linux-kernel - Re: [PATCH v2 2/2] exfat: add support FITRIM ioctl

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Date:   Wed, 17 Feb 2021 09:14:36 +0900
From:   Hyeongseok Kim <hyeongseok@...il.com>
To:     Chaitanya Kulkarni <Chaitanya.Kulkarni@....com>,
        "namjae.jeon@...sung.com" <namjae.jeon@...sung.com>,
        "sj1557.seo@...sung.com" <sj1557.seo@...sung.com>
Cc:     "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/2] exfat: add support FITRIM ioctl

On 2/17/21 8:56 AM, Chaitanya Kulkarni wrote:
> On 2/16/21 14:36, Hyeongseok Kim wrote:
>> +static int exfat_ioctl_fitrim(struct inode *inode, unsigned long arg)
>> +{
>> +	struct super_block *sb = inode->i_sb;
> Do you really need sb variable ? it is only used once if I'm not wrong.
I got it. You're right.
>> +	struct request_queue *q = bdev_get_queue(sb->s_bdev);
>> +	struct fstrim_range range;
>> +	int ret = 0;
>