About dd & make_request

DISCUSSION Subodh S 2 participants 2 messages Mar 7, 2003 SCSI

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Subodh S

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2003-03-07 13:54 UTC #0 lore raw

Hi,

When run

dd if=/dev/mydevice of=/dev/null count=10

why does my make_request function get called only five times ??

Thanks and Regards,
Subodh

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2003-03-07 13:59 UTC #1 lore raw

Quoted 7 lines · Subodh S

Hi,
When run
dd if=/dev/mydevice of=/dev/null count=10
why does my make_request function get called only five times ??

because you didn't change the block size, so you got 5 1024b (default) buffers thrown at you?

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Jens Axboe