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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: Zqiang <qiang.zhang@linux.dev>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Zqiang 2025-11-17 20:53:11 +08:00 committed by Tejun Heo
parent 1dcb98bbb7
commit 348d3c587a
1 changed files with 1 additions and 8 deletions
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9
kernel/sched/ext.c
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@ -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);
}
}