summaryrefslogtreecommitdiffstats
path: root/Documentation
diff options
context:
space:
mode:
authorJaegeuk Kim <jaegeuk.kim@samsung.com>2013-12-19 17:44:41 +0900
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-12-23 10:18:07 +0900
commitba0697ec98f0244ea180ce336f399d1a24eb7bf8 (patch)
treeec801b706b171f164266c72592e718ab40482822 /Documentation
parent5459aa9770fe2e8c6a660a0985ea454c42cfd8c1 (diff)
downloadop-kernel-dev-ba0697ec98f0244ea180ce336f399d1a24eb7bf8.zip
op-kernel-dev-ba0697ec98f0244ea180ce336f399d1a24eb7bf8.tar.gz
f2fs: add description about small_discards in document
This patch adds a description about small_disacrds in the f2fs document. Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/filesystems/f2fs.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index 1a94ac7..02357e3 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -171,6 +171,12 @@ Files in /sys/fs/f2fs/<devname>
conduct checkpoint to reclaim the prefree segments
to free segments. By default, 100 segments, 200MB.
+ max_small_discards This parameter controls the number of discard
+ commands that consist small blocks less than 2MB.
+ The candidates to be discarded are cached until
+ checkpoint is triggered, and issued during the
+ checkpoint. By default, it is disabled with 0.
+
ipu_policy This parameter controls the policy of in-place
updates in f2fs. There are five policies:
0: F2FS_IPU_FORCE, 1: F2FS_IPU_SSR,
OpenPOWER on IntegriCloud