From: Tao Ma <tao.ma@oracle.com>
To: ocfs2-devel@oss.oracle.com
Subject: [Ocfs2-devel] [PATCH 2/5] ocfs2: Remove ENTRY from masklog.
Date: Wed, 10 Nov 2010 22:19:40 +0800 [thread overview]
Message-ID: <4CDAA9FC.9070606@oracle.com> (raw)
In-Reply-To: <20101110094335.GC31158@mail.oracle.com>
Joel Becker wrote:
> On Wed, Nov 10, 2010 at 10:52:20AM +0800, Tao Ma wrote:
>
>> ENTRY is used to record the entry of a function.
>> But because it is added in so many functions, if we enable it,
>> the system logs get filled up quickly and cause too much I/O.
>> So actually no one can open it for a production system or even
>> for a test.
>>
>> So for mlog_entry_void, we just remove it.
>> for mlog_entry(...), we replace it with mlog(0,...).
>>
>
> I'm not sure I like this. One of the benefits of mlog_entry()
> was that you could turn on ML_xxx and not see these entry lines. By
> replacing it with mlog(0, ...), all of those entry lines will appear if
> the file is enabled.
> I realize that many of them will be replaced in later patches.
> I just hope they all are ;-)
>
Yeah, I will replace them with trace events later.
But you are right that the commit log should explain it. I will add some
more comments in the next round.
Regards,
Tao
next prev parent reply other threads:[~2010-11-10 14:19 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-10 2:51 [Ocfs2-devel] [PATCH 0/5] The first try of adding trace event to ocfs2 Tao Ma
2010-11-10 2:52 ` [Ocfs2-devel] [PATCH 1/5] ocfs2: Remove unused truncate function from alloc.c Tao Ma
2010-11-10 9:41 ` Joel Becker
2010-11-10 2:52 ` [Ocfs2-devel] [PATCH 2/5] ocfs2: Remove ENTRY from masklog Tao Ma
2010-11-10 9:43 ` Joel Becker
2010-11-10 14:19 ` Tao Ma [this message]
2010-11-10 2:52 ` [Ocfs2-devel] [PATCH 3/5] ocfs2: Remove EXIT " Tao Ma
2010-11-10 9:45 ` Joel Becker
2010-11-10 14:22 ` Tao Ma
2010-11-10 2:52 ` [Ocfs2-devel] [PATCH 4/5] ocfs2: Add ocfs2_trace.h Tao Ma
2010-11-10 9:48 ` Joel Becker
2010-11-10 14:33 ` Tao Ma
2010-11-10 22:19 ` Joel Becker
2010-11-10 2:52 ` [Ocfs2-devel] [PATCH 5/5] ocfs2: Remove mlog(0) from fs/ocfs2/alloc.c Tao Ma
2010-11-10 9:50 ` Joel Becker
2010-11-10 14:39 ` Tao Ma
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