linux-kernel - RE: [PATCH] exfat: reduce block requests when zeroing a cluster

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Message-ID: <HK2PR04MB38918AE14149045AE90A6400811A9@HK2PR04MB3891.apcprd04.prod.outlook.com>
Date:   Fri, 25 Mar 2022 07:22:54 +0000
From:   "Yuezhang.Mo@...y.com" <Yuezhang.Mo@...y.com>
To:     Christoph Hellwig <hch@...radead.org>
CC:     Namjae Jeon <linkinjeon@...nel.org>,
        "sj1557.seo@...sung.com" <sj1557.seo@...sung.com>,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Andy.Wu@...y.com" <Andy.Wu@...y.com>,
        "Wataru.Aoyama@...y.com" <Wataru.Aoyama@...y.com>
Subject: RE: [PATCH] exfat: reduce block requests when zeroing a cluster

Hi Christoph Hellwig,

Thank you for your comment.

> On Fri, Mar 25, 2022 at 03:00:55AM +0000, Yuezhang.Mo@...y.com wrote:
> > +#include <linux/blk_types.h>
> 
> blk_types.h is not a header for public use.  What do you want it for?

+	struct address_space *mapping = sb->s_bdev->bd_inode->i_mapping;

The type of 'sb->s_bdev' is 'struct block_device'.
I want to include the definition of 'struct block_device'('struct block_device' is defined in <linux/blk_types.h>).

Should I change to include <linux/blkdev.h>?

Best Regards,
Yuezhang Mo