[PATCH 05/10] mm/damon/sysfs: use damon_call() for commit_schemes_quota_goals

SeongJae Park
2025-01-03T17:44:16Z

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.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
mm/damon/sysfs.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c
index 708c2ffdd620..7c2aa9830edc 100644
--- 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);
--
2.39.5