linux-kernel - Re: cifs and kthread_run / kernel

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Message-ID: <46100407.30403@us.ibm.com>
Date:	Sun, 01 Apr 2007 14:12:07 -0500
From:	"Steve French (smfltc)" <smfltc@...ibm.com>
To:	linux-cifs-client@...ts.samba.org,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: cifs and kthread_run / kernel_thread


>Hi all,
>
>I would like to use cifs inside linux-vserver guests. Discussion this with the 
>vserver people, we found that cifs is using the new kthread_run and the old 
>kernel_thread interface for starting kernel-threads. The old-style interface 
>renders cifs unusable inside a vserver-guest :-(
>
>My questions:
>
>i) Are there newer versions of cifs, where only kthread_run is used in all 
>places?
>
>  
>
No - IIRC the original patch (for the switch of cifs from kernel_thread 
to kthread) had a
minor implementation problem in handling the cifs_demultiplex thread, so 
this one small
area was left with the old style.

>iii) Is it difficult to switch to the new interface?
>  
>
No, I don't think so, but I have not investigated it.  We would be happy
to review and test a patch for this though.

>gs cifs # grep kthread_run *.[ch]
>cifsfs.c:       oplockThread = kthread_run(cifs_oplock_thread, 
>NULL, "cifsoplockd");
>cifsfs.c:       dnotifyThread = kthread_run(cifs_dnotify_thread, 
>NULL, "cifsdnotifyd");
>
>gs cifs # grep kernel_thread *.[ch]
>cifs.mod.c:     { 0x7e9ebb05, "kernel_thread" },
>connect.c:                      rc = (int)kernel_thread((void *)(void 
>*)cifs_demultiplex_thread, srvTcp,
>
>
>Thx,
>
>Wilhelm
>
>*********************************************
>  
>

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