On Thu, Feb 07, 2019 at 01:25:19PM -0800, David Miller wrote: > From: Ilias Apalodimas <ilias.apalodi...@linaro.org> > Date: Thu, 7 Feb 2019 17:20:34 +0200 > > > Well updating struct page is the final goal, hence the comment. I am mostly > > looking for opinions here since we are trying to store dma addresses which > > are > > irrelevant to pages. Having dma_addr_t definitions in mm-related headers is > > a > > bit controversial isn't it ? If we can add that, then yes the code would > > look > > better > > I fundamentally disagree. > > One of the core operations performed on a page is mapping it so that a device > and use it. > > Why have ancillary data structure support for this all over the place, rather > than in the common spot which is the page. > > A page really is not just a 'mm' structure, it is a system structure.
+1 The fundamental point of computing is to do I/O.
