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authorPaolo Bonzini <pbonzini@redhat.com>2024-10-06 03:59:22 -0400
committerPaolo Bonzini <pbonzini@redhat.com>2024-10-06 03:59:22 -0400
commitc8d430db8eec7d4fd13a6bea27b7086a54eda6da (patch)
tree3c9b35bc9372232183e745cc2a03995a8d053ff6 /kernel/rcu/tree.h
parent2a5fe5a01668e831af1de3951718fbf88b9a9b9c (diff)
parenta1d402abf8e3ff1d821e88993fc5331784fac0da (diff)
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Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 6.12, take #1 - Fix pKVM error path on init, making sure we do not change critical system registers as we're about to fail - Make sure that the host's vector length is at capped by a value common to all CPUs - Fix kvm_has_feat*() handling of "negative" features, as the current code is pretty broken - Promote Joey to the status of official reviewer, while James steps down -- hopefully only temporarly
Diffstat (limited to 'kernel/rcu/tree.h')
-rw-r--r--kernel/rcu/tree.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index fcf2b4aa3441..a9a811d9d7a3 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -206,7 +206,7 @@ struct rcu_data {
long blimit; /* Upper limit on a processed batch */
/* 3) dynticks interface. */
- int dynticks_snap; /* Per-GP tracking for dynticks. */
+ int watching_snap; /* Per-GP tracking for dynticks. */
bool rcu_need_heavy_qs; /* GP old, so heavy quiescent state! */
bool rcu_urgent_qs; /* GP old need light quiescent state. */
bool rcu_forced_tick; /* Forced tick to provide QS. */
@@ -215,7 +215,7 @@ struct rcu_data {
/* 4) rcu_barrier(), OOM callbacks, and expediting. */
unsigned long barrier_seq_snap; /* Snap of rcu_state.barrier_sequence. */
struct rcu_head barrier_head;
- int exp_dynticks_snap; /* Double-check need for IPI. */
+ int exp_watching_snap; /* Double-check need for IPI. */
/* 5) Callback offloading. */
#ifdef CONFIG_RCU_NOCB_CPU
@@ -411,7 +411,6 @@ struct rcu_state {
arch_spinlock_t ofl_lock ____cacheline_internodealigned_in_smp;
/* Synchronize offline with */
/* GP pre-initialization. */
- int nocb_is_setup; /* nocb is setup from boot */
/* synchronize_rcu() part. */
struct llist_head srs_next; /* request a GP users. */
@@ -420,6 +419,11 @@ struct rcu_state {
struct sr_wait_node srs_wait_nodes[SR_NORMAL_GP_WAIT_HEAD_MAX];
struct work_struct srs_cleanup_work;
atomic_t srs_cleanups_pending; /* srs inflight worker cleanups. */
+
+#ifdef CONFIG_RCU_NOCB_CPU
+ struct mutex nocb_mutex; /* Guards (de-)offloading */
+ int nocb_is_setup; /* nocb is setup from boot */
+#endif
};
/* Values for rcu_state structure's gp_flags field. */