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From: Greg KH <gregkh@linuxfoundation•org>
To: Xiaoming Ni <nixiaoming@huawei•com>
Cc: adobriyan@gmail•com, akpm@linux-foundation•org,
	anna.schumaker@netapp•com, arjan@linux•intel.com,
	bfields@fieldses•org, chuck.lever@oracle•com,
	davem@davemloft•net, jlayton@kernel•org, luto@kernel•org,
	mingo@kernel•org, Nadia.Derbey@bull•net,
	paulmck@linux•vnet.ibm.com, semen.protsenko@linaro•org,
	stable@kernel•org, stern@rowland•harvard.edu, tglx@linutronix•de,
	torvalds@linux-foundation•org, trond.myklebust@hammerspace•com,
	viresh.kumar@linaro•org, vvs@virtuozzo•com,
	alex.huangjianhui@huawei•com, dylix.dailei@huawei•com,
	linux-kernel@vger•kernel.org, linux-nfs@vger•kernel.org,
	netdev@vger•kernel.org
Subject: Re: [PATCH v3 0/3] kernel/notifier.c: avoid duplicate registration
Date: Wed, 10 Jul 2019 07:56:28 +0200	[thread overview]
Message-ID: <20190710055628.GB5778@kroah.com> (raw)
In-Reply-To: <1562728147-30251-1-git-send-email-nixiaoming@huawei.com>

On Wed, Jul 10, 2019 at 11:09:07AM +0800, Xiaoming Ni wrote:
> Registering the same notifier to a hook repeatedly can cause the hook
> list to form a ring or lose other members of the list.

Then don't do that :)

Is there any in-kernel users that do do this?  If so, please just fix
them.

thanks,

greg k-h

next prev parent reply	other threads:[~2019-07-10  5:56 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-10  3:09 [PATCH v3 0/3] kernel/notifier.c: avoid duplicate registration Xiaoming Ni
2019-07-10  5:49 ` Vasily Averin
2019-07-11  1:55   ` Nixiaoming
2019-07-11 13:57     ` Vasily Averin
2019-07-12 13:11       ` Xiaoming Ni
2019-07-12 14:07         ` gregkh
2019-07-14  2:45           ` Xiaoming Ni
2019-07-15  5:38             ` Vasily Averin
2019-07-16  2:00               ` Xiaoming Ni
2019-07-16 10:20                 ` Vasily Averin
2019-07-16 14:07                   ` Xiaoming Ni
2019-07-17 11:15                     ` Vasily Averin
2019-09-10  3:57                       ` Xiaoming Ni
2019-07-10  5:56 ` Greg KH [this message]
2019-07-11  1:32   ` Nixiaoming

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