linux-kernel - Re: [PATCH 2/2] f2fs: use sbi->wr

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Date:	Mon, 18 Nov 2013 18:30:00 +0900
From:	Jaegeuk Kim <jaegeuk.kim@...sung.com>
To:	Gu Zheng <guz.fnst@...fujitsu.com>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net
Subject: Re: [PATCH 2/2] f2fs: use sbi->wr_mutex for write bios

Hi Gu,

2013-11-18 (월), 17:21 +0800, Gu Zheng:
> Hi Kim,
> On 11/18/2013 05:12 PM, Jaegeuk Kim wrote:
> 
> > This patch removes an unnecessary semaphore (i.e., sbi->bio_sem).
> > There is no reason to use the semaphore when f2fs submits read and write IOs.
> > Instead, let's use a write mutex and cover the sbi->bio[] by the lock.
> 
> My god, I just sent out an almost the same patch, do we have a telepathy?:)

Wow, it seems so. :)

-- 
Jaegeuk Kim
Samsung

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