From patchwork Fri May 1 06:30:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ritesh Harjani X-Patchwork-Id: 11522147 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DD3A1913 for ; Fri, 1 May 2020 06:31:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CFC61208DB for ; Fri, 1 May 2020 06:31:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728366AbgEAGbB (ORCPT ); Fri, 1 May 2020 02:31:01 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:34854 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728253AbgEAGbB (ORCPT ); Fri, 1 May 2020 02:31:01 -0400 Received: from pps.filterd (m0098416.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 04162Chk108405; Fri, 1 May 2020 02:30:54 -0400 Received: from ppma03ams.nl.ibm.com (62.31.33a9.ip4.static.sl-reverse.com [169.51.49.98]) by mx0b-001b2d01.pphosted.com with ESMTP id 30r5cmnj7r-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 01 May 2020 02:30:54 -0400 Received: from pps.filterd (ppma03ams.nl.ibm.com [127.0.0.1]) by ppma03ams.nl.ibm.com (8.16.0.27/8.16.0.27) with SMTP id 0416AvA7030095; Fri, 1 May 2020 06:30:53 GMT Received: from b06cxnps4074.portsmouth.uk.ibm.com (d06relay11.portsmouth.uk.ibm.com [9.149.109.196]) by ppma03ams.nl.ibm.com with ESMTP id 30mcu5v50h-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 01 May 2020 06:30:52 +0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 0416UogN61145328 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 1 May 2020 06:30:50 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 40B0BA405F; Fri, 1 May 2020 06:30:50 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id AC6FBA405B; Fri, 1 May 2020 06:30:48 +0000 (GMT) Received: from localhost.localdomain.com (unknown [9.85.81.13]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 1 May 2020 06:30:48 +0000 (GMT) From: Ritesh Harjani To: linux-ext4@vger.kernel.org Cc: "Paul E . McKenney" , linux-fsdevel@vger.kernel.org, Jan Kara , tytso@mit.edu, "Aneesh Kumar K . V" , Ritesh Harjani Subject: [RFC 20/20] ext4: Add process name and pid in ext4_msg() Date: Fri, 1 May 2020 12:00:02 +0530 Message-Id: <755276113af060c4da0dcdad3a9b2ba6ebecc0ca.1588313626.git.riteshh@linux.ibm.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: References: MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.676 definitions=2020-05-01_01:2020-04-30,2020-05-01 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 mlxscore=0 suspectscore=1 bulkscore=0 priorityscore=1501 mlxlogscore=999 malwarescore=0 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2005010040 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org This adds process name and pid for ext4_msg(). I found this to be useful. For e.g. below print gives more info about process name and pid. [ 7671.131912] [mount/12543] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: acl,user_xattr Signed-off-by: Ritesh Harjani --- fs/ext4/super.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index bf5fcb477f66..5067a47f4f46 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -756,7 +756,8 @@ void __ext4_msg(struct super_block *sb, va_start(args, fmt); vaf.fmt = fmt; vaf.va = &args; - printk("%sEXT4-fs (%s): %pV\n", prefix, sb->s_id, &vaf); + printk("%s [%s/%d] EXT4-fs (%s): %pV\n", prefix, current->comm, + task_pid_nr(current), sb->s_id, &vaf); va_end(args); }