f2fs: introduce -o fastboot for reducing booting time only
If a system wants to reduce the booting time as a top priority, now we can
use a mount option, -o fastboot.
With this option, f2fs conducts a little bit slow write_checkpoint, but
it can avoid the node page reads during the next mount time.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index 4bb9f27..e0950c4 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -135,6 +135,9 @@
If this option is set, no cache_flush commands are issued
but f2fs still guarantees the write ordering of all the
data writes.
+fastboot This option is used when a system wants to reduce mount
+ time as much as possible, even though normal performance
+ can be sacrificed.
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