__scsi_internal_device_unblock man page on Scientific

__scsi_internal_device_unblock man page on Scientific

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__SCSI_INTERNAL_DEVI(9)		SCSI mid layer	       __SCSI_INTERNAL_DEVI(9)

NAME
       __scsi_internal_device_unblock - resume a device after a block request

SYNOPSIS
       int __scsi_internal_device_unblock(struct scsi_device * sdev,
					  enum scsi_device_state new_state);

ARGUMENTS
       sdev
	   device to resume

       new_state
	   state to set devices to after unblocking

DESCRIPTION
       Called by scsi lld´s or the midlayer to restart the device queue for
       the previously suspended scsi device. Called from interrupt or normal
       process context.

       Returns zero if successful or error if not.

NOTES
       This routine transitions the device to the SDEV_RUNNING state or to one
       of the offline states (which must be a legal transition) allowing the
       midlayer to goose the queue for this device. This routine assumes the
       host_lock is held upon entry.

AUTHORS
       James Bottomley <James.Bottomley@hansenpartnership.com>
	   Author.

       Rob Landley <rob@landley.net>
	   Author.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013	       __SCSI_INTERNAL_DEVI(9)

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