*
* 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
*/
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2013, Intel Corporation.
+ * 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
*
#include <libcfs/libcfs.h>
#include <dt_object.h>
#include <obd_support.h>
-#include <lustre_capa.h>
#include <lustre_fid.h>
#include <lustre_fld.h>
#include "fid_internal.h"
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 seq_update_callback *ccb;
- ccb = container_of0(cb, struct seq_update_callback, suc_cb);
+ ccb = container_of(cb, struct seq_update_callback, suc_cb);
LASSERT(ccb->suc_seq != NULL);
int seq_update_cb_add(struct thandle *th, struct lu_server_seq *seq)
{
struct seq_update_callback *ccb;
- struct dt_txn_commit_cb *dcb;
- int rc;
+ struct dt_txn_commit_cb *dcb;
+ int rc;
OBD_ALLOC_PTR(ccb);
- if (ccb == NULL)
+ if (!ccb)
return -ENOMEM;
- ccb->suc_seq = seq;
+ ccb->suc_seq = seq;
seq->lss_need_sync = 1;
- dcb = &ccb->suc_cb;
+ 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));
/* This function implies that caller takes care about locking. */
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 = lu2dt_dev(seq->lss_obj->do_lu.lo_dev);
struct seq_thread_info *info;
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);
if (rc)
GOTO(exit, rc);
- if (out != NULL) {
+ if (out) {
rc = fld_declare_server_create(env,
seq->lss_site->ss_server_fld,
out, th);
CERROR("%s: Can't write space data, rc %d\n",
seq->lss_name, rc);
GOTO(exit, rc);
- } else if (out != NULL) {
+ } else if (out) {
rc = fld_server_create(env, seq->lss_site->ss_server_fld, out,
th);
if (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 */
+ /*
+ * 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);
* needed (init time).
*/
int seq_store_read(struct lu_server_seq *seq,
- const struct lu_env *env)
+ const struct lu_env *env)
{
- 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 = seq->lss_obj->do_body_ops->dbo_read(env, seq->lss_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;
+ 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;
- }
+ CERROR("%s: Read only %d bytes of %d\n", seq->lss_name,
+ rc, (int)sizeof(info->sti_space));
+ rc = -EIO;
+ }
- RETURN(rc);
+ 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 dt_object *dt_obj;
struct lu_fid fid;
struct lu_attr attr;
struct dt_object_format dof;
- const char *name;
- int rc;
- ENTRY;
+ const char *name;
+ int rc;
+ ENTRY;
name = seq->lss_type == LUSTRE_SEQ_SERVER ?
LUSTRE_SEQ_SRV_NAME : LUSTRE_SEQ_CTL_NAME;
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);
+ 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;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff