From: Fengguang Wu <fengguang.wu@intel.com>
To: Jan Kara <jack@suse.cz>
Cc: linux-fsdevel@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] writeback: Do not sort b_io list only because of block device inode
Date: Tue, 9 Jul 2013 22:32:17 +0800 [thread overview]
Message-ID: <20130709143217.GA6944@localhost> (raw)
In-Reply-To: <20130708160602.GA14739@quack.suse.cz>
On Mon, Jul 08, 2013 at 06:06:02PM +0200, Jan Kara wrote:
> On Mon 24-06-13 10:07:49, Jan Kara wrote:
> > It is very likely that block device inode will be part of BDI dirty list
> > as well. However it doesn't make sence to sort inodes on the b_io list
> > just because of this inode (as it contains buffers all over the device
> > anyway). So save some CPU cycles which is valuable since we hold relatively
> > contented wb->list_lock.
> Ping? Fengguang, can you merge the patch please?
OK! It's a good optimization to have.
Thanks,
Fengguang
prev parent reply other threads:[~2013-07-09 14:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-24 8:07 [PATCH] writeback: Do not sort b_io list only because of block device inode Jan Kara
2013-07-08 16:06 ` Jan Kara
2013-07-09 14:32 ` Fengguang Wu [this message]
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