Messages in this thread | | | From | Michal Hocko <> | Subject | [PATCH 0/2] do not squash mapping flags and gfp_mask together (was: Re: [PATCH -v2] mm: Don't use radix tree writeback tags for pages in) | Date | Mon, 12 Sep 2016 13:16:06 +0200 |
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On Thu 01-09-16 11:13:47, Michal Hocko wrote: > On Wed 31-08-16 14:30:31, Andrew Morton wrote: > > On Wed, 31 Aug 2016 10:14:59 +0100 Mel Gorman <mgorman@techsingularity.net> wrote: [...] > > > I didn't see anything wrong with the patch but it's worth highlighting > > > that this hunk means we are now out of GFP bits. > > > > Well ugh. What are we to do about that? > > Can we simply give these AS_ flags their own word in mapping rather than > squash them together with gfp flags and impose the restriction on the > number of gfp flags. There was some demand for new gfp flags already and > mapping flags were in the way.
OK, it seems this got unnoticed. What do you think about the following two patches? I have only compile tested them and git grep suggests nobody else should be relying on storing gfp_mask into flags directly. So either I my grep-foo fools me or this should be safe. The two patches will come as a reply to this email.
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