centos man page for scsi_internal_device_unblock

SCSI_INTERNAL_DEVICE(9) 					  SCSI mid layer					   SCSI_INTERNAL_DEVICE(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.

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

       Rob Landley <rob@landley.net>
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   SCSI_INTERNAL_DEVICE(9)