Module Name: src
Committed By: riastradh
Date: Sat Apr 9 23:43:55 UTC 2022
Modified Files:
src/sys/external/bsd/drm2/include/linux: llist.h
Log Message:
linux/llist: Use membar_release and membar_datadep_consumer.
No need for membar_acquire here! Loads are all data-dependent.
To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/sys/external/bsd/drm2/include/linux/llist.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/external/bsd/drm2/include/linux/llist.h
diff -u src/sys/external/bsd/drm2/include/linux/llist.h:1.6 src/sys/external/bsd/drm2/include/linux/llist.h:1.7
--- src/sys/external/bsd/drm2/include/linux/llist.h:1.6 Sun Dec 19 11:52:08 2021
+++ src/sys/external/bsd/drm2/include/linux/llist.h Sat Apr 9 23:43:55 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: llist.h,v 1.6 2021/12/19 11:52:08 riastradh Exp $ */
+/* $NetBSD: llist.h,v 1.7 2022/04/09 23:43:55 riastradh Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -70,7 +70,7 @@ llist_add(struct llist_node *node, struc
do {
first = head->first;
node->next = first;
- membar_exit();
+ membar_release();
} while (atomic_cas_ptr(&head->first, first, node) != first);
return first == NULL;
@@ -96,7 +96,7 @@ llist_del_all(struct llist_head *head)
struct llist_node *first;
first = atomic_swap_ptr(&head->first, NULL);
- membar_enter();
+ membar_datadep_consumer();
return first;
}
