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authorJaegeuk Kim <jaegeuk.kim@samsung.com>2013-10-24 10:49:07 +0400
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-10-25 11:54:39 +0400
commitea91e9b043057d29e092dd4d0a13cd79b78fb5b5 (patch)
tree7c1fd29422b30d5b60380a9e3b8c86e9b98edf1a /Documentation/filesystems
parent4660f9c0fe484353b17a4b9d1cc2b036fa895f76 (diff)
downloadlinux-ea91e9b043057d29e092dd4d0a13cd79b78fb5b5.tar.xz
f2fs: add reclaiming control by sysfs
This patch adds a control method in sysfs to reclaim prefree segments. Signed-off-by: Changman Lee <cm224.lee@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'Documentation/filesystems')
-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 3cd27bed6349..4c647c280dcc 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -164,6 +164,12 @@ Files in /sys/fs/f2fs/<devname>
gc_idle = 1 will select the Cost Benefit approach
& setting gc_idle = 2 will select the greedy aproach.
+ reclaim_segments This parameter controls the number of prefree
+ segments to be reclaimed. If the number of prefree
+ segments is larger than this number, f2fs tries to
+ conduct checkpoint to reclaim the prefree segments
+ to free segments. By default, 100 segments, 200MB.
+
================================================================================
USAGE
================================================================================