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scsi: read host_busy via scsi_host_busy()

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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>
This commit is contained in:
Ming Lei 2018-06-24 22:03:26 +08:00 • committed by Martin K. Petersen
parent 2b33ab371e
commit c84b023a4c
10 changed files with 26 additions and 15 deletions
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4
drivers/scsi/libsas/sas_scsi_host.c
View file

@ -759,7 +759,7 @@ retry:
spin_unlock_irq(shost->host_lock);
SAS_DPRINTK("Enter %s busy: %d failed: %d\n",
__func__, atomic_read(&shost->host_busy), shost->host_failed);
__func__, scsi_host_busy(shost), shost->host_failed);
/*
* Deal with commands that still have SAS tasks (i.e. they didn't
* complete via the normal sas_task completion mechanism),
@ -801,7 +801,7 @@ out:
goto retry;
SAS_DPRINTK("--- Exit %s: busy: %d failed: %d tries: %d\n",
__func__, atomic_read(&shost->host_busy),
__func__, scsi_host_busy(shost),
shost->host_failed, tries);
}