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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. ]

Bug: 258241771
Bug: 222463781
Test: CQ
Change-Id: I5123ba52f47676305dbcfa1233bf3b41f140766c
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
(cherry picked from commit 7651d6b250)
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/4318048
Reviewed-by: Sean Paul <sean@poorly.run>
Commit-Queue: Joel Fernandes <joelaf@google.com>
Reviewed-by: Vineeth Pillai <vineethrp@google.com>
Tested-by: Joel Fernandes <joelaf@google.com>
(cherry picked from commit 183fce4e1bfbbae1266ec90c6bb871b51d7af81c)
[Cherry picked from chromeos-5.15 tree. Minor tweaks to commit message
to match Android style]
Signed-off-by: Qais Yousef <qyousef@google.com>
This commit is contained in:
Joel Fernandes (Google)
2022-10-16 16:22:59 +00:00
committed by Treehugger Robot
parent 222a4cd66c
commit a4cc1aa22d
1 changed files with 1 additions and 1 deletions
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2
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);
}
/**