diff options
| author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-08-14 18:45:08 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-08-19 22:04:25 -0400 |
| commit | 3d84522f7f858684b36bd573e926302921da272d (patch) | |
| tree | 6ae4adda4fbc3eb677731377a4b84821a1564889 /kernel/rcu/pending.c | |
| parent | 1d7f9e1013ef3a9e3ee4803520ed83c3587e2c11 (diff) | |
rcu: Switch kvfree_rcu() to new rcu_pendingrcu_pending
This nets us a slight performance increase, and converts to common
code.
Todo - re-add the shrinker, so that memory reclaim can free expired
objects and expedite a grace period when necessary.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'kernel/rcu/pending.c')
| -rw-r--r-- | kernel/rcu/pending.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/rcu/pending.c b/kernel/rcu/pending.c index c0e2351ba198..9c57f373d494 100644 --- a/kernel/rcu/pending.c +++ b/kernel/rcu/pending.c @@ -601,3 +601,23 @@ int rcu_pending_init(struct rcu_pending *pending, return 0; } + +#ifndef CONFIG_TINY_RCU +/* kvfree_rcu */ + +static struct rcu_pending kvfree_rcu_pending; + +void kvfree_call_rcu(struct rcu_head *head, void *ptr) +{ + BUG_ON(!ptr); + + __rcu_pending_enqueue(&kvfree_rcu_pending, head, ptr, head == NULL); +} +EXPORT_SYMBOL_GPL(kvfree_call_rcu); + +void __init kvfree_rcu_pending_init(void) +{ + if (rcu_pending_init(&kvfree_rcu_pending, NULL, RCU_PENDING_KVFREE_FN)) + panic("%s failed\n", __func__); +} +#endif |