*
* 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) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2016, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
* Protected by lu_ref_refs_guard.
*/
-static struct list_head lu_ref_refs;
-static spinlock_t lu_ref_refs_guard;
+static LIST_HEAD(lu_ref_refs);
+static DEFINE_SPINLOCK(lu_ref_refs_guard);
static struct lu_ref lu_ref_marker = {
.lf_guard = __SPIN_LOCK_UNLOCKED(lu_ref_marker.lf_guard),
.lf_list = LIST_HEAD_INIT(lu_ref_marker.lf_list),
CERROR(" link: %s %p\n", link->ll_scope, link->ll_source);
}
}
-EXPORT_SYMBOL(lu_ref_print);
static int lu_ref_is_marker(const struct lu_ref *ref)
{
}
spin_unlock(&lu_ref_refs_guard);
}
-EXPORT_SYMBOL(lu_ref_print_all);
void lu_ref_init_loc(struct lu_ref *ref, const char *func, const int line)
{
void lu_ref_fini(struct lu_ref *ref)
{
+ spin_lock(&ref->lf_guard);
REFASSERT(ref, list_empty(&ref->lf_list));
REFASSERT(ref, ref->lf_refs == 0);
+ spin_unlock(&ref->lf_guard);
spin_lock(&lu_ref_refs_guard);
list_del_init(&ref->lf_linkage);
spin_unlock(&lu_ref_refs_guard);
void lu_ref_add(struct lu_ref *ref, const char *scope, const void *source)
{
might_sleep();
- lu_ref_add_context(ref, GFP_IOFS, scope, source);
+ lu_ref_add_context(ref, GFP_NOFS, scope, source);
}
EXPORT_SYMBOL(lu_ref_add);
const char *scope,
const void *source0, const void *source1)
{
- REFASSERT(ref, link != NULL && !IS_ERR(link));
-
spin_lock(&ref->lf_guard);
+ REFASSERT(ref, link != NULL && !IS_ERR(link));
REFASSERT(ref, link->ll_ref == ref);
REFASSERT(ref, lu_ref_link_eq(link, scope, source0));
link->ll_source = source1;
void lu_ref_del_at(struct lu_ref *ref, struct lu_ref_link *link,
const char *scope, const void *source)
{
- REFASSERT(ref, link != NULL && !IS_ERR(link));
spin_lock(&ref->lf_guard);
+ REFASSERT(ref, link != NULL && !IS_ERR(link));
REFASSERT(ref, link->ll_ref == ref);
REFASSERT(ref, lu_ref_link_eq(link, scope, source));
list_del(&link->ll_linkage);
}
EXPORT_SYMBOL(lu_ref_del_at);
-#ifdef LPROCFS
+#ifdef CONFIG_PROC_FS
static void *lu_ref_seq_start(struct seq_file *seq, loff_t *pos)
{
.release = lu_ref_seq_release
};
-#endif /* LPROCFS */
+#endif /* CONFIG_PROC_FS */
int lu_ref_global_init(void)
{
CDEBUG(D_CONSOLE,
"lu_ref tracking is enabled. Performance isn't.\n");
- INIT_LIST_HEAD(&lu_ref_refs);
- spin_lock_init(&lu_ref_refs_guard);
result = lu_kmem_init(lu_ref_caches);
-#ifdef LPROCFS
+#ifdef CONFIG_PROC_FS
if (result == 0) {
result = lprocfs_seq_create(proc_lustre_root, "lu_refs",
0444, &lu_ref_dump_fops, NULL);
if (result)
lu_kmem_fini(lu_ref_caches);
}
-#endif /* LPROCFS */
+#endif /* CONFIG_PROC_FS */
return result;
}
void lu_ref_global_fini(void)
{
-#ifdef LPROCFS
+#ifdef CONFIG_PROC_FS
lprocfs_remove_proc_entry("lu_refs", proc_lustre_root);
-#endif /* LPROCFS */
+#endif /* CONFIG_PROC_FS */
lu_kmem_fini(lu_ref_caches);
}