The patch titled Subject: mm: compaction: add missing kcompactd wakeup trace event has been added to the -mm mm-unstable branch. Its filename is mm-compaction-add-missing-kcompactd-wakeup-trace-event.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-compaction-add-missing-kcompactd-wakeup-trace-event.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx> Subject: mm: compaction: add missing kcompactd wakeup trace event Date: Tue, 10 Jan 2023 21:36:21 +0800 Add missing kcompactd wakeup trace event for proactive compaction, meanwhile use order = -1 and the highest zone index of the pgdat for the kcompactd wakeup trace event by proactive compaction. Link: https://lkml.kernel.org/r/cbf8097a2d8a1b6800991f2a21575550d3613ce6.1673342761.git.baolin.wang@xxxxxxxxxxxxxxxxx Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx> Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/compaction.c | 2 ++ 1 file changed, 2 insertions(+) --- a/mm/compaction.c~mm-compaction-add-missing-kcompactd-wakeup-trace-event +++ a/mm/compaction.c @@ -2730,6 +2730,8 @@ int compaction_proactiveness_sysctl_hand continue; pgdat->proactive_compact_trigger = true; + trace_mm_compaction_wakeup_kcompactd(pgdat->node_id, -1, + pgdat->nr_zones - 1); wake_up_interruptible(&pgdat->kcompactd_wait); } } _ Patches currently in -mm which might be from baolin.wang@xxxxxxxxxxxxxxxxx are mm-compaction-remove-redundant-vm_bug_on-in-compact_zone.patch mm-compaction-move-list-validation-into-compact_zone.patch mm-compaction-count-the-migration-scanned-pages-events-for-proactive-compaction.patch mm-compaction-add-missing-kcompactd-wakeup-trace-event.patch mm-compaction-avoid-fragmentation-score-calculation-for-empty-zones.patch