From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
To: Gu Zheng <guz.fnst@cn.fujitsu.com>
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net
Subject: Re: [PATCH 2/2] f2fs: use sbi->wr_mutex for write bios
Date: Mon, 18 Nov 2013 18:30:00 +0900 [thread overview]
Message-ID: <1384767000.26319.18.camel@kjgkr> (raw)
In-Reply-To: <5289DC0C.30909@cn.fujitsu.com>
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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next prev parent reply other threads:[~2013-11-18 9:30 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-18 9:12 [PATCH 1/2] f2fs: clean up the do_submit_bio flow Jaegeuk Kim
2013-11-18 9:12 ` [PATCH 2/2] f2fs: use sbi->wr_mutex for write bios Jaegeuk Kim
2013-11-18 9:21 ` Gu Zheng
2013-11-18 9:30 ` Jaegeuk Kim [this message]
2013-11-19 0:39 ` [f2fs-dev] [PATCH 1/2] f2fs: clean up the do_submit_bio flow Chao Yu
2013-11-19 5:25 ` Chao Yu
2013-11-19 6:33 ` Jaegeuk Kim
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