From: Mark Lord <kernel@teksavvy.com>
To: Greg Freemyer <greg.freemyer@gmail.com>
Cc: James Bottomley <James.Bottomley@suse.de>,
Jeff Moyer <jmoyer@redhat.com>,
Christoph Hellwig <hch@infradead.org>,
Matthew Wilcox <matthew@wil.cx>, Josef Bacik <josef@redhat.com>,
Lukas Czerner <lczerner@redhat.com>,
tytso@mit.edu, linux-ext4@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
sandeen@redhat.com
Subject: Re: [PATCH 1/2] fs: Do not dispatch FITRIM through separate super_operation
Date: Thu, 18 Nov 2010 16:42:14 -0500 [thread overview]
Message-ID: <4CE59DB6.9090304@teksavvy.com> (raw)
In-Reply-To: <AANLkTim=SkqBehcCvEME7YVHk3S0dLdmBS8ooRF+-BuW@mail.gmail.com>
On 10-11-18 03:04 PM, Greg Freemyer wrote:
>
> I'm a fan of wiper.sh, but afaik it still cannot address a
> multi-spindle LVM setup, Nor a MDraid setup. etc.
>
> That's because it bypasses the block stack and talks directly to the
> devices. Thus it doesn't get the benefit of all the logical to
> physical sector remapping handled via the block stack.
>
> Mark, please correct me if I'm wrong.
I'm a big fan of FITRIM, especially as it should work on MD devices
as well, which are problematic for wiper.sh today. I originally proposed
FITRIM (without the name, though) back when first implementing wiper.sh,
and I really believe we should extend FITRIM to btrfs and xfs.
hdparm is picking up support for FITRIM in the next release,
and wiper.sh will use it when it can in place of raw TRIMs.
This remains my own preferred method for TRIM: offline, that is. :)
Cheers
next prev parent reply other threads:[~2010-11-18 21:42 UTC|newest]
Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-18 7:36 [PATCH 1/2] fs: Do not dispatch FITRIM through separate super_operation Lukas Czerner
2010-11-18 7:36 ` [PATCH 2/2] ext4: Add EXT4_IOC_TRIM ioctl to handle batched discard Lukas Czerner
2010-11-19 16:19 ` Ted Ts'o
2010-11-19 16:26 ` Lukas Czerner
2010-11-20 1:37 ` Ted Ts'o
2010-11-18 13:06 ` [PATCH 1/2] fs: Do not dispatch FITRIM through separate super_operation Matthew Wilcox
2010-11-18 13:48 ` Josef Bacik
2010-11-18 14:19 ` Matthew Wilcox
2010-11-18 14:29 ` Christoph Hellwig
2010-11-18 17:19 ` James Bottomley
2010-11-18 17:22 ` Jeff Moyer
2010-11-18 17:41 ` James Bottomley
2010-11-18 20:04 ` Greg Freemyer
2010-11-18 20:04 ` Greg Freemyer
2010-11-18 21:42 ` Mark Lord [this message]
2010-11-18 21:44 ` Mark Lord
2010-11-18 21:50 ` James Bottomley
2010-11-18 22:07 ` Mark Lord
2010-11-19 1:33 ` Ted Ts'o
2010-11-19 3:44 ` Mark Lord
2010-11-19 3:44 ` Mark Lord
2010-11-19 3:44 ` Mark Lord
2010-11-19 13:58 ` Jeff Moyer
2010-11-18 23:52 ` Martin K. Petersen
2010-11-19 0:34 ` Mark Lord
2010-11-19 1:16 ` Greg Freemyer
2010-11-19 1:16 ` Greg Freemyer
2010-11-19 11:55 ` Christoph Hellwig
2010-11-19 14:01 ` Mark Lord
2010-11-19 14:06 ` Christoph Hellwig
2010-11-19 14:48 ` Mark Lord
2010-11-19 14:54 ` Christoph Hellwig
2010-11-19 15:24 ` Mark Lord
2010-11-19 15:34 ` Christoph Hellwig
2010-11-19 16:20 ` Greg Freemyer
2010-11-19 16:38 ` Christoph Hellwig
2010-11-19 18:06 ` Lukas Czerner
2010-11-19 18:10 ` Lukas Czerner
2010-11-19 18:14 ` Lukas Czerner
2010-11-19 19:29 ` Chris Mason
2010-11-19 1:49 ` Martin K. Petersen
2010-11-19 3:42 ` Mark Lord
2010-11-18 18:05 ` Jamie Lokier
2010-11-18 19:32 ` Markus Trippelsdorf
2010-11-18 21:45 ` Mark Lord
2010-11-18 21:50 ` Markus Trippelsdorf
2010-11-18 22:09 ` Mark Lord
2010-11-18 17:35 ` Lukas Czerner
2010-11-19 12:16 ` Steven Whitehouse
2010-11-19 13:53 ` Mark Lord
2010-11-19 14:02 ` Ted Ts'o
2010-11-19 14:10 ` Christoph Hellwig
2010-11-19 14:10 ` Christoph Hellwig
2010-11-19 14:10 ` Christoph Hellwig
2010-11-19 15:37 ` Ted Ts'o
2010-11-19 15:50 ` Christoph Hellwig
2010-11-19 15:50 ` Christoph Hellwig
2010-11-19 15:50 ` Christoph Hellwig
2010-11-19 16:16 ` Ted Ts'o
2010-11-19 14:50 ` Mark Lord
2010-11-19 14:50 ` Mark Lord
2010-11-19 14:50 ` Mark Lord
2010-11-19 15:35 ` Mark Lord
2010-11-19 15:35 ` Mark Lord
2010-11-19 15:35 ` Mark Lord
2010-11-19 15:44 ` Lukas Czerner
2010-11-19 16:30 ` Ted Ts'o
2010-11-19 22:49 ` Mark Lord
2010-11-19 22:49 ` Mark Lord
2010-11-19 22:49 ` Mark Lord
2010-11-25 2:48 ` Mark Lord
2010-11-25 2:48 ` Mark Lord
2010-11-25 2:48 ` Mark Lord
2010-11-25 4:23 ` Martin K. Petersen
2010-11-25 14:44 ` Mark Lord
2010-11-25 4:41 ` Greg Freemyer
2010-11-25 4:41 ` Greg Freemyer
2010-11-25 14:53 ` Mark Lord
2010-11-25 16:24 ` Greg Freemyer
2010-11-25 16:24 ` Greg Freemyer
2010-11-26 13:49 ` Mark Lord
2010-11-26 14:00 ` Lukas Czerner
2010-11-18 17:55 ` Chris Mason
2010-12-03 18:24 ` Ric Wheeler
2010-11-18 21:37 ` Mark Lord
2010-11-19 11:09 ` Christoph Hellwig
2010-11-19 13:54 ` Mark Lord
2010-11-19 14:40 ` Chris Mason
2010-11-19 14:53 ` Mark Lord
2010-11-19 14:57 ` Christoph Hellwig
2010-11-19 15:21 ` Mark Lord
2010-12-07 9:27 ` Christoph Hellwig
2010-12-07 16:52 ` Chris Mason
2011-06-02 4:52 ` Kyungmin Park
2011-06-02 8:14 ` Lukas Czerner
2011-06-03 2:06 ` Dave Chinner
2011-06-03 2:06 ` Dave Chinner
2011-06-03 4:25 ` Kyungmin Park
2011-06-03 4:25 ` Kyungmin Park
2010-11-19 15:30 ` Mark Lord
2010-11-21 19:07 ` Valdis.Kletnieks
2010-11-21 20:20 ` James Bottomley
2010-11-18 14:31 ` Josef Bacik
2010-11-18 14:36 ` Tao Ma
2010-11-19 15:41 ` Ted Ts'o
2010-11-19 15:50 ` Christoph Hellwig
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