Hi Ming On 08/13/2018 06:48 PM, Ming Lei wrote: > It is nothing to do with where the admin request is sent, so no any > difference wrt. this issue between with and without this patchset, > right? I'm afraid not. For example: A scsi host has 8 LUNs associated with it. Before this patch set, When we send out the admin command, the budget is _per_ LUN, 1/8 of the total tags. After this patch set, When we send out the admin command, the budget is equal to _one_ LUN, 1/8 of the total tags. However, the 1/8 above is different. Before the patch set, every LUN's admin command has 1/8 budget to use which is per LUN. After this patch set, all the 8 LUNs admin command has to share the 1/8 budget. Thanks Jianchao