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-rw-r--r--Documentation/filesystems/f2fs.rst5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst
index 98dc24f5c6f0..d0c09663dae8 100644
--- a/Documentation/filesystems/f2fs.rst
+++ b/Documentation/filesystems/f2fs.rst
@@ -336,6 +336,11 @@ discard_unit=%s Control discard unit, the argument can be "block", "segment"
default, it is helpful for large sized SMR or ZNS devices to
reduce memory cost by getting rid of fs metadata supports small
discard.
+memory=%s Control memory mode. This supports "normal" and "low" modes.
+ "low" mode is introduced to support low memory devices.
+ Because of the nature of low memory devices, in this mode, f2fs
+ will try to save memory sometimes by sacrificing performance.
+ "normal" mode is the default mode and same as before.
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Debugfs Entries