libata: relocate and fix post-command processing

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Some commands need post-processing after successful completion.  This
was done in ata_scsi_qc_complete() till now but this has the following
problems.

* Post-command processing gets executed when qc is completed from EH.
  Some qc's are retried from EH with zero err_mask and thus triggers
  unnecessary/incorrect post-command processing.

* Command post processing doesn't belong to SAT layer.

* Link-wide revalidation was scheduled where device revalidation
  suffices.

This patch moves post-command processing to success completion path of
ata_qc_complete() which is travelled iff the command is going to be
completed without passing through EH and updates post-command
processing such that device-specific action is used.  While at it,
restructure code a bit for readability.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

...

This commit is contained in:

Tejun Heo 2007-10-25 18:22:44 +09:00 • committed by Jeff Garzik

parent 2a397e82c7

commit 4dbfa39b6c

2 changed files with 20 additions and 23 deletions

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20

drivers/ata/libata-core.c

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23

drivers/ata/libata-scsi.c

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