Merge branches 'expcb.2026.07.24a', 'misc.2026.07.30a', 'rcu-tasks.2026.07.30a', 'srcu.2026.08.11a' and 'torture.2026.08.14a' into HEADgrafted

Changes:

Make expedited grace periods expedite normal RCU callbacks

Miscellaneous fixes:
 * Improve diagnostic output with character task states.
 * Mark accesses to inform KCSAN of concurrency design.
 * Move from kmalloc() to kmalloc_obj().
 * Documentation updates.
 * Improve handling of RCU deferred quiescent states.
 * Clean up unused function arguments and structure fields.
 * Reduce show_rcu_gp_kthreads() stack space.

Tasks RCU updates:
 * Clean up after SRCU re-implementation of Tasks Trace RCU.
 * Mark accesses to inform KCSAN of concurrency design.
 * Add ->lazy_timer status to diagnostic output.
 * Remove an unnecessary memory barrier.
 * Fix a data race, courtesy of KCSAN.
 * Documentation updates.
 * Convert cond_resched_tasks_rcu_qs() from macro to static inline
   function.

SRCU updates:
 * Add Rust helpers for SRCU.
 * Avoid losing queued work at cleanup_srcu_struct() time.

Torture-test updates:
 * Preparation work for immediate RCU priority deboosting.
 * Test RCU readers from real interrupt handlers (as opposed to softirq).
 * Simplify code through use of cpumask_next_wrap().
 * Improve diagnostic output with character task states.
 * Add rcutorture.nwriters parameter to allow lightweight stall testing,
   and rcutorture.stall_only to make doing so easier.
 * Test an RCU Tasks Trace grace period implying an RCU grace period.
 * Make RCU Tasks Trace torturing track reader batches.
 * Fix a data race, courtesy of KCSAN.
 * Plug a shuffle_tmp_mask memory leak on kthread spawn failure.

1 files changed, 49 insertions, 0 deletions

diff --git a/net/rxrpc/Makefile b/net/rxrpc/Makefile
new file mode 100644
index 000000000..f994f9f30
--- /dev/null
+++ b/net/rxrpc/Makefile
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for Linux kernel RxRPC
+#
+
+obj-$(CONFIG_AF_RXRPC) += rxrpc.o
+
+rxrpc-y := \
+	af_rxrpc.o \
+	call_accept.o \
+	call_event.o \
+	call_object.o \
+	call_state.o \
+	conn_client.o \
+	conn_event.o \
+	conn_object.o \
+	conn_service.o \
+	input.o \
+	input_rack.o \
+	insecure.o \
+	io_thread.o \
+	key.o \
+	local_event.o \
+	local_object.o \
+	misc.o \
+	net_ns.o \
+	oob.o \
+	output.o \
+	peer_event.o \
+	peer_object.o \
+	recvmsg.o \
+	rtt.o \
+	security.o \
+	sendmsg.o \
+	server_key.o \
+	skbuff.o \
+	txbuf.o \
+	utils.o
+
+rxrpc-$(CONFIG_PROC_FS) += proc.o
+rxrpc-$(CONFIG_RXKAD) += rxkad.o fcrypt.o
+rxrpc-$(CONFIG_SYSCTL) += sysctl.o
+rxrpc-$(CONFIG_RXGK) += \
+	rxgk.o \
+	rxgk_app.o \
+	rxgk_kdf.o
+
+obj-$(CONFIG_RXPERF) += rxperf.o
+obj-$(CONFIG_KUNIT) += tests/