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Diffstat (limited to 'kernel')
-rw-r--r--kernel/bpf/arraymap.c4
-rw-r--r--kernel/bpf/syscall.c13
-rw-r--r--kernel/events/core.c2
3 files changed, 5 insertions, 14 deletions
diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c
index 0eb11b4ac4c7..daa4e0782cf7 100644
--- a/kernel/bpf/arraymap.c
+++ b/kernel/bpf/arraymap.c
@@ -270,9 +270,7 @@ static void *prog_fd_array_get_ptr(struct bpf_map *map, int fd)
static void prog_fd_array_put_ptr(void *ptr)
{
- struct bpf_prog *prog = ptr;
-
- bpf_prog_put_rcu(prog);
+ bpf_prog_put(ptr);
}
/* decrement refcnt of all bpf_progs that are stored in this map */
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 4b9bbfe764e8..04fc1022ad9f 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -487,7 +487,7 @@ static void bpf_prog_uncharge_memlock(struct bpf_prog *prog)
free_uid(user);
}
-static void __prog_put_common(struct rcu_head *rcu)
+static void __bpf_prog_put_rcu(struct rcu_head *rcu)
{
struct bpf_prog_aux *aux = container_of(rcu, struct bpf_prog_aux, rcu);
@@ -496,17 +496,10 @@ static void __prog_put_common(struct rcu_head *rcu)
bpf_prog_free(aux->prog);
}
-/* version of bpf_prog_put() that is called after a grace period */
-void bpf_prog_put_rcu(struct bpf_prog *prog)
-{
- if (atomic_dec_and_test(&prog->aux->refcnt))
- call_rcu(&prog->aux->rcu, __prog_put_common);
-}
-
void bpf_prog_put(struct bpf_prog *prog)
{
if (atomic_dec_and_test(&prog->aux->refcnt))
- __prog_put_common(&prog->aux->rcu);
+ call_rcu(&prog->aux->rcu, __bpf_prog_put_rcu);
}
EXPORT_SYMBOL_GPL(bpf_prog_put);
@@ -514,7 +507,7 @@ static int bpf_prog_release(struct inode *inode, struct file *filp)
{
struct bpf_prog *prog = filp->private_data;
- bpf_prog_put_rcu(prog);
+ bpf_prog_put(prog);
return 0;
}
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 19519ec39d51..e53dfb5b826e 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -7141,7 +7141,7 @@ static void perf_event_free_bpf_prog(struct perf_event *event)
prog = event->tp_event->prog;
if (prog && event->tp_event->bpf_prog_owner == event) {
event->tp_event->prog = NULL;
- bpf_prog_put_rcu(prog);
+ bpf_prog_put(prog);
}
}