linux-ext4 - Re: [PATCH-e2fsprogs] filefrag: accept positive ioctl return value

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Message-ID: <20090602124017.GS31943@mit.edu>
Date:	Tue, 2 Jun 2009 08:40:17 -0400
From:	Theodore Tso <tytso@....edu>
To:	Peng Tao <bergwolf@...il.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH-e2fsprogs] filefrag: accept positive ioctl return value

On Tue, Jun 02, 2009 at 08:12:41PM +0800, Peng Tao wrote:
> Some ioctl() returns non-negative value on success. filefrag_fiemap should
> treat positive ioctl() return values as success.
> This can be triggered by running filefrag on btrfs partitions.

What does the positive fiemap ioctl return mean?  It's not documented
in Documentation/filesystems/fiemap.txt.

						- Ted
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