diff options
| author | Ming Lei <ming.lei@redhat.com> | 2018-06-24 22:03:26 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-06-26 12:53:26 -0400 |
| commit | c84b023a4c1461498abf0eda54f60e2fd64a1ca2 (patch) | |
| tree | 67ebdb69f8d50cd93209e09945474f23e845280f /drivers/scsi/hosts.c | |
| parent | 2b33ab371e026cfcea4cbdf233c6b8776dde9ba8 (diff) | |
scsi: read host_busy via scsi_host_busy()
No functional change.
Just introduce scsi_host_busy() and replace the direct read of
scsi_host->host_busy with this new API.
Cc: Omar Sandoval <osandov@fb.com>,
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
Cc: James Bottomley <james.bottomley@hansenpartnership.com>,
Cc: Christoph Hellwig <hch@lst.de>,
Cc: Don Brace <don.brace@microsemi.com>
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Laurence Oberman <loberman@redhat.com>
Cc: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hosts.c')
| -rw-r--r-- | drivers/scsi/hosts.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 3771e59a9fae..ea4b0bb0c1cd 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -564,6 +564,16 @@ struct Scsi_Host *scsi_host_get(struct Scsi_Host *shost) EXPORT_SYMBOL(scsi_host_get); /** + * scsi_host_busy - Return the host busy counter + * @shost: Pointer to Scsi_Host to inc. + **/ +int scsi_host_busy(struct Scsi_Host *shost) +{ + return atomic_read(&shost->host_busy); +} +EXPORT_SYMBOL(scsi_host_busy); + +/** * scsi_host_put - dec a Scsi_Host ref count * @shost: Pointer to Scsi_Host to dec. **/ |