Am 05.02.21 um 20:47 schrieb John Stultz:
On Fri, Feb 5, 2021 at 12:28 AM Christian König
<christian.koenig@xxxxxxx> wrote:
Am 05.02.21 um 09:06 schrieb John Stultz:
This refactors ttm_pool_free_page(), and by adding extra entries
to ttm_pool_page_dat, we then use it for all allocations, which
allows us to simplify the arguments needed to be passed to
ttm_pool_free_page().
This is a clear NAK since the peer page data is just a workaround for
the DMA-API hack to grab pages from there.
Adding this to all pages would increase the memory footprint drastically.
Yea, that's a good point! Hrm... bummer. I'll have to see if there's
some other way I can get the needed context for the free from the
generic page-pool side.
What exactly is the problem here? As far as I can see we just have the
lru entry (list_head) and the pool.
How the lru is cast to the page can be completely pool implementation
specific.
Regards,
Christian.
Thanks so much for the review!
-john
