linux-kernel - Re: [PATCH] f2fs: use new ioprio Macro to get ckpt thread ioprio data

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Message-ID: <b0c9f3dc-417a-4891-bdf0-25b849828e3b@kernel.org>
Date: Mon, 3 Jun 2024 14:39:53 +0800
From: Chao Yu <chao@...nel.org>
To: Zhiguo Niu <zhiguo.niu@...soc.com>, jaegeuk@...nel.org
Cc: linux-f2fs-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
 niuzhiguo84@...il.com, ke.wang@...soc.com
Subject: Re: [PATCH] f2fs: use new ioprio Macro to get ckpt thread ioprio data

On 2024/5/31 17:10, Zhiguo Niu wrote:
> Use new Macro IOPRIO_PRIO_LEVEL to get ckpt thread ioprio data(level),
> it is more accurate and consisten with the way setting ckpt thread
> ioprio(IOPRIO_PRIO_VALUE(class, data)).
> 
> Signed-off-by: Zhiguo Niu <zhiguo.niu@...soc.com>
> ---
>   fs/f2fs/sysfs.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
> index 72676c5..55d46da 100644
> --- a/fs/f2fs/sysfs.c
> +++ b/fs/f2fs/sysfs.c
> @@ -340,7 +340,7 @@ static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
>   	if (!strcmp(a->attr.name, "ckpt_thread_ioprio")) {
>   		struct ckpt_req_control *cprc = &sbi->cprc_info;
>   		int class = IOPRIO_PRIO_CLASS(cprc->ckpt_thread_ioprio);
> -		int data = IOPRIO_PRIO_DATA(cprc->ckpt_thread_ioprio);
> +		int data = IOPRIO_PRIO_LEVEL(cprc->ckpt_thread_ioprio);

So, can you please use 'level' to instead 'data' in f2fs_sbi_show() and
__sbi_store()?

Thanks,

>   
>   		if (class != IOPRIO_CLASS_RT && class != IOPRIO_CLASS_BE)
>   			return -EINVAL;