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scsi: cxlflash: Query write_zeroes limit for zeroing

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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>
This commit is contained in:
Christoph Hellwig 2022-02-09 09:28:22 +01:00 committed by Martin K. Petersen
parent 334ae6459a
commit 898cd34607
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/cxlflash/vlun.c
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@ -430,8 +430,8 @@ static int write_same16(struct scsi_device *sdev,
struct device *dev = &cfg->dev->dev; struct device *dev = &cfg->dev->dev;
const u32 s = ilog2(sdev->sector_size) - 9; const u32 s = ilog2(sdev->sector_size) - 9;
const u32 to = sdev->request_queue->rq_timeout; const u32 to = sdev->request_queue->rq_timeout;
const u32 ws_limit = blk_queue_get_max_sectors(sdev->request_queue, const u32 ws_limit =
REQ_OP_WRITE_SAME) >> s; sdev->request_queue->limits.max_write_zeroes_sectors >> s;
cmd_buf = kzalloc(CMD_BUFSIZE, GFP_KERNEL); cmd_buf = kzalloc(CMD_BUFSIZE, GFP_KERNEL);
scsi_cmd = kzalloc(MAX_COMMAND_SIZE, GFP_KERNEL); scsi_cmd = kzalloc(MAX_COMMAND_SIZE, GFP_KERNEL);