diff mbox series

[v5,12/18] cred: Move call_rcu() to call_rcu_lazy()

Message ID 20220901221720.1105021-13-joel@joelfernandes.org (mailing list archive)
State New, archived
Headers show
Series Implement call_rcu_lazy() and miscellaneous fixes | expand

Commit Message

Joel Fernandes Sept. 1, 2022, 10:17 p.m. UTC 
This is required to prevent callbacks triggering RCU machinery too
quickly and too often, which adds more power to the system.

Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---
 kernel/cred.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/kernel/cred.c b/kernel/cred.c
index e10c15f51c1f..c7cb2e3ac73a 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -150,7 +150,7 @@  void __put_cred(struct cred *cred)
 	if (cred->non_rcu)
 		put_cred_rcu(&cred->rcu);
 	else
-		call_rcu(&cred->rcu, put_cred_rcu);
+		call_rcu_lazy(&cred->rcu, put_cred_rcu);
 }
 EXPORT_SYMBOL(__put_cred);