From: Theodore Tso <tytso@mit.edu>
To: Eric Sandeen <sandeen@redhat.com>
Cc: ext4 development <linux-ext4@vger.kernel.org>
Subject: Re: [PATCH] mke2fs support for BLKDISCARD
Date: Sun, 15 Nov 2009 23:54:28 -0500 [thread overview]
Message-ID: <20091116045428.GA17961@mit.edu> (raw)
In-Reply-To: <4ACD0CDD.2070806@redhat.com>
On Wed, Oct 07, 2009 at 04:49:17PM -0500, Eric Sandeen wrote:
> Try calling the BLKDISCARD ioctl at mkfs time to pre-discard all blocks
> on an ssd, or a thinly-provisioned storage device.
>
> No real error checking; if it fails, it fails, and that's ok - it's
> just an optimization. Also, it cannot work in conjunction with
> the undo io manager, for obvious reasons.
>
> Optionally disabled with a "-K" (mnemonic: Keep) option.
>
> Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Added to e2fsprogs's maint branch, thanks.
- Ted
prev parent reply other threads:[~2009-11-16 4:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-07 21:49 [PATCH] mke2fs support for BLKDISCARD Eric Sandeen
2009-11-16 4:54 ` Theodore Tso [this message]
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