Re: [PATCH v10 03/11] scsi: sd: Translate data lifetime information

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On 22/02/2024 21:44, Bart Van Assche wrote:
+	sdkp->permanent_stream_count = desc - start;
+	if (sdkp->permanent_stream_count < 2) {
+		sd_printk(KERN_INFO, sdkp,
+			  "Unexpected: RSCS has been set and the permanent stream count is %u\n",
+			  sdkp->permanent_stream_count);
+		return;
+	}
+
+	sd_printk(KERN_INFO, sdkp, "permanent stream count = %d\n",
+		  sdkp->permanent_stream_count);

I have been testing a recent linux-next (which includes this change), and I now see this following kernel log just for writing to the bdev file, like:

# mnt/test-pwritev2 -d -l 512 -p 512 /dev/sda
wrote 512 bytes at pos 512 write_size=512
# [   22.339526] sd 0:0:0:0: [sda] permanent stream count = 5

Is that log really required, especially at info level?

That is a scsi_debug disk - I assume that the relevant io hint feature is now default enabled there.

Thanks,
John




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