*
* 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) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2013, Intel Corporation.
+ * Copyright (c) 2013, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*/
static int lovsub_device_init(const struct lu_env *env, struct lu_device *d,
- const char *name, struct lu_device *next)
+ const char *name, struct lu_device *next)
{
- struct lovsub_device *lsd = lu2lovsub_dev(d);
- struct lu_device_type *ldt;
- int rc;
-
- ENTRY;
- next->ld_site = d->ld_site;
- ldt = next->ld_type;
- LASSERT(ldt != NULL);
- rc = ldt->ldt_ops->ldto_device_init(env, next, ldt->ldt_name, NULL);
- if (rc) {
- next->ld_site = NULL;
- RETURN(rc);
- }
-
- lu_device_get(next);
- lu_ref_add(&next->ld_reference, "lu-stack", &lu_site_init);
- lsd->acid_next = lu2cl_dev(next);
- RETURN(rc);
+ struct lovsub_device *lsd = lu2lovsub_dev(d);
+ struct lu_device_type *ldt;
+ int rc;
+
+ ENTRY;
+ next->ld_site = d->ld_site;
+ ldt = next->ld_type;
+ LASSERT(ldt != NULL);
+ rc = ldt->ldt_ops->ldto_device_init(env, next, ldt->ldt_name, NULL);
+ if (rc) {
+ next->ld_site = NULL;
+ RETURN(rc);
+ }
+
+ lu_device_get(next);
+ lu_ref_add(&next->ld_reference, "lu-stack", &lu_site_init);
+ lsd->acid_next = lu2cl_dev(next);
+ RETURN(rc);
}
static struct lu_device *lovsub_device_fini(const struct lu_env *env,
- struct lu_device *d)
+ struct lu_device *d)
{
- struct lu_device *next;
- struct lovsub_device *lsd;
-
- ENTRY;
- lsd = lu2lovsub_dev(d);
- next = cl2lu_dev(lsd->acid_next);
- lsd->acid_super = NULL;
- lsd->acid_next = NULL;
- RETURN(next);
+ struct lu_device *next;
+ struct lovsub_device *lsd;
+
+ ENTRY;
+ lsd = lu2lovsub_dev(d);
+ next = cl2lu_dev(lsd->acid_next);
+ lsd->acid_next = NULL;
+ RETURN(next);
}
static struct lu_device *lovsub_device_free(const struct lu_env *env,
struct lu_device *d)
{
- struct lovsub_device *lsd = lu2lovsub_dev(d);
- struct lu_device *next = cl2lu_dev(lsd->acid_next);
+ struct lovsub_device *lsd = lu2lovsub_dev(d);
+ struct lu_device *next = cl2lu_dev(lsd->acid_next);
- if (atomic_read(&d->ld_ref) && d->ld_site) {
- LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
- lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
- }
+ lu_site_print(env, d->ld_site, &d->ld_ref, D_ERROR, lu_cdebug_printer);
cl_device_fini(lu2cl_dev(d));
OBD_FREE_PTR(lsd);
return next;
}
static const struct lu_device_operations lovsub_lu_ops = {
- .ldo_object_alloc = lovsub_object_alloc,
- .ldo_process_config = NULL,
- .ldo_recovery_complete = NULL
+ .ldo_object_alloc = lovsub_object_alloc,
+ .ldo_process_config = NULL,
+ .ldo_recovery_complete = NULL
};
static struct lu_device *lovsub_device_alloc(const struct lu_env *env,
- struct lu_device_type *t,
- struct lustre_cfg *cfg)
+ struct lu_device_type *t,
+ struct lustre_cfg *cfg)
{
- struct lu_device *d;
- struct lovsub_device *lsd;
-
- OBD_ALLOC_PTR(lsd);
- if (lsd != NULL) {
- int result;
-
- result = cl_device_init(&lsd->acid_cl, t);
- if (result == 0) {
- d = lovsub2lu_dev(lsd);
- d->ld_ops = &lovsub_lu_ops;
- } else
- d = ERR_PTR(result);
- } else
- d = ERR_PTR(-ENOMEM);
- return d;
+ struct lu_device *d;
+ struct lovsub_device *lsd;
+
+ OBD_ALLOC_PTR(lsd);
+ if (lsd) {
+ int result;
+
+ result = cl_device_init(&lsd->acid_cl, t);
+ if (result == 0) {
+ d = lovsub2lu_dev(lsd);
+ d->ld_ops = &lovsub_lu_ops;
+ } else
+ d = ERR_PTR(result);
+ } else
+ d = ERR_PTR(-ENOMEM);
+ return d;
}
static const struct lu_device_type_operations lovsub_device_type_ops = {
- .ldto_device_alloc = lovsub_device_alloc,
- .ldto_device_free = lovsub_device_free,
+ .ldto_device_alloc = lovsub_device_alloc,
+ .ldto_device_free = lovsub_device_free,
- .ldto_device_init = lovsub_device_init,
- .ldto_device_fini = lovsub_device_fini
+ .ldto_device_init = lovsub_device_init,
+ .ldto_device_fini = lovsub_device_fini
};
#define LUSTRE_LOVSUB_NAME "lovsub"
struct lu_device_type lovsub_device_type = {
- .ldt_tags = LU_DEVICE_CL,
- .ldt_name = LUSTRE_LOVSUB_NAME,
- .ldt_ops = &lovsub_device_type_ops,
- .ldt_ctx_tags = LCT_CL_THREAD
+ .ldt_tags = LU_DEVICE_CL,
+ .ldt_name = LUSTRE_LOVSUB_NAME,
+ .ldt_ops = &lovsub_device_type_ops,
+ .ldt_ctx_tags = LCT_CL_THREAD
};