Re: [PATCH v7 9/9] swiotlb: search the software IO TLB only if the device makes use of it

So it seems this code got merged without this question ever being answered. Sorry if it's a dumb one, but I don't think this functionality works as advertised... Thanks, jon Jonathan Corbet writes: > Petr Tesarik writes: > >> From: Petr Tesarik >> >> Skip

Re: [PATCH v7 9/9] swiotlb: search the software IO TLB only if the device makes use of it

Petr Tesarik writes: > From: Petr Tesarik > > Skip searching the software IO TLB if a device has never used it, making > sure these devices are not affected by the introduction of multiple IO TLB > memory pools. > > Additional memory barrier is required to ensure that the new value of the > flag