The branch main has been updated by nc (ports committer):
URL:
https://cgit.FreeBSD.org/src/commit/?id=efe7f12cd37bf8f2538df387d565e7849112a598
commit efe7f12cd37bf8f2538df387d565e7849112a598
Author: Neel Chauhan <n...@freebsd.org>
AuthorDate: 2021-04-28 15:04:52 +0000
Commit: Neel Chauhan <n...@freebsd.org>
CommitDate: 2021-04-28 15:04:52 +0000
linuxkpi: Implement rcu_replace_pointer() macro
This is needed for the drm-kmod 5.5 update.
Reviewed by: hselasky (src)
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D30025
---
sys/compat/linuxkpi/common/include/linux/rcupdate.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/sys/compat/linuxkpi/common/include/linux/rcupdate.h
b/sys/compat/linuxkpi/common/include/linux/rcupdate.h
index a43736e0285f..ea97fecee53b 100644
--- a/sys/compat/linuxkpi/common/include/linux/rcupdate.h
+++ b/sys/compat/linuxkpi/common/include/linux/rcupdate.h
@@ -97,6 +97,13 @@
(uintptr_t)(v)); \
} while (0)
+#define rcu_replace_pointer(rcu, ptr, c) \
+({ \
+ typeof(ptr) __tmp = rcu_dereference_protected(rcu, c); \
+ rcu_assign_pointer(rcu, ptr); \
+ __tmp; \
+})
+
#define rcu_swap_protected(rcu, ptr, c) do { \
typeof(ptr) p = rcu_dereference_protected(rcu, c); \
rcu_assign_pointer(rcu, ptr); \
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