On Mon, Apr 04, 2022 at 01:02:42PM -0700, Yang Shi wrote: > The readonly FS THP relies on khugepaged to collapse THP for suitable > vmas. But it is kind of "random luck" for khugepaged to see the > readonly FS vmas (see report: https://lore.kernel.org/linux-mm/00f195d4-d039-3cf2-d3a1-a2c88de397a0@xxxxxxx/) since currently the vmas are registered to khugepaged when: I still don't see the point. The effort should be put into supporting large folios, not in making this hack work better.
