From: Jaegeuk Kim Date: Thu, 19 Dec 2013 08:44:41 +0000 (+0900) Subject: f2fs: add description about small_discards in document X-Git-Tag: firefly_0821_release~176^2~4598^2~39 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ba0697ec98f0244ea180ce336f399d1a24eb7bf8;p=firefly-linux-kernel-4.4.55.git 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 --- diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt index 1a94ac7fee86..02357e35d4f6 100644 --- a/Documentation/filesystems/f2fs.txt +++ b/Documentation/filesystems/f2fs.txt @@ -171,6 +171,12 @@ Files in /sys/fs/f2fs/ 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,