linux-kernel - Re: [PATCH block/for-linus] writeback: fix syncing of I_DIRTY

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Message-ID: <20150824193242.GE28944@mtj.duckdns.org>
Date:	Mon, 24 Aug 2015 15:32:42 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Jan Kara <jack@...e.cz>
Cc:	Dave Chinner <david@...morbit.com>, Eryu Guan <eguan@...hat.com>,
	Jens Axboe <axboe@...nel.dk>, linux-kernel@...r.kernel.org,
	xfs@....sgi.com, axboe@...com, Jan Kara <jack@...e.com>,
	linux-fsdevel@...r.kernel.org, kernel-team@...com
Subject: Re: [PATCH block/for-linus] writeback: fix syncing of I_DIRTY_TIME
 inodes

Hello, Jan.

On Mon, Aug 24, 2015 at 09:08:47PM +0200, Jan Kara wrote:
> Inode may contain writeback pages (but not dirty pages) without being on
> any of the dirty lists. That is correct. Josef Bacik had patches to create

Hmmm... Can you please expand on how / why that happens?  It's kinda
weird to require writeback to walk all inodes regardless of their
dirty states.

> a list to track inodes with pages under writeback but they clashed with
> your patch series and they didn't get rebased yet AFAIR.

Wouldn't it make more sense to simply put them on one of the existing
b_* lists?

Thanks.

-- 
tejun
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