Commit 348d3c58 authored by Zqiang's avatar Zqiang Committed by Tejun Heo
Browse files

sched_ext: Use kvfree_rcu() to release per-cpu ksyncs object 



The free_kick_syncs_rcu() rcu-callback only invoke kvfree() to
release per-cpu ksyncs object, this can use kvfree_rcu() replace
call_rcu() to release per-cpu ksyncs object in the free_kick_syncs().

Signed-off-by: default avatarZqiang <qiang.zhang@linux.dev>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent 1dcb98bb

kernel/sched/ext.c

+1 −8
Original line number Diff line number Diff line
@@ -4161,13 +4161,6 @@ static const char *scx_exit_reason(enum scx_exit_kind kind) 
	}

}



static void free_kick_syncs_rcu(struct rcu_head *rcu)

{

	struct scx_kick_syncs *ksyncs = container_of(rcu, struct scx_kick_syncs, rcu);



	kvfree(ksyncs);

}



static void free_kick_syncs(void)

{

	int cpu;
@@ -4178,7 +4171,7 @@ static void free_kick_syncs(void) 


		to_free = rcu_replace_pointer(*ksyncs, NULL, true);

		if (to_free)

			call_rcu(&to_free->rcu, free_kick_syncs_rcu);

			kvfree_rcu(to_free, rcu);

	}

}