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scsi: core: fix scsi_host_queue_ready 

328728630d ("scsi: avoid to hold host-wide counter of host_busy for
scsi_mq") adds one extra check on scsi_host_busy(shost) in
scsi_host_queue_ready(), which is wrong and not necessary, can causes
booting stall on LSI53c895A.

So remove the check.

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>
Cc: Guenter Roeck <linux@roeck-us.net>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Fixes: 328728630d ("scsi: avoid to hold host-wide counter of host_busy for scsi_mq")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Ming Lei 2018-06-30 09:27:24 +08:00 committed by Martin K. Petersen
parent 624fa7790f
commit 265d59aacb
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/scsi_lib.c
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@ -1611,7 +1611,7 @@ static inline int scsi_host_queue_ready(struct request_queue *q,
else else
busy = 0; busy = 0;
if (atomic_read(&shost->host_blocked) > 0) { if (atomic_read(&shost->host_blocked) > 0) {
if (busy || scsi_host_busy(shost)) if (busy)
goto starved; goto starved;
/* /*