From fc0ca9af180b91aad2fbf2fe3b16a12e1e05a760 Mon Sep 17 00:00:00 2001 From: Qu Wenruo Date: Mon, 6 Jan 2014 09:58:26 +0800 Subject: btrfs: Add noautodefrag mount option. Btrfs has autodefrag mount option but no pairing noautodefrag option, which makes it impossible to disable autodefrag without umount. Signed-off-by: Qu Wenruo Reviewed-by: David Sterba Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- Documentation/filesystems/btrfs.txt | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'Documentation/filesystems/btrfs.txt') diff --git a/Documentation/filesystems/btrfs.txt b/Documentation/filesystems/btrfs.txt index ce487a2a88f8..e87609a4e21c 100644 --- a/Documentation/filesystems/btrfs.txt +++ b/Documentation/filesystems/btrfs.txt @@ -46,10 +46,12 @@ Options with (*) are default options and will not show in the mount options. bytes, optionally with a K, M, or G suffix, case insensitive. Default is 1MB. + noautodefrag(*) autodefrag - Detect small random writes into files and queue them up for the - defrag process. Works best for small files; Not well suited for - large database workloads. + Disable/enable auto defragmentation. + Auto defragmentation detects small random writes into files and queue + them up for the defrag process. Works best for small files; + Not well suited for large database workloads. check_int check_int_data -- cgit v1.2.3