From patchwork Thu Aug 23 04:25:41 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zheng Liu X-Patchwork-Id: 179499 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id D1C192C0097 for ; Thu, 23 Aug 2012 14:16:05 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750863Ab2HWEQC (ORCPT ); Thu, 23 Aug 2012 00:16:02 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:42065 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751425Ab2HWEP6 (ORCPT ); Thu, 23 Aug 2012 00:15:58 -0400 Received: by mail-pb0-f46.google.com with SMTP id rr13so602444pbb.19 for ; Wed, 22 Aug 2012 21:15:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; bh=FzQDEci24E3x246amB+tisBEvZvVi1n3msJEWDDs30k=; b=iv6kjVrk+7OJme+5tDCpwoJNVXvtLfjFj/eqlHFhXBOytKEwCCYEOZYVGWpgdR9Z02 o/BZYlN6w3JBjU+UVyVFCCQkyRcfzJQjlwCC0FFpPxSsU3WsuTzU+XBGajvPEPU93SBK mTDikVNIuJTgyk/msTZbSZw4bTNx08W752jSsY+0AaOGR7hlQS1We41If0VzvZI1fsVy CdaD0mxNdCvP9fT4kmy9hYP1ZRRRSGE3RRVIxGtwuePQ7OcxHN7m90Z+wPLjpVvreZtd ZbwEqwLdJr0lufPAyMJ7zTZmUmibmplrM0YNQvcAb4OzKtrvep+Ad27Hg+IcX+5o5NG4 2b7g== Received: by 10.66.75.168 with SMTP id d8mr239933paw.63.1345695358520; Wed, 22 Aug 2012 21:15:58 -0700 (PDT) Received: from lz-desktop.hz.ali.com ([182.92.247.2]) by mx.google.com with ESMTPS id ka4sm5089926pbc.61.2012.08.22.21.15.56 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 22 Aug 2012 21:15:58 -0700 (PDT) From: Zheng Liu To: linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: Lukas Czerner , Zheng Liu Subject: [PATCH 3/3] ext4: add tracepoint in punching hole Date: Thu, 23 Aug 2012 12:25:41 +0800 Message-Id: <1345695941-15053-4-git-send-email-wenqing.lz@taobao.com> X-Mailer: git-send-email 1.7.12.rc2.18.g61b472e In-Reply-To: <1345695941-15053-1-git-send-email-wenqing.lz@taobao.com> References: <1345695941-15053-1-git-send-email-wenqing.lz@taobao.com> Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org From: Zheng Liu This patch adds a tracepoint in ext4_punch_hole. CC: Lukas Czerner Signed-off-by: Zheng Liu --- fs/ext4/inode.c | 2 ++ include/trace/events/ext4.h | 25 +++++++++++++++++++++++++ 2 files changed, 27 insertions(+), 0 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index dde62e0..169eab3 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3495,6 +3495,8 @@ int ext4_punch_hole(struct file *file, loff_t offset, loff_t length) if (!S_ISREG(inode->i_mode)) return -EOPNOTSUPP; + trace_ext4_punch_hole(inode, offset, length); + if (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) return ext4_ind_punch_hole(file, offset, length); diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index 69d8a69..58bec84 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -1311,6 +1311,31 @@ TRACE_EVENT(ext4_fallocate_exit, __entry->ret) ); +TRACE_EVENT(ext4_punch_hole, + TP_PROTO(struct inode *inode, loff_t offset, loff_t len), + + TP_ARGS(inode, offset, len), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( loff_t, offset ) + __field( loff_t, len ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->offset = offset; + __entry->len = len; + ), + + TP_printk("dev %d,%d ino %lu offset %lld len %lld", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->offset, __entry->len) +); + TRACE_EVENT(ext4_unlink_enter, TP_PROTO(struct inode *parent, struct dentry *dentry),