add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/fs/f2fs/sysfs.c
..
..
@@ -466,6 +466,13 @@
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 			}
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 		} else if (t == 2) {
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 			sbi->gc_mode = GC_URGENT_LOW;
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+		} else if (t == 3) {
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+			sbi->gc_mode = GC_URGENT_MID;
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+			if (sbi->gc_thread) {
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+				sbi->gc_thread->gc_wake = 1;
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+				wake_up_interruptible_all(
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+					&sbi->gc_thread->gc_wait_queue_head);
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+			}
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 		} else {
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 			return -EINVAL;
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 		}
..
..
@@ -496,9 +503,9 @@
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 	if (!strcmp(a->attr.name, "iostat_period_ms")) {
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 		if (t < MIN_IOSTAT_PERIOD_MS || t > MAX_IOSTAT_PERIOD_MS)
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 			return -EINVAL;
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-		spin_lock(&sbi->iostat_lock);
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+		spin_lock_irq(&sbi->iostat_lock);
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 		sbi->iostat_period_ms = (unsigned int)t;
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-		spin_unlock(&sbi->iostat_lock);
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+		spin_unlock_irq(&sbi->iostat_lock);
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 		return count;
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 	}
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