I've had these reiserfs patches in -mm for many months.  We've been
undecided because they trigger bugs in a couple of apps.  But those apps
are now fixed, so it's best to get these speedups in.


From: Oleg Drokin <green@namesys.com>

This patch allows insertion of more than one "indirect" block pointer into
the tree in reiserfs.  (with all the necessary balancing code changes).
The first user of that feature is hole-creation code that is now ~1000
times more cpu-efficient for the case of large holes.