From: Theodore Tso <tytso@mit.edu>
To: Christoph Hellwig <hch@infradead.org>,
akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 7/8] inode-diet: Use a union for i_blocks and i_size, i_rdev and i_devices
Date: Mon, 3 Jul 2006 10:02:17 -0400 [thread overview]
Message-ID: <20060703140217.GA8099@thunk.org> (raw)
In-Reply-To: <20060703090642.GB8242@infradead.org>
On Mon, Jul 03, 2006 at 10:06:42AM +0100, Christoph Hellwig wrote:
> On Sun, Jul 02, 2006 at 08:53:40PM -0400, Theodore Ts'o wrote:
> > The i_blocks and i_size fields are only used for regular files. So we
> > move them into the union, along with i_rdev and i_devices, which are
> > only used by block or character devices.
>
> Can we please make this a named instead of unnamed union so everyone still
> using the fields will trip up? To reduce the impact a few more imajor/iminor
> conversions might be needed were direct references to i_rdev crept back in.
I did that originally but when I sent out my first version of patches
for review, other developers asked me to use an unnamed union ---
since otherwise the patch would be much, much larger (lots of changes
would need to be made) and that makes it much harder to merge into
either Andrew's or Linus's tree.
What do other people think? I can go either way on this one.
- Ted
next prev parent reply other threads:[~2006-07-03 14:02 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-03 0:53 [patch 0/8] Inode slimming patches, part 1 Theodore Ts'o
2006-07-03 0:53 ` [patch 1/8] inode_diet: Replace inode.u.generic_ip with inode.i_private Theodore Ts'o
2006-07-03 0:53 ` [patch 2/8] inode-diet: Move i_pipe into a union Theodore Ts'o
2006-07-03 0:53 ` [patch 3/8] inode-diet: Move i_bdev " Theodore Ts'o
2006-07-03 0:53 ` [patch 4/8] inode-diet: Move i_cdev " Theodore Ts'o
2006-07-03 0:53 ` [patch 5/8] inode-diet: Eliminate i_blksize and use a per-superblock default Theodore Ts'o
2006-07-03 0:53 ` [patch 6/8] inode-diet: Move i_cindex from struct inode to struct file Theodore Ts'o
2006-07-03 9:05 ` Christoph Hellwig
2006-07-03 14:05 ` Theodore Tso
2006-07-03 0:53 ` [patch 7/8] inode-diet: Use a union for i_blocks and i_size, i_rdev and i_devices Theodore Ts'o
2006-07-03 8:27 ` Andrew Morton
2006-07-03 14:35 ` Hugh Dickins
2006-07-03 9:06 ` Christoph Hellwig
2006-07-03 14:02 ` Theodore Tso [this message]
2006-07-03 14:42 ` Jan Engelhardt
2006-07-03 15:18 ` H. Peter Anvin
2006-07-03 0:53 ` [patch 8/8] inode-diet: Fix size of i_blkbits, i_version, and i_dnotify_mask Theodore Ts'o
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