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UPSTREAM: rcu/sync: Use call_rcu_hurry() instead of call_rcu

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call_rcu() changes to save power will slow down rcu sync. Use the
call_rcu_hurry() API instead which reverts to the old behavior.

[ paulmck: Apply s/call_rcu_flush/call_rcu_hurry/ feedback from Tejun Heo. ]

Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
(cherry picked from commit 7651d6b25086656eacfdd8356bfe3a21c0c2d79d)

Bug: 258241771
Signed-off-by: Joel Fernandes <joelaf@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/4909033
Reviewed-by: Vineeth Pillai <vineethrp@google.com>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Qais Yousef <qyousef@google.com>
Change-Id: I5123ba52f47676305dbcfa1233bf3b41f140766c
This commit is contained in:
Joel Fernandes (Google) 2022-10-16 16:22:59 +00:00 committed by Todd Kjos
parent c570c8fea3
commit 9b625f4978
1 changed files with 1 additions and 1 deletions
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kernel/rcu/sync.c
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@ -44,7 +44,7 @@ static void rcu_sync_func(struct rcu_head *rhp);
static void rcu_sync_call(struct rcu_sync *rsp)
{
call_rcu(&rsp->cb_head, rcu_sync_func);
call_rcu_hurry(&rsp->cb_head, rcu_sync_func);
}
/**