9 Nov
2021
9 Nov
'21
11:02 a.m.
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. :)