tree 392d8d48c4e6676a552230135ad448d522007ece
parent 86df7eb921a009515285e7171363fa57dd2d7d31
author Christoph Hellwig <hch@lst.de> 1255526699 -0400
committer Chris Mason <chris.mason@oracle.com> 1255530769 -0400

Btrfs: add -o discard option

Enable discard by default is not a good idea given the the trim speed
of SSD prototypes we've seen, and the carecteristics for many high-end
arrays.  Turn of discards by default and require the -o discard option
to enable them on.

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