[RFC PATCH 57/57] MAINTAINERS: add an entry for collapse

[Kiryl Shutsemau]

From: "Kiryl Shutsemau (Meta)" <kas@xxxxxxxxxx>

Collapse is now its own body of code: mm/collapse.c, a header stating what
it offers a caller, and its own tracepoint family.  It has two callers,
the khugepaged daemon and MADV_COLLAPSE, rather than living inside one of
them.

Add a section for it, and move what belongs to it out of the THP entry:
khugepaged.c and its header, the trace header, the selftests, and
mm_slot.h.

The selftests are matched as khugepaged*.c, which also covers the race and
sync-check harnesses the THP entry did not list.  mm_slot.h stays listed
under KSM as well, which is the other user of it.

Assisted-by: Claude-Code:claude-opus-5
Signed-off-by: Kiryl Shutsemau (Meta) <kas@xxxxxxxxxx>
---
 MAINTAINERS | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 7c179b333e4e..4e4e5030b979 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -16955,6 +16955,20 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
 F:	include/linux/balloon.h
 F:	mm/balloon.c
 
+MEMORY MANAGEMENT - COLLAPSE
+M:	Kiryl Shutsemau <kas@xxxxxxxxxx>
+L:	linux-mm@xxxxxxxxx
+S:	Maintained
+W:	http://www.linux-mm.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
+F:	include/linux/khugepaged.h
+F:	include/trace/events/collapse.h
+F:	mm/collapse.c
+F:	mm/collapse.h
+F:	mm/khugepaged.c
+F:	mm/mm_slot.h
+F:	tools/testing/selftests/mm/khugepaged*.c
+
 MEMORY MANAGEMENT - CORE
 M:	Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
 M:	David Hildenbrand <david@xxxxxxxxxx>
@@ -17272,12 +17286,7 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
 F:	Documentation/ABI/testing/sysfs-kernel-mm-transparent-hugepage
 F:	Documentation/admin-guide/mm/transhuge.rst
 F:	include/linux/huge_mm.h
-F:	include/linux/khugepaged.h
-F:	include/trace/events/collapse.h
 F:	mm/huge_memory.c
-F:	mm/khugepaged.c
-F:	mm/mm_slot.h
-F:	tools/testing/selftests/mm/khugepaged.c
 F:	tools/testing/selftests/mm/split_huge_page_test.c
 F:	tools/testing/selftests/mm/transhuge-stress.c
 
-- 
2.54.0