From: Chao Yu <chao2.yu@samsung.com>
To: "'Jaegeuk Kim'" <jaegeuk@kernel.org>
Cc: "'Changman Lee'" <cm224.lee@samsung.com>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net
Subject: RE: [f2fs-dev] [PATCH 5/5 v4] f2fs: introduce a batched trim
Date: Fri, 06 Feb 2015 16:20:37 +0800 [thread overview]
Message-ID: <005001d041e5$e87089b0$b9519d10$@samsung.com> (raw)
In-Reply-To: <20150206061837.GA66378@jaegeuk-mac02.hsd1.ca.comcast.net>
Hi Jaegeuk,
> -----Original Message-----
> From: Jaegeuk Kim [mailto:jaegeuk@kernel.org]
> Sent: Friday, February 06, 2015 2:19 PM
> To: Chao Yu
> Cc: 'Changman Lee'; linux-fsdevel@vger.kernel.org; linux-kernel@vger.kernel.org;
> linux-f2fs-devel@lists.sourceforge.net
> Subject: Re: [f2fs-dev] [PATCH 5/5 v4] f2fs: introduce a batched trim
>
> Hi Chao,
>
> Something like this?
>
> Change log from v3:
> o align to section size
>
> This patch introduces a batched trimming feature, which submits split discard
> commands.
>
> This is to avoid long latency due to huge trim commands.
> If fstrim was triggered ranging from 0 to the end of device, we should lock
> all the checkpoint-related mutexes, resulting in very long latency.
>
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Looks good to me.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
next prev parent reply other threads:[~2015-02-06 8:21 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-27 23:31 [PATCH 1/5] f2fs: fix not to drop mount options when retrying fill_super Jaegeuk Kim
2015-01-27 23:31 ` [PATCH 2/5] f2fs: support norecovery mount option Jaegeuk Kim
2015-01-29 11:52 ` Chao Yu
2015-01-29 18:27 ` Jaegeuk Kim
2015-01-29 18:31 ` [f2fs-dev] [PATCH 2/5 v2] " Jaegeuk Kim
2015-01-30 5:11 ` Chao Yu
2015-01-30 5:10 ` [PATCH 2/5] " Chao Yu
2015-01-27 23:31 ` [PATCH 3/5] f2fs: avoid write_checkpoint if f2fs is mounted readonly Jaegeuk Kim
2015-01-29 11:55 ` Chao Yu
2015-01-27 23:31 ` [PATCH 4/5] f2fs: should fail mount when trying to recover data on read-only dev Jaegeuk Kim
2015-01-29 12:16 ` Chao Yu
2015-01-29 21:39 ` Jaegeuk Kim
2015-01-30 5:12 ` Chao Yu
2015-01-30 5:15 ` Chao Yu
2015-01-27 23:31 ` [PATCH 5/5] f2fs: introduce a batched trim Jaegeuk Kim
2015-01-29 12:38 ` Chao Yu
2015-01-29 21:41 ` Jaegeuk Kim
2015-01-30 5:13 ` Chao Yu
2015-02-02 23:29 ` [PATCH 5/5 v2] " Jaegeuk Kim
2015-02-03 2:48 ` [f2fs-dev] " Changman Lee
2015-02-03 20:10 ` [f2fs-dev] [PATCH 5/5 v3] " Jaegeuk Kim
2015-02-05 9:30 ` Chao Yu
2015-02-06 6:18 ` [f2fs-dev] [PATCH 5/5 v4] " Jaegeuk Kim
2015-02-06 8:20 ` Chao Yu [this message]
2015-02-07 15:57 ` Leon Romanovsky
2015-02-09 7:04 ` Jaegeuk Kim
2015-01-29 11:24 ` [PATCH 1/5] f2fs: fix not to drop mount options when retrying fill_super Chao Yu
2015-01-29 18:21 ` [PATCH 1/5 v2] " Jaegeuk Kim
2015-01-30 5:02 ` Chao Yu
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