From nobody Sun Feb 8 15:29:20 2026 Received: from szxga04-in.huawei.com (szxga04-in.huawei.com [45.249.212.190]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9DCD01A38EF; Fri, 15 Mar 2024 06:54:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.190 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710485662; cv=none; b=KMs/CD/md3pz3Vs/3rgTJHbsj/CtvkzjM7tflYUyPC/QvcCjYco3XfuIvdJIzjPlQHb1sNB8QE03hjv3GRftuGby+rTWjmkGVjGC7frAij8UGSc0umcx/a2pPHD886Wumu2YVIzLPxjSWzjNVniEYhbdsqHBtWjEFlrG41jwado= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710485662; c=relaxed/simple; bh=DTWWED3utzA+ZuMoccKiNwpAtso/EWOE5CANqtTsna8=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=LEoShVyUt9ML3EH5iC8scVvTAIBN22pT2Hc/f9NC94xmu1te+4cICWF7zDb28EJl0WSmmx782fJAi+9V8lHnlEEIFEgSXjoueaI3EwRRdUItWyQuVh5PNS2+dmloPZ7Xr4650Ulki/3VVGI4Ezs2OWtyq5CwtpGfkHr/E8j8V0o= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.190 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.163.44]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4Tww056p5Hz2BgNG; Fri, 15 Mar 2024 14:51:49 +0800 (CST) Received: from canpemm500010.china.huawei.com (unknown [7.192.105.118]) by mail.maildlp.com (Postfix) with ESMTPS id D366A140157; Fri, 15 Mar 2024 14:54:18 +0800 (CST) Received: from huawei.com (10.175.127.227) by canpemm500010.china.huawei.com (7.192.105.118) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 15 Mar 2024 14:54:18 +0800 From: Ye Bin To: , , , CC: , Subject: [PATCH v6 2/8] tracing/probes: support '%pd' type for print struct dentry's name Date: Fri, 15 Mar 2024 14:55:34 +0800 Message-ID: <20240315065540.1181879-3-yebin10@huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20240315065540.1181879-1-yebin10@huawei.com> References: <20240315065540.1181879-1-yebin10@huawei.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To canpemm500010.china.huawei.com (7.192.105.118) Content-Type: text/plain; charset="utf-8" Similar to '%pd' for printk, use '%pd' for print struct dentry's name. Signed-off-by: Ye Bin --- kernel/trace/trace_kprobe.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index c4c6e0e0068b..7cbb43740b4f 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -779,6 +779,7 @@ static int __trace_kprobe_create(int argc, const char *= argv[]) char buf[MAX_EVENT_NAME_LEN]; char gbuf[MAX_EVENT_NAME_LEN]; char abuf[MAX_BTF_ARGS_LEN]; + char *dbuf =3D NULL; struct traceprobe_parse_context ctx =3D { .flags =3D TPARG_FL_KERNEL }; =20 switch (argv[0][0]) { @@ -930,6 +931,10 @@ static int __trace_kprobe_create(int argc, const char = *argv[]) argv =3D new_argv; } =20 + ret =3D traceprobe_expand_dentry_args(argc, argv, &dbuf); + if (ret) + goto out; + /* setup a probe */ tk =3D alloc_trace_kprobe(group, event, addr, symbol, offset, maxactive, argc, is_return); @@ -971,6 +976,7 @@ static int __trace_kprobe_create(int argc, const char *= argv[]) trace_probe_log_clear(); kfree(new_argv); kfree(symbol); + kfree(dbuf); return ret; =20 parse_error: --=20 2.31.1