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Date: Wed, 24 Jul 2019 17:03:47 +0900
From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
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Cc: ksummit-discuss@lists.linuxfoundation.org,
	Amir Goldstein <amir73il@gmail.com>
Subject: Re: [Ksummit-discuss] [TECH TOPIC] Linux kernel SMB server (CIFSD)
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On (07/24/19 14:52), Sergey Senozhatsky wrote:
> On (05/30/19 01:59), Theodore Ts'o wrote:
> > From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
[..]
> To extend the topic with some discussion points:
> 
> - We are facing a rather familiar problem. Basically, SMB2 CHANGE_NOTIFY
>   [1] is something what fsnotify normally does, except that we can't use
>   it in cifsd kernel module. I see that NFS guys had [2] same issues some
>   time ago.
> 
>   So the question is - how to do fs notify style monitoring in a kernel
>   module (nfsd, cifsd)? Any chance the kernel can start exporting fsnotify
>   symbols?

I even looked at LSM hooks, because they do what we need - invoke
creat, open, truncate, chmod, chown, unlink, callbacks. But, first,
I do realize that LSM was not meant to be used as some sort of fsnotify
replacement, and, second, LSM symbols are not exported anyway :)

	-ss