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From: Eric Sandeen <sandeen@redhat.com>
To: ext4 development <linux-ext4@vger.kernel.org>
Subject: RFC: guard against more "dangerous" userspace options
Date: Tue, 11 Aug 2009 15:43:24 -0500	[thread overview]
Message-ID: <4A81D7EC.2060706@redhat.com> (raw)

I'll keep it short and sweet:

Can we add a consistent "--eatmydata" type of hurdle to jump over before
people are allowed to use either the so-far-less-tested tools and/or
options therein?

I'm thinking of, so far:

e4defrag
mkfs.ext4 -O meta_bg (?)
mkfs.ext4 -E lazy_itable_init=1
tune2fs -I <bigger>

without the --eatmydata option (feel free to edit for clarity) we could
get something like:

"The ____ option is experimental and/or incomplete, and should be used
only for testing at this point.  Please re-issue your command with
'--eatmydata' option to use this option."

Thoughts?

I'm nervous about ext4 coming into wider use and people finding some of
the bits which aren't -quite- ready for prime time yet, and winding up
with a disaster.

Thanks,

-Eric

             reply	other threads:[~2009-08-11 20:43 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-11 20:43 Eric Sandeen [this message]
2009-08-20  6:27 ` RFC: guard against more "dangerous" userspace options Aneesh Kumar K.V
2009-08-20 14:48   ` Eric Sandeen
2009-08-21  7:02     ` Aneesh Kumar K.V
2009-08-21 14:40       ` Eric Sandeen
2009-08-21 16:08       ` Andreas Dilger

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