diff mbox series

[RFC,v1,08/14] net/core: Move call_rcu() to call_rcu_lazy()

Message ID 20220512030442.2530552-9-joel@joelfernandes.org (mailing list archive)
State Superseded
Headers show
Series Implement call_rcu_lazy() and miscellaneous fixes | expand

Commit Message

Joel Fernandes May 12, 2022, 3:04 a.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>
---
 net/core/dst.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/net/core/dst.c b/net/core/dst.c
index d16c2c9bfebd..68c240a4a0d7 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -174,7 +174,7 @@  void dst_release(struct dst_entry *dst)
 			net_warn_ratelimited("%s: dst:%p refcnt:%d\n",
 					     __func__, dst, newrefcnt);
 		if (!newrefcnt)
-			call_rcu(&dst->rcu_head, dst_destroy_rcu);
+			call_rcu_lazy(&dst->rcu_head, dst_destroy_rcu);
 	}
 }
 EXPORT_SYMBOL(dst_release);