mm-demotion-expose-memory-tier-details-via-sysfs.patch removed from -mm tree

The quilt patch titled
Subject: mm/demotion: expose memory tier details via sysfs
has been removed from the -mm tree. Its filename was
mm-demotion-expose-memory-tier-details-via-sysfs.patch

This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: "Aneesh Kumar K.V" <[email protected]>
Subject: mm/demotion: expose memory tier details via sysfs
Date: Tue, 30 Aug 2022 13:47:36 +0530

Add /sys/devices/virtual/memory_tiering/ where all memory tier related details can be found. All allocated memory tiers will be listed there as /sys/devices/virtual/memory_tiering/memory_tierN/

The nodes which are part of a specific memory tier can be listed via /sys/devices/virtual/memory_tiering/memory_tierN/nodes

A directory hierarchy looks like

:/sys/devices/virtual/memory_tiering$ tree memory_tier4/
memory_tier4/
├── nodes
├── subsystem -> ../../../../bus/memory_tiering
└── uevent

:/sys/devices/virtual/memory_tiering$ cat memory_tier4/nodes
0,2

---

 Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers |   25 ++
 mm/memory-tiers.c                                      |  109 +++++++---
 2 files changed, 112 insertions(+), 22 deletions(-)

@@ -0,0 +1,25 @@
+What:		/sys/devices/virtual/memory_tiering/
+Date:		August 2022
+Contact:	Linux memory management mailing list <[email protected]>
+Description:	A collection of all the memory tiers allocated.
+
+		Individual memory tier details are contained in subdirectories
+		named by the abstract distance of the memory tier.
+
+		/sys/devices/virtual/memory_tiering/memory_tierN/
+
+
+What:		/sys/devices/virtual/memory_tiering/memory_tierN/
+		/sys/devices/virtual/memory_tiering/memory_tierN/nodes
+Date:		August 2022
+Contact:	Linux memory management mailing list <[email protected]>
+Description:	Directory with details of a specific memory tier
+
+		This is the directory containing information about a particular
+		memory tier, memtierN, where N is derived based on abstract distance.
+
+		A smaller value of N implies a higher (faster) memory tier in the
+		hierarchy.
+
+		nodes: NUMA nodes that are part of this memory tier.
+

_

Patches currently in -mm which might be from [email protected] are