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Date:   Tue, 10 Aug 2021 21:30:23 +0200
From:   "Michael Kerrisk (man-pages)" <mtk.manpages@...il.com>
To:     Christian Brauner <christian.brauner@...ntu.com>
Cc:     mtk.manpages@...il.com, Alejandro Colomar <alx.manpages@...il.com>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        linux-man <linux-man@...r.kernel.org>,
        Christoph Hellwig <hch@...radead.org>
Subject: Re: Questions re the new mount_setattr(2) manual page

On 8/10/21 4:11 PM, Christian Brauner wrote:
> On Tue, Aug 10, 2021 at 09:12:14AM +0200, Michael Kerrisk (man-pages) wrote:
>> Hi Christian,
>>
>> One more question...
>>
>>>>       The propagation field is used to specify the propagation typ
>>>>       of the mount or mount tree.  Mount propagation options are
>>>>       mutually exclusive; that is, the propagation values behave
>>>>       like an enum.  The supported mount propagation types are:
>>
>> The manual page text doesn't actually say it, but if the 'propagation'
>> field is 0, then this means leave the propagation type unchanged, 
>> right? This of course should be mentioned in the manual page.
> 
> Yes, if none of the documented values is set the propagation is unchanged.

Thanks for the confirmation.

Cheers,

Michael


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/

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