From: Christoph Hellwig <hch@infradead.org>
To: Joel Becker <Joel.Becker@oracle.com>,
Andreas Dilger <adilger@sun.com>, Mark Fasheh <mfasheh@suse.com>,
Christoph Hellwig <hch@infradead.org>,
linux-fsdevel@vger.kernel.org, Andreas
Subject: Re: [RFC][PATCH 0/5] Fiemap, an extent mapping ioctl
Date: Thu, 29 May 2008 09:02:54 -0400 [thread overview]
Message-ID: <20080529130254.GB21299@infradead.org> (raw)
In-Reply-To: <20080529005134.GB12405@disturbed>
On Thu, May 29, 2008 at 10:51:34AM +1000, Dave Chinner wrote:
> XFS has XFS_IOC_FSGETXATTR which can return the number of extents
> on an inode. It's a total count, not a range count, so it's a bit
> different to FIECOUNT and as such does not require walking the
> extent list to retrieve (extent count is in the inode itself).
What use is there geeting the extent count for a range? I'd rather
do it only per-file like the xfs ioctl.
> It's still not that straight forward as you have to encode count,
> offset and length into a structure to pass into the ioctl. i.e.
> is it really that much simpler and cleaner than just adding a
> extra flag to FIEMAP?
Yes :)
next prev parent reply other threads:[~2008-05-29 13:02 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-25 0:01 [RFC][PATCH 0/5] Fiemap, an extent mapping ioctl Mark Fasheh
2008-05-25 19:42 ` Christoph Hellwig
2008-05-25 20:59 ` Brad Boyer
2008-05-26 10:59 ` Andreas Dilger
2008-05-26 18:04 ` Brad Boyer
2008-05-27 16:45 ` Christoph Hellwig
2008-05-27 21:10 ` Mark Fasheh
2008-05-27 13:48 ` Chris Mason
2008-05-27 16:21 ` Eric Sandeen
2008-05-27 16:47 ` Christoph Hellwig
2008-05-27 20:34 ` Joel Becker
2008-05-27 16:52 ` jim owens
2008-05-27 17:19 ` Chris Mason
2008-05-28 16:09 ` Andreas Dilger
2008-05-28 16:33 ` Chris Mason
2008-05-29 22:01 ` Andreas Dilger
2008-05-30 13:37 ` Chris Mason
2008-05-29 13:01 ` Christoph Hellwig
2008-05-29 20:17 ` Andreas Dilger
2008-05-27 18:56 ` Mark Fasheh
2008-05-27 20:31 ` Joel Becker
2008-05-27 20:49 ` Mark Fasheh
2008-05-28 5:14 ` Christoph Hellwig
2008-05-28 16:02 ` Andreas Dilger
2008-05-28 17:04 ` Joel Becker
2008-05-29 0:51 ` Dave Chinner
2008-05-29 13:02 ` Christoph Hellwig [this message]
2008-05-29 15:33 ` jim owens
2008-05-29 15:53 ` Jamie Lokier
2008-05-29 18:56 ` Joel Becker
2008-05-29 21:41 ` Andreas Dilger
2008-05-29 21:47 ` Joel Becker
2008-05-29 23:20 ` Andreas Dilger
2008-05-29 1:17 ` Andreas Dilger
2008-05-29 5:55 ` Christoph Hellwig
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