1What:		/sys/fs/f2fs/<disk>/gc_max_sleep_time
 2Date:		July 2013
 3Contact:	"Namjae Jeon" <namjae.jeon@samsung.com>
 4Description:
 5		 Controls the maximun sleep time for gc_thread. Time
 6		 is in milliseconds.
 7
 8What:		/sys/fs/f2fs/<disk>/gc_min_sleep_time
 9Date:		July 2013
10Contact:	"Namjae Jeon" <namjae.jeon@samsung.com>
11Description:
12		 Controls the minimum sleep time for gc_thread. Time
13		 is in milliseconds.
14
15What:		/sys/fs/f2fs/<disk>/gc_no_gc_sleep_time
16Date:		July 2013
17Contact:	"Namjae Jeon" <namjae.jeon@samsung.com>
18Description:
19		 Controls the default sleep time for gc_thread. Time
20		 is in milliseconds.
21
22What:		/sys/fs/f2fs/<disk>/gc_idle
23Date:		July 2013
24Contact:	"Namjae Jeon" <namjae.jeon@samsung.com>
25Description:
26		 Controls the victim selection policy for garbage collection.
27
28What:		/sys/fs/f2fs/<disk>/reclaim_segments
29Date:		October 2013
30Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com>
31Description:
32		 Controls the issue rate of segment discard commands.
33
34What:		/sys/fs/f2fs/<disk>/ipu_policy
35Date:		November 2013
36Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com>
37Description:
38		 Controls the in-place-update policy.
39
40What:		/sys/fs/f2fs/<disk>/min_ipu_util
41Date:		November 2013
42Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com>
43Description:
44		 Controls the FS utilization condition for the in-place-update
45		 policies.
46
47What:		/sys/fs/f2fs/<disk>/max_small_discards
48Date:		November 2013
49Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com>
50Description:
51		 Controls the issue rate of small discard commands.
52
53What:		/sys/fs/f2fs/<disk>/max_victim_search
54Date:		January 2014
55Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com>
56Description:
57		 Controls the number of trials to find a victim segment.
58
59What:		/sys/fs/f2fs/<disk>/dir_level
60Date:		March 2014
61Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com>
62Description:
63		 Controls the directory level for large directory.
64
65What:		/sys/fs/f2fs/<disk>/ram_thresh
66Date:		March 2014
67Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com>
68Description:
69		 Controls the memory footprint used by f2fs.