From ea91e9b043057d29e092dd4d0a13cd79b78fb5b5 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Thu, 24 Oct 2013 15:49:07 +0900 Subject: f2fs: add reclaiming control by sysfs This patch adds a control method in sysfs to reclaim prefree segments. Signed-off-by: Changman Lee Signed-off-by: Jaegeuk Kim --- Documentation/filesystems/f2fs.txt | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'Documentation/filesystems') 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/ 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 ================================================================================ -- cgit v1.2.1