diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-16 10:05:03 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-19 23:05:38 +0200 |
| commit | 542a3f1a3cc19d971fdcc7fafd1ef19041508cfd (patch) | |
| tree | 779e9c9c0ed5b277c70d93e07e2e6316c6132d07 | |
| parent | 737ce5518a9cdfce3b18e3be51da6bc5e7ee2bf7 (diff) | |
Revert "kernel/sched: Modify initial boot task idle setup"
This reverts commit 3569ad59664f9fa3ba1d02a78810773b7f49702b which is
commit cff9b2332ab762b7e0586c793c431a8f2ea4db04 upstream.
Joel writes:
Let us drop this patch because it caused new tasks-RCU warnings (both
normal and rude tasks RCU) in my stable test rig. We are discussing
the "right fix" and at that time a backport can be done.
Reported-by: Joel Fernandes <joel@joelfernandes.org>
Link: https://lore.kernel.org/r/CAEXW_YT6bH70M1TF2TttB-_kP=RUv_1nsy_sHYi6_0oCrX3mVQ@mail.gmail.com
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | kernel/sched/core.c | 2 | ||||
| -rw-r--r-- | kernel/sched/idle.c | 1 |
2 files changed, 1 insertions, 2 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 02c91528127a..2324b7055260 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -8725,7 +8725,7 @@ void __init init_idle(struct task_struct *idle, int cpu) * PF_KTHREAD should already be set at this point; regardless, make it * look like a proper per-CPU kthread. */ - idle->flags |= PF_KTHREAD | PF_NO_SETAFFINITY; + idle->flags |= PF_IDLE | PF_KTHREAD | PF_NO_SETAFFINITY; kthread_set_per_cpu(idle, cpu); #ifdef CONFIG_SMP diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c index 6b8d2169d9ea..499a3e286cd0 100644 --- a/kernel/sched/idle.c +++ b/kernel/sched/idle.c @@ -397,7 +397,6 @@ EXPORT_SYMBOL_GPL(play_idle_precise); void cpu_startup_entry(enum cpuhp_state state) { - current->flags |= PF_IDLE; arch_cpu_idle_prepare(); cpuhp_online_idle(state); while (1) |