linux-kernel - Re: [PATCH -next] mm/swapfile: remove pr_debug in get_swap

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Message-ID: <87leljrwnj.fsf@yhuang6-desk2.ccr.corp.intel.com>
Date:   Tue, 31 Jan 2023 15:27:44 +0800
From:   "Huang, Ying" <ying.huang@...el.com>
To:     Longlong Xia <xialonglong1@...wei.com>
Cc:     <akpm@...ux-foundation.org>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>, <chenwandun@...wei.com>,
        <wangkefeng.wang@...wei.com>, <sunnanyong@...wei.com>
Subject: Re: [PATCH -next] mm/swapfile: remove pr_debug in get_swap_pages()

Longlong Xia <xialonglong1@...wei.com> writes:

> It's known that get_swap_pages() may fail to find available space
> under some extreme case, but pr_debug() provides useless information.
> Let's remove it.
>
> Signed-off-by: Longlong Xia <xialonglong1@...wei.com>

Thanks!

Reviewed-by: "Huang, Ying" <ying.huang@...el.com>

> ---
>  mm/swapfile.c | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/mm/swapfile.c b/mm/swapfile.c
> index 6202a6668a63..99143875d6f0 100644
> --- a/mm/swapfile.c
> +++ b/mm/swapfile.c
> @@ -1098,8 +1098,6 @@ int get_swap_pages(int n_goal, swp_entry_t swp_entries[], int entry_size)
>  		spin_unlock(&si->lock);
>  		if (n_ret || size == SWAPFILE_CLUSTER)
>  			goto check_out;
> -		pr_debug("scan_swap_map of si %d failed to find offset\n",
> -			si->type);
>  		cond_resched();
>  
>  		spin_lock(&swap_avail_lock);