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GET /api/patches/1238816/?format=api
{ "id": 1238816, "url": "http://patchwork.ozlabs.org/api/patches/1238816/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/20200216193005.144157-10-jolsa@kernel.org/", "project": { "id": 7, "url": "http://patchwork.ozlabs.org/api/projects/7/?format=api", "name": "Linux network development", "link_name": "netdev", "list_id": "netdev.vger.kernel.org", "list_email": "netdev@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20200216193005.144157-10-jolsa@kernel.org>", "list_archive_url": null, "date": "2020-02-16T19:29:56", "name": "[09/18] bpf: Add bpf_ksym_add/del functions", "commit_ref": null, "pull_url": null, "state": "changes-requested", "archived": false, "hash": "6b22965c77153621db36db4e6d12c505aa3810a3", "submitter": { "id": 73687, "url": "http://patchwork.ozlabs.org/api/people/73687/?format=api", "name": "Jiri Olsa", "email": "jolsa@kernel.org" }, "delegate": { "id": 77147, "url": "http://patchwork.ozlabs.org/api/users/77147/?format=api", "username": "bpf", "first_name": "BPF", "last_name": "Maintainers", "email": "bpf@iogearbox.net" }, "mbox": "http://patchwork.ozlabs.org/project/netdev/patch/20200216193005.144157-10-jolsa@kernel.org/mbox/", "series": [ { "id": 158829, "url": "http://patchwork.ozlabs.org/api/series/158829/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=158829", "date": "2020-02-16T19:29:47", "name": "bpf: Add trampoline and dispatcher to /proc/kallsyms", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/158829/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1238816/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1238816/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<netdev-owner@vger.kernel.org>", "X-Original-To": "patchwork-incoming-netdev@ozlabs.org", "Delivered-To": "patchwork-incoming-netdev@ozlabs.org", "Authentication-Results": [ "ozlabs.org; spf=none (no SPF record)\n\tsmtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67;\n\thelo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org;\n\tdmarc=fail (p=none dis=none) header.from=kernel.org" ], "Received": [ "from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 48LHKT6csMz9sP7\n\tfor <patchwork-incoming-netdev@ozlabs.org>;\n\tMon, 17 Feb 2020 06:31:09 +1100 (AEDT)", "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1727891AbgBPTbJ convert rfc822-to-8bit (ORCPT\n\t<rfc822;patchwork-incoming-netdev@ozlabs.org>);\n\tSun, 16 Feb 2020 14:31:09 -0500", "from us-smtp-1.mimecast.com ([205.139.110.61]:24677 \"EHLO\n\tus-smtp-delivery-1.mimecast.com\" rhost-flags-OK-OK-OK-FAIL)\n\tby vger.kernel.org with ESMTP id S1726719AbgBPTbI (ORCPT\n\t<rfc822;netdev@vger.kernel.org>); Sun, 16 Feb 2020 14:31:08 -0500", "from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com\n\t[209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id\n\tus-mta-368-88P8VVDbP9GWfOCtG5TvUA-1; Sun, 16 Feb 2020 14:31:05 -0500", "from smtp.corp.redhat.com\n\t(int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mimecast-mx01.redhat.com (Postfix) with ESMTPS id 07D6C8017CC;\n\tSun, 16 Feb 2020 19:31:03 +0000 (UTC)", "from krava.redhat.com (ovpn-204-28.brq.redhat.com [10.40.204.28])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id E8B598AC5B;\n\tSun, 16 Feb 2020 19:30:54 +0000 (UTC)" ], "From": "Jiri Olsa <jolsa@kernel.org>", "To": "Alexei Starovoitov <ast@kernel.org>,\n\tDaniel Borkmann <daniel@iogearbox.net>", "Cc": "netdev@vger.kernel.org, bpf@vger.kernel.org, Andrii Nakryiko\n\t<andriin@fb.com>, Yonghong Song <yhs@fb.com>, Song Liu\n\t<songliubraving@fb.com>, Martin KaFai Lau <kafai@fb.com>,\n\tJakub Kicinski <kuba@kernel.org>, David Miller <davem@redhat.com>,\n\t=?utf-8?b?QmrDtnJuIFTDtnBlbA==?= <bjorn.topel@intel.com>,\n\tJohn Fastabend <john.fastabend@gmail.com>, Jesper Dangaard Brouer\n\t<hawk@kernel.org>, Arnaldo Carvalho de Melo <acme@redhat.com>", "Subject": "[PATCH 09/18] bpf: Add bpf_ksym_add/del functions", "Date": "Sun, 16 Feb 2020 20:29:56 +0100", "Message-Id": "<20200216193005.144157-10-jolsa@kernel.org>", "In-Reply-To": "<20200216193005.144157-1-jolsa@kernel.org>", "References": "<20200216193005.144157-1-jolsa@kernel.org>", "MIME-Version": "1.0", "X-Scanned-By": "MIMEDefang 2.79 on 10.5.11.11", "X-MC-Unique": "88P8VVDbP9GWfOCtG5TvUA-1", "X-Mimecast-Spam-Score": "0", "X-Mimecast-Originator": "kernel.org", "Content-Type": "text/plain; charset=WINDOWS-1252", "Content-Transfer-Encoding": "8BIT", "Sender": "netdev-owner@vger.kernel.org", "Precedence": "bulk", "List-ID": "<netdev.vger.kernel.org>", "X-Mailing-List": "netdev@vger.kernel.org" }, "content": "Adding bpf_ksym_add/del functions as locked version\nfor __bpf_ksym_add/del. It will be used in following\npatches for bpf_trampoline and bpf_dispatcher.\n\nSigned-off-by: Jiri Olsa <jolsa@kernel.org>\n---\n include/linux/bpf.h | 3 +++\n kernel/bpf/core.c | 14 ++++++++++++++\n 2 files changed, 17 insertions(+)", "diff": "diff --git a/include/linux/bpf.h b/include/linux/bpf.h\nindex 5d6649cdc3df..76934893bccf 100644\n--- a/include/linux/bpf.h\n+++ b/include/linux/bpf.h\n@@ -573,6 +573,9 @@ struct bpf_image {\n #define BPF_IMAGE_SIZE (PAGE_SIZE - sizeof(struct bpf_image))\n bool is_bpf_image_address(unsigned long address);\n void *bpf_image_alloc(void);\n+/* Called only from code, so there's no need for stubs. */\n+void bpf_ksym_add(struct bpf_ksym *ksym);\n+void bpf_ksym_del(struct bpf_ksym *ksym);\n #else\n static inline struct bpf_trampoline *bpf_trampoline_lookup(u64 key)\n {\ndiff --git a/kernel/bpf/core.c b/kernel/bpf/core.c\nindex f361cfdf8d9e..739bef60d868 100644\n--- a/kernel/bpf/core.c\n+++ b/kernel/bpf/core.c\n@@ -655,6 +655,13 @@ static void __bpf_ksym_add(struct bpf_ksym *ksym)\n \tlatch_tree_insert(&ksym->tnode, &bpf_ksym_tree, &bpf_ksym_tree_ops);\n }\n \n+void bpf_ksym_add(struct bpf_ksym *ksym)\n+{\n+\tspin_lock_bh(&bpf_lock);\n+\t__bpf_ksym_add(ksym);\n+\tspin_unlock_bh(&bpf_lock);\n+}\n+\n static void __bpf_ksym_del(struct bpf_ksym *ksym)\n {\n \tif (list_empty(&ksym->lnode))\n@@ -664,6 +671,13 @@ static void __bpf_ksym_del(struct bpf_ksym *ksym)\n \tlist_del_rcu(&ksym->lnode);\n }\n \n+void bpf_ksym_del(struct bpf_ksym *ksym)\n+{\n+\tspin_lock_bh(&bpf_lock);\n+\t__bpf_ksym_del(ksym);\n+\tspin_unlock_bh(&bpf_lock);\n+}\n+\n static bool bpf_prog_kallsyms_candidate(const struct bpf_prog *fp)\n {\n \treturn fp->jited && !bpf_prog_was_classic(fp);\n", "prefixes": [ "09/18" ] }