Merge tag 'next.2025.05.17a' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux

Pull RCU updates from Joel Fernandes:
 - Removed swake_up_one_online() workaround
 - Reverted an incorrect rcuog wake-up fix from offline softirq
 - Rust RCU Guard methods marked as inline
 - Updated MAINTAINERS with Joel’s and Zqiang's new email address
 - Replaced magic constant in rcu_seq_done_exact() with named constant
 - Added warning mechanism to validate rcu_seq_done_exact()
 - Switched SRCU polling API to use rcu_seq_done_exact()
 - Commented on redundant delta check in rcu_seq_done_exact()
 - Made ->gpwrap tests in rcutorture more frequent
 - Fixed reuse of ARM64 images in rcutorture
 - rcutorture improved to check Kconfig and reader conflict handling
 - Extracted logic from rcu_torture_one_read() for clarity
 - Updated LWN RCU API documentation links
 - Enabled --do-rt in torture.sh for CONFIG_PREEMPT_RT
 - Added tests for SRCU up/down reader primitives
 - Added comments and delays checks in rcutorture
 - Deprecated srcu_read_lock_lite() and srcu_read_unlock_lite() via checkpatch
 - Added --do-normal and --do-no-normal to torture.sh
 - Added RCU Rust binding tests to torture.sh
 - Reduced CPU overcommit and removed MAXSMP/CPUMASK_OFFSTACK in TREE01
 - Replaced kmalloc() with kcalloc() in rcuscale
 - Refined listRCU example code for stale data elimination
 - Fixed hardirq count bug for x86 in cpu_stall_cputime
 - Added safety checks in rcu/nocb for offloaded rdp access
 - Other miscellaneous changes

* tag 'next.2025.05.17a' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (27 commits)
  rcutorture: Fix issue with re-using old images on ARM64
  rcutorture: Remove MAXSMP and CPUMASK_OFFSTACK from TREE01
  rcutorture: Reduce TREE01 CPU overcommit
  torture: Check for "Call trace:" as well as "Call Trace:"
  rcutorture: Perform more frequent testing of ->gpwrap
  torture: Add testing of RCU's Rust bindings to torture.sh
  torture: Add --do-{,no-}normal to torture.sh
  checkpatch: Deprecate srcu_read_lock_lite() and srcu_read_unlock_lite()
  rcutorture: Comment invocations of tick_dep_set_task()
  rcu/nocb: Add Safe checks for access offloaded rdp
  rcuscale: using kcalloc() to relpace kmalloc()
  doc/RCU/listRCU: refine example code for eliminating stale data
  doc: Update LWN RCU API links in whatisRCU.rst
  Revert "rcu/nocb: Fix rcuog wake-up from offline softirq"
  rust: sync: rcu: Mark Guard methods as inline
  rcu/cpu_stall_cputime: fix the hardirq count for x86 architecture
  rcu: Remove swake_up_one_online() bandaid
  MAINTAINERS: Update Zqiang's email address
  rcutorture: Make torture.sh --do-rt use CONFIG_PREEMPT_RT
  srcu: Use rcu_seq_done_exact() for polling API
  ...

1 files changed, 2 insertions, 1 deletions

diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index a9a811d9d7a3..3830c19cf2f6 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -168,7 +168,7 @@ struct rcu_snap_record {
 	u64		cputime_irq;	/* Accumulated cputime of hard irqs */
 	u64		cputime_softirq;/* Accumulated cputime of soft irqs */
 	u64		cputime_system; /* Accumulated cputime of kernel tasks */
-	unsigned long	nr_hardirqs;	/* Accumulated number of hard irqs */
+	u64		nr_hardirqs;	/* Accumulated number of hard irqs */
 	unsigned int	nr_softirqs;	/* Accumulated number of soft irqs */
 	unsigned long long nr_csw;	/* Accumulated number of task switches */
 	unsigned long   jiffies;	/* Track jiffies value */
@@ -183,6 +183,7 @@ struct rcu_data {
 	bool		core_needs_qs;	/* Core waits for quiescent state. */
 	bool		beenonline;	/* CPU online at least once. */
 	bool		gpwrap;		/* Possible ->gp_seq wrap. */
+	unsigned int	gpwrap_count;	/* Count of GP sequence wrap. */
 	bool		cpu_started;	/* RCU watching this onlining CPU. */
 	struct rcu_node *mynode;	/* This CPU's leaf of hierarchy */
 	unsigned long grpmask;		/* Mask to apply to leaf qsmask. */