scsi: hpsa: check for tag collision

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Correct rare multipath issue where a device is deleted with an
outstanding cmd which results in a tag collision.

The cmd eventually completes. If a collision is detected wait until
the command slot is cleared.

Reviewed-by: Justin Lindley <justin.lindley@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Don Brace 2019-05-07 13:32:13 -05:00 • committed by Martin K. Petersen

parent 0119208885

commit 4770e68d16

2 changed files with 15 additions and 7 deletions

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21

drivers/scsi/hpsa.c

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1

drivers/scsi/hpsa.h

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