diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 5e603b808487..95a5e6ef7e80 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1656,7 +1656,14 @@ void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi)
 	}
 }
 
-/* This comes from f2fs_put_super */
+/**
+ * f2fs_issue_discard_timeout() - Issue all discard cmd within UMOUNT_DISCARD_TIMEOUT
+ * @sbi: the f2fs_sb_info data for discard cmd to issue
+ *
+ * When UMOUNT_DISCARD_TIMEOUT is exceeded, all remaining discard commands will be dropped
+ *
+ * Return true if issued all discard cmd or no discard cmd need issue, otherwise return false.
+ */
 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi)
 {
 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
@@ -1664,7 +1671,7 @@ bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi)
 	bool dropped;
 
 	if (!atomic_read(&dcc->discard_cmd_cnt))
-		return false;
+		return true;
 
 	__init_discard_policy(sbi, &dpolicy, DPOLICY_UMOUNT,
 					dcc->discard_granularity);
@@ -1675,7 +1682,7 @@ bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi)
 	__wait_all_discard_cmd(sbi, NULL);
 
 	f2fs_bug_on(sbi, atomic_read(&dcc->discard_cmd_cnt));
-	return dropped;
+	return !dropped;
 }
 
 static int issue_discard_thread(void *data)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index ab8a77ffc1f4..fddff5deaed2 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1546,7 +1546,7 @@ static void f2fs_put_super(struct super_block *sb)
 {
 	struct f2fs_sb_info *sbi = F2FS_SB(sb);
 	int i;
-	bool dropped;
+	bool done;
 
 	/* unregister procfs/sysfs entries in advance to avoid race case */
 	f2fs_unregister_sysfs(sbi);
@@ -1576,9 +1576,8 @@ static void f2fs_put_super(struct super_block *sb)
 	}
 
 	/* be sure to wait for any on-going discard commands */
-	dropped = f2fs_issue_discard_timeout(sbi);
-
-	if (f2fs_realtime_discard_enable(sbi) && !sbi->discard_blks && !dropped) {
+	done = f2fs_issue_discard_timeout(sbi);
+	if (f2fs_realtime_discard_enable(sbi) && !sbi->discard_blks && done) {
 		struct cp_control cpc = {
 			.reason = CP_UMOUNT | CP_TRIMMED,
 		};