Re: [PATCH] block: respect virtual boundary mask in bvecs

[Johannes Thumshirn]

On 05/11/2018 11:55, Ming Lei wrote:
> On Mon, Nov 05, 2018 at 11:23:01AM +0100, Johannes Thumshirn wrote:
>> With drivers like iSer we are seeing a lot of bio splitting and smaller I/Os
>> being submitted to the driver.
>>
>> The root cause of this issue that the virtual boundary mask code does not take
>> into consideration that some of the memory segments in the SG list may have
>> come from a huge memory page that is being managed in the SG list as 4K
> 
> I guess you mean something like 64K PAGE_SIZE, instead of huge page.

No I mean like a 2M page from an upper layer.

-- 
Johannes Thumshirn                                        SUSE Labs
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