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1b96f862ec
While the specification allows devices to either deallocate data or to actually write zeroes on any Write Zeroes command, many SSDs only do the sensible thing and deallocate data when the DEAC bit is specific. Set it when it is supported and the caller doesn't explicitly opt out of deallocation. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> |
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