UBIFS: remove fast unmounting

This UBIFS feature has never worked properly, and it was a mistake
to add it because we simply have no use-cases. So, lets still accept
the fast_unmount mount option, but ignore it. This does not change
much, because UBIFS commit in sync_fs anyway, and sync_fs is called
while unmounting.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

1 files changed, 0 insertions, 7 deletions

diff --git a/Documentation/filesystems/ubifs.txt b/Documentation/filesystems/ubifs.txt
index 84da2a4ba25a..12fedb7834c6 100644
--- a/Documentation/filesystems/ubifs.txt
+++ b/Documentation/filesystems/ubifs.txt
@@ -79,13 +79,6 @@ Mount options
 
 (*) == default.
 
-norm_unmount (*)        commit on unmount; the journal is committed
-                        when the file-system is unmounted so that the
-                        next mount does not have to replay the journal
-                        and it becomes very fast;
-fast_unmount            do not commit on unmount; this option makes
-                        unmount faster, but the next mount slower
-                        because of the need to replay the journal.
 bulk_read               read more in one go to take advantage of flash
                         media that read faster sequentially
 no_bulk_read (*)        do not bulk-read