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67fc49433f
In cases where all issued ZIOs must succeed, and we can't do anything clever about the errors, we should just explicitly set ZIO_FLAG_TRYHARD and let OS to do all the reasonable retries. In other cases, where retries can be different from the original, for example, some ZIOs are allowed to fail due to redundancy, or we can disable aggregation on retrial to get at least some of the data, we can do first pass without TRYHARD, and only if needed retry with ZIO_FLAG_IO_RETRY (which implies TRYHARD semantics). Reviewed-by: Rob Norris <robn@despairlabs.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com> Closes #17877 |
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