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f2fs: add nodiscard mount option

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This patch adds 'nodiscard' mount option.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2016-07-03 22:05:14 +08:00
committed by Jaegeuk Kim
parent 72e1c797b5
commit 64058be9c8
2 changed files with 7 additions and 1 deletions
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Documentation/filesystems/f2fs.txt
+3 -1
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@@ -109,7 +109,9 @@ background_gc=%s Turn on/off cleaning operations, namely garbage
disable_roll_forward Disable the roll-forward recovery routine
norecovery Disable the roll-forward recovery routine, mounted read-
only (i.e., -o ro,disable_roll_forward)
discard Issue discard/TRIM commands when a segment is cleaned.
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.