From: Yonghong Song <yonghong.song@linux.dev>
To: Amery Hung <ameryhung@gmail.com>, bpf@vger.kernel.org
Cc: alexei.starovoitov@gmail.com, andrii@kernel.org,
daniel@iogearbox.net, eddyz87@gmail.com, memxor@gmail.com,
martin.lau@kernel.org, kernel-team@meta.com
Subject: Re: [PATCH bpf v2 2/2] selftests/bpf: Test cgroup link replace with BPF_F_PREORDER
Date: Sat, 20 Jun 2026 13:46:55 -0700 [thread overview]
Message-ID: <45887d00-9495-4069-9c97-34498cc90e88@linux.dev> (raw)
In-Reply-To: <20260619063520.2690547-3-ameryhung@gmail.com>
On 6/18/26 11:35 PM, Amery Hung wrote:
> Add a cgroup_preorder case that attaches a normal and a BPF_F_PREORDER
> program to a cgroup (effective order [2, 1]), then replaces the normal
> link's program via bpf_link_update() and checks the effective order
> becomes [2, 3] — i.e. only the non-preorder slot changes. Without the
> replace_effective_prog() fix the array is corrupted and the order is
> wrong.
>
> Signed-off-by: Amery Hung <ameryhung@gmail.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
prev parent reply other threads:[~2026-06-20 20:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-19 6:35 [PATCH bpf v2 0/2] Fix effective prog array indexing with BPF_F_PREORDER Amery Hung
2026-06-19 6:35 ` [PATCH bpf v2 1/2] bpf: Fix effective prog array index " Amery Hung
2026-06-19 6:46 ` sashiko-bot
2026-06-20 20:54 ` Yonghong Song
2026-06-20 20:45 ` Yonghong Song
2026-06-19 6:35 ` [PATCH bpf v2 2/2] selftests/bpf: Test cgroup link replace " Amery Hung
2026-06-20 20:46 ` Yonghong Song [this message]
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