From: Zhang Yi <yi.zh...@huawei.com>
When the device supports the Write Zeroes command and the zeroing mode
is set to SD_ZERO_WS16_UNMAP or SD_ZERO_WS10_UNMAP, this means that the
device supports unmap Write Zeroes, so set the corresponding
max_hw_write_zeroes_unmap_sectors to max_write_zeroes_sectors on the
device's queue limit.
Signed-off-by: Zhang Yi <yi.zh...@huawei.com>
---
drivers/scsi/sd.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 3f6e87705b62..877dc34e8f37 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1141,6 +1141,11 @@ static void sd_config_write_same(struct scsi_disk *sdkp,
out:
lim->max_write_zeroes_sectors =
sdkp->max_ws_blocks * (logical_block_size >> SECTOR_SHIFT);
+
+ if (sdkp->zeroing_mode == SD_ZERO_WS16_UNMAP ||
+ sdkp->zeroing_mode == SD_ZERO_WS10_UNMAP)
+ lim->max_hw_wzeroes_unmap_sectors =
+ lim->max_write_zeroes_sectors;
}
static blk_status_t sd_setup_flush_cmnd(struct scsi_cmnd *cmd)
--
2.46.1
