From a258af7a3e395a1d36190c81614dca0bcb5f6012 Mon Sep 17 00:00:00 2001 From: Qu Wenruo Date: Mon, 6 Jan 2014 09:58:31 +0800 Subject: btrfs: Add datacow mount option. Add datacow mount option to enable copy-on-write with remount option. Signed-off-by: Qu Wenruo Reviewed-by: David Sterba Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- Documentation/filesystems/btrfs.txt | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/btrfs.txt b/Documentation/filesystems/btrfs.txt index 79c08f368ace..bbd1f0f57ce9 100644 --- a/Documentation/filesystems/btrfs.txt +++ b/Documentation/filesystems/btrfs.txt @@ -154,9 +154,10 @@ Options with (*) are default options and will not show in the mount options. (non-battery-backed) write-back cache, nobarrier option will lead to filesystem corruption on a system crash or power loss. + datacow(*) nodatacow - Disable data copy-on-write for newly created files. Implies nodatasum, - and disables all compression. + Enable/disable data copy-on-write for newly created files. + Nodatacow implies nodatasum, and disables all compression. nodatasum Disable data checksumming for newly created files. -- cgit v1.2.3