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From: Matt Bobrowski <mattbobrowski@google.com>
To: Roman Gushchin <roman.gushchin@linux.dev>
Cc: bpf@vger.kernel.org, Michal Hocko <mhocko@suse.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Shakeel Butt <shakeel.butt@linux.dev>,
	JP Kobryn <inwardvessel@gmail.com>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Suren Baghdasaryan <surenb@google.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH bpf-next v3 01/17] bpf: move bpf_struct_ops_link into bpf.h
Date: Wed, 28 Jan 2026 11:28:48 +0000	[thread overview]
Message-ID: <aXny8JWF3KZiqBZi@google.com> (raw)
In-Reply-To: <20260127024421.494929-2-roman.gushchin@linux.dev>

On Mon, Jan 26, 2026 at 06:44:04PM -0800, Roman Gushchin wrote:
> Move struct bpf_struct_ops_link's definition into bpf.h,
> where other custom bpf links definitions are.
> 
> It's necessary to access its members from outside of generic
> bpf_struct_ops implementation, which will be done by following
> patches in the series.

Looks OK to me:

Acked-by: Matt Bobrowski <mattbobrowski@google.com>

> Signed-off-by: Roman Gushchin <roman.gushchin@linux.dev>
> ---
>  include/linux/bpf.h         | 6 ++++++
>  kernel/bpf/bpf_struct_ops.c | 6 ------
>  2 files changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> index 4427c6e98331..899dd911dc82 100644
> --- a/include/linux/bpf.h
> +++ b/include/linux/bpf.h
> @@ -1891,6 +1891,12 @@ struct bpf_raw_tp_link {
>  	u64 cookie;
>  };
>  
> +struct bpf_struct_ops_link {
> +	struct bpf_link link;
> +	struct bpf_map __rcu *map;
> +	wait_queue_head_t wait_hup;
> +};
> +
>  struct bpf_link_primer {
>  	struct bpf_link *link;
>  	struct file *file;
> diff --git a/kernel/bpf/bpf_struct_ops.c b/kernel/bpf/bpf_struct_ops.c
> index c43346cb3d76..de01cf3025b3 100644
> --- a/kernel/bpf/bpf_struct_ops.c
> +++ b/kernel/bpf/bpf_struct_ops.c
> @@ -55,12 +55,6 @@ struct bpf_struct_ops_map {
>  	struct bpf_struct_ops_value kvalue;
>  };
>  
> -struct bpf_struct_ops_link {
> -	struct bpf_link link;
> -	struct bpf_map __rcu *map;
> -	wait_queue_head_t wait_hup;
> -};
> -
>  static DEFINE_MUTEX(update_mutex);
>  
>  #define VALUE_PREFIX "bpf_struct_ops_"
> -- 
> 2.52.0
> 


  parent reply	other threads:[~2026-01-28 11:28 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-27  2:44 [PATCH bpf-next v3 00/17] mm: BPF OOM Roman Gushchin
2026-01-27  2:44 ` [PATCH bpf-next v3 01/17] bpf: move bpf_struct_ops_link into bpf.h Roman Gushchin
2026-01-27  5:50   ` Yafang Shao
2026-01-28 11:28   ` Matt Bobrowski [this message]
2026-01-27  2:44 ` [PATCH bpf-next v3 02/17] bpf: allow attaching struct_ops to cgroups Roman Gushchin
2026-01-27  3:08   ` bot+bpf-ci
2026-01-27  5:49   ` Yafang Shao
2026-01-28  3:10   ` Josh Don
2026-01-28 18:52     ` Roman Gushchin
2026-01-28 11:25   ` Matt Bobrowski
2026-01-28 19:18     ` Roman Gushchin
2026-01-27  2:44 ` [PATCH bpf-next v3 03/17] libbpf: fix return value on memory allocation failure Roman Gushchin
2026-01-27  5:52   ` Yafang Shao
2026-01-27  2:44 ` [PATCH bpf-next v3 04/17] libbpf: introduce bpf_map__attach_struct_ops_opts() Roman Gushchin
2026-01-27  3:08   ` bot+bpf-ci
2026-01-27  2:44 ` [PATCH bpf-next v3 05/17] bpf: mark struct oom_control's memcg field as TRUSTED_OR_NULL Roman Gushchin
2026-01-27  6:06   ` Yafang Shao
2026-02-02  4:56   ` Matt Bobrowski
2026-01-27  2:44 ` [PATCH bpf-next v3 06/17] mm: define mem_cgroup_get_from_ino() outside of CONFIG_SHRINKER_DEBUG Roman Gushchin
2026-01-27  6:12   ` Yafang Shao
2026-02-02  3:50   ` Shakeel Butt
2026-01-27  2:44 ` [PATCH bpf-next v3 07/17] mm: introduce BPF OOM struct ops Roman Gushchin
2026-01-27  9:38   ` Michal Hocko
2026-01-27 21:12     ` Roman Gushchin
2026-01-28  8:00       ` Michal Hocko
2026-01-28 18:44         ` Roman Gushchin
2026-02-02  4:06       ` Matt Bobrowski
2026-01-28  3:26   ` Josh Don
2026-01-28 19:03     ` Roman Gushchin
2026-01-28 11:19   ` Michal Hocko
2026-01-28 18:53     ` Roman Gushchin
2026-01-29 21:00   ` Martin KaFai Lau
2026-01-30 23:29     ` Roman Gushchin
2026-02-02 20:27       ` Martin KaFai Lau
2026-01-27  2:44 ` [PATCH bpf-next v3 08/17] mm: introduce bpf_oom_kill_process() bpf kfunc Roman Gushchin
2026-01-27 20:21   ` Martin KaFai Lau
2026-01-27 20:47     ` Roman Gushchin
2026-02-02  4:49   ` Matt Bobrowski
2026-01-27  2:44 ` [PATCH bpf-next v3 09/17] mm: introduce bpf_out_of_memory() BPF kfunc Roman Gushchin
2026-01-28 20:21   ` Matt Bobrowski
2026-01-27  2:44 ` [PATCH bpf-next v3 10/17] mm: introduce bpf_task_is_oom_victim() kfunc Roman Gushchin
2026-02-02  5:39   ` Matt Bobrowski
2026-02-02 17:30     ` Alexei Starovoitov
2026-02-03  0:14       ` Roman Gushchin
2026-02-03 13:23         ` Michal Hocko
2026-02-03 16:31           ` Alexei Starovoitov
2026-02-04  9:02             ` Michal Hocko
2026-02-05  0:12               ` Alexei Starovoitov
2026-01-27  2:44 ` [PATCH bpf-next v3 11/17] bpf: selftests: introduce read_cgroup_file() helper Roman Gushchin
2026-01-27  3:08   ` bot+bpf-ci
2026-01-27  2:44 ` [PATCH bpf-next v3 12/17] bpf: selftests: BPF OOM struct ops test Roman Gushchin
2026-01-27  2:44 ` [PATCH bpf-next v3 13/17] sched: psi: add a trace point to psi_avgs_work() Roman Gushchin
2026-01-27  2:44 ` [PATCH bpf-next v3 14/17] sched: psi: add cgroup_id field to psi_group structure Roman Gushchin
2026-01-27  2:44 ` [PATCH bpf-next v3 15/17] bpf: allow calling bpf_out_of_memory() from a PSI tracepoint Roman Gushchin
2026-01-27  9:02 ` [PATCH bpf-next v3 00/17] mm: BPF OOM Michal Hocko
2026-01-27 21:01   ` Roman Gushchin
2026-01-28  8:06     ` Michal Hocko
2026-01-28 16:59       ` Alexei Starovoitov
2026-01-28 18:23         ` Roman Gushchin
2026-01-28 18:53           ` Alexei Starovoitov
2026-02-02  3:26         ` Matt Bobrowski
2026-02-02 17:50           ` Alexei Starovoitov
2026-02-04 23:52             ` Matt Bobrowski

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