Redirecting request

DISCUSSION MShetty 2 participants 2 messages Oct 28, 2002 SCSI

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MShetty

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2002-10-28 13:35 UTC #0 lore raw

Hi,

In my make_request function (registered with blk_queue_make_request) I want to redirect the current request to "sd". To achieve this is it sufficient to write :
bh->b_rdev = MKDEV(SCSI_DISK0_MAJOR, 0);

where bh is buffer_head

Thanks and Regards,
M Shetty

Jens Axboe

2002-10-28 16:24 UTC #1 lore raw

Quoted 8 lines · MShetty

Hi,
In my make_request function (registered with blk_queue_make_request) I want to redirect the current request to "sd". To achieve this is it sufficient to write :
bh->b_rdev = MKDEV(SCSI_DISK0_MAJOR, 0);
where bh is buffer_head

If b_rsector already points to the right offset off /dev/sda (not partition), then yes.

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Jens Axboe