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-rw-r--r--Documentation/filesystems/f2fs.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index 51afba17bbae..a2046a7d0a9d 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -126,6 +126,11 @@ flush_merge Merge concurrent cache_flush commands as much as possible
to eliminate redundant command issues. If the underlying
device handles the cache_flush command relatively slowly,
recommend to enable this option.
+nobarrier This option can be used if underlying storage guarantees
+ its cached data should be written to the novolatile area.
+ If this option is set, no cache_flush commands are issued
+ but f2fs still guarantees the write ordering of all the
+ data writes.
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DEBUGFS ENTRIES