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authorPaul E. McKenney <paulmck@kernel.org>2022-05-17 03:56:16 +0300
committerPaul E. McKenney <paulmck@kernel.org>2022-06-20 19:22:28 +0300
commit434c9eefb959c36331a93617ea95df903469b99f (patch)
tree4ca98f3c279c7595a906f3a8b9f8e315befd418c /init
parentf90f19da88bfe32dd1fdfd104de4c0526a3be701 (diff)
downloadlinux-434c9eefb959c36331a93617ea95df903469b99f.tar.xz
rcu-tasks: Add data structures for lightweight grace periods
This commit adds fields to task_struct and to rcu_tasks_percpu that will be used to avoid the task-list scan for RCU Tasks Trace grace periods, and also initializes these fields. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Martin KaFai Lau <kafai@fb.com> Cc: KP Singh <kpsingh@kernel.org>
Diffstat (limited to 'init')
-rw-r--r--init/init_task.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/init/init_task.c b/init/init_task.c
index 73cc8f03511a..ff6c4b9bfe6b 100644
--- a/init/init_task.c
+++ b/init/init_task.c
@@ -157,6 +157,7 @@ struct task_struct init_task
.trc_reader_nesting = 0,
.trc_reader_special.s = 0,
.trc_holdout_list = LIST_HEAD_INIT(init_task.trc_holdout_list),
+ .trc_blkd_node = LIST_HEAD_INIT(init_task.trc_blkd_node),
#endif
#ifdef CONFIG_CPUSETS
.mems_allowed_seq = SEQCNT_SPINLOCK_ZERO(init_task.mems_allowed_seq,