krbd and blk-mq max queue depth=128?

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Hi All,

 

Am I correct in thinking that in latest kernels, now that krbd is supported via blk-mq, the maximum queue depth is now 128 and cannot be adjusted

 

http://xo4t.mj.am/link/xo4t/jw0u7zr/1/VnVTVD2KMuL7gZiTD1iRXQ/aHR0cHM6Ly9naXRodWIuY29tL3RvcnZhbGRzL2xpbnV4L2Jsb2IvbWFzdGVyL2RyaXZlcnMvYmxvY2svcmJkLmM

3753:     rbd_dev->tag_set.queue_depth = BLKDEV_MAX_RQ;

 

blkdev.h

42:          #define BLKDEV_MAX_RQ   128

 

This potentially seems a bit low for some use cases if it can’t be adjusted.

 

Nick


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