linux-kernel - Re: [PATCH v2] kthread: Export kthread functions

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Message-Id: <BC1DBE23-DF3E-49C1-BE59-A81EC98F5B1A@gmail.com>
Date:	Thu, 30 Jul 2015 11:48:17 +0800
From:	yalin wang <yalin.wang2010@...il.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	David Kershner <david.kershner@...sys.com>, tj@...nel.org,
	laijs@...fujitsu.com, nacc@...ux.vnet.ibm.com, nhorman@...hat.com,
	mingo@...hat.com, linux-kernel@...r.kernel.org,
	jes.sorensen@...hat.com, sparmaintainer@...sys.com
Subject: Re: [PATCH v2] kthread: Export kthread functions


> On Jul 29, 2015, at 18:34, Thomas Gleixner <tglx@...utronix.de> wrote:
> 
> On Tue, 28 Jul 2015, Andrew Morton wrote:
> 
>> On Tue, 28 Jul 2015 11:59:01 -0400 David Kershner <david.kershner@...sys.com> wrote:
>> 
>>> The s-Par visornic driver, currently in staging, processes a queue
>>> being serviced by the an s-Par service partition. We can get a message
>>> that something has happened with the Service Partition, when that
>>> happens, we must not access the channel until we get a message that the
>>> service partition is back again.
>>> 
>>> The visornic driver has a thread for processing the channel, when we
>>> get the message, we need to be able to park the thread and then resume
>>> it when the problem clears.
>>> 
>>> We can do this with kthread_park and unpark but they are not exported
>>> from the kernel, this patch exports the needed functions.
>>> 
>>> Signed-off-by: David Kershner <david.kershner@...sys.com>
>> 
>> Please accumulate the acked-by's and reviewed-by's in the changelog as
>> they are received.   I presently have
>> 
>> Acked-by: Ingo Molnar <mingo@...nel.org>
>> Acked-by: Neil Horman <nhorman@...driver.com>
>> Cc: Thomas Gleixner <tglx@...utronix.de>
>> Cc: Richard Weinberger <richard.weinberger@...il.com>
>> Cc: Tejun Heo <tj@...nel.org>
>> 
>> 
>> I'll scoot this into mainline probably this week to make life simpler
>> for the various trees.
> 
i am curious why not make some tiny functions to be inline ?
so that don’t need EXPORT_SYMOBLS , shrink the kernel size.
Thanks--
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