* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see [sun.com URL with a
- * copy of GPLv2].
+ * 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
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <dt_object.h>
#include <md_object.h>
#include <lustre_mdc.h>
+#include <lustre_fid.h>
#include <lustre_fld.h>
#include "fld_internal.h"
const char fld_index_name[] = "fld";
-static const struct dt_index_features fld_index_features = {
+static const struct lu_seq_range IGIF_FLD_RANGE = {
+ .lsr_start = 1,
+ .lsr_end = FID_SEQ_IDIF,
+ .lsr_index = 0,
+ .lsr_flags = LU_SEQ_RANGE_MDT
+};
+
+const struct dt_index_features fld_index_features = {
.dif_flags = DT_IND_UPDATE,
.dif_keysize_min = sizeof(seqno_t),
.dif_keysize_max = sizeof(seqno_t),
- .dif_recsize_min = sizeof(mdsno_t),
- .dif_recsize_max = sizeof(mdsno_t)
-};
-
-/*
- * number of blocks to reserve for particular operations. Should be function of
- * ... something. Stub for now.
- */
-enum {
- FLD_TXN_INDEX_INSERT_CREDITS = 20,
- FLD_TXN_INDEX_DELETE_CREDITS = 20,
+ .dif_recsize_min = sizeof(struct lu_seq_range),
+ .dif_recsize_max = sizeof(struct lu_seq_range),
+ .dif_ptrsize = 4
};
extern struct lu_context_key fld_thread_key;
}
static struct dt_rec *fld_rec(const struct lu_env *env,
- const mdsno_t mds)
+ const struct lu_seq_range *range)
{
struct fld_thread_info *info;
+ struct lu_seq_range *rec;
ENTRY;
info = lu_context_key_get(&env->le_ctx, &fld_thread_key);
LASSERT(info != NULL);
+ rec = &info->fti_rec;
+
+ range_cpu_to_be(rec, range);
+ RETURN((void *)rec);
+}
+
+struct thandle *fld_trans_create(struct lu_server_fld *fld,
+ const struct lu_env *env)
+{
+ struct dt_device *dt_dev;
+
+ dt_dev = lu2dt_dev(fld->lsf_obj->do_lu.lo_dev);
+
+ return dt_dev->dd_ops->dt_trans_create(env, dt_dev);
+}
+
+int fld_trans_start(struct lu_server_fld *fld,
+ const struct lu_env *env, struct thandle *th)
+{
+ struct dt_device *dt_dev;
+
+ dt_dev = lu2dt_dev(fld->lsf_obj->do_lu.lo_dev);
- info->fti_rec = cpu_to_be64(mds);
- RETURN((void *)&info->fti_rec);
+ return dt_dev->dd_ops->dt_trans_start(env, dt_dev, th);
}
+void fld_trans_stop(struct lu_server_fld *fld,
+ const struct lu_env *env, struct thandle* th)
+{
+ struct dt_device *dt_dev;
+
+ dt_dev = lu2dt_dev(fld->lsf_obj->do_lu.lo_dev);
+ dt_dev->dd_ops->dt_trans_stop(env, th);
+}
+
+int fld_declare_index_create(struct lu_server_fld *fld,
+ const struct lu_env *env,
+ const struct lu_seq_range *range,
+ struct thandle *th)
+{
+ struct dt_object *dt_obj = fld->lsf_obj;
+ seqno_t start;
+ int rc;
+
+ ENTRY;
+
+ start = range->lsr_start;
+ LASSERT(range_is_sane(range));
+
+ rc = dt_obj->do_index_ops->dio_declare_insert(env, dt_obj,
+ fld_rec(env, range),
+ fld_key(env, start), th);
+ RETURN(rc);
+}
+
+/**
+ * insert range in fld store.
+ *
+ * \param range range to be inserted
+ * \param th transaction for this operation as it could compound
+ * transaction.
+ *
+ * \retval 0 success
+ * \retval -ve error
+ */
+
int fld_index_create(struct lu_server_fld *fld,
const struct lu_env *env,
- seqno_t seq, mdsno_t mds)
+ const struct lu_seq_range *range,
+ struct thandle *th)
{
struct dt_object *dt_obj = fld->lsf_obj;
- struct dt_device *dt_dev;
- struct txn_param txn;
- struct thandle *th;
+ seqno_t start;
int rc;
+
ENTRY;
- dt_dev = lu2dt_dev(fld->lsf_obj->do_lu.lo_dev);
+ start = range->lsr_start;
+ LASSERT(range_is_sane(range));
- /* stub here, will fix it later */
- txn_param_init(&txn, FLD_TXN_INDEX_INSERT_CREDITS);
-
- th = dt_dev->dd_ops->dt_trans_start(env, dt_dev, &txn);
- if (!IS_ERR(th)) {
- rc = dt_obj->do_index_ops->dio_insert(env, dt_obj,
- fld_rec(env, mds),
- fld_key(env, seq),
- th, BYPASS_CAPA);
- dt_dev->dd_ops->dt_trans_stop(env, th);
- } else
- rc = PTR_ERR(th);
+ rc = dt_obj->do_index_ops->dio_insert(env, dt_obj,
+ fld_rec(env, range),
+ fld_key(env, start),
+ th, BYPASS_CAPA, 1);
+
+ CDEBUG(D_INFO, "%s: insert given range : "DRANGE" rc = %d\n",
+ fld->lsf_name, PRANGE(range), rc);
RETURN(rc);
}
+/**
+ * delete range in fld store.
+ *
+ * \param range range to be deleted
+ * \param th transaction
+ *
+ * \retval 0 success
+ * \retval -ve error
+ */
+
int fld_index_delete(struct lu_server_fld *fld,
const struct lu_env *env,
- seqno_t seq)
+ struct lu_seq_range *range,
+ struct thandle *th)
{
struct dt_object *dt_obj = fld->lsf_obj;
- struct dt_device *dt_dev;
- struct txn_param txn;
- struct thandle *th;
+ seqno_t seq = range->lsr_start;
int rc;
+
ENTRY;
- dt_dev = lu2dt_dev(fld->lsf_obj->do_lu.lo_dev);
- txn_param_init(&txn, FLD_TXN_INDEX_DELETE_CREDITS);
- th = dt_dev->dd_ops->dt_trans_start(env, dt_dev, &txn);
- if (!IS_ERR(th)) {
- rc = dt_obj->do_index_ops->dio_delete(env, dt_obj,
- fld_key(env, seq), th,
- BYPASS_CAPA);
- dt_dev->dd_ops->dt_trans_stop(env, th);
- } else
- rc = PTR_ERR(th);
+ rc = dt_obj->do_index_ops->dio_delete(env, dt_obj, fld_key(env, seq),
+ th, BYPASS_CAPA);
+
+ CDEBUG(D_INFO, "%s: delete given range : "DRANGE" rc = %d\n",
+ fld->lsf_name, PRANGE(range), rc);
+
RETURN(rc);
}
+/**
+ * lookup range for a seq passed. note here we only care about the start/end,
+ * caller should handle the attached location data (flags, index).
+ *
+ * \param seq seq for lookup.
+ * \param range result of lookup.
+ *
+ * \retval 0 found, \a range is the matched range;
+ * \retval -ENOENT not found, \a range is the left-side range;
+ * \retval -ve other error;
+ */
+
int fld_index_lookup(struct lu_server_fld *fld,
const struct lu_env *env,
- seqno_t seq, mdsno_t *mds)
+ seqno_t seq,
+ struct lu_seq_range *range)
{
- struct dt_object *dt_obj = fld->lsf_obj;
- struct dt_rec *rec = fld_rec(env, 0);
+ struct dt_object *dt_obj = fld->lsf_obj;
+ struct lu_seq_range *fld_rec;
+ struct dt_key *key = fld_key(env, seq);
+ struct fld_thread_info *info;
+ int rc;
+
+ ENTRY;
+
+ info = lu_context_key_get(&env->le_ctx, &fld_thread_key);
+ fld_rec = &info->fti_rec;
+
+ rc = dt_obj->do_index_ops->dio_lookup(env, dt_obj,
+ (struct dt_rec*) fld_rec,
+ key, BYPASS_CAPA);
+
+ if (rc >= 0) {
+ range_be_to_cpu(fld_rec, fld_rec);
+ *range = *fld_rec;
+ if (range_within(range, seq))
+ rc = 0;
+ else
+ rc = -ENOENT;
+ }
+
+ CDEBUG(D_INFO, "%s: lookup seq = "LPX64" range : "DRANGE" rc = %d\n",
+ fld->lsf_name, seq, PRANGE(range), rc);
+
+ RETURN(rc);
+}
+
+static int fld_insert_igif_fld(struct lu_server_fld *fld,
+ const struct lu_env *env)
+{
+ struct thandle *th;
int rc;
ENTRY;
- rc = dt_obj->do_index_ops->dio_lookup(env, dt_obj, rec,
- fld_key(env, seq), BYPASS_CAPA);
- if (rc == 0)
- *mds = be64_to_cpu(*(__u64 *)rec);
+ /* FLD_TXN_INDEX_INSERT_CREDITS */
+ th = fld_trans_create(fld, env);
+ if (IS_ERR(th))
+ RETURN(PTR_ERR(th));
+ rc = fld_declare_index_create(fld, env, &IGIF_FLD_RANGE, th);
+ if (rc) {
+ fld_trans_stop(fld, env, th);
+ RETURN(rc);
+ }
+ rc = fld_trans_start(fld, env, th);
+ if (rc) {
+ fld_trans_stop(fld, env, th);
+ RETURN(rc);
+ }
+
+ rc = fld_index_create(fld, env, &IGIF_FLD_RANGE, th);
+ fld_trans_stop(fld, env, th);
+ if (rc == -EEXIST)
+ rc = 0;
RETURN(rc);
}
int rc;
ENTRY;
- dt_obj = dt_store_open(env, dt, fld_index_name, &fid);
+ dt_obj = dt_store_open(env, dt, "", fld_index_name, &fid);
if (!IS_ERR(dt_obj)) {
fld->lsf_obj = dt_obj;
rc = dt_obj->do_ops->do_index_try(env, dt_obj,
&fld_index_features);
- if (rc == 0)
+ if (rc == 0) {
LASSERT(dt_obj->do_index_ops != NULL);
- else
+ rc = fld_insert_igif_fld(fld, env);
+
+ if (rc != 0) {
+ CERROR("insert igif in fld! = %d\n", rc);
+ lu_object_put(env, &dt_obj->do_lu);
+ fld->lsf_obj = NULL;
+ }
+ } else
CERROR("%s: File \"%s\" is not an index!\n",
fld->lsf_name, fld_index_name);
+
+
} else {
CERROR("%s: Can't find \"%s\" obj %d\n",
fld->lsf_name, fld_index_name, (int)PTR_ERR(dt_obj));
git://git.whamcloud.com / fs / lustre-release.git / blobdiff