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07b103b4d6
WRITE SAME allows writing a block for a repeated number of times. Mostly, it can also be used to deallocate parts of the block device (the fstrim functionality uses this). We do not support that aspect yet. Instead, we will just stupidly repeat the pattern as many times as we are told. A future, smarter implementation could just punch a hole into the backend instead of filling it with zeros. Signed-off-by: Erik Schilling <erik.schilling@linaro.org> |
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