修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/Documentation/ABI/testing/sysfs-fs-f2fs
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@@ -271,11 +271,16 @@
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 What:		/sys/fs/f2fs/<disk>/gc_urgent
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 Date:		August 2017
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 Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>
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-Description:	Do background GC agressively when set. When gc_urgent = 1,
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-		background thread starts to do GC by given gc_urgent_sleep_time
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-		interval. When gc_urgent = 2, F2FS will lower the bar of
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-		checking idle in order to process outstanding discard commands
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-		and GC a little bit aggressively. It is set to 0 by default.
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+Description:	Do background GC aggressively when set. Set to 0 by default.
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+		gc urgent high(1): does GC forcibly in a period of given
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+		gc_urgent_sleep_time and ignores I/O idling check. uses greedy
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+		GC approach and turns SSR mode on.
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+		gc urgent low(2): lowers the bar of checking I/O idling in
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+		order to process outstanding discard commands and GC a
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+		little bit aggressively. uses cost benefit GC approach.
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+		gc urgent mid(3): does GC forcibly in a period of given
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+		gc_urgent_sleep_time and executes a mid level of I/O idling check.
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+		uses cost benefit GC approach.
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 What:		/sys/fs/f2fs/<disk>/gc_urgent_sleep_time
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 Date:		August 2017
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@@ -506,7 +511,7 @@
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 Contact:	"Daeho Jeong" <daehojeong@google.com>
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 Description:	Show how many segments have been reclaimed by GC during a specific
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 		GC mode (0: GC normal, 1: GC idle CB, 2: GC idle greedy,
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-		3: GC idle AT, 4: GC urgent high, 5: GC urgent low)
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+		3: GC idle AT, 4: GC urgent high, 5: GC urgent low 6: GC urgent mid)
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 		You can re-initialize this value to "0".
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 What:		/sys/fs/f2fs/<disk>/gc_segment_mode