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From: Avi Kivity <avi@argo.co.il>
To: Nathan Scott <nathans@sgi.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>,
	Jan Engelhardt <jengelh@linux01.gwdg.de>,
	linux-kernel@vger.kernel.org
Subject: Re: [RFC]  Slimming down struct inode
Date: Tue, 13 Jun 2006 17:00:59 +0300	[thread overview]
Message-ID: <448EC51B.6040404@argo.co.il> (raw)
In-Reply-To: <20060613143230.A867599@wobbly.melbourne.sgi.com>

Nathan Scott wrote:
>
> Such a change would would indeed break XFS, in exactly the way you
> suggest Jan - the realtime subvolume does typically use a different
> blocksize from the data subvolume (the realtime extent size is used,
> and this can be set per-inode too), and there would now be no way to
> distinguish this preferred IO size difference.
>

It can be made into an inode operation:

    if (inode->i_ops->getblksize)
         return inode->i_ops->getblksize(inode);
    else
         return inode->i_sb->s_blksize;

Trading some efficiency for space.

-- 
error compiling committee.c: too many arguments to function


  reply	other threads:[~2006-06-13 14:01 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-06-09 23:50 [RFC] Slimming down struct inode Theodore Ts'o
2006-06-10  0:24 ` Bernd Eckenfels
2006-06-10  1:27 ` Al Viro
2006-06-10  1:56   ` Theodore Tso
2006-06-10  6:24     ` Stefan Richter
2006-06-10 10:48 ` Jan Engelhardt
2006-06-10 15:04   ` Jeff Garzik
2006-06-13  4:35     ` Nathan Scott
2006-06-13  4:32   ` Nathan Scott
2006-06-13 14:00     ` Avi Kivity [this message]
2006-06-13 17:44       ` Theodore Tso
2006-06-13 18:08         ` Avi Kivity
2006-06-13 20:10           ` Jan Engelhardt
2006-06-13 20:25             ` Avi Kivity
2006-06-13 22:41       ` Nathan Scott
2006-06-14 10:29         ` Nikita Danilov
2006-06-14 21:50           ` Nathan Scott
2006-06-15  5:49             ` Theodore Tso
2006-06-15  7:01               ` Nathan Scott
2006-06-15  8:46                 ` Brian F. G. Bidulock
2006-06-15 10:20                   ` Nathan Scott
2006-06-14 23:27           ` Jan Engelhardt
2006-06-15 10:09             ` Nikita Danilov
2006-06-10 11:03 ` Tomasz Torcz
2006-06-10 15:06   ` Jeff Garzik
2006-06-15  0:16 ` Brian F. G. Bidulock
2006-06-15  4:43   ` Theodore Tso
2006-06-15  8:27     ` Brian F. G. Bidulock

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