On 6/4/26 10:38, Wandun Chen wrote:
> From: Wandun Chen <[email protected]>
>
> vm.compact_unevictable_allowed=0 is meant to keep compaction from
> touching unevictable folios. In practice there are still two paths
> where it does not take effect. This series fixes them and adds a
> tracepoint to make such issues easier to diagnose in the future.
Gentle ping, any feedback on this series?
Sashiko found a potential compilation error in patch2, I'll address
that along with any review comments in v2.
Best regards,
Wandun
>
> Wandun Chen (3):
> mm/compaction: skip isolate mlocked folios when
> compact_unevictable_allowed=0
> mm/compaction: add per-folio isolation tracepoint
> mm/compaction: respect compact_unevictable_allowed in alloc_contig
> path
>
> include/linux/compaction.h | 6 ++++++
> include/trace/events/compaction.h | 26 ++++++++++++++++++++++++++
> mm/compaction.c | 14 +++++++++++---
> mm/internal.h | 1 +
> mm/page_alloc.c | 2 ++
> 5 files changed, 46 insertions(+), 3 deletions(-)
>
