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

From: Joel Fernandes (Google)
Date: Thu Sep 01 2022 - 18:19:18 EST


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@xxxxxxxxxxxxxxxxx>
---
kernel/cred.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

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);

--
2.37.2.789.g6183377224-goog