From: Andreas Dilger <adilger@sun.com>
To: Eric Sandeen <sandeen@redhat.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
linux-ext4@vger.kernel.org
Subject: Re: [PATCH] ext4: Enable delalloc and mballoc by default.
Date: Wed, 24 Oct 2007 16:59:35 -0600 [thread overview]
Message-ID: <20071024225935.GI26078@webber.adilger.int> (raw)
In-Reply-To: <471FB5F8.1090805@redhat.com>
On Oct 24, 2007 16:15 -0500, Eric Sandeen wrote:
> Andreas Dilger wrote:
> > It is useful to be able to mount w/o extents/delalloc/mballoc for perf
> > testing and functional testing of the block-mapped file path in ext4.
> > Also, some users might want the ability to use features of ext4 w/o
> > the incompatibility of extents.
>
> Right, I understand the reason for noextents, nodelalloc, nomballoc.
> Above, I ask what is the point of having the *defaults* (extents,
> delalloc, mballoc) as mount options?
Partly for symmetry, and also to be able to override any "no*" options
that might have been specified previously (e.g. in some script that the
user doesn't directly control, but can pass additional options to).
Cheers, Andreas
--
Andreas Dilger
Sr. Software Engineer, Lustre Group
Sun Microsystems of Canada, Inc.
prev parent reply other threads:[~2007-10-24 22:59 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-24 16:47 Patches for review Aneesh Kumar K.V
2007-10-24 16:47 ` Aneesh Kumar K.V
2007-10-24 16:47 ` Aneesh Kumar K.V
2007-10-24 16:47 ` [PATCH] ext4: Change the default behaviour on error Aneesh Kumar K.V
2007-10-24 16:47 ` [PATCH] ext4: Fix mballoc BUG when running compilebench Aneesh Kumar K.V
2007-10-24 16:47 ` [PATCH] ext4: Enable delalloc and mballoc by default Aneesh Kumar K.V
2007-10-24 16:47 ` [PATCH] ext4: Show mballoc and delalloc options Aneesh Kumar K.V
2007-10-24 16:47 ` [PATCH] ext4: Fix ext4_show_options to show the correct mount options Aneesh Kumar K.V
2007-10-24 17:55 ` Eric Sandeen
2007-10-24 18:18 ` Aneesh Kumar K.V
2007-10-24 18:25 ` Eric Sandeen
2007-10-24 17:24 ` [PATCH] ext4: Show mballoc and delalloc options Eric Sandeen
2007-10-24 17:22 ` [PATCH] ext4: Enable delalloc and mballoc by default Eric Sandeen
2007-10-24 17:30 ` Aneesh Kumar K.V
2007-10-24 19:15 ` Mingming Cao
2007-10-24 21:06 ` Andreas Dilger
2007-10-24 21:15 ` Eric Sandeen
2007-10-24 22:59 ` Andreas Dilger [this message]
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