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From: Ganesh Mahendran <opensource.ganesh@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Minchan Kim <minchan@kernel.org>, Nitin Gupta <ngupta@vflare.org>,
	Linux-MM <linux-mm@kvack.org>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mm/zsmalloc: add log for module load/unload
Date: Tue, 27 Jan 2015 10:07:53 +0800	[thread overview]
Message-ID: <CADAEsF-QuUwdOFhjg9aCLZYPhmuNY-CdXQLgv1V1LXUkcJ8ugg@mail.gmail.com> (raw)
In-Reply-To: <20150126151942.2dd88d5221423e7379b43a06@linux-foundation.org>

Hello, Andrew

2015-01-27 7:19 GMT+08:00 Andrew Morton <akpm@linux-foundation.org>:
> On Sat, 24 Jan 2015 21:48:41 +0800 Ganesh Mahendran <opensource.ganesh@gmail.com> wrote:
>
>> Sometimes, we want to know whether a module is loaded or unloaded
>> from the log.
>
> Why?  What's special about zsmalloc?
>
> Please provide much better justification than this.

When I debug with the zsmalloc module built in kernel.
After system boots up, I did not see:
/sys/kernel/debug/zsmalloc dir.

Although the reason for this is that I made a mistake. I
forgot to add debugfs entry in /etc/fstab.
But I think it is suitable to add information for a module load/unload.
Then we can get this by:
dmesg | grep zsmalloc.

Thanks.

WARNING: multiple messages have this Message-ID (diff)
From: Ganesh Mahendran <opensource.ganesh@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Minchan Kim <minchan@kernel.org>, Nitin Gupta <ngupta@vflare.org>,
	Linux-MM <linux-mm@kvack.org>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mm/zsmalloc: add log for module load/unload
Date: Tue, 27 Jan 2015 10:07:53 +0800	[thread overview]
Message-ID: <CADAEsF-QuUwdOFhjg9aCLZYPhmuNY-CdXQLgv1V1LXUkcJ8ugg@mail.gmail.com> (raw)
In-Reply-To: <20150126151942.2dd88d5221423e7379b43a06@linux-foundation.org>

Hello, Andrew

2015-01-27 7:19 GMT+08:00 Andrew Morton <akpm@linux-foundation.org>:
> On Sat, 24 Jan 2015 21:48:41 +0800 Ganesh Mahendran <opensource.ganesh@gmail.com> wrote:
>
>> Sometimes, we want to know whether a module is loaded or unloaded
>> from the log.
>
> Why?  What's special about zsmalloc?
>
> Please provide much better justification than this.

When I debug with the zsmalloc module built in kernel.
After system boots up, I did not see:
/sys/kernel/debug/zsmalloc dir.

Although the reason for this is that I made a mistake. I
forgot to add debugfs entry in /etc/fstab.
But I think it is suitable to add information for a module load/unload.
Then we can get this by:
dmesg | grep zsmalloc.

Thanks.

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  reply	other threads:[~2015-01-27  2:07 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-24 13:48 [PATCH] mm/zsmalloc: add log for module load/unload Ganesh Mahendran
2015-01-24 13:48 ` Ganesh Mahendran
2015-01-26 23:19 ` Andrew Morton
2015-01-26 23:19   ` Andrew Morton
2015-01-27  2:07   ` Ganesh Mahendran [this message]
2015-01-27  2:07     ` Ganesh Mahendran
2015-01-27  3:23     ` Minchan Kim
2015-01-27  3:23       ` Minchan Kim

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