https://github.com/torvalds/linux
Revision 10dab22664914505dcb804d9ad09cad6bc94d349 authored by Jamie Wellnitz on 12 September 2008, 01:39:36 UTC, committed by James Bottomley on 23 October 2008, 16:42:17 UTC
The current handling of NO_SENSE check condition is the same as
RECOVERED_ERROR, and assumes that in both cases, the I/O was fully
transferred.

We have seen cases of arrays returning with NO_SENSE (no error), but
the I/O was not completely transferred, thus residual set.  Thus,
rather than return good_bytes as the entire transfer, set good_bytes
to 0, so that the midlayer then applies the residual in calculating
the transfer, and for sd, will fail the I/O and fall into a retry
path.

Signed-off-by: Jamie Wellnitz <Jamie.Wellnitz@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
1 parent 6c5121b
History
Tip revision: 10dab22664914505dcb804d9ad09cad6bc94d349 authored by Jamie Wellnitz on 12 September 2008, 01:39:36 UTC
[SCSI] sd: Fix handling of NO_SENSE check condition
Tip revision: 10dab22
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