X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Ffid%2Ffid_store.c;h=e73e8498ece5935189714c7dfc52fde123129471;hb=5d8f6742e65d588d907b77ffc6fcdb2552d855b9;hp=97f486708d8506489883bfa64b3ba16599ea9ef5;hpb=e2af7fb3c91dfb13d34d8e1b2f2df8c09621f768;p=fs%2Flustre-release.git diff --git a/lustre/fid/fid_store.c b/lustre/fid/fid_store.c index 97f4867..e73e849 100644 --- a/lustre/fid/fid_store.c +++ b/lustre/fid/fid_store.c @@ -15,11 +15,7 @@ * * You should have received a copy of the GNU General Public License * version 2 along with this program; If not, see - * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf - * - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, - * CA 95054 USA or visit www.sun.com if you need additional information or - * have any questions. + * http://www.gnu.org/licenses/gpl-2.0.html * * GPL HEADER END */ @@ -27,11 +23,10 @@ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * - * Copyright (c) 2011, 2012, Whamcloud, Inc. + * Copyright (c) 2011, 2017, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. * * lustre/fid/fid_store.c * @@ -42,186 +37,131 @@ #define DEBUG_SUBSYSTEM S_FID -#ifdef __KERNEL__ -# include -# include -#else /* __KERNEL__ */ -# include -#endif - -#include -#include +#include #include -#include #include -#include #include +#include #include "fid_internal.h" -#ifdef __KERNEL__ - static struct lu_buf *seq_store_buf(struct seq_thread_info *info) { - struct lu_buf *buf; + struct lu_buf *buf; - buf = &info->sti_buf; - buf->lb_buf = &info->sti_space; - buf->lb_len = sizeof(info->sti_space); - return buf; + buf = &info->sti_buf; + buf->lb_buf = &info->sti_space; + buf->lb_len = sizeof(info->sti_space); + return buf; } struct seq_update_callback { - struct dt_txn_commit_cb suc_cb; - struct lu_server_seq *suc_seq; + struct dt_txn_commit_cb suc_cb; + struct lu_server_seq *suc_seq; }; void seq_update_cb(struct lu_env *env, struct thandle *th, - struct dt_txn_commit_cb *cb, int err) -{ - struct seq_update_callback *ccb; - ccb = container_of0(cb, struct seq_update_callback, suc_cb); - ccb->suc_seq->lss_need_sync = 0; - OBD_FREE_PTR(ccb); -} - -struct thandle *seq_store_trans_create(struct lu_server_seq *seq, - const struct lu_env *env) + struct dt_txn_commit_cb *cb, int err) { - struct dt_device *dt_dev; + struct seq_update_callback *ccb; - dt_dev = lu2dt_dev(seq->lss_obj->do_lu.lo_dev); - return dt_trans_create(env, dt_dev); -} + ccb = container_of(cb, struct seq_update_callback, suc_cb); -int seq_store_trans_start(struct lu_server_seq *seq, const struct lu_env *env, - struct thandle *th) -{ - struct dt_device *dt_dev; - ENTRY; + LASSERT(ccb->suc_seq != NULL); - dt_dev = lu2dt_dev(seq->lss_obj->do_lu.lo_dev); - - return dt_trans_start(env, dt_dev, th); + ccb->suc_seq->lss_need_sync = 0; + OBD_FREE_PTR(ccb); } int seq_update_cb_add(struct thandle *th, struct lu_server_seq *seq) { - struct seq_update_callback *ccb; - int rc; - OBD_ALLOC_PTR(ccb); - if (ccb == NULL) - return -ENOMEM; - - ccb->suc_cb.dcb_func = seq_update_cb; - CFS_INIT_LIST_HEAD(&ccb->suc_cb.dcb_linkage); - ccb->suc_seq = seq; - seq->lss_need_sync = 1; - rc = dt_trans_cb_add(th, &ccb->suc_cb); - if (rc) - OBD_FREE_PTR(ccb); - return rc; -} - -int seq_declare_store_write(struct lu_server_seq *seq, - const struct lu_env *env, - struct thandle *th) -{ - struct dt_object *dt_obj = seq->lss_obj; - int rc; - ENTRY; - - rc = dt_obj->do_body_ops->dbo_declare_write(env, dt_obj, - sizeof(struct lu_seq_range), - 0, th); - return rc; + struct seq_update_callback *ccb; + struct dt_txn_commit_cb *dcb; + int rc; + + OBD_ALLOC_PTR(ccb); + if (!ccb) + return -ENOMEM; + + ccb->suc_seq = seq; + seq->lss_need_sync = 1; + + dcb = &ccb->suc_cb; + dcb->dcb_func = seq_update_cb; + INIT_LIST_HEAD(&dcb->dcb_linkage); + strlcpy(dcb->dcb_name, "seq_update_cb", sizeof(dcb->dcb_name)); + + rc = dt_trans_cb_add(th, dcb); + if (rc) + OBD_FREE_PTR(ccb); + return rc; } /* This function implies that caller takes care about locking. */ -int seq_store_write(struct lu_server_seq *seq, - const struct lu_env *env, - struct thandle *th) -{ - struct dt_object *dt_obj = seq->lss_obj; - struct seq_thread_info *info; - loff_t pos = 0; - int rc; - ENTRY; - - info = lu_context_key_get(&env->le_ctx, &seq_thread_key); - LASSERT(info != NULL); - - /* Store ranges in le format. */ - range_cpu_to_le(&info->sti_space, &seq->lss_space); - - rc = dt_obj->do_body_ops->dbo_write(env, dt_obj, - seq_store_buf(info), - &pos, th, BYPASS_CAPA, 1); - if (rc == sizeof(info->sti_space)) { - CDEBUG(D_INFO, "%s: Space - "DRANGE"\n", - seq->lss_name, PRANGE(&seq->lss_space)); - rc = 0; - } else if (rc >= 0) { - rc = -EIO; - } - - - RETURN(rc); -} - int seq_store_update(const struct lu_env *env, struct lu_server_seq *seq, - struct lu_seq_range *out, int sync) + struct lu_seq_range *out, int sync) { - struct dt_device *dt_dev; - struct thandle *th; - int rc; - ENTRY; - - dt_dev = lu2dt_dev(seq->lss_obj->do_lu.lo_dev); - - th = seq_store_trans_create(seq, env); - if (IS_ERR(th)) - RETURN(PTR_ERR(th)); - - rc = seq_declare_store_write(seq, env, th); - if (rc) - GOTO(exit, rc); - - if (out != NULL) { - rc = fld_declare_server_create(seq->lss_site->ms_server_fld, - env, th); - if (rc) - GOTO(exit, rc); - } - - rc = seq_store_trans_start(seq, env, th); - if (rc) - GOTO(exit, rc); - - rc = seq_store_write(seq, env, th); - if (rc) { - CERROR("%s: Can't write space data, rc %d\n", - seq->lss_name, rc); - GOTO(exit,rc); - } else if (out != NULL) { - rc = fld_server_create(seq->lss_site->ms_server_fld, - env, out, th); - if (rc) { - CERROR("%s: Can't Update fld database, rc %d\n", - seq->lss_name, rc); - GOTO(exit,rc); - } - } - - /* next sequence update will need sync until this update is committed - * in case of sync operation this is not needed obviously */ - if (!sync) - /* if callback can't be added then sync always */ - sync = !!seq_update_cb_add(th, seq); - - th->th_sync |= sync; + struct dt_device *dt_dev = lu2dt_dev(seq->lss_obj->do_lu.lo_dev); + struct seq_thread_info *info; + struct thandle *th; + loff_t pos = 0; + int rc; + + if (dt_dev->dd_rdonly) + RETURN(0); + + info = lu_context_key_get(&env->le_ctx, &seq_thread_key); + LASSERT(info != NULL); + + th = dt_trans_create(env, dt_dev); + if (IS_ERR(th)) + RETURN(PTR_ERR(th)); + + /* Store ranges in le format. */ + range_cpu_to_le(&info->sti_space, &seq->lss_space); + + rc = dt_declare_record_write(env, seq->lss_obj, + seq_store_buf(info), 0, th); + if (rc) + GOTO(exit, rc); + + if (out) { + rc = fld_declare_server_create(env, + seq->lss_site->ss_server_fld, + out, th); + if (rc) + GOTO(exit, rc); + } + + rc = dt_trans_start_local(env, dt_dev, th); + if (rc) + GOTO(exit, rc); + + rc = dt_record_write(env, seq->lss_obj, seq_store_buf(info), &pos, th); + if (rc) { + CERROR("%s: Can't write space data, rc %d\n", + seq->lss_name, rc); + GOTO(exit, rc); + } else if (out) { + rc = fld_server_create(env, seq->lss_site->ss_server_fld, out, + th); + if (rc) { + CERROR("%s: Can't Update fld database, rc %d\n", + seq->lss_name, rc); + GOTO(exit, rc); + } + } + /* + * next sequence update will need sync until this update is committed + * in case of sync operation this is not needed obviously + */ + if (!sync) + /* if callback can't be added then sync always */ + sync = !!seq_update_cb_add(th, seq); + + th->th_sync |= sync; exit: - dt_trans_stop(env, dt_dev, th); - return rc; + dt_trans_stop(env, dt_dev, th); + return rc; } /* @@ -229,73 +169,81 @@ exit: * needed (init time). */ int seq_store_read(struct lu_server_seq *seq, - const struct lu_env *env) + const struct lu_env *env) { - struct dt_object *dt_obj = seq->lss_obj; - struct seq_thread_info *info; - loff_t pos = 0; - int rc; - ENTRY; - - info = lu_context_key_get(&env->le_ctx, &seq_thread_key); - LASSERT(info != NULL); - - rc = dt_obj->do_body_ops->dbo_read(env, dt_obj, seq_store_buf(info), - &pos, BYPASS_CAPA); - - if (rc == sizeof(info->sti_space)) { - range_le_to_cpu(&seq->lss_space, &info->sti_space); - CDEBUG(D_INFO, "%s: Space - "DRANGE"\n", - seq->lss_name, PRANGE(&seq->lss_space)); - rc = 0; - } else if (rc == 0) { - rc = -ENODATA; - } else if (rc >= 0) { - CERROR("%s: Read only %d bytes of %d\n", seq->lss_name, - rc, (int)sizeof(info->sti_space)); - rc = -EIO; - } - - RETURN(rc); + struct seq_thread_info *info; + loff_t pos = 0; + int rc; + ENTRY; + + info = lu_context_key_get(&env->le_ctx, &seq_thread_key); + LASSERT(info != NULL); + + rc = dt_read(env, seq->lss_obj, seq_store_buf(info), &pos); + + if (rc == sizeof(info->sti_space)) { + range_le_to_cpu(&seq->lss_space, &info->sti_space); + CDEBUG(D_INFO, "%s: Space - "DRANGE"\n", + seq->lss_name, PRANGE(&seq->lss_space)); + rc = 0; + } else if (rc == 0) { + rc = -ENODATA; + } else if (rc > 0) { + CERROR("%s: Read only %d bytes of %d\n", seq->lss_name, + rc, (int)sizeof(info->sti_space)); + rc = -EIO; + } + + RETURN(rc); } int seq_store_init(struct lu_server_seq *seq, - const struct lu_env *env, - struct dt_device *dt) + const struct lu_env *env, + struct dt_device *dt) { - struct dt_object *dt_obj; - struct lu_fid fid; - const char *name; - int rc; - ENTRY; - - name = seq->lss_type == LUSTRE_SEQ_SERVER ? - LUSTRE_SEQ_SRV_NAME : LUSTRE_SEQ_CTL_NAME; - - dt_obj = dt_store_open(env, dt, "", name, &fid); - if (!IS_ERR(dt_obj)) { - seq->lss_obj = dt_obj; - rc = 0; - } else { - CERROR("%s: Can't find \"%s\" obj %d\n", - seq->lss_name, name, (int)PTR_ERR(dt_obj)); - rc = PTR_ERR(dt_obj); - } - - RETURN(rc); + struct dt_object *dt_obj; + struct lu_fid fid; + struct lu_attr attr; + struct dt_object_format dof; + const char *name; + int rc; + ENTRY; + + name = seq->lss_type == LUSTRE_SEQ_SERVER ? + LUSTRE_SEQ_SRV_NAME : LUSTRE_SEQ_CTL_NAME; + + if (seq->lss_type == LUSTRE_SEQ_SERVER) + lu_local_obj_fid(&fid, FID_SEQ_SRV_OID); + else + lu_local_obj_fid(&fid, FID_SEQ_CTL_OID); + + memset(&attr, 0, sizeof(attr)); + attr.la_valid = LA_MODE; + attr.la_mode = S_IFREG | 0666; + dof.dof_type = DFT_REGULAR; + + dt_obj = dt_find_or_create(env, dt, &fid, &dof, &attr); + if (!IS_ERR(dt_obj)) { + seq->lss_obj = dt_obj; + rc = 0; + } else { + CERROR("%s: Can't find \"%s\" obj %d\n", + seq->lss_name, name, (int)PTR_ERR(dt_obj)); + rc = PTR_ERR(dt_obj); + } + + RETURN(rc); } -void seq_store_fini(struct lu_server_seq *seq, - const struct lu_env *env) +void seq_store_fini(struct lu_server_seq *seq, const struct lu_env *env) { - ENTRY; + ENTRY; - if (seq->lss_obj != NULL) { - if (!IS_ERR(seq->lss_obj)) - lu_object_put(env, &seq->lss_obj->do_lu); - seq->lss_obj = NULL; - } + if (seq->lss_obj) { + if (!IS_ERR(seq->lss_obj)) + dt_object_put(env, seq->lss_obj); + seq->lss_obj = NULL; + } - EXIT; + EXIT; } -#endif