Improve readability of kvfree_rcu_queue_batch() function in away that, after a first batch queuing, the loop is break and success value is returned to a caller.
There is no reason to loop and check batches further as all outstanding objects have already been picked and attached to a certain batch to complete an offloading. Link: https://lore.kernel.org/lkml/ZvWUt2oyXRsvJRNc@pc636/T/ Suggested-by: Linus Torvalds <torva...@linux-foundation.org> Signed-off-by: Uladzislau Rezki (Sony) <ure...@gmail.com> --- kernel/rcu/tree.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index a60616e69b66..b1f883fcd918 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -3607,11 +3607,12 @@ kvfree_rcu_queue_batch(struct kfree_rcu_cpu *krcp) } // One work is per one batch, so there are three - // "free channels", the batch can handle. It can - // be that the work is in the pending state when - // channels have been detached following by each - // other. + // "free channels", the batch can handle. Break + // the loop since it is done with this CPU thus + // queuing an RCU work is _always_ success here. queued = queue_rcu_work(system_unbound_wq, &krwp->rcu_work); + WARN_ON_ONCE(!queued); + break; } } -- 2.39.5
