From patchwork Thu Jul 17 19:39:00 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Fasheh X-Patchwork-Id: 4578521 Return-Path: X-Original-To: patchwork-linux-btrfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 7F9F69F1D6 for ; Thu, 17 Jul 2014 19:40:51 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A33622018E for ; Thu, 17 Jul 2014 19:40:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B01D92017D for ; Thu, 17 Jul 2014 19:40:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753353AbaGQTk0 (ORCPT ); Thu, 17 Jul 2014 15:40:26 -0400 Received: from cantor2.suse.de ([195.135.220.15]:52277 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752950AbaGQTkZ (ORCPT ); Thu, 17 Jul 2014 15:40:25 -0400 Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id E35B2AC88; Thu, 17 Jul 2014 19:40:23 +0000 (UTC) From: Mark Fasheh To: linux-btrfs@vger.kernel.org Cc: Chris Mason , Josef Bacik , Mark Fasheh Subject: [PATCH 1/5] btrfs: add trace for qgroup accounting Date: Thu, 17 Jul 2014 12:39:00 -0700 Message-Id: <1405625944-4883-2-git-send-email-mfasheh@suse.de> X-Mailer: git-send-email 1.8.4.5 In-Reply-To: <1405625944-4883-1-git-send-email-mfasheh@suse.de> References: <1405625944-4883-1-git-send-email-mfasheh@suse.de> Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP We want this to debug qgroup changes on live systems. Signed-off-by: Mark Fasheh Reviewed-by: Josef Bacik --- fs/btrfs/qgroup.c | 3 +++ fs/btrfs/super.c | 1 + include/trace/events/btrfs.h | 56 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 60 insertions(+) diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index 98cb6b2..6a6dc62 100644 --- a/fs/btrfs/qgroup.c +++ b/fs/btrfs/qgroup.c @@ -1290,6 +1290,7 @@ int btrfs_qgroup_record_ref(struct btrfs_trans_handle *trans, oper->seq = atomic_inc_return(&fs_info->qgroup_op_seq); INIT_LIST_HEAD(&oper->elem.list); oper->elem.seq = 0; + trace_btrfs_qgroup_record_ref(oper); ret = insert_qgroup_oper(fs_info, oper); if (ret) { /* Shouldn't happen so have an assert for developers */ @@ -1911,6 +1912,8 @@ static int btrfs_qgroup_account(struct btrfs_trans_handle *trans, ASSERT(is_fstree(oper->ref_root)); + trace_btrfs_qgroup_account(oper); + switch (oper->type) { case BTRFS_QGROUP_OPER_ADD_EXCL: case BTRFS_QGROUP_OPER_SUB_EXCL: diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 8e16bca..38b8bd8 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -60,6 +60,7 @@ #include "backref.h" #include "tests/btrfs-tests.h" +#include "qgroup.h" #define CREATE_TRACE_POINTS #include diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h index 4ee4e30..b8774b3 100644 --- a/include/trace/events/btrfs.h +++ b/include/trace/events/btrfs.h @@ -23,6 +23,7 @@ struct map_lookup; struct extent_buffer; struct btrfs_work; struct __btrfs_workqueue; +struct btrfs_qgroup_operation; #define show_ref_type(type) \ __print_symbolic(type, \ @@ -1119,6 +1120,61 @@ DEFINE_EVENT(btrfs__workqueue_done, btrfs_workqueue_destroy, TP_ARGS(wq) ); +#define show_oper_type(type) \ + __print_symbolic(type, \ + { BTRFS_QGROUP_OPER_ADD_EXCL, "OPER_ADD_EXCL" }, \ + { BTRFS_QGROUP_OPER_ADD_SHARED, "OPER_ADD_SHARED" }, \ + { BTRFS_QGROUP_OPER_SUB_EXCL, "OPER_SUB_EXCL" }, \ + { BTRFS_QGROUP_OPER_SUB_SHARED, "OPER_SUB_SHARED" }) + +DECLARE_EVENT_CLASS(btrfs_qgroup_oper, + + TP_PROTO(struct btrfs_qgroup_operation *oper), + + TP_ARGS(oper), + + TP_STRUCT__entry( + __field( u64, ref_root ) + __field( u64, bytenr ) + __field( u64, num_bytes ) + __field( u64, seq ) + __field( int, type ) + __field( u64, elem_seq ) + ), + + TP_fast_assign( + __entry->ref_root = oper->ref_root; + __entry->bytenr = oper->bytenr, + __entry->num_bytes = oper->num_bytes; + __entry->seq = oper->seq; + __entry->type = oper->type; + __entry->elem_seq = oper->elem.seq; + ), + + TP_printk("ref_root = %llu, bytenr = %llu, num_bytes = %llu, " + "seq = %llu, elem.seq = %llu, type = %s", + (unsigned long long)__entry->ref_root, + (unsigned long long)__entry->bytenr, + (unsigned long long)__entry->num_bytes, + (unsigned long long)__entry->seq, + (unsigned long long)__entry->elem_seq, + show_oper_type(__entry->type)) +); + +DEFINE_EVENT(btrfs_qgroup_oper, btrfs_qgroup_account, + + TP_PROTO(struct btrfs_qgroup_operation *oper), + + TP_ARGS(oper) +); + +DEFINE_EVENT(btrfs_qgroup_oper, btrfs_qgroup_record_ref, + + TP_PROTO(struct btrfs_qgroup_operation *oper), + + TP_ARGS(oper) +); + #endif /* _TRACE_BTRFS_H */ /* This part must be outside protection */