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Date:   Fri, 08 Nov 2019 09:23:04 +0100
From:   walter harms <wharms@....de>
To:     Eric Biggers <ebiggers@...nel.org>
CC:     linux-man@...r.kernel.org, darrick.wong@...cle.com,
        dhowells@...hat.com, jaegeuk@...nel.org, linux-api@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
        linux-fscrypt@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        tytso@....edu, victorhsieh@...gle.com
Subject: Re: [man-pages RFC PATCH] statx.2: document STATX_ATTR_VERITY



Am 07.11.2019 23:02, schrieb Eric Biggers:
> From: Eric Biggers <ebiggers@...gle.com>
> 
> Document the verity attribute for statx().
> 
> Signed-off-by: Eric Biggers <ebiggers@...gle.com>
> ---
>  man2/statx.2 | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> RFC since the kernel patches are currently under review.
> The kernel patches can be found here:
> https://lkml.kernel.org/linux-fscrypt/20191029204141.145309-1-ebiggers@kernel.org/T/#u
> 
> diff --git a/man2/statx.2 b/man2/statx.2
> index d2f1b07b8..713bd1260 100644
> --- a/man2/statx.2
> +++ b/man2/statx.2
> @@ -461,6 +461,10 @@ See
>  .TP
>  .B STATX_ATTR_ENCRYPTED
>  A key is required for the file to be encrypted by the filesystem.
> +.TP
> +.B STATX_ATTR_VERITY
> +The file has fs-verity enabled.  It cannot be written to, and all reads from it
> +will be verified against a Merkle tree.

Using "Merkle tree" opens a can of worm and what will happen when the methode will change ?
Does it matter at all ? i would suggest "filesystem" here.

re,
 wh

>  .SH RETURN VALUE
>  On success, zero is returned.
>  On error, \-1 is returned, and

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