linux-kernel - Re: [PATCH] writeback: skip new or to-be-freed inodes

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Message-ID: <4A2CB7AE.6080909@gmail.com>
Date:	Mon, 08 Jun 2009 10:03:10 +0300
From:	Artem Bityutskiy <dedekind1@...il.com>
To:	Wu Fengguang <fengguang.wu@...el.com>
CC:	Jan Kara <jack@...e.cz>, Eric Sandeen <sandeen@...deen.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Masayoshi MIZUMA <m.mizuma@...fujitsu.com>,
	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
	"viro@...iv.linux.org.uk" <viro@...iv.linux.org.uk>,
	Nick Piggin <npiggin@...e.de>, Jeff Layton <jlayton@...hat.com>
Subject: Re: [PATCH] writeback: skip new or to-be-freed inodes

Wu Fengguang wrote:
> The above race and warning didn't turn up because writeback_inodes() holds
> the s_umount lock, so generic_forget_inode() finds MS_ACTIVE and returns
> early. But we are not sure the UBIFS calls and future callers will guarantee
> that. So skip I_WILL_FREE inodes for the sake of safety.

The inode states are a bit vague for me, but vs. UBIFS - feel
free to ask questions.

-- 
Best Regards,
Artem Bityutskiy (Артём Битюцкий)
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