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authorChao Yu <yuchao0@huawei.com>2016-07-03 22:05:14 +0800
committerMister Oyster <oysterized@gmail.com>2017-04-13 12:33:49 +0200
commit69a611a90ac19e929c2bc9285c59342daf4d4051 (patch)
tree304f28e25040f5634a04383ba4cee4bd1454600e /Documentation/filesystems
parent7c415754037c4271f1a29450f25608c746c91672 (diff)
f2fs: add nodiscard mount option
This patch adds 'nodiscard' mount option. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Conflicts: Documentation/filesystems/f2fs.txt
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r--Documentation/filesystems/f2fs.txt16
1 files changed, 13 insertions, 3 deletions
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index 0ea1a51b1..777aa83cc 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -98,10 +98,20 @@ Cleaning Overhead
MOUNT OPTIONS
================================================================================
-background_gc_off Turn off cleaning operations, namely garbage collection,
- triggered in background when I/O subsystem is idle.
+background_gc=%s Turn on/off cleaning operations, namely garbage
+ collection, triggered in background when I/O subsystem is
+ idle. If background_gc=on, it will turn on the garbage
+ collection and if background_gc=off, garbage collection
+ will be turned off. If background_gc=sync, it will turn
+ on synchronous garbage collection running in background.
+ Default value for this option is on. So garbage
+ collection is on by default.
disable_roll_forward Disable the roll-forward recovery routine
-discard Issue discard/TRIM commands when a segment is cleaned.
+norecovery Disable the roll-forward recovery routine, mounted read-
+ only (i.e., -o ro,disable_roll_forward)
+discard/nodiscard Enable/disable real-time discard in f2fs, if discard is
+ enabled, f2fs will issue discard/TRIM commands when a
+ segment is cleaned.
no_heap Disable heap-style segment allocation which finds free
segments for data from the beginning of main area, while
for node from the end of main area.