Re: [Ext2-devel] Re: fsck out of memory

From: Randy.Dunlap (
Date: Wed Feb 12 2003 - 23:01:57 EST

>>>>>> "Stephen" == Stephen C Tweedie <> writes:
> Stephen> Hi, On Tue, 2003-02-11 at 13:11, Stephan van Hienen wrote:
> Stephen> I've no idea. Ben has some lb patches up at
> Stephen>
> Stephen> but there's nothing broken out against the latest lbd diffs.
> Ben's patches are against a very old version of the kernel (2.4.6-pre8) and
> require linking against libgcc to get 64-bit division.
> The main issue is 64-bit division. In the limited time I had I
> couldn't convince myself that I could rely on all divisors being less than
> 2^31 in the raid4/5 code. If you can convince yourself of that, then t's a
> straightforward but tedious task to make raid1, raid4 and raid5 LBD-safe.
> --

Is this in a speed-sensitive area?
If not, you could consider 64-bit software divide functions, such as found at,
which would only be used on 32-bit CPUs, of course.


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