linux-kernel - The bug of iput() removal from flusher thread?

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Date:	Sat, 17 Nov 2012 17:42:30 +0900
From:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To:	Al Viro <viro@...iv.linux.org.uk>
Cc:	Jan Kara <jack@...e.cz>, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: The bug of iput() removal from flusher thread?

Hi,

In 169ebd90131b2ffca74bb2dbe7eeacd39fb83714 commit, writeback doesn't
__iget()/iput() anymore.

This means nobody moves the inode to lru list. I.e.

	new_inode()
	dirty_inode()
	iput_final()
		/* keep inode without adding lru */
	flush indoes
        /* clean inode is not on lru */

I noticed this situation in my FS though, I think the same bug is on all
FSes of linus tree too, after this commit.

Am I missing the something?

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