From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/kernel/bpf/bpf_local_storage.c | 16 +++++++++++++---
1 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/kernel/kernel/bpf/bpf_local_storage.c b/kernel/kernel/bpf/bpf_local_storage.c
index 8aaaaef..f753965 100644
--- a/kernel/kernel/bpf/bpf_local_storage.c
+++ b/kernel/kernel/bpf/bpf_local_storage.c
@@ -48,9 +48,19 @@
return map->ops->map_owner_storage_ptr(owner);
}
+static bool selem_linked_to_storage_lockless(const struct bpf_local_storage_elem *selem)
+{
+ return !hlist_unhashed_lockless(&selem->snode);
+}
+
static bool selem_linked_to_storage(const struct bpf_local_storage_elem *selem)
{
return !hlist_unhashed(&selem->snode);
+}
+
+static bool selem_linked_to_map_lockless(const struct bpf_local_storage_elem *selem)
+{
+ return !hlist_unhashed_lockless(&selem->map_node);
}
static bool selem_linked_to_map(const struct bpf_local_storage_elem *selem)
@@ -140,7 +150,7 @@
struct bpf_local_storage *local_storage;
bool free_local_storage = false;
- if (unlikely(!selem_linked_to_storage(selem)))
+ if (unlikely(!selem_linked_to_storage_lockless(selem)))
/* selem has already been unlinked from sk */
return;
@@ -167,7 +177,7 @@
struct bpf_local_storage_map *smap;
struct bpf_local_storage_map_bucket *b;
- if (unlikely(!selem_linked_to_map(selem)))
+ if (unlikely(!selem_linked_to_map_lockless(selem)))
/* selem has already be unlinked from smap */
return;
@@ -365,7 +375,7 @@
err = check_flags(old_sdata, map_flags);
if (err)
return ERR_PTR(err);
- if (old_sdata && selem_linked_to_storage(SELEM(old_sdata))) {
+ if (old_sdata && selem_linked_to_storage_lockless(SELEM(old_sdata))) {
copy_map_value_locked(&smap->map, old_sdata->data,
value, false);
return old_sdata;
--
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