Christoph Hellwig wrote:
> On Tue, Oct 30, 2007 at 12:47:35AM -0500, Eric Sandeen wrote:
>> There was a patch floating around to "fix" it but it's not on-disk
>> compatible w/ x86 & friends, it just makes things consistent for arm. I
>> think packing some of these structures would take care of it, but this
>> problem could use some attention & testing I think, it's been floating
>> around a long time.
>
> Do you have a pointer to that patch? Once the unaliged fields are
> identified simply using get_unaligned on them should fix this issue.
>
http://www.spinics.net/lists/arm-kernel/msg18479.html
is the one I was thinking of, IIRC, but it just does the math a
different way so that it comes out right on ARM, and doesn't fix the
underlying problem. I think the end result is no crashes, but a
filesystem which is broken when used on another arch.
But the problem AFAIK is that the *on-disk* structures don't match when
compiled with one ARM abi or another, I think, so get_unaligned isn't
going to help here.
-Eric
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