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| author | Paul E. McKenney <paulmck@kernel.org> | 2021-08-11 19:07:44 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-18 21:16:10 +0300 |
| commit | f85b0fe504acab831b3affa05a6ceae0ff81ff79 (patch) | |
| tree | 4d0a0a025e876c8fb57f64a15f5f13f029ef6c21 /kernel/rcu | |
| parent | e36b7768aad63cc19bab338c7fd6e06fbfc9ad49 (diff) | |
| download | linux-f85b0fe504acab831b3affa05a6ceae0ff81ff79.tar.xz | |
rcu-tasks: Move RTGS_WAIT_CBS to beginning of rcu_tasks_kthread() loop
[ Upstream commit 0db7c32ad3160ae06f497d48a74bd46a2a35e6bf ]
Early in debugging, it made some sense to differentiate the first
iteration from subsequent iterations, but now this just causes confusion.
This commit therefore moves the "set_tasks_gp_state(rtp, RTGS_WAIT_CBS)"
statement to the beginning of the "for" loop in rcu_tasks_kthread().
Reported-by: Neeraj Upadhyay <neeraju@codeaurora.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/tasks.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index 806160c44b17..6591914af486 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -197,6 +197,7 @@ static int __noreturn rcu_tasks_kthread(void *arg) * This loop is terminated by the system going down. ;-) */ for (;;) { + set_tasks_gp_state(rtp, RTGS_WAIT_CBS); /* Pick up any new callbacks. */ raw_spin_lock_irqsave(&rtp->cbs_lock, flags); @@ -236,8 +237,6 @@ static int __noreturn rcu_tasks_kthread(void *arg) } /* Paranoid sleep to keep this from entering a tight loop */ schedule_timeout_idle(rtp->gp_sleep); - - set_tasks_gp_state(rtp, RTGS_WAIT_CBS); } } |