linux-kernel - Re: [PATCH v2 2/3] md: factor out a helper mddev_sync

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Message-ID: <20240118090814.00001d0d@linux.intel.com>
Date: Thu, 18 Jan 2024 09:08:14 +0100
From: Mariusz Tkaczyk <mariusz.tkaczyk@...ux.intel.com>
To: linan666@...weicloud.com
Cc: song@...nel.org, shli@...com, neilb@...e.com, zlliu@...e.com,
 linux-raid@...r.kernel.org, linux-kernel@...r.kernel.org,
 yukuai3@...wei.com, yi.zhang@...wei.com, houtao1@...wei.com,
 yangerkun@...wei.com
Subject: Re: [PATCH v2 2/3] md: factor out a helper mddev_sync_blockdev() to
 sync mddev

On Wed, 17 Jan 2024 17:37:06 +0800
linan666@...weicloud.com wrote:

> From: Li Nan <linan122@...wei.com>
> 
> There are no functional changes, prepare to sync mddev in
> array_state_store().
> 
> Signed-off-by: Li Nan <linan122@...wei.com>
> ---
>  drivers/md/md.c | 31 +++++++++++++++++++------------
>  1 file changed, 19 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/md/md.c b/drivers/md/md.c
> index 4bf821b89415..2c793992a604 100644
> --- a/drivers/md/md.c
> +++ b/drivers/md/md.c
> @@ -529,6 +529,23 @@ void mddev_resume(struct mddev *mddev)
>  }
>  EXPORT_SYMBOL_GPL(mddev_resume);
>  
> +/* sync bdev before setting device to readonly or stopping raid*/
> +static int mddev_sync_blockdev(struct mddev *mddev) {

Please add something about MD_CLOSING to the function name. Comment is good but
you need open function to get it. Something like:
mddev_set_closing_and_sync_blockdev() is more reader friendly.

Anyway, LGTM.
Acked-by: Mariusz Tkaczyk <mariusz.tkaczyk@...ux.intel.com>

Thanks,
Mariusz