linux-ext4 - Re: [PATCH] debugfs: allow do_write() to handle files over 4GB

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Message-ID: <20140726184041.GG6725@thunk.org>
Date:	Sat, 26 Jul 2014 14:40:41 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	"Darrick J. Wong" <darrick.wong@...cle.com>
Cc:	Andreas Dilger <adilger@...ger.ca>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH] debugfs: allow do_write() to handle files over 4GB

On Thu, Jul 24, 2014 at 05:04:31PM -0700, Darrick J. Wong wrote:
> On Thu, Jul 24, 2014 at 05:49:19PM -0600, Andreas Dilger wrote:
> > Fix debugfs do_write() to correctly set i_size_high if the source
> > file is larger than 4GB.  Otherwise, only the low 32 bits of the
> > size is stored in i_size.
> 
> You might also want to set large_file if needed.  I wrote a helper to set an
> inode's i_size* fields and turn on feature bits; it's been languishing at the
> back end of the patchbomb for a while:
> http://permalink.gmane.org/gmane.comp.file-systems.ext4/43861

I've pulled in a slightly modified version of Darrick's patch, which
takes care of this issue.

							- Ted
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