commit a175423c831ea582c06784d1e172d2ce1d79923a
author Chris Mason <chris.mason@oracle.com> Tue Feb 28 12:42:44 2012 -0500
committer Chris Mason <chris.mason@oracle.com> Sat Mar 03 07:42:35 2012 -0500
tree 742ca97279da69c981008620a3d2f0c48acdf6f4
parent d3b010640e5c59b98d3b11229ba4cc2838dc7cbf

Btrfs: fix casting error in scrub reada code

The reada code from scrub was casting down a u64 to
an unsigned long so it could insert it into a radix tree.

What it really wanted to do was cast down the result of a shift, instead
of casting down the u64.  The bug resulted in trying to insert our
reada struct into the wrong place, which caused soft lockups and other
problems.

Signed-off-by: Chris Mason <chris.mason@oracle.com>