The branch main has been updated by dumbbell:
URL:
https://cgit.FreeBSD.org/src/commit/?id=09ba3ece18177c6ed96f8be75c6d648e9d20acdf
commit 09ba3ece18177c6ed96f8be75c6d648e9d20acdf
Author: Jean-Sébastien Pédron <dumbb...@freebsd.org>
AuthorDate: 2025-02-22 18:25:51 +0000
Commit: Jean-Sébastien Pédron <dumbb...@freebsd.org>
CommitDate: 2025-03-20 19:43:44 +0000
linuxkpi: Add `list_for_each_rcu()`
This is a variant of `list_for_each()` where the next item in the list
is read using `rcu_dereference()`.
This is used by the i915 DRM driver starting with Linux 6.8.
Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D49375
---
sys/compat/linuxkpi/common/include/linux/list.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/sys/compat/linuxkpi/common/include/linux/list.h
b/sys/compat/linuxkpi/common/include/linux/list.h
index eecb517d780e..a6c74a324dac 100644
--- a/sys/compat/linuxkpi/common/include/linux/list.h
+++ b/sys/compat/linuxkpi/common/include/linux/list.h
@@ -234,6 +234,11 @@ list_del_init(struct list_head *entry)
for (; &p->field != (h); \
p = list_prev_entry(p, field))
+#define list_for_each_rcu(p, head)
\
+ for (p = rcu_dereference((head)->next); \
+ p != (head); \
+ p = rcu_dereference((p)->next))
+
static inline void
list_add(struct list_head *new, struct list_head *head)
{
