Commit 9b91fd34 authored Feb 12, 2018 by Bart Van Assche Committed by Martin K. Petersen Feb 13, 2018

scsi: core: Reduce number of scsi_test_unit_ready() retries



Make scsi_test_unit_ready() send at most as many TURs as specified in
the 'retries' argument instead of retries * (retries + 1) / 2.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

parent 98663067

drivers/scsi/scsi_lib.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2607,7 +2607,7 @@ scsi_test_unit_ready(struct scsi_device *sdev, int timeout, int retries,
		/* try to eat the UNIT_ATTENTION if there are enough retries */
		do {
		result = scsi_execute_req(sdev, cmd, DMA_NONE, NULL, 0, sshdr,
		timeout, retries, NULL);
		timeout, 1, NULL);
		if (sdev->removable && scsi_sense_valid(sshdr) &&
		sshdr->sense_key == UNIT_ATTENTION)
		sdev->changed = 1;

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