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-rw-r--r--Documentation/filesystems/f2fs.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index 1a94ac7fee86..02357e35d4f6 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -171,6 +171,12 @@ Files in /sys/fs/f2fs/<devname>
conduct checkpoint to reclaim the prefree segments
to free segments. By default, 100 segments, 200MB.
+ max_small_discards This parameter controls the number of discard
+ commands that consist small blocks less than 2MB.
+ The candidates to be discarded are cached until
+ checkpoint is triggered, and issued during the
+ checkpoint. By default, it is disabled with 0.
+
ipu_policy This parameter controls the policy of in-place
updates in f2fs. There are five policies:
0: F2FS_IPU_FORCE, 1: F2FS_IPU_SSR,