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[dm-devel] Re: [PATCH 26/28] blk_end_request: changing ide-cd (take 3)



Bartlomiej Zolnierkiewicz wrote:

[PATCH] ide-cd: remove dead post_transform_command()

post_transform_command() call in cdrom_newpc_intr() has no effect because
it is done after the request has already been fully completed (rq->bio and
rq->data are always NULL).  It was verified to be true regardless whether
INQUIRY command is using DMA or PIO to transfer data (by using modified
Tejun Heo's test-shortsg.c utility and adding a few printk()-s to ide-cd).

This was uncovered thanks to the "blk_end_request: full I/O completion
handler (take 3)" patch series from Kiyoshi Ueda.

Cc: jens axboe oracle com
Cc: bharrosh panasas com
Cc: Kiyoshi Ueda <k-ueda ct jp nec com
Cc: Jun'ichi Nomura <j-nomura ce jp nec com>
Cc: Tejun Heo <htejun gmail com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier gmail com>

Acked-by: Sergei Shtylyov <sshtylyov ru mvista com>

MBR, Sergei


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