mm/damon/sysfs: remove damon_sysfs_before_terminate()

DAMON core layer does target cleanup on its own.  Remove duplicated and
unnecessarily selective cleanup attempts in DAMON sysfs interface.

Link: https://lkml.kernel.org/r/20250712195016.151108-14-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/sysfs.c b/mm/damon/sysfs.c
index b0f7c60d655a9105dd1529223e51a7b1a3afec34..cce2c8a296e247b2e7e8774c5134ac64cad2cc55 100644 (file)
--- a/mm/damon/sysfs.c
+++ b/mm/damon/sysfs.c
@@ -1361,17 +1361,6 @@ static int damon_sysfs_add_targets(struct damon_ctx *ctx,
        return 0;
 }
 
-static void damon_sysfs_before_terminate(struct damon_ctx *ctx)
-{
-       struct damon_target *t, *next;
-
-       if (!damon_target_has_pid(ctx))
-               return;
-
-       damon_for_each_target_safe(t, next, ctx)
-               damon_destroy_target(t, ctx);
-}
-
 /*
  * damon_sysfs_upd_schemes_stats() - Update schemes stats sysfs files.
  * @data:      The kobject wrapper that associated to the kdamond thread.
@@ -1516,7 +1505,6 @@ static struct damon_ctx *damon_sysfs_build_ctx(
                return ERR_PTR(err);
        }
 
-       ctx->callback.before_terminate = damon_sysfs_before_terminate;
        return ctx;
 }