linux-kernel - Re: [PATCH] xfs: sysfs: use default_groups in kobj

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Date:   Mon, 3 Jan 2022 11:13:21 -0800
From:   "Darrick J. Wong" <djwong@...nel.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, linux-xfs@...r.kernel.org
Subject: Re: [PATCH] xfs: sysfs: use default_groups in kobj_type

On Tue, Dec 28, 2021 at 03:46:41PM +0100, Greg Kroah-Hartman wrote:
> There are currently 2 ways to create a set of sysfs files for a
> kobj_type, through the default_attrs field, and the default_groups
> field.  Move the xfs sysfs code to use default_groups field which has
> been the preferred way since aa30f47cf666 ("kobject: Add support for
> default attribute groups to kobj_type") so that we can soon get rid of
> the obsolete default_attrs field.
> 
> Cc: "Darrick J. Wong" <djwong@...nel.org>
> Cc: linux-xfs@...r.kernel.org
> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

Looks good to me.  Shall I take this through the xfs tree?

Reviewed-by: Darrick J. Wong <djwong@...nel.org>

--D

> ---
>  fs/xfs/xfs_error.c |  3 ++-
>  fs/xfs/xfs_sysfs.c | 16 ++++++++++------
>  2 files changed, 12 insertions(+), 7 deletions(-)
> 
> diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
> index 81c445e9489b..749fd18c4f32 100644
> --- a/fs/xfs/xfs_error.c
> +++ b/fs/xfs/xfs_error.c
> @@ -213,11 +213,12 @@ static struct attribute *xfs_errortag_attrs[] = {
>  	XFS_ERRORTAG_ATTR_LIST(ag_resv_fail),
>  	NULL,
>  };
> +ATTRIBUTE_GROUPS(xfs_errortag);
>  
>  static struct kobj_type xfs_errortag_ktype = {
>  	.release = xfs_sysfs_release,
>  	.sysfs_ops = &xfs_errortag_sysfs_ops,
> -	.default_attrs = xfs_errortag_attrs,
> +	.default_groups = xfs_errortag_groups,
>  };
>  
>  int
> diff --git a/fs/xfs/xfs_sysfs.c b/fs/xfs/xfs_sysfs.c
> index 8608f804388f..574b80c29fe1 100644
> --- a/fs/xfs/xfs_sysfs.c
> +++ b/fs/xfs/xfs_sysfs.c
> @@ -67,11 +67,12 @@ static const struct sysfs_ops xfs_sysfs_ops = {
>  static struct attribute *xfs_mp_attrs[] = {
>  	NULL,
>  };
> +ATTRIBUTE_GROUPS(xfs_mp);
>  
>  struct kobj_type xfs_mp_ktype = {
>  	.release = xfs_sysfs_release,
>  	.sysfs_ops = &xfs_sysfs_ops,
> -	.default_attrs = xfs_mp_attrs,
> +	.default_groups = xfs_mp_groups,
>  };
>  
>  #ifdef DEBUG
> @@ -239,11 +240,12 @@ static struct attribute *xfs_dbg_attrs[] = {
>  #endif
>  	NULL,
>  };
> +ATTRIBUTE_GROUPS(xfs_dbg);
>  
>  struct kobj_type xfs_dbg_ktype = {
>  	.release = xfs_sysfs_release,
>  	.sysfs_ops = &xfs_sysfs_ops,
> -	.default_attrs = xfs_dbg_attrs,
> +	.default_groups = xfs_dbg_groups,
>  };
>  
>  #endif /* DEBUG */
> @@ -296,11 +298,12 @@ static struct attribute *xfs_stats_attrs[] = {
>  	ATTR_LIST(stats_clear),
>  	NULL,
>  };
> +ATTRIBUTE_GROUPS(xfs_stats);
>  
>  struct kobj_type xfs_stats_ktype = {
>  	.release = xfs_sysfs_release,
>  	.sysfs_ops = &xfs_sysfs_ops,
> -	.default_attrs = xfs_stats_attrs,
> +	.default_groups = xfs_stats_groups,
>  };
>  
>  /* xlog */
> @@ -381,11 +384,12 @@ static struct attribute *xfs_log_attrs[] = {
>  	ATTR_LIST(write_grant_head),
>  	NULL,
>  };
> +ATTRIBUTE_GROUPS(xfs_log);
>  
>  struct kobj_type xfs_log_ktype = {
>  	.release = xfs_sysfs_release,
>  	.sysfs_ops = &xfs_sysfs_ops,
> -	.default_attrs = xfs_log_attrs,
> +	.default_groups = xfs_log_groups,
>  };
>  
>  /*
> @@ -534,12 +538,12 @@ static struct attribute *xfs_error_attrs[] = {
>  	ATTR_LIST(retry_timeout_seconds),
>  	NULL,
>  };
> -
> +ATTRIBUTE_GROUPS(xfs_error);
>  
>  static struct kobj_type xfs_error_cfg_ktype = {
>  	.release = xfs_sysfs_release,
>  	.sysfs_ops = &xfs_sysfs_ops,
> -	.default_attrs = xfs_error_attrs,
> +	.default_groups = xfs_error_groups,
>  };
>  
>  static struct kobj_type xfs_error_ktype = {
> -- 
> 2.34.1
>