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>
parent
86df7eb9
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