linux-kernel - Re: [PATCH bpf-next v2 3/8] bpftool: Add support for task local storage

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Date:   Tue, 3 Nov 2020 23:50:17 +0000
From:   Song Liu <songliubraving@...com>
To:     KP Singh <kpsingh@...omium.org>
CC:     open list <linux-kernel@...r.kernel.org>,
        bpf <bpf@...r.kernel.org>, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin Lau <kafai@...com>, Paul Turner <pjt@...gle.com>,
        Jann Horn <jannh@...gle.com>, Hao Luo <haoluo@...gle.com>
Subject: Re: [PATCH bpf-next v2 3/8] bpftool: Add support for task local
 storage



> On Nov 3, 2020, at 7:31 AM, KP Singh <kpsingh@...omium.org> wrote:
> 
> From: KP Singh <kpsingh@...gle.com>
> 
> Signed-off-by: KP Singh <kpsingh@...gle.com>

LGTM, except that commit log is missing (also for 2/8). 

Acked-by: Song Liu <songliubraving@...com>

> ---
> tools/bpf/bpftool/Documentation/bpftool-map.rst | 3 ++-
> tools/bpf/bpftool/bash-completion/bpftool       | 2 +-
> tools/bpf/bpftool/map.c                         | 4 +++-
> 3 files changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/tools/bpf/bpftool/Documentation/bpftool-map.rst b/tools/bpf/bpftool/Documentation/bpftool-map.rst
> index dade10cdf295..3d52256ba75f 100644
> --- a/tools/bpf/bpftool/Documentation/bpftool-map.rst
> +++ b/tools/bpf/bpftool/Documentation/bpftool-map.rst
> @@ -50,7 +50,8 @@ MAP COMMANDS
> |		| **lru_percpu_hash** | **lpm_trie** | **array_of_maps** | **hash_of_maps**
> |		| **devmap** | **devmap_hash** | **sockmap** | **cpumap** | **xskmap** | **sockhash**
> |		| **cgroup_storage** | **reuseport_sockarray** | **percpu_cgroup_storage**
> -|		| **queue** | **stack** | **sk_storage** | **struct_ops** | **ringbuf** | **inode_storage** }
> +|		| **queue** | **stack** | **sk_storage** | **struct_ops** | **ringbuf** | **inode_storage**
> +		| **task_storage** }
> 
> DESCRIPTION
> ===========
> diff --git a/tools/bpf/bpftool/bash-completion/bpftool b/tools/bpf/bpftool/bash-completion/bpftool
> index 3f1da30c4da6..fdffbc64c65c 100644
> --- a/tools/bpf/bpftool/bash-completion/bpftool
> +++ b/tools/bpf/bpftool/bash-completion/bpftool
> @@ -705,7 +705,7 @@ _bpftool()
>                                 hash_of_maps devmap devmap_hash sockmap cpumap \
>                                 xskmap sockhash cgroup_storage reuseport_sockarray \
>                                 percpu_cgroup_storage queue stack sk_storage \
> -                                struct_ops inode_storage' -- \
> +                                struct_ops inode_storage task_storage' -- \
>                                                    "$cur" ) )
>                             return 0
>                             ;;
> diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c
> index a7efbd84fbcc..b400364ee054 100644
> --- a/tools/bpf/bpftool/map.c
> +++ b/tools/bpf/bpftool/map.c
> @@ -51,6 +51,7 @@ const char * const map_type_name[] = {
> 	[BPF_MAP_TYPE_STRUCT_OPS]		= "struct_ops",
> 	[BPF_MAP_TYPE_RINGBUF]			= "ringbuf",
> 	[BPF_MAP_TYPE_INODE_STORAGE]		= "inode_storage",
> +	[BPF_MAP_TYPE_TASK_STORAGE]		= "task_storage",
> };
> 
> const size_t map_type_name_size = ARRAY_SIZE(map_type_name);
> @@ -1464,7 +1465,8 @@ static int do_help(int argc, char **argv)
> 		"                 lru_percpu_hash | lpm_trie | array_of_maps | hash_of_maps |\n"
> 		"                 devmap | devmap_hash | sockmap | cpumap | xskmap | sockhash |\n"
> 		"                 cgroup_storage | reuseport_sockarray | percpu_cgroup_storage |\n"
> -		"                 queue | stack | sk_storage | struct_ops | ringbuf | inode_storage }\n"
> +		"                 queue | stack | sk_storage | struct_ops | ringbuf | inode_storage |\n"
> +		"		  task_storage }\n"
> 		"       " HELP_SPEC_OPTIONS "\n"
> 		"",
> 		bin_name, argv[-2]);
> -- 
> 2.29.1.341.ge80a0c044ae-goog
>