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[4/4] rcu/kvfree: Switch to expedited version in slow path

Message ID 20240828110929.3713-4-urezki@gmail.com (mailing list archive)
State New
Headers show
Series [1/4] rcu/kvfree: Support dynamic rcu_head for single argument objects | expand

Commit Message

Uladzislau Rezki Aug. 28, 2024, 11:09 a.m. UTC 
For a single argument and its slow path, switch to expedited
version of synchronize_rcu(). This version is considered to
be more faster, thus under a high memory pressure a slow path
becoms more efficient.

Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
---
 kernel/rcu/tree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 030a453f36c6..835d90905ec1 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3922,7 +3922,7 @@  void kvfree_call_rcu(struct rcu_head *head, void *ptr)
 		debug_rcu_head_unqueue((struct rcu_head *) ptr);
 
 		if (!poll_state_synchronize_rcu_full(&old_snap))
-			synchronize_rcu();
+			synchronize_rcu_expedited();
 
 		kvfree(ptr);
 	}