Re: [PATCH 1/4] block: add a statistic table for io latency

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On 1/27/21 18:10, Christoph Hellwig wrote:
On Wed, Jan 27, 2021 at 03:59:27PM +0100, Guoqing Jiang wrote:
+config BLK_ADDITIONAL_DISKSTAT
+	bool "Block layer additional diskstat"
+	default n

n is the default default.  But more importantly I don't think having
this as a compile time option makes much sense sense.  No one is going
to recompile their kernel to get a few stats or to avoid the overhead
of these stats.


Ok, I will just use io_extra_stats node to dynamically control the stats, please let me know your thought about it.

Thanks,
Guoqin



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