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authorSeongJae Park <sj@kernel.org>2022-10-26 22:59:38 +0000
committerAndrew Morton <akpm@linux-foundation.org>2022-11-30 15:01:25 -0800
commit39240595917ec0c4f71d7b9dd7909790715968b5 (patch)
tree9e5bc81859c5a0fba6b1e8ddd6e5897719dbef6d /mm/damon/sysfs-common.h
parent1f71981408ef5696ad8544f282d336d4fc60a807 (diff)
mm/damon/sysfs: move sysfs_lock to common module
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/20221026225943.100429-8-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/damon/sysfs-common.h')
-rw-r--r--mm/damon/sysfs-common.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/damon/sysfs-common.h b/mm/damon/sysfs-common.h
new file mode 100644
index 000000000000..745a918b94f5
--- /dev/null
+++ b/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@kernel.org>
+ */
+
+#include <linux/damon.h>
+#include <linux/kobject.h>
+
+extern struct mutex damon_sysfs_lock;