mm/damon/sysfs: use damon_call() for commit_schemes_quota_goals

DAMON sysfs interface uses damon_callback with its own synchronization
facility to handle commit_schemes_quota_goals command.  But damon_call()
can support the use case without the additional synchronizations.  Convert
the code to use damon_call() instead.

Link: https://lkml.kernel.org/r/20250103174400.54890-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c
index 708c2ffdd620c6216836722a161e1bd6f6966037..7c2aa9830edc03ed07456767e67b0a5a18536907 100644 (file)
--- a/mm/damon/sysfs.c
+++ b/mm/damon/sysfs.c
@@ -1307,9 +1307,9 @@ static int damon_sysfs_commit_input(struct damon_sysfs_kdamond *kdamond)
        return err;
 }
 
-static int damon_sysfs_commit_schemes_quota_goals(
-               struct damon_sysfs_kdamond *sysfs_kdamond)
+static int damon_sysfs_commit_schemes_quota_goals(void *data)
 {
+       struct damon_sysfs_kdamond *sysfs_kdamond = data;
        struct damon_ctx *ctx;
        struct damon_sysfs_context *sysfs_ctx;
 
@@ -1376,9 +1376,6 @@ static int damon_sysfs_cmd_request_callback(struct damon_ctx *c, bool active,
                        goto out;
                err = damon_sysfs_commit_input(kdamond);
                break;
-       case DAMON_SYSFS_CMD_COMMIT_SCHEMES_QUOTA_GOALS:
-               err = damon_sysfs_commit_schemes_quota_goals(kdamond);
-               break;
        case DAMON_SYSFS_CMD_UPDATE_SCHEMES_TRIED_BYTES:
                total_bytes_only = true;
                fallthrough;
@@ -1543,6 +1540,10 @@ static int damon_sysfs_handle_cmd(enum damon_sysfs_cmd cmd,
                return damon_sysfs_turn_damon_on(kdamond);
        case DAMON_SYSFS_CMD_OFF:
                return damon_sysfs_turn_damon_off(kdamond);
+       case DAMON_SYSFS_CMD_COMMIT_SCHEMES_QUOTA_GOALS:
+               return damon_sysfs_damon_call(
+                               damon_sysfs_commit_schemes_quota_goals,
+                               kdamond);
        case DAMON_SYSFS_CMD_UPDATE_SCHEMES_STATS:
                return damon_sysfs_damon_call(
                                damon_sysfs_upd_schemes_stats, kdamond);