linux-kernel - Re: [PATCH] isofs: Fix lseek() to position beyond 4 GB

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Date:	Tue, 03 Aug 2010 14:23:57 -0700
From:	Joe Perches <joe@...ches.com>
To:	Jan Andres <jandres@....net>
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH] isofs: Fix lseek() to position beyond 4 GB

On Tue, 2010-08-03 at 23:18 +0200, Jan Andres wrote:
> isofs supports files larger than 4 GB by using multi-extent files.
> However an lseek() to a position beyond 4 GB in such a file will
> fail with EINVAL, because s_maxbytes in the isofs superblock is
> initialized to 2^32-1, and generic_file_llseek() checks against
> that value.
> --- linux-2.6.35-j7/fs/isofs/inode.c.orig	2010-08-02 00:11:14.000000000 +0200
> +++ linux-2.6.35-j7/fs/isofs/inode.c	2010-08-03 22:54:38.000000000 +0200
> +	s->s_maxbytes = 0x80000000000;

0x80000000000LL;


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