[PATCH] reiserfs: fix savelinks on bigendian arches

[PATCH] reiserfs: fix savelinks on bigendian arches

From: Oleg Drokin <green@namesys.com>

This small patch fixes a savelinks problem on bigendian platforms, where
savelinks were not working at all because of incorrect cpu->disk endianness
conversion.

Savelinks are used on reiserfs to remember "truncate" and "unlink" events
so that if crash happens in the middle of truncate/unlink, we do not endup
with lost or half truncated files.