From: Christoph Hellwig hch@lst.de
The write_same and write_zeroes limits for SCSI are effectively the same, so the current code works just fine. But we plan to remove REQ_OP_WRITE_SAME support, so switch to querying the write zeroes limit for a zeroing WRITE SAME operation.
Link: https://lore.kernel.org/r/20220209082828.2629273-2-hch@lst.de Reviewed-by: Chaitanya Kulkarni kch@nvidia.com Signed-off-by: Christoph Hellwig hch@lst.de Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Long Li leo.lilong@huawei.com --- drivers/scsi/cxlflash/vlun.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/cxlflash/vlun.c b/drivers/scsi/cxlflash/vlun.c index f1406ac77b0d..ea0a08a1696a 100644 --- a/drivers/scsi/cxlflash/vlun.c +++ b/drivers/scsi/cxlflash/vlun.c @@ -430,8 +430,8 @@ static int write_same16(struct scsi_device *sdev, struct device *dev = &cfg->dev->dev; const u32 s = ilog2(sdev->sector_size) - 9; const u32 to = sdev->request_queue->rq_timeout; - const u32 ws_limit = blk_queue_get_max_sectors(sdev->request_queue, - REQ_OP_WRITE_SAME) >> s; + const u32 ws_limit = + sdev->request_queue->limits.max_write_zeroes_sectors >> s;
cmd_buf = kzalloc(CMD_BUFSIZE, GFP_KERNEL); scsi_cmd = kzalloc(MAX_COMMAND_SIZE, GFP_KERNEL);