Messages in this thread | | | From | "Wang, Zhi A" <> | Subject | Re: [PATCH 1/3] i915/gvt: seperate tracked MMIO table from handlers.c | Date | Tue, 9 Nov 2021 11:02:28 +0000 |
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On 11/9/2021 12:58 PM, hch@lst.de wrote: > On Tue, Nov 09, 2021 at 10:51:27AM +0000, Wang, Zhi A wrote: >> Can you elaborate more about this? We need the hash query from the table >> ASAP when the hypervisor trapped a mmio access. It's a critical path and >> we tried different data structure in the kernel and the hash table gives >> the best performance. > Ok, I misunderstood the hashtable.h interface. hash_for_each_possible > actually does a hash lookup instead of an interation despite the rather > misleading name.
Yes. Maybe with a keyword "lookup" in the name of the interface would be better since it's widely used in the kernel. :)
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