mm/damon/modules-common: implement a watermarks module parameters generator macro

DAMON_RECLAIM and DAMON_LRU_SORT have module parameters for watermarks
that having same names.  This commit implements a macro for generating
such module parameters so that we can reuse later.

Link: https://lkml.kernel.org/r/20220913174449.50645-13-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/damon/modules-common.h b/mm/damon/modules-common.h
index 0abd0636bc6497398b69d5a05d3af6dd98c19a0a..1370590a37d1830e3c39ea880a5479d6ae8c5c63 100644 (file)
--- a/mm/damon/modules-common.h
+++ b/mm/damon/modules-common.h
@@ -16,3 +16,10 @@
                        0600);                                          \
        module_param_named(max_nr_regions, attrs.max_nr_regions, ulong, \
                        0600);
+
+#define DEFINE_DAMON_MODULES_WMARKS_PARAMS(wmarks)                     \
+       module_param_named(wmarks_interval, wmarks->interval, ulong,    \
+                       0600);                                          \
+       module_param_named(wmarks_high, wmarks.high, ulong, 0600);      \
+       module_param_named(wmarks_mid, wmarks.mid, ulong, 0600);        \
+       module_param_named(wmarks_low, wmarks.lowulong, 0600);