linux-ext4 - Re: [PATCH v2 20/23] xfs: add fs-verity support

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Date:   Wed, 5 Apr 2023 10:18:16 -0500
From:   Eric Sandeen <sandeen@...deen.net>
To:     "Darrick J. Wong" <djwong@...nel.org>,
        Andrey Albershteyn <aalbersh@...hat.com>
Cc:     dchinner@...hat.com, ebiggers@...nel.org, hch@...radead.org,
        linux-xfs@...r.kernel.org, fsverity@...ts.linux.dev,
        rpeterso@...hat.com, agruenba@...hat.com, xiang@...nel.org,
        chao@...nel.org, damien.lemoal@...nsource.wdc.com, jth@...nel.org,
        linux-erofs@...ts.ozlabs.org, linux-btrfs@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
        cluster-devel@...hat.com
Subject: Re: [PATCH v2 20/23] xfs: add fs-verity support

On 4/4/23 11:27 AM, Darrick J. Wong wrote:
> diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
> index d40de32362b1..b6e99ed3b187 100644
> --- a/fs/xfs/xfs_super.c
> +++ b/fs/xfs/xfs_super.c
> @@ -30,6 +30,7 @@
>  #include "xfs_filestream.h"
>  #include "xfs_quota.h"
>  #include "xfs_sysfs.h"
> +#include "xfs_verity.h"
>  #include "xfs_ondisk.h"
>  #include "xfs_rmap_item.h"
>  #include "xfs_refcount_item.h"
> @@ -1489,6 +1490,9 @@ xfs_fs_fill_super(
>  	sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ;
>  #endif
>  	sb->s_op = &xfs_super_operations;
> +#ifdef CONFIG_FS_VERITY
> +	sb->s_vop = &xfs_verity_ops;
> +#endif
>  

Hi Andrey - it might be nicer to just do:

        fsverity_set_ops(sb, &xfs_verity_ops);

here and use the (existing) helper to avoid the #ifdef.  (the #ifdef is handled by the helper)

(ext4 & btrfs could use this too ...)

Thanks!

-Eric