From ac00737f4e8198f8ff5007c70af4dfe4fd47ea94 Mon Sep 17 00:00:00 2001
From: Tom Herbert <tom@herbertland.com>
Date: Wed, 14 Oct 2015 14:40:44 -0700
Subject: bpf: Need to call bpf_prog_uncharge_memlock from bpf_prog_put
Currently, is only called from __prog_put_rcu in the bpf_prog_release
path. Need this to call this from bpf_prog_put also to get correct
accounting.
Fixes: aaac3ba95e4c8b49 ("bpf: charge user for creation of BPF maps and programs")
Signed-off-by: Tom Herbert <tom@herbertland.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
kernel/bpf/syscall.c | 1 +
1 file changed, 1 insertion(+)
(limited to 'kernel/bpf/syscall.c')
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index f640e5f7afbd..687dd6ca574d 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -520,6 +520,7 @@ void bpf_prog_put(struct bpf_prog *prog)
{
if (atomic_dec_and_test(&prog->aux->refcnt)) {
free_used_maps(prog->aux);
+ bpf_prog_uncharge_memlock(prog);
bpf_prog_free(prog);
}
}
--
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