tree 6cfa348aea76f39b658d3a36ab51807a4ac7bcf7
parent e244a0aeb6a599c19a7c802cda6e2d67c847b154
author Christoph Hellwig <hch@lst.de> 1255526699 -0400
committer Chris Mason <chris.mason@oracle.com> 1255530769 -0400

Btrfs: enable discard support

The discard support code in btrfs currently is guarded by ifdefs for
BIO_RW_DISCARD, which is never defines as it's the name of an enum
memeber.  Just remove the useless ifdefs to actually enable the code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>