On Tue, Jul 16, 2024 at 11:33:25AM -0700, SeongJae Park wrote:
Commit 310d6c15e910 ("mm/damon/core: merge regions aggressively when max_nr_regions") causes a build warning and a build failure [1] on 5.15.y. Those are due to
- unnecessarily strict type check from max(), and
- use of not-yet-introduced damon_ctx->attrs field, respectively.
Fix the warning by backporting a minmax.h upstream commit that made the type check less strict for unnecessary case, and upstream commits that it depends on.
Note that all patches except the fourth one ("minmax: fix header inclusions") are clean cherry-picks of upstream commit. For the fourth one, minor conflict resolving was needed.
Also, the last patch, which is the backport of the DAMON fix, was cleanly cherry-picked, but added manual fix for the build failure.
[1] https://lore.kernel.org/2024071532-pebble-jailhouse-48b2@gregkh
All now queued up, again, thank you for the minmax backports, much appreciated.
greg k-h