[PATCH bpf-next 1/2] srcu: Add lock guard for srcu_fast_updown flavor
From: Puranjay Mohan <puranjay@kernel.org>
Date: 2026-07-06 17:28:07
Also in:
bpf, linux-perf-users, lkml, rcu
Subsystem:
sleepable read-copy update (srcu), the rest · Maintainers:
Lai Jiangshan, "Paul E. McKenney", Josh Triplett, Linus Torvalds
Add a guard(srcu_fast_updown) definition for scoped SRCU-fast-updown read-side critical sections, following the existing pattern of guard(srcu) and guard(srcu_fast). Signed-off-by: Puranjay Mohan <puranjay@kernel.org> --- include/linux/srcu.h | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/include/linux/srcu.h b/include/linux/srcu.h
index a54ce9e808b92..72c86d3b23f2e 100644
--- a/include/linux/srcu.h
+++ b/include/linux/srcu.h@@ -638,4 +638,11 @@ DEFINE_LOCK_GUARD_1(srcu_fast_notrace, struct srcu_struct, DECLARE_LOCK_GUARD_1_ATTRS(srcu_fast_notrace, __acquires_shared(_T), __releases_shared(*(struct srcu_struct **)_T)) #define class_srcu_fast_notrace_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(srcu_fast_notrace, _T) +DEFINE_LOCK_GUARD_1(srcu_fast_updown, struct srcu_struct, + _T->scp = srcu_read_lock_fast_updown(_T->lock), + srcu_read_unlock_fast_updown(_T->lock, _T->scp), + struct srcu_ctr __percpu *scp) +DECLARE_LOCK_GUARD_1_ATTRS(srcu_fast_updown, __acquires_shared(_T), __releases_shared(*(struct srcu_struct **)_T)) +#define class_srcu_fast_updown_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(srcu_fast_updown, _T) + #endif
--
2.53.0-Meta