The patch titled
Subject: mm/damon/sysfs: move sysfs_lock to common module
has been added to the -mm mm-unstable branch. Its filename is
mm-damon-sysfs-move-sysfs_lock-to-common-module.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-sysfs-move-sysfs_lock-to-common-module.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: mm/damon/sysfs: move sysfs_lock to common module
Date: Mon, 24 Oct 2022 20:49:15 +0000
DAMON sysfs interface is implemented in a single file, sysfs.c, which has
about 2,800 lines of code. As the interface is hierarchical and some of
the code can be reused by different hierarchies, it would make more sense
to split out the implementation into common parts and different parts in
multiple files. As the beginning of the work, create files for common
code and move the global mutex for directories modifications protection
into the new file.
Link: https://lkml.kernel.org/r/20221024204919.18524-8-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/damon/Makefile | 2 +-
mm/damon/sysfs-common.c | 11 +++++++++++
mm/damon/sysfs-common.h | 11 +++++++++++
mm/damon/sysfs.c | 4 +---
4 files changed, 24 insertions(+), 4 deletions(-)
--- a/mm/damon/Makefile~mm-damon-sysfs-move-sysfs_lock-to-common-module
+++ a/mm/damon/Makefile
@@ -3,7 +3,7 @@
obj-y := core.o
obj-$(CONFIG_DAMON_VADDR) += ops-common.o vaddr.o
obj-$(CONFIG_DAMON_PADDR) += ops-common.o paddr.o
-obj-$(CONFIG_DAMON_SYSFS) += sysfs.o
+obj-$(CONFIG_DAMON_SYSFS) += sysfs-common.o sysfs.o
obj-$(CONFIG_DAMON_DBGFS) += dbgfs.o
obj-$(CONFIG_DAMON_RECLAIM) += reclaim.o
obj-$(CONFIG_DAMON_LRU_SORT) += lru_sort.o
--- a/mm/damon/sysfs.c~mm-damon-sysfs-move-sysfs_lock-to-common-module
+++ a/mm/damon/sysfs.c
@@ -5,13 +5,11 @@
* Copyright (c) 2022 SeongJae Park <sj@xxxxxxxxxx>
*/
-#include <linux/damon.h>
-#include <linux/kobject.h>
#include <linux/pid.h>
#include <linux/sched.h>
#include <linux/slab.h>
-static DEFINE_MUTEX(damon_sysfs_lock);
+#include "sysfs-common.h"
/*
* unsigned long range directory
--- /dev/null
+++ a/mm/damon/sysfs-common.c
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Common Primitives for DAMON Sysfs Interface
+ *
+ * Author: SeongJae Park <sj@xxxxxxxxxx>
+ */
+
+#include "sysfs-common.h"
+
+DEFINE_MUTEX(damon_sysfs_lock);
+
--- /dev/null
+++ a/mm/damon/sysfs-common.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common Primitives for DAMON Sysfs Interface
+ *
+ * Author: SeongJae Park <sj@xxxxxxxxxx>
+ */
+
+#include <linux/damon.h>
+#include <linux/kobject.h>
+
+extern struct mutex damon_sysfs_lock;
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
mm-damon-core-split-out-damos-charged-region-skip-logic-into-a-new-function.patch
mm-damon-core-split-damos-application-logic-into-a-new-function.patch
mm-damon-core-split-out-scheme-stat-update-logic-into-a-new-function.patch
mm-damon-core-split-out-scheme-quota-adjustment-logic-into-a-new-function.patch
mm-damon-sysfs-use-damon_addr_range-for-regions-start-and-end-values.patch
mm-damon-sysfs-remove-parameters-of-damon_sysfs_region_alloc.patch
mm-damon-sysfs-move-sysfs_lock-to-common-module.patch
mm-damon-sysfs-move-unsigned-long-range-directory-to-common-module.patch
mm-damon-sysfs-split-out-kdamond-independent-schemes-stats-update-logic-into-a-new-function.patch
mm-damon-modules-deduplicate-init-steps-for-damon-context-setup.patch
mm-damon-reclaimlru_sort-remove-unnecessarily-included-headers.patch
