[Ocfs2-devel] [PATCH] ocfs2: Limit default local alloc size within bitmap range.

[Joel Becker <Joel.Becker@oracle.com>]

On Wed, Jun 09, 2010 at 04:43:05PM +0800, Tao Ma wrote:
> In commit 6b82021b9e91cd689fdffadbcdb9a42597bbe764, we increase
> our local alloc size and calculate how much megabytes we can
> get according to group size and volume size.
> But we also need to check the maximum bits a local alloc block
> bitmap can have. With a bs=512, cs=32K, local volume with 160G,
> it calculate 96MB while the maximum local alloc size is only
> 76M. So the bitmap will overflow and corrupt the system truncate
> log file. See bug
> http://oss.oracle.com/bugzilla/show_bug.cgi?id=1262
> 
> Cc: Mark Fasheh <mfasheh@suse.com>
> Signed-off-by: Tao Ma <tao.ma@oracle.com>

	This patch is now in the 'fixes' branch of ocfs2.git.

Joel

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Joel Becker
Principal Software Developer
Oracle
E-mail: joel.becker at oracle.com
Phone: (650) 506-8127