linux-kernel - Re: [PATCH 3/5] fat: zero out seek range on _fat_get

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Message-ID: <87ob6ayghq.fsf@devron.myhome.or.jp>
Date:	Sun, 27 Oct 2013 22:45:37 +0900
From:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To:	Namjae Jeon <linkinjeon@...il.com>
Cc:	akpm@...ux-foundation.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, a.sahrawat@...sung.com,
	Namjae Jeon <namjae.jeon@...sung.com>
Subject: Re: [PATCH 3/5] fat: zero out seek range on _fat_get_block

OGAWA Hirofumi <hirofumi@...l.parknet.co.jp> writes:

> Namjae Jeon <linkinjeon@...il.com> writes:
>
>> +		last_block = (MSDOS_I(inode)->mmu_private + (blocksize - 1))
>> +			>> blocksize_bits;
>> +		disk_block = (MSDOS_I(inode)->i_disksize + (blocksize - 1))
>> +			>> blocksize_bits;
>> +		if (iblock >= last_block && iblock <= disk_block) {
>> +			MSDOS_I(inode)->mmu_private +=
>> +				*max_blocks << blocksize_bits;
>
> Hm, mmu_private is not increased by write_begin()?

Ah, ok. I understood what this is doing. Please ignore this comment.
-- 
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
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