linux-kernel - Re: [PATCH v2 5/5] fat: permit to return phy block number by fibmap in fallocated region

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Date:	Fri, 6 Dec 2013 23:39:24 +0900
From:	Namjae Jeon <linkinjeon@...il.com>
To:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
Cc:	akpm@...ux-foundation.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Namjae Jeon <namjae.jeon@...sung.com>,
	Amit Sahrawat <a.sahrawat@...sung.com>
Subject: Re: [PATCH v2 5/5] fat: permit to return phy block number by fibmap
 in fallocated region

2013/12/6, OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>:
> Namjae Jeon <linkinjeon@...il.com> writes:
>
>>> ->i_mutex doesn't work for swapfile.
>> Sorry, Actually, I don't understand why it is related with swapfile.
>> Could you elaborate more ?
>
> swapfile.c calls ->bmap to know physical address in swapfile. However,
> swapfile.c calls ->bmap under inode->i_mutex.
Okay, Thanks for explanation.

>
> Thanks.
> --
> OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
>
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