scsi_device_quiesce man page on Scientific

scsi_device_quiesce man page on Scientific

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SCSI_DEVICE_QUIESCE(9)		SCSI mid layer		SCSI_DEVICE_QUIESCE(9)

NAME
       scsi_device_quiesce - Block user issued commands.

SYNOPSIS
       int scsi_device_quiesce(struct scsi_device * sdev);

ARGUMENTS
       sdev
	   scsi device to quiesce.

DESCRIPTION
       This works by trying to transition to the SDEV_QUIESCE state (which
       must be a legal transition). When the device is in this state, only
       special requests will be accepted, all others will be deferred. Since
       special requests may also be requeued requests, a successful return
       doesn´t guarantee the device will be totally quiescent.

       Must be called with user context, may sleep.

       Returns zero if unsuccessful or an error if not.

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

       Rob Landley <rob@landley.net>
	   Author.

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

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