block: fix up io_poll documentation
/sys/block/<dev>/queue/io_poll is a boolean. Fix the docs. Signed-off-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com>
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@ -54,9 +54,9 @@ This is the hardware sector size of the device, in bytes.
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io_poll (RW)
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------------
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When read, this file shows the total number of block IO polls and how
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many returned success. Writing '0' to this file will disable polling
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for this device. Writing any non-zero value will enable this feature.
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When read, this file shows whether polling is enabled (1) or disabled
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(0). Writing '0' to this file will disable polling for this device.
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Writing any non-zero value will enable this feature.
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io_poll_delay (RW)
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------------------
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