scsi_device_quiesce (9) Linux Manual Page
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 [at] hansenpartnership.com>
- Author.
Rob Landley <rob [at] landley.net>
- Author.