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From: Chris Ball <cjb@laptop.org>
To: Theodore Ts'o <tytso@mit.edu>
Cc: "Stephen Warren" <swarren@wwwdotorg.org>,
	"Lukáš Czerner" <lczerner@redhat.com>,
	linux-ext4@vger.kernel.org, "Stephen Warren" <swarren@nvidia.com>
Subject: Re: [PATCH] mke2fs: restore verbose message for BLKDISCARD
Date: Fri, 08 Mar 2013 14:08:10 -0500	[thread overview]
Message-ID: <87vc91zp45.fsf@octavius.laptop.org> (raw)
In-Reply-To: <20130308190019.GB12008@thunk.org> (Theodore Ts'o's message of "Fri, 8 Mar 2013 14:00:19 -0500")

Hi,

On Fri, Mar 08 2013, Theodore Ts'o wrote:
> I hate to suggest this, but there's so many crappy devices out there
> that I'm wondering if we need to figure out some way of maintaining a
> black list of devices that don't handle discard properly.

Yes, we already do that in the MMC layer.  See e.g.:

http://git.kernel.org/cgit/linux/kernel/git/cjb/mmc.git/commit/?id=3550ccdb9d8d350e526b809bf3dd92b550a74fe1
("mmc: card: Skip secure erase on MoviNAND; causes unrecoverable corruption.")

Thanks,

- Chris.
-- 
Chris Ball   <cjb@laptop.org>   <http://printf.net/>
One Laptop Per Child

  parent reply	other threads:[~2013-03-08 19:08 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-05 20:25 [PATCH] mke2fs: restore verbose message for BLKDISCARD Stephen Warren
2013-03-06  7:13 ` Lukáš Czerner
2013-03-07 19:47   ` Stephen Warren
2013-03-08  7:23     ` Lukáš Czerner
2013-03-08 17:18       ` Stephen Warren
2013-03-08 19:00         ` Theodore Ts'o
2013-03-08 19:06           ` Theodore Ts'o
2013-03-08 19:08           ` Chris Ball [this message]
2013-03-08 20:03             ` Stephen Warren
2013-03-08 20:12               ` Chris Ball
2013-03-11 14:08           ` Eric Sandeen
2013-03-11 14:18             ` Lukáš Czerner

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