linux-ext4 - a suggestion for ext2_release

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Message-ID: <2014bcab0905142016k7626acd1m187afb71f9ecc440@mail.gmail.com>
Date:	Fri, 15 May 2009 12:16:43 +0900
From:	È«½Å shin hong <hongshin@...il.com>
To:	linux-ext4@...r.kernel.org
Subject: a suggestion for ext2_release_file()

Hi. I have a suggestion while I read ext2 code in recent Linux.

mark_files_ro() function in fs/super.c turns off FMODE_WRITE
of every file in a super block for the case of remounting.

However, an inode whose file's mode is FMODE_WRITE may hold
reservations. I think these reservations lost their chance to be discarded
since FMODE_WRITE is off.

So, I think ext2_release_file rather check
EXT2_I(inode)->i_block_alloc_info->rsv_window_node.

Could you check my suggestion is valid or not please?

Sincerely
Shin Hong
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