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rcu/tree: Add comment to describe GP-done condition in fqs loop
authorNeeraj Upadhyay <quic_neeraju@quicinc.com>
Thu, 9 Jun 2022 07:13:40 +0000 (12:43 +0530)
committerPaul E. McKenney <paulmck@kernel.org>
Tue, 21 Jun 2022 22:05:35 +0000 (15:05 -0700)
commitf6035b4175a820764ffcd2b38b17722139ab5b22
tree52feca37c053de63ab1858c7c93cf368913d2f3dtree | snapshot
parent75891eff8ed367352c78cbfd98e73cc8e0d1d92ecommit | diff
rcu/tree: Add comment to describe GP-done condition in fqs loop

Add a comment to explain why !rcu_preempt_blocked_readers_cgp() condition
is required on root rnp node, for GP completion check in rcu_gp_fqs_loop().

Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
kernel/rcu/tree.c diff | blob | blame | history
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