in-progress ops by this point.*/ - spin_lock(&obd->obd_self_export->exp_lock); + cfs_spin_lock(&obd->obd_self_export->exp_lock); obd->obd_self_export->exp_flags |= exp_flags_from_obd(obd); - spin_unlock(&obd->obd_self_export->exp_lock); + cfs_spin_unlock(&obd->obd_self_export->exp_lock); /* note that we'll recurse into class_decref again */ class_unlink_export(obd->obd_self_export); @@ -602,7 +754,11 @@ void class_decref(struct obd_device *obd, const char *scope, const void *source) class_release_dev(obd); } } +EXPORT_SYMBOL(class_decref); +/** Add a failover nid location. + * Client obd types contact server obd types using this nid list. + */ int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg) { struct obd_import *imp; @@ -634,6 +790,8 @@ int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg) RETURN(rc); } +/** Remove a failover nid location. + */ int class_del_conn(struct obd_device *obd, struct lustre_cfg *lcfg) { struct obd_import *imp; @@ -671,14 +829,19 @@ struct lustre_profile *class_get_profile(const char * prof) struct lustre_profile *lprof; ENTRY; - list_for_each_entry(lprof, &lustre_profile_list, lp_list) { + cfs_list_for_each_entry(lprof, &lustre_profile_list, lp_list) { if (!strcmp(lprof->lp_profile, prof)) { RETURN(lprof); } } RETURN(NULL); } +EXPORT_SYMBOL(class_get_profile); +/** Create a named "profile". + * This defines the mdc and osc names to use for a client. + * This also is used to define the lov to be used by a mdt. + */ int class_add_profile(int proflen, char *prof, int osclen, char *osc, int mdclen, char *mdc) { @@ -713,7 +876,7 @@ int class_add_profile(int proflen, char *prof, int osclen, char *osc, memcpy(lprof->lp_md, mdc, mdclen); } - list_add(&lprof->lp_list, &lustre_profile_list); + cfs_list_add(&lprof->lp_list, &lustre_profile_list); RETURN(err); out: @@ -736,7 +899,7 @@ void class_del_profile(const char *prof) lprof = class_get_profile(prof); if (lprof) { - list_del(&lprof->lp_list); + cfs_list_del(&lprof->lp_list); OBD_FREE(lprof->lp_profile, strlen(lprof->lp_profile) + 1); OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1); if (lprof->lp_md) @@ -745,6 +908,7 @@ void class_del_profile(const char *prof) } EXIT; } +EXPORT_SYMBOL(class_del_profile); /* COMPAT_146 */ void class_del_profiles(void) @@ -752,8 +916,8 @@ void class_del_profiles(void) struct lustre_profile *lprof, *n; ENTRY; - list_for_each_entry_safe(lprof, n, &lustre_profile_list, lp_list) { - list_del(&lprof->lp_list); + cfs_list_for_each_entry_safe(lprof, n, &lustre_profile_list, lp_list) { + cfs_list_del(&lprof->lp_list); OBD_FREE(lprof->lp_profile, strlen(lprof->lp_profile) + 1); OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1); if (lprof->lp_md) @@ -762,32 +926,36 @@ void class_del_profiles(void) } EXIT; } +EXPORT_SYMBOL(class_del_profiles); -static int class_set_global(char *ptr, int val) { - ENTRY; - - if (class_match_param(ptr, PARAM_AT_MIN, NULL) == 0) - at_min = val; - else if (class_match_param(ptr, PARAM_AT_MAX, NULL) == 0) - at_max = val; - else if (class_match_param(ptr, PARAM_AT_EXTRA, NULL) == 0) - at_extra = val; - else if (class_match_param(ptr, PARAM_AT_EARLY_MARGIN, NULL) == 0) - at_early_margin = val; - else if (class_match_param(ptr, PARAM_AT_HISTORY, NULL) == 0) - at_history = val; - else - RETURN(-EINVAL); - - CDEBUG(D_IOCTL, "global %s = %d\n", ptr, val); - - RETURN(0); +static int class_set_global(char *ptr, int val, struct lustre_cfg *lcfg) +{ + ENTRY; + if (class_match_param(ptr, PARAM_AT_MIN, NULL) == 0) + at_min = val; + else if (class_match_param(ptr, PARAM_AT_MAX, NULL) == 0) + at_max = val; + else if (class_match_param(ptr, PARAM_AT_EXTRA, NULL) == 0) + at_extra = val; + else if (class_match_param(ptr, PARAM_AT_EARLY_MARGIN, NULL) == 0) + at_early_margin = val; + else if (class_match_param(ptr, PARAM_AT_HISTORY, NULL) == 0) + at_history = val; + else if (class_match_param(ptr, PARAM_JOBID_VAR, NULL) == 0) + strlcpy(obd_jobid_var, lustre_cfg_string(lcfg, 2), + JOBSTATS_JOBID_VAR_MAX_LEN + 1); + else + RETURN(-EINVAL); + + CDEBUG(D_IOCTL, "global %s = %d\n", ptr, val); + RETURN(0); } -/* We can't call ll_process_config directly because it lives in a module that - must be loaded after this one. */ +/* We can't call ll_process_config or lquota_process_config directly because + * it lives in a module that must be loaded after this one. */ static int (*client_process_config)(struct lustre_cfg *lcfg) = NULL; +static int (*quota_process_config)(struct lustre_cfg *lcfg) = NULL; void lustre_register_client_process_config(int (*cpc)(struct lustre_cfg *lcfg)) { @@ -795,6 +963,89 @@ void lustre_register_client_process_config(int (*cpc)(struct lustre_cfg *lcfg)) } EXPORT_SYMBOL(lustre_register_client_process_config); +/** + * Rename the proc parameter in \a cfg with a new name \a new_name. + * + * \param cfg config structure which contains the proc parameter + * \param new_name new name of the proc parameter + * + * \retval valid-pointer pointer to the newly-allocated config structure + * which contains the renamed proc parameter + * \retval ERR_PTR(-EINVAL) if \a cfg or \a new_name is NULL, or \a cfg does + * not contain a proc parameter + * \retval ERR_PTR(-ENOMEM) if memory allocation failure occurs + */ +struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg, + const char *new_name) +{ + struct lustre_cfg_bufs *bufs = NULL; + struct lustre_cfg *new_cfg = NULL; + char *param = NULL; + char *new_param = NULL; + char *value = NULL; + int name_len = 0; + int new_len = 0; + ENTRY; + + if (cfg == NULL || new_name == NULL) + RETURN(ERR_PTR(-EINVAL)); + + param = lustre_cfg_string(cfg, 1); + if (param == NULL) + RETURN(ERR_PTR(-EINVAL)); + + value = strchr(param, '='); + if (value == NULL) + name_len = strlen(param); + else + name_len = value - param; + + new_len = LUSTRE_CFG_BUFLEN(cfg, 1) + strlen(new_name) - name_len; + + OBD_ALLOC(new_param, new_len); + if (new_param == NULL) + RETURN(ERR_PTR(-ENOMEM)); + + strcpy(new_param, new_name); + if (value != NULL) + strcat(new_param, value); + + OBD_ALLOC_PTR(bufs); + if (bufs == NULL) { + OBD_FREE(new_param, new_len); + RETURN(ERR_PTR(-ENOMEM)); + } + + lustre_cfg_bufs_reset(bufs, NULL); + lustre_cfg_bufs_init(bufs, cfg); + lustre_cfg_bufs_set_string(bufs, 1, new_param); + + new_cfg = lustre_cfg_new(cfg->lcfg_command, bufs); + + OBD_FREE(new_param, new_len); + OBD_FREE_PTR(bufs); + if (new_cfg == NULL) + RETURN(ERR_PTR(-ENOMEM)); + + new_cfg->lcfg_num = cfg->lcfg_num; + new_cfg->lcfg_flags = cfg->lcfg_flags; + new_cfg->lcfg_nid = cfg->lcfg_nid; + new_cfg->lcfg_nal = cfg->lcfg_nal; + + RETURN(new_cfg); +} +EXPORT_SYMBOL(lustre_cfg_rename); + +void lustre_register_quota_process_config(int (*qpc)(struct lustre_cfg *lcfg)) +{ + quota_process_config = qpc; +} +EXPORT_SYMBOL(lustre_register_quota_process_config); + +/** Process configuration commands given in lustre_cfg form. + * These may come from direct calls (e.g. class_manual_cleanup) + * or processing the config llog, or ioctl from lctl. + */ int class_process_config(struct lustre_cfg *lcfg) { struct obd_device *obd; @@ -850,6 +1101,7 @@ int class_process_config(struct lustre_cfg *lcfg) CDEBUG(D_IOCTL, "changing lustre timeout from %d to %d\n", obd_timeout, lcfg->lcfg_num); obd_timeout = max(lcfg->lcfg_num, 1U); + obd_timeout_set = 1; GOTO(out, err = 0); } case LCFG_SET_LDLM_TIMEOUT: { @@ -858,7 +1110,7 @@ int class_process_config(struct lustre_cfg *lcfg) ldlm_timeout = max(lcfg->lcfg_num, 1U); if (ldlm_timeout >= obd_timeout) ldlm_timeout = max(obd_timeout / 3, 1U); - + ldlm_timeout_set = 1; GOTO(out, err = 0); } case LCFG_SET_UPCALL: { @@ -884,14 +1136,18 @@ int class_process_config(struct lustre_cfg *lcfg) } else if ((class_match_param(lustre_cfg_string(lcfg, 1), PARAM_SYS, &tmp) == 0)) { /* Global param settings */ - err = class_set_global(tmp, lcfg->lcfg_num); + err = class_set_global(tmp, lcfg->lcfg_num, lcfg); /* Note that since LCFG_PARAM is LCFG_REQUIRED, new unknown globals would cause config to fail */ if (err) CWARN("Ignoring unknown param %s\n", tmp); GOTO(out, 0); - } - + } else if ((class_match_param(lustre_cfg_string(lcfg, 1), + PARAM_QUOTA, &tmp) == 0) && + quota_process_config) { + err = (*quota_process_config)(lcfg); + GOTO(out, err); + } /* Fall through */ break; } @@ -966,6 +1222,7 @@ out: } return err; } +EXPORT_SYMBOL(class_process_config); int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars, struct lustre_cfg *lcfg, void *data) @@ -1035,7 +1292,7 @@ int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars, var->name, rc); rc = 0; } else { - LCONSOLE_INFO("%s.%.*s: set parameter %.*s=%s\n", + CDEBUG(D_CONFIG, "%s.%.*s: set parameter %.*s=%s\n", lustre_cfg_string(lcfg, 0), (int)strlen(prefix) - 1, prefix, (int)(sval - key - 1), key, sval); @@ -1053,9 +1310,7 @@ int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars, RETURN(0); #endif } - -int class_config_dump_handler(struct llog_handle * handle, - struct llog_rec_hdr *rec, void *data); +EXPORT_SYMBOL(class_process_proc_param); #ifdef __KERNEL__ extern int lustre_check_exclusion(struct super_block *sb, char *svname); @@ -1063,8 +1318,14 @@ extern int lustre_check_exclusion(struct super_block *sb, char *svname); #define lustre_check_exclusion(a,b) 0 #endif -static int class_config_llog_handler(struct llog_handle * handle, - struct llog_rec_hdr *rec, void *data) +/** Parse a configuration llog, doing various manipulations on them + * for various reasons, (modifications for compatibility, skip obsolete + * records, change uuids, etc), then class_process_config() resulting + * net records. + */ +static int class_config_llog_handler(const struct lu_env *env, + struct llog_handle *handle, + struct llog_rec_hdr *rec, void *data) { struct config_llog_instance *clli = data; int cfg_len = rec->lrh_len; @@ -1124,8 +1385,8 @@ static int class_config_llog_handler(struct llog_handle * handle, !(clli->cfg_flags & CFG_F_MARKER) && (lcfg->lcfg_command != LCFG_MARKER)) { CWARN("Config not inside markers, ignoring! " - "(inst: %s, uuid: %s, flags: %#x)\n", - clli->cfg_instance ? clli->cfg_instance : "", + "(inst: %p, uuid: %s, flags: %#x)\n", + clli->cfg_instance, clli->cfg_uuid.uuid, clli->cfg_flags); clli->cfg_flags |= CFG_F_SKIP; } @@ -1171,11 +1432,11 @@ static int class_config_llog_handler(struct llog_handle * handle, LUSTRE_CFG_BUFLEN(lcfg, 0) > 0){ inst = 1; inst_len = LUSTRE_CFG_BUFLEN(lcfg, 0) + - strlen(clli->cfg_instance) + 1; + sizeof(clli->cfg_instance) * 2 + 4; OBD_ALLOC(inst_name, inst_len); if (inst_name == NULL) GOTO(out, rc = -ENOMEM); - sprintf(inst_name, "%s-%s", + sprintf(inst_name, "%s-%p", lustre_cfg_string(lcfg, 0), clli->cfg_instance); lustre_cfg_bufs_set_string(&bufs, 0, inst_name); @@ -1185,7 +1446,7 @@ static int class_config_llog_handler(struct llog_handle * handle, /* we override the llog's uuid for clients, to insure they are unique */ - if (clli && clli->cfg_instance && + if (clli && clli->cfg_instance != NULL && lcfg->lcfg_command == LCFG_ATTACH) { lustre_cfg_bufs_set_string(&bufs, 2, clli->cfg_uuid.uuid); @@ -1244,7 +1505,7 @@ static int class_config_llog_handler(struct llog_handle * handle, out: if (rc) { CERROR("Err %d on cfg command:\n", rc); - class_config_dump_handler(handle, rec, data); + class_config_dump_handler(NULL, handle, rec, data); } RETURN(rc); } @@ -1258,11 +1519,11 @@ int class_config_parse_llog(struct llog_ctxt *ctxt, char *name, ENTRY; CDEBUG(D_INFO, "looking up llog %s\n", name); - rc = llog_create(ctxt, &llh, NULL, name); + rc = llog_create(NULL, ctxt, &llh, NULL, name); if (rc) RETURN(rc); - rc = llog_init_handle(llh, LLOG_F_IS_PLAIN, NULL); + rc = llog_init_handle(NULL, llh, LLOG_F_IS_PLAIN, NULL); if (rc) GOTO(parse_out, rc); @@ -1271,7 +1532,7 @@ int class_config_parse_llog(struct llog_ctxt *ctxt, char *name, cd.lpcd_first_idx = cfg->cfg_last_idx; cd.lpcd_last_idx = 0; - rc = llog_process(llh, class_config_llog_handler, cfg, &cd); + rc = llog_process(NULL, llh, class_config_llog_handler, cfg, &cd); CDEBUG(D_CONFIG, "Processed log %s gen %d-%d (rc=%d)\n", name, cd.lpcd_first_idx + 1, cd.lpcd_last_idx, rc); @@ -1280,15 +1541,17 @@ int class_config_parse_llog(struct llog_ctxt *ctxt, char *name, cfg->cfg_last_idx = cd.lpcd_last_idx; parse_out: - rc2 = llog_close(llh); + rc2 = llog_close(NULL, llh); if (rc == 0) rc = rc2; RETURN(rc); } +EXPORT_SYMBOL(class_config_parse_llog); -int class_config_dump_handler(struct llog_handle * handle, - struct llog_rec_hdr *rec, void *data) +int class_config_dump_handler(const struct lu_env *env, + struct llog_handle *handle, + struct llog_rec_hdr *rec, void *data) { int cfg_len = rec->lrh_len; char *cfg_buf = (char*) (rec + 1); @@ -1356,17 +1619,17 @@ int class_config_dump_llog(struct llog_ctxt *ctxt, char *name, LCONSOLE_INFO("Dumping config log %s\n", name); - rc = llog_create(ctxt, &llh, NULL, name); + rc = llog_create(NULL, ctxt, &llh, NULL, name); if (rc) RETURN(rc); - rc = llog_init_handle(llh, LLOG_F_IS_PLAIN, NULL); + rc = llog_init_handle(NULL, llh, LLOG_F_IS_PLAIN, NULL); if (rc) GOTO(parse_out, rc); - rc = llog_process(llh, class_config_dump_handler, cfg, NULL); + rc = llog_process(NULL, llh, class_config_dump_handler, cfg, NULL); parse_out: - rc2 = llog_close(llh); + rc2 = llog_close(NULL, llh); if (rc == 0) rc = rc2; @@ -1374,8 +1637,11 @@ parse_out: RETURN(rc); } +EXPORT_SYMBOL(class_config_dump_llog); -/* Cleanup and detach */ +/** Call class_cleanup and class_detach. + * "Manual" only in the sense that we're faking lcfg commands. + */ int class_manual_cleanup(struct obd_device *obd) { char flags[3] = ""; @@ -1418,26 +1684,27 @@ out: lustre_cfg_free(lcfg); RETURN(rc); } +EXPORT_SYMBOL(class_manual_cleanup); /* * uuid<->export lustre hash operations */ static unsigned -uuid_hash(lustre_hash_t *lh, void *key, unsigned mask) +uuid_hash(cfs_hash_t *hs, const void *key, unsigned mask) { - return lh_djb2_hash(((struct obd_uuid *)key)->uuid, - sizeof(((struct obd_uuid *)key)->uuid), mask); + return cfs_hash_djb2_hash(((struct obd_uuid *)key)->uuid, + sizeof(((struct obd_uuid *)key)->uuid), mask); } static void * -uuid_key(struct hlist_node *hnode) +uuid_key(cfs_hlist_node_t *hnode) { struct obd_export *exp; - exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash); + exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash); - RETURN(&exp->exp_client_uuid); + return &exp->exp_client_uuid; } /* @@ -1445,45 +1712,48 @@ uuid_key(struct hlist_node *hnode) * state with this function */ static int -uuid_compare(void *key, struct hlist_node *hnode) +uuid_keycmp(const void *key, cfs_hlist_node_t *hnode) { struct obd_export *exp; LASSERT(key); - exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash); + exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash); - RETURN(obd_uuid_equals((struct obd_uuid *)key,&exp->exp_client_uuid) && - !exp->exp_failed); + return obd_uuid_equals(key, &exp->exp_client_uuid) && + !exp->exp_failed; } static void * -uuid_export_get(struct hlist_node *hnode) +uuid_export_object(cfs_hlist_node_t *hnode) +{ + return cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash); +} + +static void +uuid_export_get(cfs_hash_t *hs, cfs_hlist_node_t *hnode) { struct obd_export *exp; - exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash); + exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash); class_export_get(exp); - - RETURN(exp); } -static void * -uuid_export_put(struct hlist_node *hnode) +static void +uuid_export_put_locked(cfs_hash_t *hs, cfs_hlist_node_t *hnode) { struct obd_export *exp; - exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash); + exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash); class_export_put(exp); - - RETURN(exp); } -static lustre_hash_ops_t uuid_hash_ops = { - .lh_hash = uuid_hash, - .lh_key = uuid_key, - .lh_compare = uuid_compare, - .lh_get = uuid_export_get, - .lh_put = uuid_export_put, +static cfs_hash_ops_t uuid_hash_ops = { + .hs_hash = uuid_hash, + .hs_key = uuid_key, + .hs_keycmp = uuid_keycmp, + .hs_object = uuid_export_object, + .hs_get = uuid_export_get, + .hs_put_locked = uuid_export_put_locked, }; @@ -1492,17 +1762,17 @@ static lustre_hash_ops_t uuid_hash_ops = { */ static unsigned -nid_hash(lustre_hash_t *lh, void *key, unsigned mask) +nid_hash(cfs_hash_t *hs, const void *key, unsigned mask) { - return lh_djb2_hash(key, sizeof(lnet_nid_t), mask); + return cfs_hash_djb2_hash(key, sizeof(lnet_nid_t), mask); } static void * -nid_key(struct hlist_node *hnode) +nid_key(cfs_hlist_node_t *hnode) { struct obd_export *exp; - exp = hlist_entry(hnode, struct obd_export, exp_nid_hash); + exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash); RETURN(&exp->exp_connection->c_peer.nid); } @@ -1512,45 +1782,48 @@ nid_key(struct hlist_node *hnode) * state with this function */ static int -nid_compare(void *key, struct hlist_node *hnode) +nid_kepcmp(const void *key, cfs_hlist_node_t *hnode) { struct obd_export *exp; LASSERT(key); - exp = hlist_entry(hnode, struct obd_export, exp_nid_hash); + exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash); RETURN(exp->exp_connection->c_peer.nid == *(lnet_nid_t *)key && !exp->exp_failed); } static void * -nid_export_get(struct hlist_node *hnode) +nid_export_object(cfs_hlist_node_t *hnode) +{ + return cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash); +} + +static void +nid_export_get(cfs_hash_t *hs, cfs_hlist_node_t *hnode) { struct obd_export *exp; - exp = hlist_entry(hnode, struct obd_export, exp_nid_hash); + exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash); class_export_get(exp); - - RETURN(exp); } -static void * -nid_export_put(struct hlist_node *hnode) +static void +nid_export_put_locked(cfs_hash_t *hs, cfs_hlist_node_t *hnode) { struct obd_export *exp; - exp = hlist_entry(hnode, struct obd_export, exp_nid_hash); + exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash); class_export_put(exp); - - RETURN(exp); } -static lustre_hash_ops_t nid_hash_ops = { - .lh_hash = nid_hash, - .lh_key = nid_key, - .lh_compare = nid_compare, - .lh_get = nid_export_get, - .lh_put = nid_export_put, +static cfs_hash_ops_t nid_hash_ops = { + .hs_hash = nid_hash, + .hs_key = nid_key, + .hs_keycmp = nid_kepcmp, + .hs_object = nid_export_object, + .hs_get = nid_export_get, + .hs_put_locked = nid_export_put_locked, }; @@ -1559,47 +1832,50 @@ static lustre_hash_ops_t nid_hash_ops = { */ static void * -nidstats_key(struct hlist_node *hnode) +nidstats_key(cfs_hlist_node_t *hnode) { struct nid_stat *ns; - ns = hlist_entry(hnode, struct nid_stat, nid_hash); + ns = cfs_hlist_entry(hnode, struct nid_stat, nid_hash); - RETURN(&ns->nid); + return &ns->nid; } static int -nidstats_compare(void *key, struct hlist_node *hnode) +nidstats_keycmp(const void *key, cfs_hlist_node_t *hnode) { - RETURN(*(lnet_nid_t *)nidstats_key(hnode) == *(lnet_nid_t *)key); + return *(lnet_nid_t *)nidstats_key(hnode) == *(lnet_nid_t *)key; } static void * -nidstats_get(struct hlist_node *hnode) +nidstats_object(cfs_hlist_node_t *hnode) +{ + return cfs_hlist_entry(hnode, struct nid_stat, nid_hash); +} + +static void +nidstats_get(cfs_hash_t *hs, cfs_hlist_node_t *hnode) { struct nid_stat *ns; - ns = hlist_entry(hnode, struct nid_stat, nid_hash); + ns = cfs_hlist_entry(hnode, struct nid_stat, nid_hash); nidstat_getref(ns); - - RETURN(ns); } -static void * -nidstats_put(struct hlist_node *hnode) +static void +nidstats_put_locked(cfs_hash_t *hs, cfs_hlist_node_t *hnode) { struct nid_stat *ns; - ns = hlist_entry(hnode, struct nid_stat, nid_hash); + ns = cfs_hlist_entry(hnode, struct nid_stat, nid_hash); nidstat_putref(ns); - - RETURN(ns); } -static lustre_hash_ops_t nid_stat_hash_ops = { - .lh_hash = nid_hash, - .lh_key = nidstats_key, - .lh_compare = nidstats_compare, - .lh_get = nidstats_get, - .lh_put = nidstats_put, +static cfs_hash_ops_t nid_stat_hash_ops = { + .hs_hash = nid_hash, + .hs_key = nidstats_key, + .hs_keycmp = nidstats_keycmp, + .hs_object = nidstats_object, + .hs_get = nidstats_get, + .hs_put_locked = nidstats_put_locked, };