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[SCSI] core, classes, mpt2sas: have scsi_internal_device_unblock take new state

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This has scsi_internal_device_unblock/scsi_target_unblock take
the new state to set the devices as an argument instead of
always setting to running. The patch also converts users of these
functions.

This allows the FC and iSCSI class to transition devices from blocked
to transport-offline, so that when fast_io_fail/replacement_timeout
has fired we do not set the devices back to running. Instead, we
set them to SDEV_TRANSPORT_OFFLINE.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Mike Christie
2012-05-17 23:56:57 -05:00
committed by James Bottomley
parent 1b8d262061
commit 5d9fb5cc1b
7 changed files with 41 additions and 34 deletions
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4
drivers/scsi/scsi_priv.h
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@@ -2,6 +2,7 @@
#define _SCSI_PRIV_H
#include <linux/device.h>
#include <scsi/scsi_device.h>
struct request_queue;
struct request;
@@ -172,6 +173,7 @@ extern struct list_head scsi_sd_probe_domain;
#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */
extern int scsi_internal_device_block(struct scsi_device *sdev);
extern int scsi_internal_device_unblock(struct scsi_device *sdev);
extern int scsi_internal_device_unblock(struct scsi_device *sdev,
enum scsi_device_state new_state);
#endif /* _SCSI_PRIV_H */