blkcg: Restructure blkg_conf_prep() and friends

[tomoyo/tomoyo-test1.git] / block / blk-throttle.c

diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 47e9d8b..9bac953 100644 (file)
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -1368,9 +1368,11 @@ static ssize_t tg_set_conf(struct kernfs_open_file *of,
        int ret;
        u64 v;
 
-       ret = blkg_conf_prep(blkcg, &blkcg_policy_throtl, buf, &ctx);
+       blkg_conf_init(&ctx, buf);
+
+       ret = blkg_conf_prep(blkcg, &blkcg_policy_throtl, &ctx);
        if (ret)
-               return ret;
+               goto out_finish;
 
        ret = -EINVAL;
        if (sscanf(ctx.body, "%llu", &v) != 1)
@@ -1389,7 +1391,7 @@ static ssize_t tg_set_conf(struct kernfs_open_file *of,
        tg_conf_updated(tg, false);
        ret = 0;
 out_finish:
-       blkg_conf_finish(&ctx);
+       blkg_conf_exit(&ctx);
        return ret ?: nbytes;
 }
 
@@ -1561,9 +1563,11 @@ static ssize_t tg_set_limit(struct kernfs_open_file *of,
        int ret;
        int index = of_cft(of)->private;
 
-       ret = blkg_conf_prep(blkcg, &blkcg_policy_throtl, buf, &ctx);
+       blkg_conf_init(&ctx, buf);
+
+       ret = blkg_conf_prep(blkcg, &blkcg_policy_throtl, &ctx);
        if (ret)
-               return ret;
+               goto out_finish;
 
        tg = blkg_to_tg(ctx.blkg);
        tg_update_carryover(tg);
@@ -1662,7 +1666,7 @@ static ssize_t tg_set_limit(struct kernfs_open_file *of,
                tg->td->limit_valid[LIMIT_LOW]);
        ret = 0;
 out_finish:
-       blkg_conf_finish(&ctx);
+       blkg_conf_exit(&ctx);
        return ret ?: nbytes;
 }